CN110562088A - Charging regulation and control system - Google Patents

Charging regulation and control system Download PDF

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Publication number
CN110562088A
CN110562088A CN201911068865.0A CN201911068865A CN110562088A CN 110562088 A CN110562088 A CN 110562088A CN 201911068865 A CN201911068865 A CN 201911068865A CN 110562088 A CN110562088 A CN 110562088A
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China
Prior art keywords
current
charging
adjustable
boost
regulated
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Granted
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CN201911068865.0A
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Chinese (zh)
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CN110562088B (en
Inventor
毛福江
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Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd
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Hengda Wisdom Charging Technology Co Ltd
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Priority to CN201911068865.0A priority Critical patent/CN110562088B/en
Priority to PCT/CN2019/119310 priority patent/WO2021088122A1/en
Publication of CN110562088A publication Critical patent/CN110562088A/en
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Publication of CN110562088B publication Critical patent/CN110562088B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

Abstract

The invention provides a charging regulation and control system, which comprises an electric power acquisition unit, a charging unit and a control unit, wherein the electric power acquisition unit is used for acquiring a real-time electric load; the comparison unit is used for comparing the real-time power load with the safe current threshold value so as to obtain a comparison result; the processing unit is used for calculating the total regulation and control current and at least one adjustable current of the charging equipment according to the comparison result, screening the charging equipment to be regulated and controlled according to the total regulation and control current and the adjustable current, and obtaining a current regulation and control target value of the charging equipment to be regulated and controlled, wherein the current regulation and control target value comprises at least one of a first preset value, a second preset value, a third preset value and 0; and the regulating and controlling unit is used for regulating and controlling the charging current of the charging equipment to be regulated and controlled to at least one of the first preset value, the second preset value, the third preset value and 0. The charging regulation and control system provided by the invention can improve the charging current of the charging equipment under the condition of ensuring the safety of community power utilization, and realizes the intellectualization of charging regulation and control.

Description

Charging regulation and control system
Technical Field
The invention relates to the field of intelligent charging, in particular to a charging regulation and control system for regulating and controlling according to the real-time power load condition of a community.
Background
With the continuous improvement of the scientific and technological level and the living standard of people, more and more people start to buy the car to promote the convenience of life, improve the quality of life. However, as the capacity of the current automobiles is continuously increased, the emission of automobile exhaust has great influence on the ecological environment. In order to improve the increasingly worsened ecological environment, the electric automobile operates, the electric automobile provides energy to drive the vehicle to run through electric power, automobile exhaust cannot be generated in the running process, and the electric automobile has great effects of reducing the automobile exhaust and improving the environmental pollution. But the battery is limited by the development bottleneck of the battery technology of the electric automobile, the endurance mileage of the electric automobile is generally low at present, and the long-time long-distance use of people cannot be met, so that more electric automobile owners can charge the electric automobile in residential communities to meet the use requirements.
However, the charging demand of the car owners in the community is gradually strong, and the problem that the electricity consumption of community residents has a safety upper limit at the same time is that the normal electricity consumption of the residents is influenced and even an electricity consumption safety accident is caused if the new energy automobile is charged in the peak electricity consumption period. The current charging regulation and control mode is that when the total current of electricity consumption of the community exceeds a safe current threshold, the charging regulation and control is generally realized by regulating and reducing the charging current of partial or all charging equipment one by one or in batches. However, the charging regulation and control time is long due to the adoption of the mode of regulating and reducing the charging current of the charging equipment one by one, and the requirement can be met only by charging regulation and control for many times; by adopting a batch regulating charging mode, when the charging current required to be regulated and reduced is uniformly distributed to the charging equipment with larger charging current, the charging equipment with larger charging current is likely to be directly shut down; when the charging current required to be regulated and reduced is uniformly distributed to all the charging devices, the charging current of the charging device with smaller charging current is more regulated and reduced or even shut down, and certain influence is brought to the charging efficiency of all the charging devices of the whole system, so that the regulation and control precision of the regulation and control mode is poorer, the regulation and control mode needs to be charged for multiple times to achieve a better effect, and the load of the charging device cannot be quickly and effectively regulated and controlled within a safety range at one time when the load of a community is higher, so that potential safety hazards exist and normal electricity utilization of community residents is influenced. Therefore, how to quickly and accurately regulate and control the charging current of the charging device to meet the requirement of the safety current threshold when the total community current exceeds the safety threshold becomes an important topic for the construction of the intelligent community charging facility.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a charging regulation and control system which can quickly screen out charging equipment to be regulated and controlled and charging current to be regulated and controlled by the charging equipment, so that the requirement of a safety threshold value can be met through one-time charging regulation and control, the charging efficiency of the charging equipment of the whole system is ensured, and quick and accurate charging regulation and control can be realized.
and charging regulation and control are carried out on the charging equipment according to the real-time power load condition of the community.
In order to achieve the purpose, the invention adopts the following technical scheme:
The invention provides a charging regulation and control system, comprising:
The charging device comprises a power acquisition unit, a charging unit and a control unit, wherein the power acquisition unit is used for acquiring a real-time power load, and the real-time power load comprises residential electricity utilization current and charging current of charging equipment;
the comparison unit is used for comparing the real-time electric load with a safe current threshold value so as to obtain a comparison result;
The processing unit is used for calculating a total regulation and control current and at least one adjustable current of the charging equipment according to the comparison result, screening the charging equipment to be regulated and controlled according to the total regulation and control current and the at least one adjustable current, and obtaining a current regulation and control target value of the charging equipment to be regulated and controlled, wherein the current regulation and control target value comprises at least one of a first preset value, a second preset value, a third preset value and 0;
And the regulating and controlling unit is used for regulating and controlling the charging current of the charging equipment to be regulated and controlled to at least one of the first preset value, the second preset value, the third preset value and 0.
The invention has the beneficial effects that:
The charging regulation and control system provided by the invention can acquire the real-time electric load condition, compare the relation between the real-time electric load condition and the safe current threshold value, quickly calculate at least one adjustable current according to the comparison result and the first preset value or the second preset value or the third preset value, quickly screen the charging equipment to be regulated and controlled according to the total regulation and control current and the at least one adjustable current, and then regulate the charging current of the screened charging equipment to be regulated and controlled to a proper value, so that the requirement of the safe current threshold value of a community can be met through one-time charging regulation and control, the quick and accurate charging regulation and control are realized, the charging equipment with higher charging current cannot be directly shut down when the total regulation and control current is larger, the charging equipment with lower charging current cannot be regulated and reduced when the total regulation and control current is smaller, and the charging efficiency of all the charging equipment in the charging system is ensured, and intelligent power regulation and control are realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope of the present invention.
Fig. 1 is a block diagram of a charging regulation system according to a first embodiment of the present invention;
Fig. 2 is a schematic flow chart of a charging method according to a second embodiment of the present invention.
Detailed Description
Hereinafter, various embodiments of the present invention will be described more fully. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.
Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, is not to be understood as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, e.g., may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: in the present invention, unless otherwise explicitly stated or defined, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, it should be understood by those skilled in the art that the terms indicating an orientation or a positional relationship herein are based on the orientations and the positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation and operate, and thus, should not be construed as limiting the present invention.
The terminology used in the various embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the present invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1, fig. 1 is a block diagram illustrating a charging regulation system according to a first embodiment of the present invention.
in the embodiment, in the community, in order to facilitate charging of residents, the charging equipment is arranged near the community parking space so that users can conveniently use the charging equipment for charging after parking vehicles into the parking space. Further, the charging devices are all connected to the charging regulation and control system 100 to receive the regulation and control instruction of the charging regulation and control system 100 to perform charging regulation and control.
Further, the charging regulation and control system 100 includes a power acquisition unit 10, a comparison unit 20, a processing unit 30, and a regulation and control unit 40. The power acquiring unit 10 is configured to acquire a real-time power load of a community, and transmit the real-time power load to the comparing unit 20, where the real-time power load includes a residential electricity consumption current and a charging current of a charging device, and specifically, in this embodiment, the real-time power load is a sum of the residential electricity consumption current and the charging current of the charging device; the comparing unit 20 is electrically connected to the power acquiring unit 10, and is configured to compare the real-time power load with a pre-stored safe current threshold and obtain a comparison result. The processing unit 30 is electrically connected to the comparing unit 20, and configured to receive the comparison result of the comparing unit 20, calculate a total regulation current and at least one adjustable current of the charging device according to the comparison result, screen the charging device to be regulated according to the total regulation current and the at least one adjustable current, and obtain a current regulation target value of the charging device to be regulated, where the current regulation target value includes at least one of a first preset value, a second preset value, a third preset value, and 0.
Further, in this embodiment, the total regulated current is a total current that the charging device connected to the power grid needs to be regulated down when the real-time power load is not less than the safety current threshold, or a total current that the charging device connected to the power grid needs to be regulated up when the real-time power load is less than the safety current threshold.
Further, in order to keep the community power load stable and therefore require the charging current of the charging device to be adjusted down or up according to the real-time power load condition of the community power grid, the total adjusted current calculated by the processing unit 30 includes the total adjusted current or the total adjusted current. The total regulating current is the sum of charging currents required to be regulated and reduced by all charging equipment in the power grid when the real-time power load is greater than the safe current threshold; and the total regulating current is the sum of charging currents required to be regulated and increased by all charging equipment in the power grid when the real-time power load is smaller than the safe current threshold. For example: when the real-time power load is 20A higher than the safe current threshold, the total regulating current is a total regulating and reducing current, and the total regulating and reducing current is 20A; and when the real-time power load is 10A lower than the safe current, the total regulating current is a total regulating current, and the total regulating current is 10A.
Further, in order to determine how to perform charging regulation, the processing unit 30 needs to further calculate an adjustable current of the charging device, where the adjustable current is a sum of charging currents required to be regulated and reduced by all the charging devices in the power grid, and the charging current is regulated and reduced to at least one of the second preset value, the third preset value, and 0, or the charging current is regulated and increased to at least one of the third preset value, the second preset value, and the first preset value, and is a sum of charging currents required to be regulated and increased. It can be understood that, since the charging current of the charging device needs to be adjusted or decreased according to the real-time power load, the adjustable current includes an adjustable decreasing current and an adjustable increasing current, the adjustable decreasing current and the total adjusting current are correspondingly set to serve as a basis for adjusting and decreasing the charging current of the charging device, and the adjustable decreasing current is the sum of the charging currents that are required to be adjusted and decreased by all the charging devices in the power grid to decrease the charging current to any one of the second preset value, the third preset value and 0; the adjustable boost current is the sum of the charging currents which are required to be boosted by all the charging equipment in the power grid to the third preset value, the second preset value and any one of the first preset values. Further, the adjustable boost current and the total boost current are correspondingly set to serve as a basis for boosting the charging current of the charging equipment. For example, currently, the power grid includes 1 charging device a, the charging current of the charging device a is 31A, in this embodiment, there are three current levels, which are 32A, 16A and 10A respectively, then the adjustable up current is 1A, and the adjustable down current is 15A, 21A or 31A.
Further, in order to ensure the safety of charging regulation, when charging current is regulated and reduced, it is required to ensure that the adjustable reduction current is not less than the total regulation and reduction current, that is, the sum of the charging currents regulated and reduced by all the charging devices is not less than the total regulation and reduction current, and when charging current is regulated and increased, it is required to ensure that the adjustable increase current is not greater than the total regulation and increase current, that is, the sum of the charging currents regulated and increased by all the charging devices is not greater than the total regulation and increase current, so as to ensure that the current of the regulated and controlled charging devices is not greater than the safety current threshold.
The regulating unit 40 is electrically connected to the processing unit 30, and is configured to receive the charging device to be regulated and control and the current regulation target value, and regulate and control the charging current of the charging device to be regulated and control to at least one of the first preset value, the second preset value, the third preset value, and 0. Further, in this embodiment, since the charging current of the charging device can be controlled to any one of the first preset value, the second preset value, the third preset value and 0, the current regulation target value includes at least one of the first preset value, the second preset value, the third preset value and 0.
Further, the power acquisition unit 10 is disposed on the community power line, and is capable of acquiring the power current of the residential and residential power line in the community and the charging current of the charging device, so as to obtain the real-time power load of the community, and since the power current of the residential and residential power line and the charging current of the charging device are in a changing state along with the power consumption of residents and the charging of vehicles, the real-time power load acquired by the power acquisition unit 10 is also in a changing state, and it is possible that the real-time power load exceeds the upper limit of the circuit line of the community along with the increase of the power current of residents or the charging current of the charging device, so as to cause an accident such as tripping. For example: the residential electricity utilization current acquired by the power acquisition unit 10 is 1000A, and the charging current of the charging device is 500A, so that the real-time power load is 1000A +500= 1500A.
Further, the power obtaining unit 10 obtains the real-time power load and then transmits the real-time power load to the comparing unit 20, and the comparing unit 20 compares the real-time power load with a pre-stored safe current threshold to obtain a comparison result. It can be understood that because there is rated current in the community power line, exceed when too big in order to prevent community power consumption electric current rated current sets up factor of safety, according to rated current with factor of safety reachs safe current threshold value will charge when real-time electric load exceeds safe current threshold value and regulate and control in order to prevent the real-time electric load of community reaches or surpasses thereby circumstances such as tripping operation outage of causing of rated current. Further, in this embodiment, the safe current threshold is a product of the rated current of the community power grid and a safety factor. For example: the rated current of the community power grid is 2000A, the safety factor is 0.9, and then the safety current threshold value is 2000A x 0.9= 1800A.
Further, since the safe current threshold is smaller than the rated current, if the real-time power load of the community is smaller than the safe current threshold, it indicates that the total load of the current community is low, and at this time, the charging current of the charging device can be increased to improve the charging efficiency; if the real-time power load of the community is greater than the safe current threshold, the total load of the current community is high, and charging regulation and control are required to be performed in time to reduce the charging current of the charging equipment, so that the electricity consumption of residents is preferentially guaranteed on the premise that the charging current does not exceed the safe current threshold. It is therefore desirable to compare the real-time electrical load and the safe current threshold to determine how to make charging regulations to maintain proper operation of the community grid.
Further, when the comparison result received by the processing unit 30 is that the real-time power load is not less than the safe current threshold, it indicates that the current community load is high and the charging current of the charging device needs to be reduced, at this time, the processing unit 30 needs to calculate the total reduction current, and at the same time, in order to determine how to perform charging regulation, the adjustable reduction current of the charging device needs to be calculated, so as to screen the charging device to be regulated according to the total reduction current and the adjustable reduction current and obtain the current regulation target value of the charging device to be regulated.
Further, when the comparison result received by the processing unit 30 is that the real-time power load is smaller than the safe current threshold, it indicates that the current community load is low and the charging current of the charging device needs to be adjusted, at this time, the processing unit 30 needs to calculate the total adjusted current, and at the same time, in order to determine how to perform charging adjustment and control, it needs to calculate the adjustable current of the charging device, so as to screen the charging device to be adjusted and controlled according to the total adjusted current and the adjustable current and obtain the current adjustment and control target value of the charging device to be adjusted and controlled.
Further, in this embodiment, the processing unit 30 is specifically configured to divide the charging devices into at least one charging set according to the charging current of the charging devices, and select the charging device from the charging set as a charging device to be regulated according to the total regulation current and the adjustable current, and it can be understood that the charging device to be regulated is a charging device that needs to increase the charging current or decrease the charging current. Further, in this embodiment, the charging sets include a first charging set, a second charging set and a third charging set, and the processing unit 30 further classifies charging devices having the charging current not greater than a first preset value and greater than a second preset value into the first charging set, classifies charging devices having the charging current not greater than the second preset value and greater than a third preset value into the second charging set, and classifies charging devices having the charging current not greater than the third preset value into the third charging set. In this embodiment, the first preset value is 32A, the second preset value is 16A, and the third preset value is 10. It can be understood that dividing the charging devices into different charging sets through charging current differences facilitates fast calculation of the level of the adjustable current and comparison of the adjustable current with the total regulation current, thereby fast screening out the charging devices to be regulated and calculating the current regulation target values of the charging devices to be regulated. For example: the power grid comprises a charging device a, a charging device b and a charging device c, wherein the charging current of the charging device a is 30A, the charging current of the charging device b is 28A, the charging current of the charging device c is 25A, and the charging device a, the charging device b and the charging device c are all divided into a first charging set as the three current values of 30A, 28A and 25A are all larger than 16A and smaller than 32A; the power grid comprises a charging device d, a charging device e and a charging device f, the charging current of the charging device d is 22A, the charging current of the charging device e is 20A, the charging current of the charging device c is 15A, the two current values of 22A and 20A are larger than 16A and smaller than 32A, so that the charging device d and the charging device e are classified into a first charging set, and the charging device f is classified into a second charging set because 15A is larger than 10A and smaller than 16A; the charging system comprises a charging device A, a charging device B, a charging device C, a charging device D and a charging device E, wherein the charging current of the charging device A is 20A, the charging current of the charging device B is 25A, the charging current of the charging device C is 15A, the charging current of the charging device D is 9A, and the charging current of the charging device E is 8A, then the processing unit 30 divides the charging device A and the charging device B into the first charging set, divides the charging device C into the second charging set, and divides the charging device D and the charging device E into the third charging set. In summary, since the current value of the charging device in the power grid is between 0 and 32A, when the charging sets are divided, the charging device in the power grid can be divided into at least one charging set.
further, in this embodiment, when the charging device performs current regulation and reduction, the current regulation and control target value is a first preset value, a second preset value, a third preset value or 0, so that when the adjustable reduction current is calculated, the adjustable reduction current can be obtained according to a difference between the current and the first preset value, the second preset value, the third preset value or 0. Further, in this embodiment, when the charging devices of the first charging set, the second charging set, and the third charging set adjust the charging current, the charging devices adjust the charging current in order of the first charging set, the second charging set, and the third charging set. For example: when the charging current is adjusted to be reduced, the charging current of the charging equipment of the first charging set is preferentially adjusted to be reduced to the first preset value, then the charging current of the charging equipment of the second charging set is adjusted to be reduced to the second preset value, then the charging current of the charging equipment of the third charging set is adjusted to be reduced to 0, then the charging current of the charging equipment of the first charging set is adjusted to be reduced to the second preset value, and finally the charging current of the charging equipment of the first charging set is adjusted to be reduced to 0.
Further, in this embodiment, when the charging device performs current regulation, the current regulation target value is a first preset value, a second preset value, and a third preset value, so that when calculating the adjustable current, the adjustable current can be obtained according to the first preset value, the second preset value, the third preset value, and the current. Further, in this embodiment, when the charging devices of the first charging set, the second charging set, and the third charging set adjust the charging current, the charging devices adjust the charging current sequentially in the order of the third charging set, the second charging set, and the first charging set. For example: when the charging current is adjusted, the charging current of the charging equipment in the third charging set is preferentially adjusted to the third preset value, then the charging current of the charging equipment in the second charging set is adjusted to the second preset value, then the charging current of the charging equipment in the first charging set is adjusted to the first preset value, then the charging current of the charging equipment in the third charging set is adjusted to the second preset value, and finally the charging current of the charging equipment in the third charging set is adjusted to the first preset value.
Further, the charging current of the charging device in the first charging set may be reduced to the second preset value, the third preset value, or 0, the charging current of the charging device in the second charging set may be reduced to the second preset value or 0, and the charging current of the charging device in the third charging set may be reduced to 0, so in this embodiment, the adjustable reduction current includes a first adjustable reduction current, a second adjustable reduction current, a third adjustable reduction current, a fourth adjustable reduction current, a fifth adjustable reduction current, and a sixth adjustable reduction current, the first adjustable reduction current is a sum of the first reference drop current, the first reference drop current is a difference between the charging current of the charging device in the first charging set and the second preset value, the second adjustable reduction current is a sum of the second reference drop current, and the second reference drop current is a sum of the charging current of the charging device in the second charging set and the third preset value The third adjustable reduction current is equal to the charging current of the charging device in the third set, the fourth adjustable reduction current is equal to the sum of the fourth adjustable reduction current, the fourth adjustable reduction current is equal to the difference between the charging current of the charging device in the first charging set and the third preset value, the fifth adjustable reduction current is equal to the sum of the fifth adjustable reduction current, the fifth adjustable reduction current is equal to the charging current of the charging device in the second charging set, the sixth adjustable reduction current is equal to the sum of the sixth adjustable reduction current, and the sixth adjustable reduction current is equal to the charging current of the charging device in the first charging set.
Further, the charging current of the charging device in the first charging set may be adjusted to the first preset value, the charging current of the charging device in the second charging set may be adjusted to the second preset value or the first preset value, the charging current of the charging device in the third charging set may be adjusted to the third preset value, the second preset value or the first preset value, so that the adjustable current includes a first adjustable current, a second adjustable current, a third adjustable current, a fourth adjustable current, a fifth adjustable current and a sixth adjustable current, the first adjustable current is a sum of first quasi-adjusted currents, the first quasi-adjusted current is a difference between the third preset value and the charging current of the charging device in the third charging set, and the second adjustable current is a sum of second quasi-adjusted currents, the second quasi-tune-up current is a difference between the second preset value and a charging current of a charging device within the second charging set, the third adjustable boost current is a sum of third quasi-adjustable boost currents, the third quasi-adjustable boost currents being a difference between the first preset value and charging currents of charging devices within the first charging set, the fourth adjustable boost current is a sum of fourth quasi-adjustable boost currents, the fourth quasi-adjustable boost currents being a difference between the second preset value and charging currents of charging devices within the third charging set, the fifth adjustable ramp-up current is a sum of fifth quasi-adjusted ramp-up currents, the fifth quasi-adjusted ramp-up currents being a difference between the first preset value and charging currents of charging devices within the second charging set, the sixth adjustable boost current is the sum of sixth quasi-adjustable boost currents, and the sixth quasi-adjustable boost current is the difference between the first preset value and the charging current of the charging device in the third charging set.
Further, after the total regulation and reduction current and the adjustable reduction current are calculated, it is necessary to further screen the charging device to be regulated from the first charging set, the second charging set and the third charging set according to the total regulation and reduction current and the adjustable reduction current and determine a current regulation and control target value of the charging device to be regulated.
further, the processing unit 30 is configured to, when the first adjustable buck current is not less than the total adjustable buck current, screen a part of charging devices from the first charging set as the charging devices to be regulated, and obtain that a current regulation target value of the charging devices to be regulated in the first charging set is the second preset value. It can be understood that if the first adjustable reduction current is not less than the total regulation current, it indicates that the regulation requirement can be met by partially reducing the charging devices in the first charging set to the second preset value, and therefore, part of the charging devices in the first charging set are screened as the charging devices to be regulated according to the sequence of charging access time. Further, the processing unit 30 is specifically configured to form a first turn-down sequence for the charging devices in the first charging set according to the sequence of charging access time, and screen a part of the charging devices in the first turn-down sequence as the charging devices to be regulated. Further, the processing unit 30 is specifically configured to sequentially accumulate the first reference drop currents of the charging devices in the first drop sequence to compare with the total drop current, and select the accumulated charging device corresponding to the first reference drop current as the to-be-regulated charging device when the sum of the first reference drop currents is not less than the total drop current. For example: the total regulating current is 20A, the charging devices in the first charging set are a charging device a, a charging device B and a charging device C, the charging access time of the charging device a is 8-point 1 minute, the charging current is 24A, the charging access time of the charging device B is 8-point 30 minute, the charging current is 31A, the charging access time of the charging device C is 9-point, and the charging current is 27A, then the first regulating sequence is the charging device a, the charging device B and the charging device C, the first adjustable reducing current is 8A +15A +11A =34A, the first adjustable reducing current is greater than the total regulating current, the processing unit 30 adds up the first regulating currents of the charging device a and the charging device B to be 8A +15A =23A, and is greater than the total regulating current 20A, then the processing unit 30 selects the charging devices corresponding to 8A and 15A from the first regulating sequence, namely, the charging equipment A and the charging equipment B are used as the charging equipment to be regulated and controlled; if the total regulating current is 33A, the processing unit 30 accumulates the first regulating currents of the charging device a and the charging device B to be 8A +15A =23A, and if the total regulating current is smaller than the total regulating current 33A, the processing unit 30 continues to accumulate the first regulating current of the charging device C to be 8A +15A +11A =34A, and the first regulating current is larger than the total regulating current 33A, and then the processing unit 30 selects the third regulating current which is already accumulated, that is, the charging devices corresponding to 8A, 15A, and 11A, that is, the charging device a, the charging device B, and the charging device C, from the first regulating sequence, as the charging device to be regulated, and the current regulating value of the charging device to be regulated is 16A.
Further, the processing unit 30 is specifically configured to, when the first adjustable buck current is smaller than the total buck current and the sum of the first adjustable buck current and the second adjustable buck current is not smaller than the total buck current, screen all charging devices from the first charging set as the charging devices to be regulated, and obtain that the current regulation target value is the second preset value, and screen part of the charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value is the third preset value. It can be understood that the first adjustable buck current is smaller than the total buck current, which indicates that the regulation of the charging current of the charging device in the first charging set to the second preset value still cannot meet the requirement of current regulation; further, the sum of the first adjustable buck current and the second adjustable buck current is not less than the total adjustable buck current, it means that the charging current of the charging devices in the first charging set is adjusted to the second preset value and then the selected charging devices in the second charging set are adjusted to the third preset value to meet the requirement of current regulation, the processing unit 30 selects all charging devices in the first charging set and part of charging devices in the second charging set as the charging devices to be regulated, and setting the current regulation target value of the charging equipment to be regulated in the first charging set as the second preset value, and setting the current regulation target value of the charging equipment to be regulated in the second charging set as the third preset value, so as to meet the current regulation requirement.
Further, the processing unit 30 is specifically configured to form a second turn-down sequence for the charging devices in the second charging set according to the sequence of charging access time, and screen a part of the charging devices in the second turn-down sequence as the charging devices to be regulated. Further, the processing unit 30 is specifically configured to sequentially accumulate the second reference drop currents of the charging devices in the second drop sequence to compare with a difference between the total drop current and the first adjustable drop current, and select the charging device corresponding to the accumulated second reference drop current as the to-be-regulated charging device when the sum of the second reference drop currents is not less than the difference between the total drop current and the first adjustable drop current. For example: the total regulating current is 35A, the charging devices in the first charging set are a charging device A, a charging device B and a charging device C, the first adjustable reducing current is 30A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 8 points and 1 minute, the charging current is 11A, the charging access time of the charging device E is 8 points and 30 minutes, the charging current is 13A, the charging access time of the charging device F is 9 points, the charging current is 15A, the second adjustable reducing current is 1A +3A +5A =9A, and 30A +9A =39A > 35A, namely, the sum of the first adjustable reducing current and the second adjustable reducing current is not less than the total regulating current, the second regulating sequence is the charging device D, the charging device E and the charging device F, the processing unit 30 adds up the second reference regulated down currents of the charging device D and the charging device E to 1A +3A =4A, the difference between the total regulated down current and the first adjustable down current is 35A-30A =5A, and 4A is less than 5A, so the processing unit 30 further adds up the second reference regulated down current of the charging device F to 1A +3A +5A =9A, and 9A is greater than 5A, and then the processing unit 30 further selects the second reference regulated down current which is already added up from the second regulated down sequence, that is, the charging devices corresponding to 1A, 3A, and 5A, that is, the charging device D, the charging device E, and the charging device F are used as the charging device to be regulated, and the current regulation value of the charging device to be regulated is 10A.
Further, when the sum of the first adjustable reduction current and the second adjustable reduction current is smaller than the total reduction current and the sum of the first adjustable reduction current, the second adjustable reduction current and the third adjustable reduction current is not smaller than the total reduction current, the processing unit 30 further screens all charging devices from the first charging set as the charging devices to be regulated, and obtains that the current regulation target value is the second preset value, screens all charging devices from the second charging set as the charging devices to be regulated, and obtains that the current regulation target value is the third preset value, and screens part of the charging devices from the third charging set as the charging devices to be regulated, and obtains that the current regulation target value is 0. It can be understood that the sum of the first adjustable buck current and the second adjustable buck current is smaller than the total buck current, which indicates that the current regulation and control requirements cannot be met by regulating the currents of all the charging devices in the first chargeable set to the second preset value and regulating the currents of the charging devices in the second chargeable set to the third preset value; further, if the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current is not less than the total buck current, it indicates that part of the charging devices in the third charging set is screened as the quasi-charging device on the basis of reducing the currents of all the charging devices in the first chargeable set to the second preset value and reducing the currents of the charging devices in the second chargeable set to the third preset value, and the current regulation value of the quasi-charging device in the third charging set is set to 0, so that the current regulation requirement can be met.
Further, the processing unit 30 is specifically configured to form a third turn-down sequence for the charging devices in the third charging set according to the sequence of charging access time, and screen a part of the charging devices in the third turn-down sequence as the charging devices to be regulated. Further, the processing unit 30 is specifically configured to sequentially accumulate the third reference drop currents of the charging devices in the third drop sequence, compare the third reference drop currents with a difference obtained by subtracting a sum of the first adjustable drop current and the second adjustable drop current from the total drop current, and select the charging device corresponding to the accumulated third reference drop current as the to-be-regulated charging device when the sum of the third reference drop currents is not less than the difference obtained by subtracting a sum of the first adjustable drop current and the second adjustable drop current from the total drop current. For example: the total regulated current is 55A, the charging device in the first charging set is charging device a, charging device B, charging device C, the first adjustable reduced current is 30A, the charging device in the second charging set is charging device D, charging device E, charging device F, the second adjustable reduced current is 8A, the charging device G, charging device H, and charging device I of the charging device in the third charging set, and the charging access time of the charging device G is 8: 1, the charging current is 9A, the charging access time of the charging device H is 8: 30, the charging current is 6A, the charging access time of the charging device I is 9, the charging current is 4A, the third adjustable reduced current is 9A +6A +4A =19A, 30A +8A +19=57A > 55A, that is, the first adjustable reduced current, The sum of the second adjustable buck current and the third adjustable buck current is not less than the total buck current, the third buck sequence is a charging device G, a charging device H, and a charging device I, the processing unit 30 sums up the third buck currents of the charging device G and the charging device H to 9A +6A =15A, and the difference between the total buck current and the first adjustable buck current and the second adjustable buck current is 55A-30A-8A =17A, 15A < 17A, so that the processing unit 30 further sums up the third buck currents of the charging device I to 9A +6A +4A =19A, 19A > 17A, and the processing unit 30 further selects the charging device corresponding to the third buck current, i.e., 9A, 6A, and 4A, from the third buck sequence, namely, the charging device G, the charging device H and the charging device I are used as the charging device to be regulated, and the current regulation value of the charging device to be regulated is 0.
Further, the processing unit 30 is further configured to, when the sum of the first adjustable buck current, the second adjustable buck current, and the third adjustable buck current is smaller than the total regulated buck current and the sum of the fourth adjustable buck current, the second adjustable buck current, and the third adjustable buck current is not smaller than the total regulated buck current, screen all charging devices from the first charging set as the charging devices to be regulated, and obtain that the current regulation target value of part of the charging devices in the first charging set is the third preset value, and the current regulation target value of another part of the charging devices is the second preset value, and screen all charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value is the third preset value, and screen all charging devices from the third charging set as the charging devices to be regulated, and the current regulation target value is 0. It can be understood that if the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total buck current, it indicates that the charging currents of all charging devices in the first charging set are regulated to be reduced to the second preset value, the charging currents of all charging devices in the second charging set are regulated to be reduced to be the third preset value, and the charging currents of all charging devices in the third charging set are regulated to be reduced to 0, which still cannot meet the requirement of current regulation; further, if the sum of the fourth adjustable reduction current, the second adjustable reduction current, and the third adjustable reduction current is not less than the total reduction current, it indicates that the charging currents of some charging devices in the first charging set are reduced to the third preset value, the charging currents of another part of charging devices are reduced to the second preset value, the charging currents of all charging devices in the second charging set are reduced to the third preset value, and the charging currents of all charging devices in the third charging set are reduced to 0, so that the current regulation and control requirements can be met.
Further, the processing unit 30 is specifically configured to calculate a first current difference value of the charging device in the first turn-down sequence, where the first current difference value is equal to a difference value between the second preset value and the third preset value, and the first current difference is sequentially accumulated to be compared with the difference obtained by subtracting the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current from the total adjustable buck current, and when the sum of the first current difference is not less than the sum of the total buck current minus the first adjustable buck current, the second adjustable buck current and the third adjustable buck current to obtain a difference, the current regulation value of the charging device corresponding to the accumulated first current difference is the third preset value, and obtaining the current regulation and control values of other charging equipment in the first charging set as the second preset value. For example: the total regulating current is 68A, the charging devices in the first charging set are a charging device a, a charging device B and a charging device C, the charging access time of the charging device a is 8-point 1 min, the charging current is 24A, the charging access time of the charging device B is 8-point 30 min, the charging current is 31A, the charging access time of the charging device C is 9-point, and the charging current is 27A, then the first regulating sequence is the charging device a, the charging device B and the charging device C, the first regulating current 24A-16A +31A-16A +27A-16A =34A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the second regulating current is 8A, and the charging device G and the charging device H of the charging device in the third charging set, and charging equipment I, wherein the third adjustable buck current is 19A, 34A +8A +19A is less than 68A, namely the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total adjustable buck current, and the fourth adjustable buck current is 24A-10A +31A-10A +27A-10A =52A, 52A +8A +19A =79A > 68A, namely the sum of the second adjustable buck current, the third adjustable buck current and the fourth adjustable buck current is greater than the total adjustable buck current. At this time, the processing unit 30 obtains that the first current difference value of the charging device in the first step-down sequence is 16A-10A =6A, and the difference value of the total step-down current and the first adjustable step-down current, the second adjustable step-down current, and the third adjustable step-down current is 68A-30A-8A-19A =11A, and 6A +6A =12A > 11A, so that the processing unit 30 further obtains that the current regulation value of the charging device corresponding to the accumulated first current difference value in the first step-down sequence, that is, the charging device a and the charging device B, is the third preset value, and obtains that the current regulation value of the other charging device in the first charging set, that is, the charging device C, is the second preset value.
Further, the processing unit 30 is further configured to, when the sum of the fourth adjustable buck current, the second adjustable buck current, and the third adjustable buck current is less than the total buck current and the sum of the fifth adjustable buck current, the fourth adjustable buck current, and the third adjustable buck current is not less than the total buck current, screen all charging devices from the first charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices in the first charging set is the third preset value, screen all charging devices from the second charging set as the charging devices to be regulated, obtain that current regulation target values of some charging devices in the second charging set are the third preset value, obtain that current regulation target values of some charging devices in another charging set are 0, and screen all charging devices from the third charging set as the charging devices to be regulated, and the current regulation target value is 0. It can be understood that if the sum of the fourth adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total buck current, it indicates that the charging currents of all charging devices in the first charging set are regulated to be reduced to the third preset value, the charging currents of all charging devices in the second charging set are regulated to be reduced to be the third preset value, and the charging currents of all charging devices in the third charging set are regulated to be reduced to 0, which is not a requirement of current regulation; further, the charging currents of all the charging devices in the first charging set are adjusted to be reduced to the third preset value, the charging currents of part of the charging devices in the second charging set are adjusted to be reduced to 0, the charging currents of the other part of the charging devices are adjusted to be reduced to the third preset value, and the charging currents of all the charging devices in the third charging set are adjusted to be reduced to 0, namely the current regulation requirement is met.
Further, the processing unit 30 is specifically configured to calculate a second current difference value of the charging device in the second turn-down sequence, where the second current difference value is equal to the third preset value, sequentially accumulate the first current difference values to be compared with a difference value obtained by subtracting a sum of the second adjustable turn-down current and the third adjustable turn-down current from the total turn-down current, and compare the difference value with a sum of the fourth adjustable turn-down current and the third adjustable turn-down current, and when the sum of the second current difference values is not less than a difference value obtained by subtracting a sum of the second adjustable turn-down current and the third adjustable turn-down current from the total turn-down current, obtain that a current regulation value of the charging device corresponding to the second current difference value is 0, and obtain that current regulation values of other charging devices in the second charging set are the third preset value. For example: the total regulating current is 90A, the charging devices in the first charging set are a charging device A, a charging device B and a charging device C, the fourth regulating current is 48A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 9: 1 min, the charging current is 11A, the charging access time of the charging device E is 9: 30 min, the charging current is 13A, the charging access time of the charging device F is 10: 15A, the second regulating sequence is the charging device D, the charging device E and the charging device F, the second regulating current is 11A-10A +13A-10A +15A-10A =9A, the charging device G and the charging device H of the charging device in the third charging set, and charging equipment I, wherein the third adjustable buck current is 19A, 48A +9A +19A =76A and is less than 90A, namely the sum of the fourth adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total adjustable buck current, and the fifth adjustable buck current is 11A +13A +15A =39A, 48A +39A +19A =106A and is greater than 90A, namely the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is greater than the total adjustable buck current. At this time, the processing unit 30 calculates a second current difference value of the charging device in the second turn-down sequence to be 10A-0=10A, and a difference value of the total turn-down current to the second adjustable turn-down current, the third adjustable turn-down current, and the fourth adjustable turn-down current to be 90A-48A-8A-19A =15A, 10A +10A =20A > 15A, so that the processing unit 30 further obtains current regulation values of the charging devices corresponding to the accumulated second current difference value in the second turn-down sequence, that is, the charging device D and the charging device E, to be 0, and obtains current regulation values of other charging devices in the second charging set, that is, the charging device F, to be the third preset value.
Further, the processing unit 30 is specifically configured to, when the sum of the fifth adjustable buck current, the fourth adjustable buck current, and the third adjustable buck current is less than the total buck current and the sum of the sixth adjustable buck current, the fifth adjustable buck current, and the third adjustable buck current is not less than the total buck current, screen all charging devices from the first charging set as the charging devices to be regulated, and obtain that a current regulation target value of the charging device in the first charging set is the third preset value, and current regulation target values of another part of the charging devices are 0, screen all charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value is 0, and screen all charging devices from the third charging set as the charging devices to be regulated, and the current regulation target value is 0. It can be understood that if the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is less than the total buck current, it indicates that the charging currents of all charging devices in the first charging set are regulated to be reduced to the second preset value, the charging currents of all charging devices in the second charging set are regulated to be reduced to 0, and the charging currents of all charging devices in the third charging set are regulated to be reduced to 0, which is still not a requirement for current regulation; further, the charging current of a part of the charging devices in the first charging set is reduced to 0, the charging current of another part of the charging devices is reduced to the third preset value, the charging current of all the charging devices in the second charging set is reduced to 0, and the charging current of all the charging devices in the third charging set is reduced to 0, which is a demand for current regulation.
Further, the processing unit 30 is specifically configured to calculate a third current difference value of the charging device in the third turn-down sequence, where the third current difference value is equal to the third preset value, sequentially accumulate the third current difference value to be compared with a difference value obtained by subtracting a sum of the third adjustable drop current, the fourth adjustable drop current, and the fifth adjustable drop current from the total turn-down current, and when the sum of the third current difference value is not less than a difference value obtained by subtracting a sum of the fifth adjustable drop current, the fourth adjustable drop current, and the third adjustable drop current from the total turn-down current, obtain that a current regulation value of the charging device corresponding to the third current difference value is 0, and obtain that current regulation values of other charging devices in the first charging set are the third preset value. For example: the total regulating current is 110A, the charging devices in the first charging set are a charging device A, a charging device B and a charging device C, the charging access time of the charging device A is 8-point 1 min, the charging current is 24A, the charging access time of the charging device B is 8-point 30 min, the charging current is 31A, the charging access time of the charging device C is 9-point, and the charging current is 23A, then the first regulating sequence is the charging device A, the charging device B and the charging device C, the fourth regulating current is 24A-10A +31A-10A +23A-10A =48A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the fifth regulating current is 41A, and the charging device G and the charging device H in the third charging set, and charging equipment I, wherein the third adjustable buck current is 19A, 48A +41A +19A =108A < 110A, namely the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is smaller than the total adjustable buck current, and the sixth adjustable buck current is 24A +31A +23A =78A, 78A +41A +19A =138A > 110A, namely the sum of the sixth adjustable buck current, the fifth adjustable buck current and the third adjustable buck current is larger than the total adjustable buck current. At this time, the processing unit 30 calculates a third current difference value of the charging device in the third turn-down sequence to be 10A-0=10A, and a difference value of the total turn-down current and the third adjustable turn-down current, the fourth adjustable turn-down current, and the fifth adjustable turn-down current to be 110A-19A-48A-41A =2A, where 10A is greater than 2A, so that the processing unit 30 further obtains the current regulation value of the charging device corresponding to the accumulated third current difference value in the first turn-down sequence, that is, the current regulation value of the charging device a, to be 0, and obtains the current regulation values of the other charging devices in the first charging set, that is, the charging device B and the charging device C, to be the third preset value.
Further, after the total regulated current and the adjustable regulated current are calculated, it is necessary to further screen a charging device to be regulated from the first charging set, the second charging set, and the third charging set according to the total regulated current and the adjustable regulated current, and determine a current regulation target value of the charging device to be regulated.
Further, the processing unit 30 is specifically configured to, when the first adjustable boost current is not less than the total boost current, screen a part of the charging devices in the third charging set as the charging devices to be regulated, and obtain that the current regulation target value of the charging devices to be regulated in the third charging set is the third preset value. It can be understood that the first adjustable boost current is not less than the total boost current, which indicates that the requirement of charging regulation and control can be met after only the charging devices in the third charging set are screened to boost the charging current, and therefore the processing unit is specifically configured to preferentially select the charging device with the charging current of 0 in the third charging set as the charging device to be regulated and controlled. It can be understood that, due to the charging regulation, the charging current of part of the charging devices is regulated to be reduced to 0 to meet the requirement of the charging regulation, so when the charging current is regulated, the charging device with the charging current of 0 is preferentially regulated to meet the charging requirement of the user. Further, after the charging device with the charging and charging current of 0 is screened, the processing unit screens a part of charging devices from the first charging set according to the sequence of charging access time as the charging device to be regulated, and obtains that the current regulation and control target value of the charging device to be regulated is the third preset value.
Further, the processing unit 30 is specifically configured to form a first lifting sequence according to the charging access time sequence, and screen a part of the charging devices from the first lifting sequence as the charging devices to be regulated. Further, the processing unit 30 is specifically configured to sequentially accumulate the first quasi lift currents of the charging devices in the first lift sequence to compare with the total lift current, and select, when the sum of the first quasi lift currents is greater than the total lift current, the charging device corresponding to the accumulated first quasi lift current except the last first quasi lift current as the charging device to be lifted. For example: the total boost current is 8A, the charging devices in the third charging set are a charging device a, a charging device B, and a charging device C, the charging access time of the charging device a is 8: 1 min, the charging current is 2A, the charging access time of the charging device B is 8: 30 min, the charging current is 9A, the charging access time of the charging device C is 9: 9, and the charging current is 5A, then the first boost sequence is the charging device a, the charging device B, and the charging device C, the first boost sequence is 10A-2A +10A-9A +10A-5A =14A, the first boost current is greater than the total boost current, the processing unit 30 sums the first boost current of the charging device a and the first quasi-boost current of the charging device B to be 8A +1A =9A, and is greater than the total boost current 8A, the accumulated first reference boost currents are 8A and 1A, if the last first reference boost current is 1A, the other accumulated first reference boost currents except the last first reference boost current are 8A, the charging device corresponding to 8A is the charging device a, and the processing unit 30 selects the charging device a as the charging device to be boosted.
Further, if the total adjusted current is smaller than the first adjusted current of any charging device in the third charging set, in this case, adjusting the charging current of any charging device in the third charging set to the third preset value will cause the real-time power load to exceed the safe current threshold, and therefore, the processing unit 30 does not select a charging device from the third charging set as the charging device to be adjusted.
Further, the processing unit 30 is specifically configured to, when the first adjustable boost current is smaller than the total boost current and the sum of the first adjustable boost current and the second adjustable boost current is not smaller than the total boost current, screen all charging devices in the third charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices to be regulated in the third charging set is the third preset value, screen a part of charging devices in the second charging set as the charging devices to be regulated, and obtain that a current regulation target value of the charging devices to be regulated in the second charging set is the second preset value. It can be understood that the first adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all the charging devices in the third charging set are all boosted to the third preset value, surplus current still exists, and therefore, it is necessary to continuously screen a part of the charging devices as charging devices to be regulated to perform charging regulation; further, when the sum of the first adjustable boost current and the second adjustable boost current is not less than the total boost current, it indicates that the requirement of charging regulation and control can be met by screening part of the charging devices from the second charging set, so the processing unit 30 further forms a second boost sequence according to the sequence of charging access time, and screens part of the charging devices from the second boost sequence as the charging devices to be regulated and controlled.
Further, the processing unit 30 is specifically configured to sequentially accumulate the second quasi lift currents of the charging devices in the second lift sequence to compare with a difference between the total lift current and the first adjustable lift current, and select, as the charging device to be lifted, a charging device corresponding to the other accumulated second quasi lift currents except for the last second quasi lift current when the sum of the second quasi lift currents is greater than the difference between the total lift current and the first adjustable lift current. For example: the total lift current is 17A, the charging devices in the third charging set are a charging device a, a charging device B and a charging device C, the first adjustable lift current is 10A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 8 points and 1 minute, the charging current is 11A, the charging access time of the charging device E is 8 points and 30 minutes, the charging current is 13A, the charging access time of the charging device F is 9 points, the charging current is 15A, the second adjustable lift current is 16A-11A +16A-13A +16A-15A =9A, 10A +9A =19A > 17A, namely the sum of the first adjustable lift current and the second adjustable lift current is not less than the total lift current, the second lift sequence is that the charging device D, the charging device B and the charging device C are connected in series, and the second lift sequence is that the charging device D, the charging device B and the charging device C are connected in series Charging equipment E and charging equipment F, the processing unit 30 adds up the second accurate regulated current of charging equipment D with charging equipment E to 5A +3A =8A, the difference between the total regulated current and the first adjustable regulated current is 17A-10A =7A, 8A > 7A, is greater than the total regulated current, the second accurate regulated current that has accumulated is 5A and 3A, the last second accurate regulated current is 3A, then it is 5A to get rid of other second accurate regulated currents that have accumulated except the last second accurate regulated current, and the charging equipment corresponding to 5A is charging equipment D, then the processing unit 30 selects charging equipment D as the charging equipment that is scheduled to be regulated.
Further, if the difference between the total adjusted current and the first adjustable current is smaller than the second adjusted current of any charging device in the second charging set, in this case, adjusting the charging current of any charging device in the second charging set to the second preset value will cause the real-time power load to exceed the safe current threshold, and therefore, the processing unit 30 does not select the charging device from the second charging set as the charging device to be adjusted.
Further, the processing unit 30 is specifically configured to, when the sum of the first adjustable boost current and the second adjustable boost current is smaller than the total boost current and the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices to be regulated in the third charging set is the third preset value, screen all charging devices from the second charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices to be regulated in the second charging set is the second preset value, and screen a part of the charging devices from the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the first charging set is the first preset value. It can be understood that the sum of the first adjustable boost current and the second adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all the charging devices in the third charging set are all boosted to the third preset value, and when the charging currents of all the charging devices in the second charging set are all boosted to the second preset value, surplus currents still exist, so that part of the charging devices needs to be screened continuously as the charging devices to be regulated to perform charging regulation; further, when the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not less than the total boost current, it indicates that the requirement of charging regulation and control can be met by further screening part of the charging devices from the first charging set to perform charging regulation and control, so the processing unit 30 further forms a third boost sequence according to the sequence of charging access time, and screens part of the charging devices from the third boost sequence as the charging devices to be regulated and controlled.
Further, the processing unit 30 is specifically configured to sequentially accumulate the third quasi lift-up currents of the charging devices in the third lift-up sequence to be compared with a difference obtained by subtracting a sum of the first adjustable lift-up current and the second adjustable lift-up current from the total lift-up current, and select, as the charging device to be lifted up, a charging device corresponding to the accumulated third quasi lift-up current except for the last third quasi lift-up current when the sum of the third quasi lift-up currents is greater than the difference obtained by subtracting the sum of the first adjustable lift-up current and the second adjustable lift-up current from the total lift-up current. For example: the total regulated current is 26A, the charging devices in the third charging set are a charging device A, a charging device B and a charging device C, the first adjustable regulated current is 10A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the second adjustable regulated current is 9A, the charging devices in the first charging set are a charging device G, a charging device H and a charging device I, the charging access time of the charging device G is 8 points and 1 minute, the charging current is 30A, the charging access time of the charging device H is 8 points and 30 minutes, the charging current is 27A, the charging access time of the charging device I is 9 points, and the charging current is 25A, then the third adjustable regulated current is 32A-30A +32A-27A +32A-25A =14A, 10A +9A +14A =33A > 26A, that is, the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not less than the total boost current, the third boost sequence is charging device G, charging device H, and charging device I, the processing unit 30 adds the third quasi-boost currents of the charging device G and the charging device H to 2A +6A =8A, the difference between the total boost current and the first adjustable boost current and the second adjustable boost current is 26A-10A-9A =7A, 8A > 7A, which is greater than the total boost current, the added third quasi-boost currents are 2A and 6A, and the last third quasi-boost current is 6A, then the added third quasi-boost current except the last third quasi-boost current is 2A, and the charging device corresponding to 2A is charging device G, the processing unit 30 selects the charging device G as the charging device to be adjusted.
further, if a difference obtained by subtracting a sum of the first adjustable boost current and the second adjustable boost current from the total boost current is smaller than the third adjusted boost current of any charging device in the first charging set, in this case, if the charging current of any charging device in the first charging set is increased to the first preset value, the real-time power load exceeds the safe current threshold, and therefore, the processing unit 30 does not select the charging device from the first charging set as the charging device to be adjusted.
Further, the processing unit 30 is specifically configured to, when the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current and the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices in the third charging set as the charging devices to be regulated, and obtain that the current regulation target values of a part of the charging devices to be regulated in the third charging set are the third preset value, and the current regulation target values of another part of the charging devices to be regulated are the second preset value, and screen all charging devices in the second charging set as the charging devices to be regulated, and obtain that the current regulation target values of the charging devices to be regulated in the second charging set are the second preset value, and screening all the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value. It can be understood that the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all charging devices in the third charging set are all boosted to the third preset value, the charging currents of all charging devices in the second charging set are all boosted to the second preset value, and when the charging currents of all charging devices in the first charging set are all boosted to the first preset value, surplus currents still exist, so that it is necessary to continuously adjust current regulation target values of some charging devices to perform charging regulation; further, when the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not less than the total boost current, it is described that, on the basis described above, the charging current of a part of the charging devices to be regulated in the third charging set is further adjusted to the second preset value, and the charging current of another part of the charging devices to be regulated is adjusted to the third preset value, so as to meet the requirement of charging regulation, so the processing unit 30 is specifically configured to calculate a fourth current difference value of the charging devices in the first boost sequence, where the fourth current difference value is equal to a difference value between the second preset value and the third preset value, and sequentially accumulate the fourth current difference value to compare with a difference value obtained by subtracting the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current from the total boost current, and when the sum of the fourth current difference values is greater than the difference obtained by subtracting the sum of the first adjustable boost current, the second adjustable boost current and the third adjustable boost current from the total boost current, obtaining that the current regulation value of the charging device corresponding to the fourth current difference value except the last fourth current difference value is the second preset value, and obtaining that the current regulation value of other charging devices in the third charging set is the third preset value.
For example: the total boost current is 45A, the charging devices in the third charging set are a charging device A, a charging device B and a charging device C, the charging access time of the charging device A is 8: 1 min, the charging current is 2A, the charging access time of the charging device B is 8: 30 min, the charging current is 9A, the charging access time of the charging device C is 9: 5A, the first adjustable boost current is 14A, the first boost sequence is the charging device A, the charging device B and the charging device C, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the second adjustable boost current is 9A, the charging device G, the charging device H and the charging device I of the charging device in the first charging set, the third adjustable boost current is 14A, 14A +9A +14A =37A and is less than 45A, i.e. the sum of the first adjustable ramp-up current, the second adjustable ramp-up current and the third adjustable ramp-up current is smaller than the total adjusted ramp-up current, and the fourth adjustable ramp-up current is 16A-2A +16A-9A +16A-5A =32A, 32A +14A +9A =55A > 45A, i.e. the sum of the second adjustable ramp-up current, the third adjustable ramp-up current and the fourth adjustable ramp-up current is larger than the total adjusted ramp-up current. At this time, the processing unit 30 finds that the fourth current difference value of the charging device in the first boost sequence is 16A-10A =6A, the difference between the total regulated current and the first, second, and third adjustable boost currents is 45A-14A-9A-14A =8A, 6A +6A =12A > 8A, the accumulated fourth quasi-regulated boost currents are 6A and 6A, and the last fourth quasi-regulated boost current is 6A, the other accumulated fourth trimming rising current except the last fourth trimming rising current is 6A, the charging equipment corresponding to the charging equipment 6A is charging equipment A, the current regulation value of the charging equipment A is obtained to be the second preset value, and the current regulation and control values of the charging equipment B and the charging equipment C are the third preset value.
Further, if the difference obtained by subtracting the sum of the first adjustable boost current, the second adjustable boost current and the third adjustable boost current from the total boost current is smaller than the fourth current difference in the third charging set, in this case, adjusting the charging current of any one of the charging devices in the third charging set to the second preset value will cause the real-time electrical load to exceed the safe current threshold, therefore, the processing unit 30 does not select the charging device with the current regulation value of the second preset value from the third charging set as the charging device to be regulated, that is, the processing unit 30 selects all charging devices from the third charging set as the charging devices to be regulated, and the current regulation and control values of all the charging devices in the third charging set are the third preset value.
Further, the processing unit 30 is specifically configured to, when the sum of the fourth adjustable boost current, the third adjustable boost current, and the second adjustable boost current is smaller than the total boost current and the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging devices to be regulated, obtain that the current regulation target value of the charging device to be regulated in the third charging set is the second preset value, screen all charging devices from the second charging set as the charging devices to be regulated, obtain that the current regulation target values of a part of the charging devices to be regulated in the second charging set are the first preset value, and obtain that the current regulation target values of another part of the charging devices to be regulated are the second preset value, and screening all the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value. It can be understood that the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all charging devices in the third charging set are all boosted to the second preset value, the charging currents of all charging devices in the second charging set are all boosted to the second preset value, and when the charging currents of all charging devices in the first charging set are all boosted to the first preset value, surplus current still exists, so that it is necessary to continuously adjust current regulation target values of some charging devices to perform charging regulation; further, when the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is not less than the total boost current, it is described that, on the basis, the charging current of a part of the charging devices to be regulated in the second charging set is further adjusted to the first preset value, and the charging current of another part of the charging devices to be regulated is adjusted to the second preset value, so as to meet the requirement of charging regulation, so that the processing unit 30 is specifically configured to subtract the second reference boost current from the fifth reference boost current of the charging devices in the second boost sequence to obtain a fifth current difference, and sequentially accumulate the fifth current difference to be compared with the sum of the total boost current minus the second adjustable boost current, the third adjustable boost current, and the fourth adjustable boost current to obtain a difference, and when the sum of the fifth current difference values is greater than the sum of the total adjusted current minus the second adjustable current, the third adjustable current and the fourth adjustable current, obtaining a difference value, wherein the current adjustment value of the charging device corresponding to the fifth current difference value except the last fifth current difference value is the first preset value, and obtaining a current adjustment value of other charging devices in the second charging set as the second preset value.
For example: the total regulated current is 80A, the charging devices in the third charging set are a charging device a, a charging device B and a charging device C, the fourth adjustable regulated current is 32A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 8 points and 1 minute, the charging current is 11A, the charging access time of the charging device E is 8 points and 30 minutes, the charging current is 13A, the charging access time of the charging device F is 9 points, the charging current is 15A, the second regulated sequence is the charging device D, the charging device E and the charging device F, the second adjustable regulated current is 16A-11A +16A-13A +16A-15A =9A, the fifth adjustable regulated current is 32A-11A +32A-13A +32A-15A =57A, the third adjustable boost current is 14A, and 32A +9A +14A =55A < 80A, that is, the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is less than the total boost current, and 57A +33A +14A =104A > 80A, that is, the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is greater than the total boost current. At this time, the processing unit 30 finds that the fifth current difference value of the charging device in the second boost sequence is 32A-16A =16A, the difference between the total regulated current and the second, third, and fourth adjustable boosted currents is 80A-32A-14A-9A =25A, 16A +16A =32A > 25A, the accumulated fifth pseudo-regulated currents are 16A and 16A, and the last fifth pseudo-regulated current is 16A, the accumulated fifth trimming up current excluding the last fifth trimming up current is 16A, the charging device corresponding to 16A is the charging device D, the processing unit 30 obtains that the current regulation value of the charging device D is the first preset value, and the current regulation values of the charging equipment E and the charging equipment F are the second preset value.
Further, if the difference obtained by subtracting the sum of the second adjustable ramp-up current, the third adjustable ramp-up current and the fourth adjustable ramp-up current from the total ramp-up current is smaller than a fifth current difference in the second charging set, adjusting the charging current of any one of the charging devices in the second charging set to the first preset value will cause the real-time electrical load to exceed the safe current threshold, therefore, the processing unit 30 does not select the charging device with the current regulation value of the first preset value from the second charging set as the charging device to be regulated, that is, the processing unit 30 selects all charging devices from the second charging set as the charging devices to be regulated, and the current regulation and control values of all the charging devices in the second charging set are the second preset value.
Further, the processing unit 30 is specifically configured to, when the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is smaller than the total boost current and the sum of the sixth adjustable boost current, the fifth adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices in the third charging set as the charging devices to be regulated, and obtain that the current regulation target values of a part of the charging devices to be regulated in the third charging set are the first preset value, and obtain that the current regulation target values of another part of the charging devices to be regulated are the second preset value, and screen all charging devices in the second charging set as the charging devices to be regulated, and obtain that the current regulation target values of the charging devices to be regulated in the second charging set are the first preset value, and screening all the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value. It can be understood that the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is smaller than the total boost current, which means that when the charging currents of all the charging devices in the third charging set are all boosted to the second preset value, the charging currents of all the charging devices in the second charging set are all boosted to the first preset value, and when the charging currents of all the charging devices in the first charging set are all boosted to the first preset value, surplus current still exists, so that it is necessary to continuously adjust the current regulation target values of some charging devices to perform charging regulation; further, the sum of the sixth adjustable boost current, the fifth adjustable boost current and the fourth adjustable boost current is not less than the total boost current, which indicates that the charging current of a part of the charging devices to be regulated in the third charging set is further adjusted to the first preset value on the basis, and the charging current of another part of the charging devices to be regulated is adjusted to the second preset value, so as to meet the requirement of charging regulation, therefore, the processing unit 30 further calculates a sixth current difference value of the charging devices in the first boost sequence, where the sixth current difference value is equal to the difference value between the first preset value and the second preset value, and sequentially accumulates the sixth current difference value to be compared with the difference value obtained by subtracting the sum of the fifth adjustable boost current, the fourth adjustable boost current and the third adjustable boost current from the total boost current, and when the sum of the sixth current difference values is greater than the difference obtained by subtracting the sum of the fifth adjustable boost current, the fourth adjustable boost current and the third adjustable boost current from the total boost current, obtaining that the current regulation value of the charging device corresponding to the sixth current difference value except the last sixth current difference value is the first preset value, and obtaining that the current regulation value of other charging devices in the third charging set is the second preset value.
For example: the total boost current is 130A, the charging devices in the third charging set are a charging device A, a charging device B and a charging device C, the charging access time of the charging device A is 8: 1 min, the charging current is 2A, the charging access time of the charging device B is 8: 30 min, the charging current is 9A, the charging access time of the charging device C is 9: 5A, the fourth boost-adjustable current is 32A, the first boost sequence is the charging device A, the charging device B and the charging device C, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the fifth boost-adjustable current is 57A, the charging device G, the charging device H and the charging device I of the charging device in the first charging set, the third boost-adjustable current is 14A, 32A +57A +14A =103A and less than 130A, that is, the sum of the fifth adjustable ramp-up current, the fourth adjustable ramp-up current and the third adjustable ramp-up current is less than the total adjusted ramp-up current, and the sixth adjustable ramp-up current is 32A-2A +32A-9A +32A-5A =80A, 80A +57A +14A =151A > 130A, that is, the sum of the sixth adjustable ramp-up current, the fifth adjustable ramp-up current and the third adjustable ramp-up current is greater than the total adjusted ramp-up current. At this time, the processing unit 30 finds that the sixth current difference value of the charging device in the first boost sequence is 32A-16A =16A, the difference between the total regulated current and the fifth, fourth, and third adjustable boost currents is 130A-57A-32A-14A =27A, 16A +16A =32A > 27A, the accumulated sixth pseudo-regulated boost currents are 16A and 16A, and the last sixth pseudo-regulated boost current is 16A, the other accumulated sixth trimming up current except the last sixth trimming up current is 16A, the charging device corresponding to 16A is the charging device a, the processing unit 30 obtains that the current regulation value of the charging device a is the first preset value, and the current regulation and control values of the charging equipment B and the charging equipment C are the second preset value.
Further, if the difference obtained by subtracting the sum of the fifth adjustable ramp-up current, the fourth adjustable ramp-up current and the third adjustable ramp-up current from the total ramp-up current is smaller than a sixth current difference in the first charging set, adjusting the charging current of any one of the charging devices in the first charging set to the first preset value will cause the real-time electrical load to exceed the safe current threshold, therefore, the processing unit 30 does not select the charging device with the current regulation value of the first preset value from the third charging set as the charging device to be regulated, that is, the processing unit 30 selects all charging devices from the third charging set as the charging devices to be regulated, and the current regulation and control values of all the charging devices in the third charging set are the second preset value.
Further, the processing unit 30 screens the charging device to be regulated from the first charging set, the second charging set, and the third charging set, obtains a current regulation target value of the charging device to be regulated, and then sends the charging device to be regulated and the corresponding current regulation target value to the regulating unit 40, and the regulating unit 40 regulates the charging current of the charging device to be regulated to the corresponding current regulation target value according to the current regulation target value, so as to ensure that the power grid is in a safe state and the charging device is charged efficiently.
According to the charging regulation and control system, the current regulation and control target value is set to be any one of the first preset value, the second preset value, the third preset value and 0, so that a plurality of adjustable currents of the current charging equipment can be rapidly and accurately calculated according to the current of the charging equipment, an adjustable current which is most matched with the total regulation and control current is selected from the plurality of adjustable currents according to the total regulation and control current, the charging equipment to be regulated and controlled can be rapidly screened from the first set, the second set and the third set according to the adjustable current, the regulated and control current of the charging equipment to be regulated and controlled can be accurately calculated according to the adjustable current, batch regulation and control can be carried out on the charging equipment to be regulated and controlled, the regulation and control accuracy is guaranteed, the regulation and control efficiency is guaranteed, and the requirement of a community current safety threshold can be met only through one-time charging regulation and control, the regulation and control process is very accurate and rapid. In addition, when the charging current is regulated and reduced, the charging equipment in the charging set with higher charging current is sequentially selected as the charging equipment to be regulated and controlled, and the charging current is sequentially regulated and reduced by one current level within the range of the total regulating and controlling current to calculate the adjustable current, so that the charging equipment in the charging set with lower charging current cannot be regulated and reduced under the condition of lower total regulating and controlling current, and the charging current of the charging equipment in the charging set with higher charging current cannot be directly regulated and reduced to 0 under the condition of higher total regulating and controlling current, so that all the charging equipment can maintain relatively higher charging efficiency, and the intellectualization of charging regulation and control is realized.
Referring to fig. 2, a second embodiment of the present invention provides a charging method, which is applied to any embodiment or arrangement and combination of embodiments of the charging regulation and control system, and includes the following steps:
Step S210: the method comprises the steps of obtaining a real-time electric load, wherein the real-time electric load comprises residential electricity consumption current and charging current of charging equipment.
In the embodiment, in the community, in order to facilitate charging of residents, the charging equipment is arranged near the community parking space so that users can conveniently use the charging equipment for charging after parking vehicles into the parking space. Furthermore, the charging equipment is connected to a charging regulation and control system to receive a regulation and control instruction of the charging regulation and control system to perform charging regulation and control.
Further, after the charging device is connected to the charging regulation and control system, before the charging regulation and control is performed, a real-time power load of a community needs to be acquired and used, where the real-time power load includes a residential electricity consumption current and a charging current of the charging device, and specifically, in this embodiment, the real-time power load is a sum of the residential electricity consumption current and the charging current of the charging device.
Further, since the power consumption current of the residential electric line and the charging current of the charging device are in a changing state along with the power consumption of the residents and the charging of the vehicle, the acquired real-time power load is also in a changing state, and accidents such as tripping and the like may be caused as the power consumption current of the residents or the charging current of the charging device is increased and exceeds the upper limit of the circuit line of the community. For example: the acquired residential electricity utilization current is 1000A, the charging current of the charging device is 500A, and then the real-time power load is 1000A +500= 1500A.
Step S220: and comparing the real-time electric load with a safe current threshold value to obtain a comparison result.
Further, after the real-time power load is obtained, the real-time power load and a pre-stored safe current threshold value need to be compared, and a comparison result is obtained. Further, the comparison result includes that the real-time electrical load is not less than the safe current threshold, or that the real-time electrical load is less than the safe current threshold.
It can be understood that because there is rated current in the community power line, exceed when too big in order to prevent community power consumption electric current rated current sets up factor of safety, according to rated current with factor of safety reachs safe current threshold value will charge when real-time electric load exceeds safe current threshold value and regulate and control in order to prevent the real-time electric load of community reaches or surpasses thereby circumstances such as tripping operation outage of causing of rated current. Further, in this embodiment, the safe current threshold is a product of the rated current of the community power grid and a safety factor. For example: the rated current of the community power grid is 2000A, the safety factor is 0.9, and then the safety current threshold value is 2000A x 0.9= 1800A.
Further, since the safe current threshold is smaller than the rated current, if the real-time power load of the community is smaller than the safe current threshold, it indicates that the total load of the current community is low, and at this time, the charging current of the charging device can be increased to improve the charging efficiency; if the real-time power load of the community is greater than the safe current threshold, the total load of the current community is high, and charging regulation and control are required to be performed in time to reduce the charging current of the charging equipment, so that the electricity consumption of residents is preferentially guaranteed on the premise that the charging current does not exceed the safe current threshold. It is therefore desirable to compare the real-time electrical load and the safe current threshold to determine how to make charging regulations to maintain proper operation of the community grid.
Step S230: and calculating a total regulation and control current and at least one adjustable current of the charging equipment according to the comparison result, screening the charging equipment to be regulated and controlled according to the total regulation and control current and the at least one adjustable current, and obtaining a current regulation and control target value of the charging equipment to be regulated and controlled, wherein the current regulation and control target value comprises at least one of a first preset value, a second preset value, a third preset value and 0.
Further, the total regulated current is a total current that the charging device connected to the power grid needs to be regulated down when the real-time power load is not less than the safety current threshold, or a total current that the charging device connected to the power grid needs to be regulated up when the real-time power load is less than the safety current threshold.
Further, in order to keep the community power load stable, the charging current of the charging device needs to be adjusted down or increased according to the real-time power load condition of the community power grid, and therefore the total adjusting current needs to be calculated according to the comparison result. Further, in this embodiment, the total regulated current includes a total regulated down current or a total regulated up current. The total regulating current is the sum of charging currents required to be regulated and reduced by all charging equipment in the power grid when the real-time power load is greater than the safe current threshold; and the total regulating current is the sum of charging currents required to be regulated and increased by all charging equipment in the power grid when the real-time power load is smaller than the safe current threshold. For example: when the real-time power load is 20A higher than the safe current threshold, the total regulating current is a total regulating and reducing current, and the total regulating and reducing current is 20A; and when the real-time power load is 10A lower than the safe current, the total regulating current is a total regulating current, and the total regulating current is 10A.
Further, in order to determine how to perform charging regulation and control, an adjustable current of the charging device needs to be further calculated, where the adjustable current is a sum of charging currents required to be regulated and reduced by all the charging devices in the power grid, and the charging current is regulated and reduced to at least one of the second preset value, the third preset value, and 0, or the charging current is regulated and increased to at least one of the third preset value, the second preset value, and the first preset value, and is a sum of charging currents required to be regulated and increased. It can be understood that, since the charging current of the charging device needs to be adjusted or controlled according to the real-time power load, the adjustable current includes an adjustable decreasing current and an adjustable increasing current, the adjustable decreasing current and the total adjusting current are correspondingly set as a basis for adjusting and decreasing the charging current of the charging device, and the adjustable decreasing current is a sum of charging currents that are required to be adjusted and decreased by all the charging devices in the power grid to decrease the charging current to at least one of the second preset value, the third preset value and 0; the adjustable boost current is the sum of the charging currents which are required to be boosted by all the charging equipment in the power grid to the third preset value, the second preset value and any one of the first preset values. Further, the adjustable boost current and the total boost current are correspondingly set to serve as a basis for boosting the charging current of the charging equipment. For example, currently, the power grid includes 1 charging device a, the charging current of the charging device a is 31A, in this embodiment, there are three current levels, which are 32A, 16A and 10A respectively, then the adjustable up current is 1A, and the adjustable down current is 15A, 21A or 31A.
Further, in order to ensure the safety of charging regulation, when charging current is regulated and reduced, it is required to ensure that the adjustable reduction current is not less than the total regulation and reduction current, that is, the sum of the charging currents regulated and reduced by all the charging devices is not less than the total regulation and reduction current, and when charging current is regulated and increased, it is required to ensure that the adjustable increase current is not greater than the total regulation and increase current, that is, the sum of the charging currents regulated and increased by all the charging devices is not greater than the total regulation and increase current, so as to ensure that the current of the regulated and controlled charging devices is not greater than the safety current threshold.
Further, when the received comparison result indicates that the real-time power load is not less than the safe current threshold, it indicates that the current community load is high, the charging current of the charging device needs to be reduced, and at this time, the total reduction current needs to be calculated, and meanwhile, the adjustable reduction current of the charging device needs to be calculated in order to determine how to perform charging regulation, so that the charging device to be regulated is screened according to the total reduction current and the adjustable reduction current, and the current regulation target value of the charging device to be regulated is obtained.
Further, when the received comparison result indicates that the real-time power load is smaller than the safe current threshold, it indicates that the current community load is low, the charging current of the charging device needs to be increased, at this time, the total increase current needs to be calculated, and meanwhile, the adjustable increase current of the charging device needs to be calculated in order to determine how to perform charging regulation, so that the charging device to be regulated is screened according to the total increase current and the adjustable increase current, and the current regulation target value of the charging device to be regulated is obtained.
Further, in this embodiment, the charging devices are further divided into at least one charging set according to the charging current of the charging device, and the charging device is selected from the charging set as a charging device to be regulated according to the total regulation current and the adjustable current, which can be understood as a charging device that needs to regulate the charging current or regulate the charging current. Further, in this embodiment, the charging set includes a first charging set, a second charging set and a third charging set, and the dividing further divides the charging device with the charging current not greater than the first preset value and greater than the second preset value into the first charging set, divides the charging device with the charging current not greater than the second preset value and greater than the third preset value into the second charging set, and divides the charging device with the charging current not greater than the third preset value into the third charging set. In this embodiment, the first preset value is 32A, the second preset value is 16A, and the third preset value is 10A. It can be understood that dividing the charging devices into different charging sets through charging current differences facilitates fast calculation of the level of the adjustable current and comparison of the adjustable current with the total regulation current, thereby fast screening out the charging devices to be regulated and calculating the current regulation target values of the charging devices to be regulated. For example: the power grid comprises a charging device a, a charging device b and a charging device c, wherein the charging current of the charging device a is 30A, the charging current of the charging device b is 28A, the charging current of the charging device c is 25A, and the charging device a, the charging device b and the charging device c are all divided into a first charging set as the three current values of 30A, 28A and 25A are all larger than 16A and smaller than 32A; the power grid comprises a charging device d, a charging device e and a charging device f, the charging current of the charging device d is 22A, the charging current of the charging device e is 20A, the charging current of the charging device c is 15A, the two current values of 22A and 20A are larger than 16A and smaller than 32A, so that the charging device d and the charging device e are classified into a first charging set, and the charging device f is classified into a second charging set because 15A is larger than 10A and smaller than 16A; the charging system comprises a charging device A, a charging device B, a charging device C, a charging device D and a charging device E, wherein the charging current of the charging device A is 20A, the charging current of the charging device B is 25A, the charging current of the charging device C is 15A, the charging current of the charging device D is 9A, and the charging current of the charging device E is 8A, then the processing unit 30 divides the charging device A and the charging device B into the first charging set, divides the charging device C into the second charging set, and divides the charging device D and the charging device E into the third charging set. In summary, since the current value of the charging device in the power grid is between 0 and 32A, when the charging sets are divided, the charging device in the power grid can be divided into at least one charging set.
Further, in this embodiment, when the charging device performs current regulation and reduction, the current regulation and control target value is a first preset value, a second preset value, a third preset value or 0, so that when the adjustable reduction current is calculated, the adjustable reduction current can be obtained according to a difference between the current and the first preset value, the second preset value, the third preset value or 0. Further, in this embodiment, when the charging devices of the first charging set, the second charging set, and the third charging set adjust the charging current, the charging devices adjust the charging current in order of the first charging set, the second charging set, and the third charging set. For example: when the charging current is adjusted to be reduced, the charging current of the charging equipment of the first charging set is preferentially adjusted to be reduced to the first preset value, then the charging current of the charging equipment of the second charging set is adjusted to be reduced to the second preset value, then the charging current of the charging equipment of the third charging set is adjusted to be reduced to 0, then the charging current of the charging equipment of the first charging set is adjusted to be reduced to the second preset value, and finally the charging current of the charging equipment of the first charging set is adjusted to be reduced to 0.
further, in this embodiment, when the charging device performs current regulation, the current regulation target value is a first preset value, a second preset value, and a third preset value, so that when calculating the adjustable current, the adjustable current can be obtained according to the first preset value, the second preset value, the third preset value, and the current. Further, in this embodiment, when the charging devices of the first charging set, the second charging set, and the third charging set adjust the charging current, the charging devices adjust the charging current sequentially in the order of the third charging set, the second charging set, and the first charging set. For example: when the charging current is adjusted, the charging current of the charging equipment in the third charging set is preferentially adjusted to the third preset value, then the charging current of the charging equipment in the second charging set is adjusted to the second preset value, then the charging current of the charging equipment in the first charging set is adjusted to the first preset value, then the charging current of the charging equipment in the third charging set is adjusted to the second preset value, and finally the charging current of the charging equipment in the third charging set is adjusted to the first preset value.
further, the charging current of the charging device in the first charging set may be reduced to the second preset value, the third preset value, or 0, the charging current of the charging device in the second charging set may be reduced to the second preset value or 0, and the charging current of the charging device in the third charging set may be reduced to 0, so in this embodiment, the adjustable reduction current includes a first adjustable reduction current, a second adjustable reduction current, a third adjustable reduction current, a fourth adjustable reduction current, a fifth adjustable reduction current, and a sixth adjustable reduction current, the first adjustable reduction current is a sum of the first reference drop current, the first reference drop current is a difference between the charging current of the charging device in the first charging set and the second preset value, the second adjustable reduction current is a sum of the second reference drop current, and the second reference drop current is a sum of the charging current of the charging device in the second charging set and the third preset value The third adjustable reduction current is equal to the charging current of the charging device in the third set, the fourth adjustable reduction current is equal to the sum of the fourth adjustable reduction current, the fourth adjustable reduction current is equal to the difference between the charging current of the charging device in the first charging set and the third preset value, the fifth adjustable reduction current is equal to the sum of the fifth adjustable reduction current, the fifth adjustable reduction current is equal to the charging current of the charging device in the second charging set, the sixth adjustable reduction current is equal to the sum of the sixth adjustable reduction current, and the sixth adjustable reduction current is equal to the charging current of the charging device in the first charging set.
further, the charging current of the charging device in the first charging set may be adjusted to the first preset value, the charging current of the charging device in the second charging set may be adjusted to the second preset value or the first preset value, the charging current of the charging device in the third charging set may be adjusted to the third preset value, the second preset value or the first preset value, so that the adjustable current includes a first adjustable current, a second adjustable current, a third adjustable current, a fourth adjustable current, a fifth adjustable current and a sixth adjustable current, the first adjustable current is a sum of first quasi-adjusted currents, the first quasi-adjusted current is a difference between the third preset value and the charging current of the charging device in the third charging set, and the second adjustable current is a sum of second quasi-adjusted currents, the second quasi-tune-up current is a difference between the second preset value and a charging current of a charging device within the second charging set, the third adjustable boost current is a sum of third quasi-adjustable boost currents, the third quasi-adjustable boost currents being a difference between the first preset value and charging currents of charging devices within the first charging set, the fourth adjustable boost current is a sum of fourth quasi-adjustable boost currents, the fourth quasi-adjustable boost currents being a difference between the second preset value and charging currents of charging devices within the third charging set, the fifth adjustable ramp-up current is a sum of fifth quasi-adjusted ramp-up currents, the fifth quasi-adjusted ramp-up currents being a difference between the first preset value and charging currents of charging devices within the second charging set, the sixth adjustable boost current is the sum of sixth quasi-adjustable boost currents, and the sixth quasi-adjustable boost current is the difference between the first preset value and the charging current of the charging device in the third charging set.
Further, after the total regulation and reduction current and the adjustable reduction current are calculated, it is necessary to further screen the charging device to be regulated from the first charging set, the second charging set and the third charging set according to the total regulation and reduction current and the adjustable reduction current and determine a current regulation and control target value of the charging device to be regulated.
Further, when the first adjustable buck current is not less than the total adjustable buck current, screening part of the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the second preset value. It can be understood that if the first adjustable reduction current is not less than the total regulation current, it indicates that the regulation requirement can be met by partially reducing the charging devices in the first charging set to the second preset value, and therefore, part of the charging devices in the first charging set are screened as the charging devices to be regulated according to the sequence of charging access time. Further, the method is specifically configured to form a first turn-down sequence for the charging devices in the first charging set according to the sequence of charging access time, and screen a part of the charging devices from the first turn-down sequence as the charging devices to be regulated. Further, the method is specifically configured to sequentially accumulate the first reference drop currents of the charging devices in the first drop sequence to compare with the total drop current, and select the accumulated charging device corresponding to the first reference drop current as the charging device to be regulated when the sum of the first reference drop currents is not less than the total drop current. For example: the total regulating and reducing current is 20A, the charging devices in the first charging set are a charging device a, a charging device B and a charging device C, the charging access time of the charging device a is 8-point 1 minute, the charging current is 24A, the charging access time of the charging device B is 8-point 30 minutes, the charging current is 31A, the charging access time of the charging device C is 9-point, and the charging current is 27A, then the first regulating and reducing sequence is the charging device a, the charging device B and the charging device C, the first adjustable and reducing current is 8A +15A +11A =34A, the first adjustable and reducing current is greater than the total regulating and reducing current, the first quasi regulating and reducing currents of the charging device a and the charging device B are accumulated to be 8A +15A =23A and greater than the total regulating and reducing current 20A, then the charging devices corresponding to 8A and 15A are selected from the first regulating and reducing sequence, namely, the charging equipment A and the charging equipment B are used as the charging equipment to be regulated and controlled; if the total regulating current is 33A, accumulating the first regulating currents of the charging device a and the charging device B to be 8A +15A =23A, and if the total regulating current is smaller than the total regulating current 33A, continuing to accumulate the first regulating currents of the charging device C to be 8A +15A +11A =34A, and if the total regulating current is larger than the total regulating current 33A, selecting the third regulating current which is accumulated, namely, the charging devices corresponding to 8A, 15A and 11A, from the first regulating sequence, namely, the charging device a, the charging device B and the charging device C, as the charging device to be regulated, and the current regulating value of the charging device to be regulated is 16A.
Further, the method is specifically configured to, when the first adjustable buck current is smaller than the total buck current and the sum of the first adjustable buck current and the second adjustable buck current is not smaller than the total buck current, screen all charging devices from the first charging set as the charging devices to be regulated, and obtain that the current regulation target value is the second preset value, and screen part of the charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value is the third preset value. It can be understood that the first adjustable buck current is smaller than the total buck current, which indicates that the regulation of the charging current of the charging device in the first charging set to the second preset value still cannot meet the requirement of current regulation; further, if the sum of the first adjustable buck current and the second adjustable buck current is not less than the total buck current, it indicates that the charging current of the charging device in the first charging set is regulated to the second preset value, and then a selected part of the charging devices in the second charging set is regulated to the third preset value, which can meet the current regulation requirement, so that all the charging devices in the first charging set and a part of the charging devices in the second charging set are selected as the charging devices to be regulated, the current regulation target value of the charging device to be regulated in the first charging set is set to the second preset value, and the current regulation target value of the charging device to be regulated in the second charging set is set to the third preset value, which can meet the current regulation requirement.
Further, the method is specifically configured to form a second turn-down sequence for the charging devices in the second charging set according to the sequence of charging access time, and screen a part of the charging devices from the second turn-down sequence as the charging devices to be regulated. Further, the method is specifically configured to sequentially accumulate the second reference drop currents of the charging devices in the second drop sequence to compare with a difference between the total drop current and the first adjustable drop current, and select the charging device corresponding to the accumulated second reference drop current as the to-be-regulated charging device when the sum of the second reference drop currents is not less than the difference between the total drop current and the first adjustable drop current. For example: the total regulating current is 35A, the charging devices in the first charging set are a charging device A, a charging device B and a charging device C, the first adjustable reducing current is 30A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 8 points and 1 minute, the charging current is 11A, the charging access time of the charging device E is 8 points and 30 minutes, the charging current is 13A, the charging access time of the charging device F is 9 points, the charging current is 15A, the second adjustable reducing current is 1A +3A +5A =9A, and 30A +9A =39A > 35A, namely, the sum of the first adjustable reducing current and the second adjustable reducing current is not less than the total regulating current, the second regulating sequence is the charging device D, the charging device E and the charging device F, accumulating the second reference drop currents of the charging device D and the charging device E to 1A +3A =4A, wherein the difference between the total drop current and the first adjustable drop current is 35A-30A =5A, and 4A is less than 5A, so that the second reference drop current of the charging device F is further accumulated to 1A +3A +5A =9A, and 9A > 5A, and then the accumulated second reference drop current, that is, the charging devices corresponding to 1A, 3A, and 5A, that is, the charging device D, the charging device E, and the charging device F are further selected from the second drop sequence as the charging device to be regulated, and the current regulation value of the charging device to be regulated is 10A.
Further, when the sum of the first adjustable reduction current and the second adjustable reduction current is smaller than the total reduction current and the sum of the first adjustable reduction current, the second adjustable reduction current and the third adjustable reduction current is not smaller than the total reduction current, all charging devices are screened from the first charging set as the charging devices to be regulated, the current regulation target value is obtained as the second preset value, all charging devices are screened from the second charging set as the charging devices to be regulated, the current regulation target value is obtained as the third preset value, part of the charging devices are screened from the third charging set as the charging devices to be regulated, and the current regulation target value is obtained as 0. It can be understood that the sum of the first adjustable buck current and the second adjustable buck current is smaller than the total buck current, which indicates that the current regulation and control requirements cannot be met by regulating the currents of all the charging devices in the first chargeable set to the second preset value and regulating the currents of the charging devices in the second chargeable set to the third preset value; further, if the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current is not less than the total buck current, it indicates that part of the charging devices in the third charging set is screened as the quasi-charging device on the basis of reducing the currents of all the charging devices in the first chargeable set to the second preset value and reducing the currents of the charging devices in the second chargeable set to the third preset value, and the current regulation value of the quasi-charging device in the third charging set is set to 0, so that the current regulation requirement can be met.
Further, the method is specifically configured to form a third turn-down sequence for the charging devices in the third charging set according to the sequence of charging access time, and screen a part of the charging devices from the third turn-down sequence as the charging devices to be regulated. Further, the method is specifically configured to sequentially accumulate the third reference drop currents of the charging devices in the third drop sequence, compare the third reference drop currents with a difference value obtained by subtracting a sum of the first adjustable drop current and the second adjustable drop current from the total drop current, and select the charging device corresponding to the accumulated third reference drop current as the to-be-regulated charging device when the sum of the third reference drop currents is not less than the difference value obtained by subtracting a sum of the first adjustable drop current and the second adjustable drop current from the total drop current. For example: the total regulated current is 55A, the charging device in the first charging set is charging device a, charging device B, charging device C, the first adjustable reduced current is 30A, the charging device in the second charging set is charging device D, charging device E, charging device F, the second adjustable reduced current is 8A, the charging device G, charging device H, and charging device I of the charging device in the third charging set, and the charging access time of the charging device G is 8: 1, the charging current is 9A, the charging access time of the charging device H is 8: 30, the charging current is 6A, the charging access time of the charging device I is 9, the charging current is 4A, the third adjustable reduced current is 9A +6A +4A =19A, 30A +8A +19=57A > 55A, that is, the first adjustable reduced current, The sum of the second adjustable buck current and the third adjustable buck current is not less than the total buck current, the third buck sequence is charging equipment G, charging equipment H, and charging equipment I, and the third buck current of the charging equipment G and the charging equipment H is accumulated to 9A +6A =15A, the difference between the total buck current and the first adjustable buck current and the second adjustable buck current is 55A-30A-8A =17A, 15A is less than 17A, so that the processing unit 30 further accumulates the third buck current of the charging equipment I to 9A +6A +4A =19A, 19A is greater than 17A, and then further selects the charging equipment corresponding to the accumulated third buck current, that is, 9A, 6A, and 4A, that is, the charging equipment G, the charging equipment H, and the charging equipment I, as the charging equipment to be regulated, and the current regulation value of the charging equipment to be regulated is 0.
Further, when the sum of the first adjustable reduction current, the second adjustable reduction current and the third adjustable reduction current is smaller than the total regulation reduction current and the sum of the fourth adjustable reduction current, the second adjustable reduction current and the third adjustable reduction current is not smaller than the total regulation reduction current, screening all charging devices from the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of part of the charging devices in the first charging set is the third preset value, and the current regulation target value of the other part of the charging devices is the second preset value, screening all the charging devices from the second charging set as the charging devices to be regulated, and obtaining that the current regulation target value is the third preset value, and screening all the charging devices from the third charging set as the charging devices to be regulated, and the current regulation target value is 0. It can be understood that if the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total buck current, it indicates that the charging currents of all charging devices in the first charging set are regulated to be reduced to the second preset value, the charging currents of all charging devices in the second charging set are regulated to be reduced to be the third preset value, and the charging currents of all charging devices in the third charging set are regulated to be reduced to 0, which still cannot meet the requirement of current regulation; further, if the sum of the fourth adjustable reduction current, the second adjustable reduction current, and the third adjustable reduction current is not less than the total reduction current, it indicates that the charging currents of some charging devices in the first charging set are reduced to the third preset value, the charging currents of another part of charging devices are reduced to the second preset value, the charging currents of all charging devices in the second charging set are reduced to the third preset value, and the charging currents of all charging devices in the third charging set are reduced to 0, so that the current regulation and control requirements can be met.
Further, a first current difference value of the charging device in the first regulating sequence is calculated, the first current difference value is equal to a difference value between the second preset value and the third preset value, the first current difference value is sequentially accumulated to be compared with a difference value obtained by subtracting a sum of the first adjustable reducing current, the second adjustable reducing current and the third adjustable reducing current from the total regulating current, when the sum of the first current difference value is not less than the sum of the total regulating current minus the first adjustable reducing current, the second adjustable reducing current and the third adjustable reducing current, a current regulation value of the charging device corresponding to the accumulated first current difference value is obtained as the third preset value, and current regulation values of other charging devices in the first charging set are obtained as the second preset value. For example: the total regulating current is 68A, the charging devices in the first charging set are a charging device a, a charging device B and a charging device C, the charging access time of the charging device a is 8-point 1 min, the charging current is 24A, the charging access time of the charging device B is 8-point 30 min, the charging current is 31A, the charging access time of the charging device C is 9-point, and the charging current is 27A, then the first regulating sequence is the charging device a, the charging device B and the charging device C, the first regulating current is 24A-16A +31A-16A +27A-16A =34A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the second regulating current is 8A, and the charging device G and the charging device H of the charging device in the third charging set, and charging equipment I, wherein the third adjustable buck current is 19A, 34A +8A +19A is less than 68A, namely the sum of the first adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total adjustable buck current, and the fourth adjustable buck current is 24A-10A +31A-10A +27A-10A =52A, 52A +8A +19A =79A > 68A, namely the sum of the second adjustable buck current, the third adjustable buck current and the fourth adjustable buck current is greater than the total adjustable buck current. At this time, it is obtained that the first current difference value of the charging device in the first turn-down sequence is 16A-10A =6A, the difference value between the total turn-down current and the first adjustable turn-down current, the second adjustable turn-down current, and the third adjustable turn-down current is 68A-30A-8A-19A =11A, and 6A +6A =12A > 11A, so that the current regulation values of the charging device corresponding to the accumulated first current difference value in the first turn-down sequence, that is, the charging device a and the charging device B, are further obtained as the third preset value, and the current regulation values of the other charging devices in the first charge set, that is, the charging device C, are obtained as the second preset value.
Further, when the sum of the fourth adjustable buck current, the second adjustable buck current and the third adjustable buck current is smaller than the total buck current and the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is not smaller than the total buck current, all charging devices are screened from the first charging set as the charging devices to be regulated, and a current regulation target value of the charging devices in the first charging set is obtained as the third preset value, and all charging devices are screened from the second charging set as the charging devices to be regulated, and a current regulation target value of a part of the charging devices in the second charging set is obtained as the third preset value, and a current regulation target value of another part of the charging devices is 0, and all charging devices are screened from the third charging set as the charging devices to be regulated, and the current regulation target value is 0. It can be understood that if the sum of the fourth adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total buck current, it indicates that the charging currents of all charging devices in the first charging set are regulated to be reduced to the third preset value, the charging currents of all charging devices in the second charging set are regulated to be reduced to be the third preset value, and the charging currents of all charging devices in the third charging set are regulated to be reduced to 0, which is not a requirement of current regulation; further, the charging currents of all the charging devices in the first charging set are adjusted to be reduced to the third preset value, the charging currents of part of the charging devices in the second charging set are adjusted to be reduced to 0, the charging currents of the other part of the charging devices are adjusted to be reduced to the third preset value, and the charging currents of all the charging devices in the third charging set are adjusted to be reduced to 0, namely the current regulation requirement is met.
Further, a second current difference value of the charging device in the second regulating sequence is calculated, the second current difference value is equal to the third preset value, the first current difference value is sequentially accumulated to be compared with a difference value obtained by subtracting the sum of the second adjustable reducing current and the third adjustable reducing current from the total regulating current, and when the sum of the second current difference value is not less than the difference value obtained by subtracting the sum of the second adjustable reducing current and the third adjustable reducing current from the total regulating current, the current regulation value of the charging device corresponding to the second current difference value is 0, and the current regulation values of other charging devices in the second charging set are the third preset value. For example: the total regulating current is 90A, the charging devices in the first charging set are a charging device A, a charging device B and a charging device C, the fourth regulating current is 48A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 9: 1 min, the charging current is 11A, the charging access time of the charging device E is 9: 30 min, the charging current is 13A, the charging access time of the charging device F is 10: 15A, the second regulating sequence is the charging device D, the charging device E and the charging device F, the second regulating current is 11A-10A +13A-10A +15A-10A =9A, the charging device G and the charging device H of the charging device in the third charging set, and charging equipment I, wherein the third adjustable buck current is 19A, 48A +9A +19A =76A and is less than 90A, namely the sum of the fourth adjustable buck current, the second adjustable buck current and the third adjustable buck current is less than the total adjustable buck current, and the fifth adjustable buck current is 11A +13A +15A =39A, 48A +39A +19A =106A and is greater than 90A, namely the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is greater than the total adjustable buck current. At this time, the second current difference of the charging device in the second turn-down sequence is calculated to be 10A-0=10A, the difference between the total turn-down current and the second adjustable turn-down current, the third adjustable turn-down current and the fourth adjustable turn-down current is calculated to be 90A-48A-8A-19A =15A, and 10A +10A =20A > 15A, so that the current regulation values of the charging devices corresponding to the accumulated second current difference in the second turn-down sequence, that is, the charging device D and the charging device E, are further obtained to be 0, and the current regulation values of the other charging devices in the second charging set, that is, the charging device F, are obtained to be the third preset value.
Further, when the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is less than the total buck current and the sum of the sixth adjustable buck current, the fifth adjustable buck current and the third adjustable buck current is not less than the total buck current, screening all charging devices from the first charging set as the charging devices to be regulated, and obtaining that the current regulation target values of the charging devices in the first charging set are the third preset value, and the current regulation target values of the other part of the charging devices are 0, and screening all charging devices from the second charging set as the charging devices to be regulated, and obtaining that the current regulation target value is 0, screening all charging devices from the third charging set as the charging devices to be regulated, and obtaining that the current regulation target value is 0. It can be understood that if the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is less than the total buck current, it indicates that the charging currents of all charging devices in the first charging set are regulated to be reduced to the second preset value, the charging currents of all charging devices in the second charging set are regulated to be reduced to 0, and the charging currents of all charging devices in the third charging set are regulated to be reduced to 0, which is still not a requirement for current regulation; further, the charging current of a part of the charging devices in the first charging set is reduced to 0, the charging current of another part of the charging devices is reduced to the third preset value, the charging current of all the charging devices in the second charging set is reduced to 0, and the charging current of all the charging devices in the third charging set is reduced to 0, which is a demand for current regulation.
Further, a third current difference value of the charging device in the third regulating-decreasing sequence is calculated, the third current difference value is equal to the third preset value, the third current difference value is sequentially accumulated to be compared with a difference value obtained by subtracting a sum of the third adjustable decreasing current, the fourth adjustable decreasing current and the fifth adjustable decreasing current from the total regulating-decreasing current, when the sum of the third current difference value is not less than a difference value obtained by subtracting a sum of the fifth adjustable decreasing current, the fourth adjustable decreasing current and the third adjustable decreasing current from the total regulating-decreasing current, a current regulation value of the charging device corresponding to the third current difference value is obtained to be 0, and current regulation values of other charging devices in the first charging set are obtained to be the third preset value. For example: the total regulating current is 110A, the charging devices in the first charging set are a charging device A, a charging device B and a charging device C, the charging access time of the charging device A is 8-point 1 min, the charging current is 24A, the charging access time of the charging device B is 8-point 30 min, the charging current is 31A, the charging access time of the charging device C is 9-point, and the charging current is 23A, then the first regulating sequence is the charging device A, the charging device B and the charging device C, the fourth regulating current is 24A-10A +31A-10A +23A-10A =48A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the fifth regulating current is 41A, and the charging device G and the charging device H in the third charging set, and charging equipment I, wherein the third adjustable buck current is 19A, 48A +41A +19A =108A < 110A, namely the sum of the fifth adjustable buck current, the fourth adjustable buck current and the third adjustable buck current is smaller than the total adjustable buck current, and the sixth adjustable buck current is 24A +31A +23A =78A, 78A +41A +19A =138A > 110A, namely the sum of the sixth adjustable buck current, the fifth adjustable buck current and the third adjustable buck current is larger than the total adjustable buck current. At this time, a third current difference value of the charging device in the third turn-down sequence is calculated to be 10A-0=10A, a difference value between the total turn-down current and the third adjustable turn-down current, the fourth adjustable turn-down current and the fifth adjustable turn-down current is calculated to be 110A-19A-48A-41A =2A, and 10A is greater than 2A, so that the current regulation value of the charging device corresponding to the accumulated third current difference value in the first turn-down sequence, that is, the current regulation value of the charging device a, is further obtained to be 0, and the current regulation values of the other charging devices in the first charging set, that is, the charging device B and the charging device C, are obtained to be the third preset value.
further, after the total regulated current and the adjustable regulated current are calculated, it is necessary to further screen a charging device to be regulated from the first charging set, the second charging set, and the third charging set according to the total regulated current and the adjustable regulated current, and determine a current regulation target value of the charging device to be regulated.
Further, when the first adjustable boost current is not less than the total boost current, screening a part of charging devices in the third charging set as the charging devices to be regulated, and obtaining that a current regulation target value of the charging devices to be regulated in the third charging set is the third preset value. It can be understood that the first adjustable boost current is not less than the total boost current, which indicates that the requirement of charging regulation and control can be met after only the charging devices in the third charging set are screened to boost the charging current, and therefore the processing unit is specifically configured to preferentially select the charging device with the charging current of 0 in the third charging set as the charging device to be regulated and controlled. It can be understood that, due to the charging regulation, the charging current of part of the charging devices is regulated to be reduced to 0 to meet the requirement of the charging regulation, so when the charging current is regulated, the charging device with the charging current of 0 is preferentially regulated to meet the charging requirement of the user. Further, after the charging device with the charging and charging current of 0 is screened, the processing unit screens a part of charging devices from the first charging set according to the sequence of charging access time as the charging device to be regulated, and obtains that the current regulation and control target value of the charging device to be regulated is the third preset value.
And further, the method is specifically used for forming a first lifting sequence according to the sequence of charging access time, and screening part of charging equipment in the first lifting sequence as the charging equipment to be regulated. Further, the method is specifically configured to sequentially accumulate the first quasi-lift currents of the charging devices in the first lift sequence to compare with the total lift current, and select, when the sum of the first quasi-lift currents is greater than the total lift current, the charging device corresponding to the other accumulated first quasi-lift currents except the last first quasi-lift current as the charging device to be lifted. For example: the total boost current is 8A, the charging devices in the third charging set are a charging device a, a charging device B and a charging device C, the charging access time of the charging device a is 8-point and 1-minute, the charging current is 2A, the charging access time of the charging device B is 8-point and 30-minute, the charging current is 9A, the charging access time of the charging device C is 9-point, and the charging current is 5A, then the first boost sequence is the charging device a, the charging device B and the charging device C, the first boost sequence is 10A-2A +10A-9A +10A-5A =14A, the first boost current is greater than the total boost current, the first boost current of the charging device a and the first quasi-boost current of the charging device B are summed to be 8A +1A =9A and greater than the total boost current 8A, the accumulated first quasi-regulated current is 8A and 1A, the last first quasi-regulated current is 1A, the other accumulated first quasi-regulated currents except the last first quasi-regulated current are 8A, the charging device corresponding to 8A is the charging device A, and the charging device A is selected as the charging device to be regulated.
Further, if the total boost current is smaller than the first quasi-boost current of any charging device in the third charging set, in this case, boosting the charging current of any charging device in the third charging set to the third preset value will cause the real-time power load to exceed the safety current threshold, so that the charging device is not selected from the third charging set as the charging device to be regulated.
Further, when the first adjustable boost current is smaller than the total adjustable boost current and the sum of the first adjustable boost current and the second adjustable boost current is not smaller than the total adjustable boost current, all charging devices are screened from the third charging set as the charging devices to be regulated, the current regulation target value of the charging devices to be regulated in the third charging set is obtained as the third preset value, part of the charging devices are screened from the second charging set as the charging devices to be regulated, and the current regulation target value of the charging devices to be regulated in the second charging set is obtained as the second preset value. It can be understood that the first adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all the charging devices in the third charging set are all boosted to the third preset value, surplus current still exists, and therefore, it is necessary to continuously screen a part of the charging devices as charging devices to be regulated to perform charging regulation; further, when the sum of the first adjustable boost current and the second adjustable boost current is not less than the total boost current, it indicates that the requirement of charging regulation and control can be met by screening part of the charging devices from the second charging set, so a second boost sequence is further formed according to the sequence of charging access time, and part of the charging devices are screened from the second boost sequence as the charging devices to be regulated and controlled.
Further, the method is specifically configured to sequentially accumulate the second quasi lift currents of the charging devices in the second lift sequence to compare with a difference between the total lift current and the first adjustable lift current, and select, when the sum of the second quasi lift currents is greater than the difference between the total lift current and the first adjustable lift current, the charging device corresponding to the other accumulated second quasi lift currents except the last second quasi lift current as the charging device to be lifted. For example: the total lift current is 17A, the charging devices in the third charging set are a charging device a, a charging device B and a charging device C, the first adjustable lift current is 10A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 8 points and 1 minute, the charging current is 11A, the charging access time of the charging device E is 8 points and 30 minutes, the charging current is 13A, the charging access time of the charging device F is 9 points, the charging current is 15A, the second adjustable lift current is 16A-11A +16A-13A +16A-15A =9A, 10A +9A =19A > 17A, namely the sum of the first adjustable lift current and the second adjustable lift current is not less than the total lift current, the second lift sequence is that the charging device D, the charging device B and the charging device C are connected in series, and the second lift sequence is that the charging device D, the charging device B and the charging device C are connected in series Charging equipment E and charging equipment F, accumulating the second accurate regulating and rising currents of the charging equipment D and the charging equipment E to be 5A +3A =8A, the difference value of the total regulating and rising current and the first adjustable rising current is 17A-10A =7A, 8A is larger than 7A and is larger than the total regulating and rising current, the accumulated second accurate regulating and rising currents are 5A and 3A, the last second accurate regulating and rising current is 3A, other accumulated second accurate regulating and rising currents except the last second accurate regulating and rising current are removed to be 5A, the charging equipment corresponding to 5A is the charging equipment D, and the charging equipment D is selected to be used as the charging equipment to be regulated and raised.
Further, if the difference between the total adjusted current and the first adjustable current is smaller than the second adjusted current of any charging device in the second charging set, in this case, adjusting the charging current of any charging device in the second charging set to the second preset value will cause the real-time power load to exceed the safe current threshold, and therefore, the processing unit 30 does not select the charging device from the second charging set as the charging device to be adjusted.
Further, the method is specifically configured to, when the sum of the first adjustable boost current and the second adjustable boost current is smaller than the total boost current and the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices to be regulated in the third charging set is the third preset value, screen all charging devices from the second charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices to be regulated in the second charging set is the second preset value, and screen a part of the charging devices from the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the first charging set is the first preset value. It can be understood that the sum of the first adjustable boost current and the second adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all the charging devices in the third charging set are all boosted to the third preset value, and when the charging currents of all the charging devices in the second charging set are all boosted to the second preset value, surplus currents still exist, so that part of the charging devices needs to be screened continuously as the charging devices to be regulated to perform charging regulation; further, when the sum of the first adjustable boost current, the second adjustable boost current and the third adjustable boost current is not less than the total boost current, it indicates that the requirement of charging regulation and control can be met by further screening part of the charging devices from the first charging set to perform charging regulation and control, so that a third boost sequence is further formed according to the sequence of charging access time, and part of the charging devices is screened from the third boost sequence to be used as the charging devices to be regulated and controlled.
Further, the method is specifically configured to sequentially accumulate the third quasi lift currents of the charging devices in the third lift sequence to be compared with a difference obtained by subtracting a sum of the first adjustable lift current and the second adjustable lift current from the total lift current, and select, as the charging device to be lifted, a charging device corresponding to the accumulated third quasi lift currents except for a last third quasi lift current when the sum of the third quasi lift currents is greater than the difference obtained by subtracting the sum of the first adjustable lift current and the second adjustable lift current from the total lift current. For example: the total regulated current is 26A, the charging devices in the third charging set are a charging device A, a charging device B and a charging device C, the first adjustable regulated current is 10A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the second adjustable regulated current is 9A, the charging devices in the first charging set are a charging device G, a charging device H and a charging device I, the charging access time of the charging device G is 8 points and 1 minute, the charging current is 30A, the charging access time of the charging device H is 8 points and 30 minutes, the charging current is 27A, the charging access time of the charging device I is 9 points, and the charging current is 25A, then the third adjustable regulated current is 32A-30A +32A-27A +32A-25A =14A, 10A +9A +14A =33A > 26A, that is, the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not less than the total boost current, the third boost sequence is charging device G, charging device H, and charging device I, the processing unit 30 adds the third quasi-boost currents of the charging device G and the charging device H to 2A +6A =8A, the difference between the total boost current and the first adjustable boost current and the second adjustable boost current is 26A-10A-9A =7A, 8A > 7A, which is greater than the total boost current, the added third quasi-boost currents are 2A and 6A, and the last third quasi-boost current is 6A, then the added third quasi-boost current except the last third quasi-boost current is 2A, and the charging device corresponding to 2A is charging device G, selecting the charging equipment G as the charging equipment to be adjusted and raised.
Further, if a difference obtained by subtracting a sum of the first adjustable boost current and the second adjustable boost current from the total boost current is smaller than the third adjusted boost current of any one of the charging devices in the first charging set, in this case, the real-time power load exceeds the safety current threshold by adjusting the charging current of any one of the charging devices in the first charging set to the first preset value, so that the charging device is not selected from the first charging set as the charging device to be adjusted.
Further, the method is specifically configured to, when the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current and the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging devices to be regulated, and obtain that the current regulation target value of a part of the charging devices to be regulated in the third charging set is the third preset value, and the current regulation target value of another part of the charging devices to be regulated is the second preset value, and screen all charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value of the charging devices to be regulated in the second charging set is the second preset value, and screening all the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value. It can be understood that the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all charging devices in the third charging set are all boosted to the third preset value, the charging currents of all charging devices in the second charging set are all boosted to the second preset value, and when the charging currents of all charging devices in the first charging set are all boosted to the first preset value, surplus currents still exist, so that it is necessary to continuously adjust current regulation target values of some charging devices to perform charging regulation; further, when the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not less than the total boost current, it is described that, on the basis described above, the charging current of a part of the charging devices to be regulated in the third charging set is further adjusted to the second preset value, and the charging current of another part of the charging devices to be regulated is adjusted to the third preset value, so as to meet the requirement of charging regulation, and therefore, a fourth current difference value of the charging devices in the first boost sequence is calculated, the fourth current difference value is equal to the difference value between the second preset value and the third preset value, and the fourth current difference value is sequentially accumulated to be compared with a difference value obtained by subtracting the sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current from the total boost current, and when the sum of the fourth current difference values is greater than the difference obtained by subtracting the sum of the first adjustable boost current, the second adjustable boost current and the third adjustable boost current from the total boost current, obtaining that the current regulation value of the charging device corresponding to the fourth current difference value except the last fourth current difference value is the second preset value, and obtaining that the current regulation value of other charging devices in the third charging set is the third preset value.
For example: the total boost current is 45A, the charging devices in the third charging set are a charging device A, a charging device B and a charging device C, the charging access time of the charging device A is 8: 1 min, the charging current is 2A, the charging access time of the charging device B is 8: 30 min, the charging current is 9A, the charging access time of the charging device C is 9: 5A, the first adjustable boost current is 14A, the first boost sequence is the charging device A, the charging device B and the charging device C, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the second adjustable boost current is 9A, the charging device G, the charging device H and the charging device I of the charging device in the first charging set, the third adjustable boost current is 14A, 14A +9A +14A =37A and is less than 45A, i.e. the sum of the first adjustable ramp-up current, the second adjustable ramp-up current and the third adjustable ramp-up current is smaller than the total adjusted ramp-up current, and the fourth adjustable ramp-up current is 16A-2A +16A-9A +16A-5A =32A, 32A +14A +9A =55A > 45A, i.e. the sum of the second adjustable ramp-up current, the third adjustable ramp-up current and the fourth adjustable ramp-up current is larger than the total adjusted ramp-up current. At this time, it is obtained that a fourth current difference value of the charging device in the first boost sequence is 16A-10A =6A, a difference value of the total boost current and the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is 45A-14A-9A-14A =8A, 6A +6A =12A > 8A, the accumulated fourth quasi-boost currents are 6A and 6A, and the last fourth quasi-boost current is 6A, then the other accumulated fourth quasi-boost currents except the last fourth quasi-boost current are removed and are 6A, the charging device corresponding to 6A is the charging device a, and it is obtained that the current regulation value of the charging device a is the second preset value, and the current regulation values of the charging device B and the charging device C are the third preset value.
Further, if a difference obtained by subtracting a sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current from the total boost current is smaller than a fourth current difference in the third charging set, in this case, when the charging current of any one of the charging devices in the third charging set is increased to the second preset value, the real-time power load exceeds the safe current threshold, and therefore, a charging device with a current regulation value of the second preset value is not selected from the third charging set as a charging device to be regulated, that is, all the charging devices in the third charging set are selected as the charging device to be regulated, and the current regulation values of all the charging devices in the third charging set are the third preset value.
Further, the method is specifically configured to, when the sum of the fourth adjustable boost current, the third adjustable boost current, and the second adjustable boost current is smaller than the total boost current and the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging devices to be regulated, obtain that a current regulation target value of the charging devices to be regulated in the third charging set is the second preset value, screen all charging devices from the second charging set as the charging devices to be regulated, obtain that current regulation target values of a part of the charging devices to be regulated in the second charging set are the first preset value, and obtain that current regulation target values of another part of the charging devices to be regulated are the second preset value, and screening all the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value. It can be understood that the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current, which indicates that when the charging currents of all charging devices in the third charging set are all boosted to the second preset value, the charging currents of all charging devices in the second charging set are all boosted to the second preset value, and when the charging currents of all charging devices in the first charging set are all boosted to the first preset value, surplus current still exists, so that it is necessary to continuously adjust current regulation target values of some charging devices to perform charging regulation; further, when the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is not less than the total boost current, it is described that, on the basis, the charging current of a part of the charging devices to be regulated in the second charging set is further adjusted to the first preset value, and the charging current of another part of the charging devices to be regulated is adjusted to the second preset value, so as to meet the requirement of charging regulation, and therefore, the method is specifically configured to subtract the second adjustable boost current from the fifth adjusted boost current of the charging devices in the second boost sequence to obtain a fifth current difference, sequentially accumulate the fifth current difference to be subtracted from the total boost current by the second adjustable boost current, and compare the third adjustable boost current with the fourth adjustable boost current to obtain a difference, and when the sum of the fifth current difference is greater than the sum of the total adjusted boost current by the second adjustable boost current, And obtaining a difference value between the third adjustable boost current and the fourth adjustable boost current, and obtaining that the current regulation value of the charging device corresponding to the fifth current difference value except the last fifth current difference value is the first preset value, and obtaining that the current regulation value of the other charging devices in the second charging set is the second preset value.
For example: the total regulated current is 80A, the charging devices in the third charging set are a charging device a, a charging device B and a charging device C, the fourth adjustable regulated current is 32A, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the charging access time of the charging device D is 8 points and 1 minute, the charging current is 11A, the charging access time of the charging device E is 8 points and 30 minutes, the charging current is 13A, the charging access time of the charging device F is 9 points, the charging current is 15A, the second regulated sequence is the charging device D, the charging device E and the charging device F, the second adjustable regulated current is 16A-11A +16A-13A +16A-15A =9A, the fifth adjustable regulated current is 32A-11A +32A-13A +32A-15A =57A, the third adjustable boost current is 14A, and 32A +9A +14A =55A < 80A, that is, the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is less than the total boost current, and 57A +33A +14A =104A > 80A, that is, the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is greater than the total boost current. At this time, the processing unit 30 finds that the fifth current difference value of the charging device in the second boost sequence is 32A-16A =16A, the difference between the total regulated current and the second, third, and fourth adjustable boosted currents is 80A-32A-14A-9A =25A, 16A +16A =32A > 25A, the accumulated fifth pseudo-regulated currents are 16A and 16A, and the last fifth pseudo-regulated current is 16A, the accumulated fifth trimming up current excluding the last fifth trimming up current is 16A, the charging device corresponding to 16A is the charging device D, and obtaining that the current regulation value of the charging device D is the first preset value, and the current regulation values of the charging device E and the charging device F are the second preset values.
Further, if a difference obtained by subtracting a sum of the second adjustable boost current, the third adjustable boost current and the fourth adjustable boost current from the total boost current is smaller than a fifth current difference in the second charging set, in this case, when the charging current of any one of the charging devices in the second charging set is boosted to the first preset value, the real-time power load exceeds the safe current threshold, so that the charging device with the current regulation value of the first preset value is not selected from the second charging set as the charging device to be regulated, that is, all the charging devices in the second charging set are selected as the charging device to be regulated, and the current regulation values of all the charging devices in the second charging set are the second preset value.
Further, the method is specifically configured to, when the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is smaller than the total boost current and the sum of the sixth adjustable boost current, the fifth adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging devices to be regulated, and obtain that the current regulation target value of a part of the charging devices to be regulated in the third charging set is the first preset value, and the current regulation target value of another part of the charging devices to be regulated is the second preset value, and screen all charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value of the charging devices to be regulated in the second charging set is the first preset value, and screening all the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value. It can be understood that the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is smaller than the total boost current, which means that when the charging currents of all the charging devices in the third charging set are all boosted to the second preset value, the charging currents of all the charging devices in the second charging set are all boosted to the first preset value, and when the charging currents of all the charging devices in the first charging set are all boosted to the first preset value, surplus current still exists, so that it is necessary to continuously adjust the current regulation target values of some charging devices to perform charging regulation; further, the sum of the sixth adjustable boost current, the fifth adjustable boost current and the fourth adjustable boost current is not less than the total boost current, which indicates that the charging current of a part of the charging devices to be regulated in the third charging set is further adjusted to the first preset value on the basis, and the charging current of another part of the charging devices to be regulated is adjusted to the second preset value, so as to meet the requirement of charging regulation, and therefore, a sixth current difference value of the charging devices in the first boost sequence is further calculated, the sixth current difference value is equal to the difference value between the first preset value and the second preset value, and the sixth current difference value is sequentially accumulated to be subtracted from the total boost current by the difference value obtained by subtracting the sum of the fifth adjustable boost current, the fourth adjustable boost current and the third adjustable boost current, and when the sum of the sixth current difference values is greater than the difference obtained by subtracting the sum of the fifth adjustable boost current, the fourth adjustable boost current and the third adjustable boost current from the total boost current, obtaining that the current regulation value of the charging device corresponding to the sixth current difference value except the last sixth current difference value is the first preset value, and obtaining that the current regulation value of other charging devices in the third charging set is the second preset value.
For example: the total boost current is 130A, the charging devices in the third charging set are a charging device A, a charging device B and a charging device C, the charging access time of the charging device A is 8: 1 min, the charging current is 2A, the charging access time of the charging device B is 8: 30 min, the charging current is 9A, the charging access time of the charging device C is 9: 5A, the fourth boost-adjustable current is 32A, the first boost sequence is the charging device A, the charging device B and the charging device C, the charging devices in the second charging set are a charging device D, a charging device E and a charging device F, the fifth boost-adjustable current is 57A, the charging device G, the charging device H and the charging device I of the charging device in the first charging set, the third boost-adjustable current is 14A, 32A +57A +14A =103A and less than 130A, that is, the sum of the fifth adjustable ramp-up current, the fourth adjustable ramp-up current and the third adjustable ramp-up current is less than the total adjusted ramp-up current, and the sixth adjustable ramp-up current is 32A-2A +32A-9A +32A-5A =80A, 80A +57A +14A =151A > 130A, that is, the sum of the sixth adjustable ramp-up current, the fifth adjustable ramp-up current and the third adjustable ramp-up current is greater than the total adjusted ramp-up current. At this time, it is obtained that a sixth current difference value of the charging device in the first boost sequence is 32A-16A =16A, a difference value of the total boost current and the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is 130A-57A-32A-14A =27A, 16A +16A =32A > 27A, the accumulated sixth reference boost currents are 16A and 16A, and the last sixth reference boost current is 16A, if the other accumulated sixth reference boost currents except the last sixth reference boost current are removed, the sixth reference boost current is 16A, the charging device corresponding to 16A is the charging device a, it is obtained that the current regulation value of the charging device a is the first preset value, and the current regulation values of the charging device B and the charging device C are the second preset value.
Further, if a difference obtained by subtracting a sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current from the total boost current is smaller than a sixth current difference in the first charging set, in this case, when the charging current of any one of the charging devices in the first charging set is increased to the first preset value, the real-time power load exceeds the safe current threshold, so that the charging device with the current regulation value of the first preset value is not selected from the third charging set as the charging device to be regulated, that is, all the charging devices in the third charging set are selected as the charging device to be regulated, and the current regulation values of all the charging devices in the third charging set are the second preset value.
Step S240: and regulating the charging current of the charging equipment to be regulated to at least one of the first preset value, the second preset value, the third preset value and 0.
Further, after a charging device to be regulated is screened out from the first charging set, the second charging set and the third charging set, and a current regulation target value of the charging device to be regulated is obtained, the charging current of the charging device to be regulated is regulated to at least one of the first preset value, the second preset value, the third preset value and 0 according to the current regulation target value, so that the power grid is ensured to be in a safe state, and the charging device is ensured to be charged efficiently.
According to the charging method, the current regulation target value is set to be any one of the first preset value, the second preset value, the third preset value and 0, so that a plurality of adjustable currents of the current charging equipment can be rapidly and accurately calculated according to the current of the charging equipment, an adjustable current which is most matched with the total regulation current is selected from the plurality of adjustable currents according to the total regulation current, the charging equipment to be regulated can be rapidly screened from the first set, the second set and the third set according to the adjustable current, the regulated current of the charging equipment to be regulated is accurately calculated according to the adjustable current, batch regulation is carried out on the charging equipment to be regulated, the regulation accuracy and the regulation efficiency are ensured, and the requirement of a community current safety threshold can be met only by one-time charging regulation, the regulation and control process is very accurate and rapid. In addition, when the charging current is regulated and reduced, the charging equipment in the charging set with higher charging current is sequentially selected as the charging equipment to be regulated and controlled, and the charging current is sequentially regulated and reduced by one current level within the range of the total regulating and controlling current to calculate the adjustable current, so that the charging equipment in the charging set with lower charging current cannot be regulated and reduced under the condition of lower total regulating and controlling current, and the charging current of the charging equipment in the charging set with higher charging current cannot be directly regulated and reduced to 0 under the condition of higher total regulating and controlling current, so that all the charging equipment can maintain relatively higher charging efficiency, and the intellectualization of charging regulation and control is realized.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, other various changes and modifications can be made according to the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the present invention.

Claims (39)

1. A charging regulation system, comprising:
The charging device comprises a power acquisition unit, a charging unit and a control unit, wherein the power acquisition unit is used for acquiring a real-time power load, and the real-time power load comprises residential electricity utilization current and charging current of charging equipment;
The comparison unit is used for comparing the real-time electric load with a safe current threshold value so as to obtain a comparison result;
The processing unit is used for calculating a total regulation and control current and at least one adjustable current of the charging equipment according to the comparison result, screening the charging equipment to be regulated and controlled according to the total regulation and control current and the at least one adjustable current, and obtaining a current regulation and control target value of the charging equipment to be regulated and controlled, wherein the current regulation and control target value comprises at least one of a first preset value, a second preset value, a third preset value and 0;
And the regulating and controlling unit is used for regulating and controlling the charging current of the charging equipment to be regulated and controlled to at least one of the first preset value, the second preset value, the third preset value and 0.
2. The charging regulation and control system of claim 1, wherein the total regulation current comprises a total regulation down current and a total regulation up current, and the adjustable current comprises an adjustable down current and an adjustable up current, and the processing unit is specifically configured to calculate the total regulation down current and the adjustable down current when the comparison result indicates that the real-time electrical load is not less than the safe current threshold; or the processing unit is specifically configured to calculate the total adjusted boost current and the adjustable boost current when the comparison result is that the real-time power load is smaller than the safe current threshold.
3. The charging conditioning system of claim 2, wherein the processing unit is further configured to divide the charging device into at least one charging set according to a charging current of the charging device.
4. The charging regulation and control system of claim 3, wherein the charging set comprises a first charging set, a second charging set, and a third charging set, and the processing unit is specifically configured to classify charging devices having the charging current not greater than a first preset value and greater than a second preset value into the first charging set, classify charging devices having the charging current not greater than the second preset value and greater than a third preset value into the second charging set, and classify charging devices having the charging current not greater than the third preset value into the third charging set.
5. The charging regulation system of claim 4, wherein the total regulating-down current is a total current required to be regulated down by all the charging devices when the real-time power load is greater than the safety current threshold, the total regulating-up current is a total current required to be regulated up by the charging devices connected in the power grid when the real-time power load is less than the safety current threshold, the adjustable-down current is a sum of charging currents required to be regulated down by all the charging devices when the charging devices regulate down the charging currents to at least one of the second preset value, the third preset value and 0, the adjustable-up current is a sum of charging currents required to be regulated up by all the charging devices when the charging currents are regulated up to at least one of the third preset value, the second preset value and the first preset value, and the adjustable-down current is not less than the total regulating-down current, the adjustable boost current is not greater than the total boost current.
6. The charging regulation system of claim 5, wherein the first preset value is 32A, the second preset value is 16A, and the third preset value is 10A.
7. The charging regulation and control system according to claim 6, wherein the adjustable reduction current includes a first adjustable reduction current, the first adjustable reduction current is a sum of first regulated reduction currents, the first regulated reduction currents are differences between charging currents of the charging devices in the first charging set and the second preset value, and the processing unit is specifically configured to, when the first adjustable reduction current is not less than the total regulated reduction current, screen a part of the charging devices in the first charging set as the charging devices to be regulated, and obtain the current regulation and control target value of the charging devices to be regulated in the first charging set as the second preset value.
8. The charging regulation and control system of claim 7, wherein the processing unit is specifically configured to form a first turn-down sequence for the charging devices in the first charging set according to a sequence of charging access times, and screen a part of the charging devices from the first turn-down sequence as the charging devices to be regulated and controlled.
9. The charging regulation and control system according to claim 8, wherein the processing unit is specifically configured to sequentially accumulate the first reference drop currents of the charging devices in the first drop sequence and compare the first reference drop currents with the total drop current, and when the sum of the first reference drop currents is not less than the total drop current, select the charging device corresponding to the accumulated first reference drop current as the charging device to be regulated and controlled.
10. The charging regulation system of claim 6, wherein the adjustable droop current comprises a first adjustable droop current and a second adjustable droop current, the first adjustable droop current is a sum of first adjustable droop currents, the first adjustable droop current is a difference between a charging current of a charging device in the first charging set and the second predetermined value, the second adjustable droop current is a sum of second adjustable droop currents, the second adjustable droop current is a difference between a charging current of a charging device in the second charging set and the third predetermined value, the processing unit is specifically configured to screen all charging devices from the first charging set as the charging device to be regulated when the first adjustable droop current is less than the total droop current and the sum of the first adjustable droop current and the second adjustable droop current is not less than the total droop current, and obtaining that the current regulation target value is the second preset value, screening part of the charging equipment in the second charging set as the charging equipment to be regulated, and obtaining that the current regulation target value is the third preset value.
11. The system according to claim 10, wherein the processing unit is specifically configured to form a second turn-down sequence for the charging devices in the second charging set according to a sequence of charging access times, and screen a part of the charging devices from the second turn-down sequence as the charging devices to be controlled.
12. The charging regulation and control system according to claim 11, wherein the processing unit is specifically configured to sequentially accumulate the second regulation and reduction currents of the charging devices in the second regulation and reduction sequence to compare with a difference between the total regulation and reduction current and the first adjustable reduction current, and select the charging device corresponding to the accumulated second regulation and reduction current as the charging device to be regulated and controlled when a sum of the second regulation and reduction currents is not less than the difference between the total regulation and reduction current and the first adjustable reduction current.
13. The charging regulation system of claim 6, wherein the adjustable droop current comprises a first adjustable droop current, a second adjustable droop current, and a third adjustable droop current, the first adjustable droop current is a sum of first droop currents, the first droop current is a difference between the charging currents of the charging devices in the first charging set and the second predetermined value, the second adjustable droop current is a sum of second droop currents, the second droop current is a difference between the charging currents of the charging devices in the second charging set and the third predetermined value, the third adjustable droop current is a sum of third droop currents, the third droop current is equal to the charging currents of the charging devices in the third charging set, the processing unit is specifically configured to, when the sum of the first adjustable droop current and the second adjustable droop current is less than the total droop current, and when the sum of the first adjustable reduction current, the second adjustable reduction current and the third adjustable reduction current is not less than the total adjustable reduction current, screening all charging devices in the first charging set as the charging devices to be regulated, obtaining that the current regulation target value is the second preset value, screening all charging devices in the second charging set as the charging devices to be regulated, obtaining that the current regulation target value is the third preset value, screening part of the charging devices in the third charging set as the charging devices to be regulated, and obtaining that the current regulation target value is 0.
14. The system according to claim 13, wherein the processing unit is specifically configured to form a third turn-down sequence for the charging devices in the third charging set according to a sequence of charging access times, and filter a part of the charging devices from the third turn-down sequence as the charging devices to be controlled.
15. The system according to claim 14, wherein the processing unit is specifically configured to sequentially accumulate the third buck currents of the charging devices in the third buck sequence to be compared with a difference obtained by subtracting a sum of the first and second adjustable buck currents from the total buck current, and select a charging device corresponding to the accumulated third buck current as the charging device to be regulated when the sum of the third buck currents is not less than the difference obtained by subtracting the sum of the first and second adjustable buck currents from the total buck current.
16. The charge regulation system of claim 6, wherein the adjustable droop current comprises a first adjustable droop current, a second adjustable droop current, a third adjustable droop current, and a fourth adjustable droop current, the first adjustable droop current is a sum of a first reference droop current, the first reference droop current is a difference between a charging current of a charging device in the first charging set and the second predetermined value, the second adjustable droop current is a sum of a second reference droop current, the second reference droop current is a difference between a charging current of a charging device in the second charging set and the third predetermined value, the third adjustable droop current is a sum of a third reference droop current, the third reference droop current is equal to a charging current of a charging device in the third charging set, and the fourth adjustable droop current is a sum of a fourth reference droop current, the fourth reference regulating and reducing current is a difference value between the charging current of the charging device in the first charging set and the third preset value, and the processing unit is specifically configured to, when the sum of the first adjustable reducing current, the second adjustable reducing current, and the third adjustable reducing current is smaller than the total regulating and reducing current, and the sum of the fourth adjustable reducing current, the second adjustable reducing current, and the third adjustable reducing current is not smaller than the total regulating and reducing current, screen all the charging devices from the first charging set as the charging devices to be regulated, and obtain that the current regulation and control target values of some charging devices in the first charging set are the third preset value, and the current regulation and control target values of some other charging devices are the second preset value; screening all charging equipment from the second charging set as the charging equipment to be regulated, and obtaining the current regulation target value as the third preset value; and screening all charging devices from the third charging set as the charging devices to be regulated, and obtaining that the current regulation target value is 0.
17. The system according to claim 16, wherein the processing unit is specifically configured to form a first turn-down sequence with the charging devices in the first charging set according to a sequence of charging access times, calculate a first current difference of the charging devices in the first turn-down sequence, where the first current difference is equal to a difference between the second preset value and the third preset value, sequentially accumulate the first current difference to be compared with a difference obtained by subtracting a sum of the first adjustable drop current and the second adjustable drop current from the total turn-down current, and obtain a current regulation value of the charging device corresponding to the accumulated first current difference as the third preset current when the sum of the first current difference is not less than the difference obtained by subtracting a sum of the first adjustable drop current and the second adjustable drop current from the total turn-down current And obtaining the current regulation and control values of other charging equipment in the first charging set as the second preset value.
18. The charging regulation system of claim 6, wherein the adjustable droop current comprises a second adjustable droop current, a third adjustable droop current, a fourth adjustable droop current, and a fifth adjustable droop current, the second adjustable droop current is a sum of second quasi-droop currents, the second quasi-droop current is a difference between a charging current of a charging device in the second charging set and the third preset value, the third adjustable droop current is a sum of third quasi-droop currents, the third quasi-droop current is equal to a charging current of a charging device in the third charging set, the fourth adjustable droop current is a sum of fourth quasi-droop currents, the fourth quasi-droop current is a difference between a charging current of a charging device in the first charging set and the third preset value, and the fifth adjustable droop current is a sum of fifth quasi-droop currents, the fifth calibrated droop current is equal to the charging current of the charging devices in the second charging set, and the processing unit is specifically configured to, when the sum of the fourth adjustable droop current, the second adjustable droop current, and the third adjustable droop current is smaller than the total droop current, and the sum of the fifth adjustable droop current, the fourth adjustable droop current, and the third adjustable droop current is not smaller than the total droop current, screen all the charging devices in the first charging set as the charging devices to be regulated, obtain that the current regulation target value of the charging devices in the first charging set is the third preset value, screen all the charging devices in the second charging set as the charging devices to be regulated, and obtain that the current regulation target value of some charging devices in the second charging set is the third preset value, and the current regulation target value of the other part of the charging equipment is 0, all the charging equipment is screened from the third charging set to be used as the charging equipment to be regulated, and the current regulation target value is 0.
19. The charging regulation and control system according to claim 18, wherein the processing unit is specifically configured to form a second regulation and reduction sequence with the charging devices in the second charging set according to a sequence of charging access time, calculate a second current difference value of the charging devices in the second regulation and reduction sequence, where the second current difference value is equal to the third preset value, sequentially accumulate the second current difference value to be compared with a difference value obtained by subtracting a sum of the second adjustable reduction current and the third adjustable reduction current from the total regulation and reduction current, and when the sum of the second current difference value is not less than a difference value obtained by subtracting a sum of the second adjustable reduction current and the third adjustable reduction current from the fourth adjustable reduction current from the total regulation and reduction current, obtain a current regulation and control value of the charging device corresponding to the accumulated second current difference value as 0, and obtaining the current regulation and control values of other charging devices in the second charging set as the third preset value.
20. The charge regulation system of claim 6, wherein the adjustable buck current comprises a third adjustable buck current, a fourth adjustable buck current, a fifth adjustable buck current, and a sixth adjustable buck current, the third adjustable buck current is a sum of a third regulated buck current, the third regulated buck current is equal to a charging current of a charging device in the third charging set, the fourth adjustable buck current is a sum of a fourth regulated buck current, the fourth regulated buck current is a difference between a charging current of a charging device in the first charging set and the third preset value, the fifth adjustable buck current is a sum of a fifth regulated buck current, the fifth regulated buck current is equal to a charging current of a charging device in the second charging set, the sixth adjustable buck current is a sum of a sixth regulated buck current, the sixth regulated buck current is equal to a charging current of a charging device in the first charging set, the processing unit is specifically configured to, when the sum of the fifth adjustable buck current, the fourth adjustable buck current, and the third adjustable buck current is smaller than the total buck current and the sum of the sixth adjustable buck current, the fifth adjustable buck current, and the third adjustable buck current is not smaller than the total buck current, screen all charging devices from the first charging set as the charging devices to be regulated, and obtain that a current regulation target value of the charging devices in the first charging set is the third preset value, and a current regulation target value of another part of the charging devices is 0, screen all charging devices from the second charging set as the charging devices to be regulated, and obtain that the current regulation target value is 0, and screen all charging devices from the third charging set as the charging devices to be regulated, and the current regulation target value is 0.
21. The charging regulation and control system according to claim 20, wherein the processing unit is specifically configured to form a first regulation and reduction sequence with the charging devices in the first charging set according to a sequence of charging access times, calculate a third current difference value of the charging devices in the first regulation and reduction sequence, where the third current difference value is equal to the third preset value, sequentially accumulate the third current difference value to be compared with a difference value obtained by subtracting a sum of the third adjustable reduction current, the fourth adjustable reduction current, and the fifth adjustable reduction current from the total regulation and reduction current, and when the sum of the third current difference value is not less than a difference value obtained by subtracting a sum of the third adjustable reduction current, the fourth adjustable reduction current, and the fifth adjustable reduction current from the total regulation and reduction current, obtain a current regulation and control value of the charging device corresponding to the accumulated third current difference value is 0, and obtaining the current regulation and control values of other charging devices in the first charging set as the third preset value.
22. The charging regulation and control system according to claim 6, wherein the adjustable boost current includes a first adjustable boost current, the first adjustable boost current is a sum of first quasi-regulated boost currents, the first quasi-regulated boost current is a difference between the third preset value and the charging current of the charging device in the third charging set, and the processing unit is specifically configured to, when the first adjustable boost current is not less than the total boost current, screen a part of the charging devices in the third charging set as the charging device to be regulated, and obtain that the current regulation and control target value of the charging device to be regulated in the third charging set is the third preset value.
23. The charging regulation system of claim 22, wherein the processing unit is specifically configured to preferentially select a charging device with a charging current of 0 in the third charging set as the charging device to be regulated.
24. the system according to claim 23, wherein the processing unit is specifically configured to form a first tuning sequence for the charging devices in the third charging set according to a sequence of charging access times, and screen a part of the charging devices from the first tuning sequence as the charging devices to be tuned and controlled.
25. The charging regulation and control system of claim 24, wherein the processing unit is specifically configured to sequentially accumulate the first quasi-regulated boost currents of the charging devices in the first boost sequence to compare with the total boost current, and select, when the sum of the first quasi-regulated boost currents is greater than the total boost current, the charging device corresponding to the accumulated first quasi-regulated boost currents except for the last first quasi-regulated boost current as the charging device to be boosted.
26. The charging regulation system of claim 6, wherein the adjustable boost current comprises a first adjustable boost current and a second adjustable boost current, the first adjustable boost current is a sum of first quasi-regulated boost currents, the first quasi-regulated boost current is a difference between the third preset value and charging currents of charging devices in the third charging set, the second adjustable boost current is a sum of second quasi-regulated boost currents, the second quasi-regulated boost current is a difference between the second preset value and charging currents of charging devices in the second charging set, the processing unit is specifically configured to screen all charging devices in the third charging set as the charging devices to be regulated when the first adjustable boost current is less than the total regulated boost current and the sum of the first adjustable boost current and the second adjustable boost current is not less than the total regulated boost current, and obtaining that the current regulation target value of the charging equipment to be regulated in the third charging set is the third preset value, screening part of the charging equipment in the second charging set as the charging equipment to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the second charging set is the second preset value.
27. The system according to claim 26, wherein the processing unit is specifically configured to form a second tuning sequence for the charging devices in the second charging set according to a sequence of charging access times, and filter a part of the charging devices from the second tuning sequence as the charging devices to be tuned and controlled.
28. The charging regulation and control system of claim 27, wherein the processing unit is specifically configured to sequentially accumulate the second quasi lift currents of the charging devices in the second lift sequence to compare with a difference between the total lift current and the first adjustable lift current, and select the charging device corresponding to the accumulated second quasi lift currents except for a last second quasi lift current as the to-be-lifted charging device when a sum of the second quasi lift currents is greater than a difference between the total lift current and the first adjustable lift current.
29. The charge regulation system of claim 6, wherein the adjustable boost current comprises a first adjustable boost current, a second adjustable boost current, and a third adjustable boost current, the first adjustable boost current is a sum of first quasi-regulated boost currents, the first quasi-regulated boost current is a difference between the third preset value and a charging current of a charging device in the third charging set, the second adjustable boost current is a sum of second quasi-regulated boost currents, the second quasi-regulated boost current is a difference between the second preset value and a charging current of a charging device in the second charging set, the third adjustable boost current is a sum of third quasi-regulated boost currents, the third quasi-regulated boost current is a difference between the first preset value and a charging current of a charging device in the first charging set, and the processing unit is specifically configured to process the first adjustable boost current and the second adjustable boost current when the sum of the first adjustable boost current and the second adjustable boost current is less than the total boost current and the first adjustable boost current is smaller than the total boost current When the sum of the boost current, the second adjustable boost current and the third adjustable boost current is not less than the total boost current, screening all charging devices in the third charging set as the charging devices to be regulated, obtaining that the current regulation target value of the charging devices to be regulated in the third charging set is the third preset value, screening all charging devices in the second charging set as the charging devices to be regulated, obtaining that the current regulation target value of the charging devices to be regulated in the second charging set is the second preset value, screening part of the charging devices in the first charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging devices to be regulated in the first charging set is the first preset value.
30. The system according to claim 29, wherein the processing unit is specifically configured to form a third tune-up sequence for the charging devices in the first charging set according to a precedence order of charging access times, and filter a part of the charging devices from the third tune-up sequence as the charging devices to be tuned and controlled.
31. The charging regulation and control system of claim 30, wherein the processing unit is specifically configured to sequentially accumulate the third scheduled boost currents of the charging devices in the third boost sequence to be compared with a difference obtained by subtracting a sum of the first scheduled boost current and the second scheduled boost current from the total boost current, and select, as the to-be-boosted charging device, a charging device corresponding to the accumulated third scheduled boost currents other than the last third scheduled boost current when the sum of the third scheduled boost currents is greater than the difference obtained by subtracting the sum of the first scheduled boost current and the second scheduled boost current from the total boost current.
32. The charge regulation system of claim 6, wherein the adjustable boost current comprises a first adjustable boost current, a second adjustable boost current, a third adjustable boost current, and a fourth adjustable boost current, the first adjustable boost current is a sum of first quasi-regulated boost currents, the first quasi-regulated boost currents are differences between the third preset value and the charging currents of the charging devices in the third charging set, the second adjustable boost current is a sum of second quasi-regulated boost currents, the second quasi-regulated boost currents are differences between the second preset value and the charging currents of the charging devices in the second charging set, the third adjustable boost current is a sum of third quasi-regulated boost currents, the third quasi-regulated boost currents are differences between the first preset value and the charging currents of the charging devices in the first charging set, and the fourth adjustable boost currents are sums of fourth quasi-regulated boost currents, the fourth quasi-regulation boost current is a difference value between the second preset value and a charging current of a charging device in the third charging set, and the processing unit is specifically configured to, when a sum of the first adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current and a sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging device to be regulated, and obtain a current regulation target value of a part of the charging devices to be regulated in the third charging set as the third preset value, and obtain a current regulation target value of another part of the charging devices to be regulated as the second preset value, and screen all charging devices from the second charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the second charging set is the second preset value, screening all the charging equipment from the first charging set as the charging equipment to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the first charging set is the first preset value.
33. the system according to claim 32, wherein the processing unit is specifically configured to form a first tune-up sequence from the charging devices in the third charging set according to a sequence of charging access times, calculate a fourth current difference of the charging devices in the first tune-up sequence, where the fourth current difference is equal to a difference between the second preset value and the third preset value, sequentially accumulate the fourth current differences to be compared with a difference obtained by subtracting a sum of the first adjustable boost current and the second adjustable boost current from the total tune-up current, and when the sum of the fourth current differences is greater than a difference obtained by subtracting a sum of the first adjustable boost current and the second adjustable boost current from the total tune-up current, obtain a difference corresponding to the accumulated fourth current differences other than a last fourth current difference And the current regulation value of the charging equipment is the second preset value, and the current regulation values of other charging equipment in the third charging set are obtained to be the third preset value.
34. The charge regulation system of claim 6, wherein the adjustable boost current comprises a second adjustable boost current, a third adjustable boost current, a fourth adjustable boost current, and a fifth adjustable boost current, the second adjustable boost current is a sum of second quasi-regulated boost currents, the second quasi-regulated boost currents are differences between the second preset value and the charging currents of the charging devices in the second charging set, the third adjustable boost current is a sum of third quasi-regulated boost currents, the third quasi-regulated boost currents are differences between the first preset value and the charging currents of the charging devices in the first charging set, the fourth adjustable boost current is a sum of fourth quasi-regulated boost currents, the fourth quasi-regulated boost currents are differences between the second preset value and the charging currents of the charging devices in the third charging set, and the fifth adjustable boost current is a sum of fifth quasi-regulated boost currents, the fifth quasi-regulation and boost current is a difference value between the first preset value and the charging current of the charging devices in the second charging set, and the processing unit is specifically configured to, when the sum of the fourth adjustable boost current, the second adjustable boost current, and the third adjustable boost current is smaller than the total boost current and the sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all the charging devices in the third charging set as the charging devices to be regulated, obtain that the current regulation and control target value of the charging devices to be regulated in the third charging set is the second preset value, screen all the charging devices in the second charging set as the charging devices to be regulated, and obtain that the current regulation and control target value of some of the charging devices to be regulated in the second charging set is the first preset value, and the current regulation target value of the other part of the charging equipment to be regulated is the second preset value, all the charging equipment is screened from the first charging set to be used as the charging equipment to be regulated, and the current regulation target value of the charging equipment to be regulated in the first charging set is obtained to be the first preset value.
35. The charge regulation system of claim 34, wherein the processing unit is specifically configured to form a second boost sequence from the charging devices in the second charging set according to a sequence of charging access times, calculate a fifth current difference of the charging devices in the second boost sequence, where the fifth current difference is equal to a difference between the first preset value and the second preset value, sequentially accumulate the fifth current difference to obtain a difference from the total boost current minus the second adjustable boost current, and a sum of the third adjustable boost current and the fourth adjustable boost current, compare the difference, and obtain a charge corresponding to the accumulated fifth current difference except a last fifth current difference when the sum of the fifth current differences is greater than the total boost current minus the second adjustable boost current, and the sum of the third adjustable boost current and the fourth adjustable boost current to obtain a difference And the current regulation value of the equipment is the first preset value, and the current regulation values of other charging equipment in the second charging set are obtained to be the second preset value.
36. The charge regulation system of claim 6, wherein the adjustable boost current comprises a third adjustable boost current, a fourth adjustable boost current, a fifth adjustable boost current, and a sixth adjustable boost current, the third adjustable boost current is a sum of third quasi-regulated boost currents, the third quasi-regulated boost currents are differences between the first preset value and the charging currents of the charging devices in the first charging set, the fourth adjustable boost current is a sum of fourth quasi-regulated boost currents, the fourth quasi-regulated boost currents are differences between the second preset value and the charging currents of the charging devices in the third charging set, the fifth adjustable boost currents are sums of fifth quasi-regulated boost currents, the fifth quasi-regulated boost currents are differences between the first preset value and the charging currents of the charging devices in the second charging set, and the sixth adjustable boost currents are sums of sixth quasi-regulated boost currents, the sixth quasi-regulation and boost current is a difference value between the first preset value and a charging current of a charging device in the third charging set, and the processing unit is specifically configured to, when a sum of the fifth adjustable boost current, the fourth adjustable boost current, and the third adjustable boost current is smaller than the total boost current and a sum of the sixth adjustable boost current, the fifth adjustable boost current, and the third adjustable boost current is not smaller than the total boost current, screen all charging devices from the third charging set as the charging device to be regulated, and obtain a current regulation and control target value of a part of the charging devices to be regulated in the third charging set as the first preset value, and a current regulation and control target value of another part of the charging devices to be regulated is the second preset value, and screen all charging devices from the second charging set as the charging devices to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the second charging set is the first preset value, screening all the charging equipment from the first charging set as the charging equipment to be regulated, and obtaining that the current regulation target value of the charging equipment to be regulated in the first charging set is the first preset value.
37. The charging regulation and control system of claim 36, wherein the processing unit is specifically configured to form a first boost sequence with the charging devices in the third charging set according to a sequence of charging access times, calculate a sixth current difference value of the charging devices in the first boost sequence, the sixth current difference value being equal to a difference value between the first preset value and the second preset value, sequentially accumulate the sixth current difference value to be compared with a difference value obtained by subtracting a sum of the fifth adjustable boost current and the fourth adjustable boost current from the total boost current, and when the sum of the sixth current difference values is greater than a difference value obtained by subtracting a sum of the fifth adjustable boost current and the fourth adjustable boost current from the total boost current, obtain a difference value corresponding to the accumulated sixth current difference values other than a last sixth current difference value And the current regulation value of the charging equipment is the first preset value, and the current regulation values of other charging equipment in the third charging set are obtained to be the second preset value.
38. The charge regulation system of claim 1, wherein the safe current threshold is a product of a rated current of the grid and a safety factor.
39. The charge regulation system according to claim 1, wherein the real-time electric load is equal to a sum of the residential electricity current and a charging current of the charging device.
CN201911068865.0A 2019-11-05 2019-11-05 Charging regulation and control system Active CN110562088B (en)

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