CN116834602A - Charging management method, device, equipment and medium based on micro-grid access control - Google Patents

Charging management method, device, equipment and medium based on micro-grid access control Download PDF

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Publication number
CN116834602A
CN116834602A CN202311117946.1A CN202311117946A CN116834602A CN 116834602 A CN116834602 A CN 116834602A CN 202311117946 A CN202311117946 A CN 202311117946A CN 116834602 A CN116834602 A CN 116834602A
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China
Prior art keywords
charging
strategy
current
input port
state information
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Granted
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CN202311117946.1A
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Chinese (zh)
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CN116834602B (en
Inventor
胡剑平
彭根
李耀嵬
尹国喜
苏博
吴戎
吴万泽
庾智睿
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Shenzhen Haylion Technologies Co ltd
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Shenzhen Haylion Technologies Co ltd
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    • 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
    • B60L53/64—Optimising energy costs, e.g. responding to electricity rates
    • 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a charging management method, a device, equipment and a medium based on micro-grid access control, wherein the method comprises the following steps: if the input charging requirement is received, acquiring current port state information, and acquiring corresponding charging cost information by combining the current time; selecting a charging strategy matched with the charging requirement and the charging cost information according to the strategy selection rule and judging whether the charging strategy meets the corresponding limiting condition or not; if the charging strategy is met, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy; and if the charging strategy is not satisfied, correspondingly controlling an input port electrically connected with the vehicle-mounted charging interface after the charging strategy is adjusted. According to the charging management method, the charging strategy which is most matched with the charging requirement is intelligently selected according to the charging cost information and the current port state information, and charging output is carried out through combination of the mains supply, the energy storage battery and the photovoltaic, so that the fast charging is realized, the situation that the load of the mains supply is exceeded is avoided, and the charging management efficiency is improved.

Description

Charging management method, device, equipment and medium based on micro-grid access control
Technical Field
The invention relates to the technical field of intelligent charging management, in particular to a charging management method, device, equipment and medium based on micro-grid access control.
Background
Along with the development of technology and the gradual improvement of environmental protection concepts, the number of new energy electric vehicles is also rapidly increased, and the new energy electric vehicles become the technical problem which must be solved in reality for rapid charging. In the conventional technical method, a charging station is usually constructed to charge the new energy automobile, however, the charging station with low power can cause the charging time of the new energy automobile to be too long; the high-power charging station can cause overhigh commercial power load to influence electricity safety, and the commercial power price changes along with time, and the existing charging station can not be used for carrying out balance selection between the charging speed and the charging price according to the charging requirement of the new energy automobile, so that the charging management efficiency is lower. Therefore, in the prior art method, the problem that efficient management cannot be performed in the process of charging the new energy electric automobile exists.
Disclosure of Invention
The embodiment of the invention provides a charging management method, device, equipment and medium based on micro-grid access control, and aims to solve the problem that in the prior art, efficient management cannot be performed in the process of charging an automobile.
In a first aspect, an embodiment of the present invention provides a charging management method based on access control of a micro-grid, where the method is applied to a charging management terminal, where the charging management terminal is electrically connected to a mains input port, an energy storage battery input port, and a photovoltaic input port, where the mains input port, the energy storage battery input port, and the photovoltaic input port are all electrically connected to a vehicle-mounted charging interface through a dc bus, and the mains input port is a dc port of an ac/dc converter connected to the mains, and the method includes:
if the input charging requirement is received, acquiring current port state information;
acquiring charging cost information corresponding to the current time according to the current port state information;
selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule;
judging whether the charging strategy meets the limiting condition corresponding to the current port state information or not;
if the charging strategy meets the limiting condition, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy;
if the charging strategy does not meet the limiting condition, adjusting the charging strategy according to the current port state information to obtain a charging adjustment strategy meeting the limiting condition;
And controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy.
In a second aspect, an embodiment of the present invention further provides a charging management device based on access control of a micro-grid, where the device is configured in a charging management terminal, where the charging management terminal is electrically connected to a mains input port, an energy storage battery input port, and a photovoltaic input port, where the mains input port, the energy storage battery input port, and the photovoltaic input port are all electrically connected to a vehicle-mounted charging interface through a dc bus, and the mains input port is an ac/dc converter dc port connected to the mains, and the device is configured to execute the charging management method based on access control of the micro-grid described in the first aspect, where the device includes:
the port state information acquisition unit is used for acquiring current port state information if the input charging requirement is received;
the charging cost information acquisition unit is used for acquiring charging cost information corresponding to the current time according to the current port state information;
the charging strategy matching unit is used for selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule;
The judging unit is used for judging whether the charging strategy meets the limiting condition corresponding to the current port state information;
the first charging control unit is used for controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy if the charging strategy meets the limiting condition;
the charging strategy adjustment unit is used for adjusting the charging strategy according to the current port state information if the charging strategy does not meet the limiting condition, so as to obtain a charging adjustment strategy meeting the limiting condition;
and the second charging control unit is used for controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy.
In a third aspect, an embodiment of the present invention further provides a computer device, where the device includes a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing the steps of the charging management method based on the micro-grid access control in the first aspect when executing the program stored in the memory.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the charging management method based on micro grid access control according to the first aspect.
The embodiment of the invention provides a charging management method, device, equipment and medium based on micro-grid access control, wherein the method comprises the following steps: if the input charging requirement is received, acquiring current port state information; acquiring charging cost information corresponding to the current time according to the current port state information; selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule; judging whether a charging strategy meets a limiting condition corresponding to the current port state information or not; if the limiting condition is met, controlling an input port electrically connected with the vehicle-mounted charging interface according to a charging strategy; if the charging strategy is not satisfied, the charging strategy is adjusted, and then an input port electrically connected with the vehicle-mounted charging interface is controlled according to the adjusted charging adjustment strategy. According to the charging management method based on the micro-grid access control, the charging strategy which is most matched with the charging requirement is intelligently selected according to the charging cost information and the current port state information, and charging output is carried out through combination of the mains supply, the energy storage battery and the photovoltaic, so that the situation that the mains supply load is exceeded while rapid charging is realized, and the charging management efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a method flowchart of a charging management method based on micro-grid access control according to an embodiment of the present invention;
fig. 2 is a schematic application scenario diagram of a charging management method based on micro-grid access control according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a charging management device based on access control of a micro-grid according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1 and 2, as shown in the drawing, an embodiment of the present invention provides a charging management method based on micro-grid access control, which is applied to a charging management terminal 10, wherein the charging management terminal 10 is electrically connected with a mains input port 20, an energy storage battery input port 30 and a photovoltaic input port 40 respectively, and the mains input port 20, the energy storage battery input port 30 and the photovoltaic input port 40 are all electrically connected with a vehicle-mounted charging interface 50 through a dc bus 11, and the mains input port 20 is an ac/dc converter dc port connected with the mains; the vehicle-mounted charging interface 50 is an interface assembled on the new energy automobile and used for charging the vehicle-mounted rechargeable battery; the charging management terminal 10 may be a control terminal assembled in a multifunctional charging station controlled by the micro-grid access, and then the charging management terminal may control the electric connection among the mains input port 20, the energy storage battery input port 30, the photovoltaic input port 40 and the vehicle-mounted charging interface 50, so that the new energy vehicle can obtain corresponding charging electric energy through the vehicle-mounted charging interface 50 and charge the vehicle-mounted charging battery, in practical application, the mains input port 20 is an ac/dc converter dc port connected with the mains, the mains input port 20, the photovoltaic input port 40 and the vehicle-mounted charging interface 50 are all connected with dc buses, the dc buses are correspondingly connected with the vehicle-mounted charging interface 50, and the micro-grid system uses the dc buses as integral output connecting lines. The utility power input port 20 is a circuit port configured in the multifunctional charging station and connected with external utility power, the energy storage battery input port 30 is a circuit port of an energy storage battery assembled in the multifunctional charging station, the photovoltaic input port 40 is a circuit interface configured in the multifunctional charging station and connected with a photovoltaic power generation board, the photovoltaic power generation board can be arranged at the top of the multifunctional charging station, charging piles with various different specifications can be configured in the multifunctional charging station, the output end of the charging pile can be electrically connected with the vehicle-mounted charging interface 50, and the specific structure of the multifunctional charging station can refer to patent document with application number of CN 202310523250.2. As shown in FIG. 1, the method includes steps S110 to S170.
S110, if the input charging requirement is received, acquiring current port state information.
And if the input charging requirement is received, acquiring current port state information. The charging management terminal may receive a charging requirement input by a user, for example, a user of the new energy electric automobile is a user, the user may send the charging requirement to the charging management terminal through an intelligent terminal such as a mobile phone, the charging requirement includes what mode the user wants to charge, for example, the charging requirement may include an optimal price, a minimum time or balance, that is, a balance is sought between the price and the time, the price is hoped to be preferential, and the charging time is shorter. After receiving the charging requirement, the charging management terminal can acquire the current port state information, namely, the charging management terminal respectively acquires: the utility power input port corresponds to the utility power load ratio, the energy storage electric quantity corresponding to the energy storage battery input port and the photovoltaic power supply corresponding to the photovoltaic input port. Because the intelligent charging station is connected to the micro-grid, the micro-grid is a grid configured according to the use requirements of residents or offices in a city, the available load of the micro-grid is usually low, the use requirements of all charging piles for quick charging at the same time cannot be met, and the duty ratio of the commercial power needs to be obtained to control the whole load for charging the commercial power. The energy storage electric quantity is the electric quantity information of the energy storage battery connected with the energy storage battery input port, the photovoltaic power supply is the current generated by the photovoltaic power generation plate through photovoltaic power generation, the electric energy generated by the photovoltaic power generation plate is converted into rated voltage input, the larger value of the photovoltaic electric quantity indicates that the power generation capacity of the photovoltaic power generation plate is stronger (when illumination is stronger or when illumination angle is direct), the smaller value of the photovoltaic electric quantity indicates that the power generation capacity of the photovoltaic power generation plate is weaker (in cloudy days or when sunlight is not direct), and the zero value of the photovoltaic electric quantity indicates that the photovoltaic power generation plate does not generate electricity (at night).
Under the condition that the energy storage battery is not outputting current, if the energy storage electric quantity is lower than a first electric quantity threshold value and the value of the photovoltaic electric quantity is not zero, the charging management terminal controls the output end of the photovoltaic power generation plate to be connected with the energy storage battery, so that the energy storage battery is charged through the photovoltaic power generation plate; if the energy storage electric quantity is lower than the first electric quantity threshold value and the value of the photovoltaic electric quantity is zero, the charging management terminal controls the commercial power output end to be connected with the energy storage battery, and the energy storage battery is charged through the commercial power; if the electricity storage quantity is lower than the second electricity quantity threshold value, the charging management terminal controls the output end of the photovoltaic power generation plate and the commercial power output end to be connected with the energy storage battery at the same time, and the energy storage battery is charged through the commercial power and the photovoltaic power generation plate at the same time. The second electric quantity threshold value is smaller than the first electric quantity threshold value, for example, the first electric quantity threshold value is configured to be 80%, and the second electric quantity threshold value is configured to be 30%.
S120, acquiring charging cost information corresponding to the current time according to the current port state information.
And acquiring charging cost information corresponding to the current time according to the current port state information. The charging cost information includes a first cost value and a second cost value. Corresponding charging cost information can be obtained according to the current port state information and the current time, a first cost value in the charging cost information is a cost value of the electric supply input port output to the vehicle-mounted charging interface, and a second cost value in the charging cost information is a cost value of the energy storage battery output direct current and the photovoltaic power generation panel output current to the vehicle-mounted charging interface. When the multifunctional charging station charges the new energy automobile, two charging modes of alternating current charging and direct current charging can be correspondingly configured, the alternating current charging realizes the charging of the new energy automobile through alternating current output by commercial power, the direct current charging uses an energy storage battery as a main output direct current to charge the new energy automobile, and if the numerical value of the photovoltaic electric quantity corresponding to the photovoltaic power generation plate is not zero, the direct current output by the photovoltaic power generation plate is converged to a direct current bus at the same time to assist the charging of the new energy automobile (the direct current output by the photovoltaic power generation plate is smaller than the direct current output by the energy storage battery).
In a specific embodiment, step S120 includes the sub-steps of: determining a peak-valley period of power consumption corresponding to the current time and acquiring the current commercial power price; calculating a first cost value corresponding to the current commercial power price according to a preset first cost calculation formula; and calculating a second cost value corresponding to the photovoltaic power supply in the current port state information and the current commercial power price according to a preset second cost calculation formula.
Specifically, the corresponding peak-valley period of the electricity consumption can be determined according to the current time, and the corresponding current commercial power price can be determined according to the peak-valley period of the electricity consumption. Generally, the electricity price distinguishes the price of the commercial power of peak sections (07:00-11:00 and 19:00-23:00), the price of the commercial power of valley sections (23:00-7:00) and the price of the commercial power of flat sections (11:00-19:00), and the corresponding commercial power prices of different time periods are different.
For example, when the current time is 9:15, the peak-valley period of the electricity consumption correspondingly determined is a peak section, and the commercial electricity price (commercial electricity consumption) of the peak section is further determined to be 1.5/kW.h.
The first cost value corresponding to the current utility power price can be calculated according to the first cost calculation formula, and the actual cost of the electric energy input by the vehicle-mounted charging interface can be calculated according to the first cost calculation formula because electric energy loss exists in the process of accessing the utility power through the utility power input port and outputting the electric energy to the vehicle-mounted charging battery through the vehicle-mounted charging interface. For example, the first cost calculation formula may be: c (C) 1 =d×a, where a is the coefficient value in the first cost calculation formula, e.g. set a to 1.25, D is the current utility price, C 1 For the calculated first cost value.
Under the condition that the energy storage battery is in output current, the energy storage battery needs to be charged through the mains supply synchronization, so that in order to evaluate the actual cost of direct current output by the photovoltaic power generation panel and the energy storage battery, a second cost value corresponding to the photovoltaic power supply and the current mains supply price can be calculated through a second cost calculation formula.
For example, the second cost calculation formula may be expressed by formula (1):
（1）；
wherein b is a preset coefficient value, for example, b is set to 1.5, r is a preset cost value for cost allocation of the photovoltaic panel, G is a photovoltaic power supply,u is the rated voltage corresponding to the photovoltaic power supply, D is the current commercial power price, t is the preset lowest direct current value, C 2 Is the second cost value.
S130, selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule.
And selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule. The policy selection rule is rule information for matching and selecting corresponding charging policies, and the charging policies matched with the charging requirements and the charging cost information can be obtained according to the policy selection rule, wherein a plurality of charging policies are preset in the policy selection rule, such as a fast power storage output policy, an alternating current output policy and a slow power storage output policy can be preset in the policy selection rule.
In a specific embodiment, step S130 includes the sub-steps of: judging whether the charging requirement is the minimum time or the optimal price; judging whether a first cost value in the charging cost information is larger than a second cost value; if the charging requirement is the minimum time, acquiring a rapid electricity storage output strategy from the strategy selection rule as a matched charging strategy; if the charging requirement is an optimal price and the first cost value is not greater than the second cost value, acquiring an alternating current output strategy from the strategy selection rule as a matched charging strategy; if the charging requirement is an optimal price and the first cost value is larger than the second cost value, acquiring a slow electricity storage output strategy from the strategy selection rule as a matched charging strategy; and if the charging requirement is not the minimum time or the optimal price, acquiring an alternating current output strategy from the strategy selection rule as a matched charging strategy.
Specifically, whether the charging requirement is the minimum time or the optimal price can be judged, and whether the first cost value is larger than the second cost value is further judged; if the charging requirement is the minimum time, the charging is needed in the fastest way, a charging strategy with a matched quick electricity storage output strategy is selected, and the quick electricity storage output strategy controls the photovoltaic power generation panel and the energy storage battery to output and charge with the maximum direct current; if the charging requirement is the optimal price and the first cost value is not greater than the second cost value, selecting a charging strategy with an alternating current output strategy matched with the first cost value, wherein the alternating current output strategy controls the commercial power to carry out alternating current charging; if the charging requirement is the optimal price and the first cost value is larger than the second cost value, selecting a charging strategy with a slow electricity storage output strategy matched with the first cost value, wherein the slow electricity storage output strategy controls the photovoltaic power generation panel and the energy storage battery to output and charge with a default low direct current; if the charging demand is not the minimum time or the optimal price, that is, the charging demand is balanced, the alternating current output strategy is selected as the matched charging strategy.
And S140, judging whether the charging strategy meets the limiting condition corresponding to the current port state information.
And judging whether the charging strategy meets the limiting condition corresponding to the current port state information. Further, to avoid overload operation of the multifunctional charging station, it is necessary to determine a limitation condition corresponding to the current port state information, and determine whether the matched charging policy meets the corresponding limitation condition.
In a specific embodiment, step S140 includes the sub-steps of: if the charging strategy is an alternating current output strategy, judging whether a space duty ratio corresponding to a mains supply duty ratio in the current port state information is larger than an output duty ratio corresponding to the alternating current output strategy or not so as to judge whether the charging strategy meets the limiting condition or not; and if the charging strategy is a power storage output strategy, judging whether the stored power in the current port state information is greater than a power threshold corresponding to the charging strategy or not so as to judge whether the charging strategy meets the limiting condition or not.
Specifically, if the charging strategy is an ac output strategy, a space ratio corresponding to a utility load ratio in the current port state information, that is, a ratio between the currently used load and the maximum load that can be borne by the micro-grid, may be obtained. For example, the mains load duty cycle is 0.75, then the free duty cycle is 0.25. Judging whether the free space ratio is larger than the output ratio corresponding to the alternating current output strategy, if the output ratio corresponding to the alternating current output strategy is 0.3, judging that the free space ratio is not larger than the output ratio, and judging that the limiting condition is not met; if the output duty ratio corresponding to the ac output strategy is 0.2, the duty ratio is larger than the output duty ratio, and it is determined that the constraint condition is satisfied.
If the charging strategy is the power storage output strategy, firstly determining an electric quantity threshold corresponding to the charging strategy, for example, a first output electric quantity threshold corresponding to the fast power storage output strategy is 0.5, and a second output electric quantity threshold corresponding to the slow power storage output strategy is 0.25, wherein the electric quantity threshold is the lowest threshold for ensuring that the energy storage battery can be charged and output according to the corresponding charging strategy. At this time, whether the stored electricity quantity in the current port state information is larger than a corresponding electricity quantity threshold value or not can be judged, and if the stored electricity quantity is larger than the corresponding electricity quantity threshold value, the limitation condition is judged to be met; and if the power consumption is not greater than the corresponding power consumption threshold, judging that the limiting condition is not met.
And S150, if the charging strategy meets the limiting condition, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy.
And if the charging strategy meets the limiting condition, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy. If the charging strategy meets the corresponding limiting condition, the charging management terminal can be electrically connected with the corresponding input port and the vehicle-mounted charging interface according to the control strategy, so that the vehicle-mounted charging interface can output electric energy and charge the vehicle-mounted rechargeable battery.
Specifically, if the charging strategy is an alternating current output strategy, the commercial power input port is electrically connected with the vehicle-mounted charging interface, and alternating current is input through the commercial power input port to charge the vehicle-mounted rechargeable battery; if the charging strategy is a slow electricity storage output strategy, the photovoltaic input port and the energy storage battery input port are electrically connected with the vehicle-mounted charging interface at the same time, and a default low direct current is output to charge the vehicle-mounted charging battery; and if the charging strategy is a rapid electricity storage output strategy, the photovoltaic input port and the energy storage battery input port are electrically connected with the vehicle-mounted charging interface at the same time, and the maximum direct current is output to charge the vehicle-mounted charging battery.
And S160, if the charging strategy does not meet the limiting condition, adjusting the charging strategy according to the current port state information to obtain a charging adjustment strategy meeting the limiting condition.
And if the charging strategy does not meet the limiting condition, adjusting the charging strategy according to the current port state information to obtain a charging adjustment strategy meeting the limiting condition. If the charging strategy does not meet the corresponding limiting conditions, the charging parameters configured in the charging strategy can be adjusted according to the current port state information, so that the charging parameters in the charging strategy are matched with the current port state information, and the charging adjustment strategy obtained through adjustment meets the limiting conditions corresponding to the current port state information.
In a specific embodiment, step S160 includes the sub-steps of: if the charging strategy is an alternating current output strategy, adjusting charging parameters in the charging strategy to be matched with the idle duty ratio according to the idle duty ratio corresponding to the commercial power load duty ratio in the current port state information; and if the charging strategy is a power storage output strategy, adjusting the charging parameters in the charging strategy to be matched with the energy storage electric quantity according to the energy storage electric quantity in the current port state information.
Specifically, if the charging strategy is an ac output strategy, the charging parameters in the charging strategy are adjusted according to the idle duty ratio corresponding to the utility power load duty ratio in the current port state information, so that the adjusted charging parameters are matched with the idle duty ratio. For example, if the duty ratio is 0.25, the output ratio corresponding to the default current output by the current ac output strategy is 0.3, the default current I 1 I.e. the charging parameters in the ac output strategy; the default current I in the AC output strategy can be calculated according to the ratio of the free duty ratio to the output duty ratio 1 Making equal proportion adjustments, e.g. new charge parameters may be adjusted to I 1 X 0.25/0.3, thereby effecting adjustment of the charging parameters in the ac output strategy.
If the charging strategy is a power storage output strategy, the charging parameters in the charging strategy can be adjusted according to the stored energy electric quantity in the current port state information, so that the adjusted charging parameters are matched with the stored energy electric quantity. For example, the stored energy power is 0.45, the first output power threshold corresponding to the fast power storage output strategy is 0.5, and the default DC output current in the fast power storage output strategy is I 2 . The default current I in the AC output strategy can be calculated according to the ratio of the energy storage electric quantity to the output duty ratio 1 Making equal proportion adjustments, e.g. new charge parameters may be adjusted to I 2 X 0.45/0.5, thereby implementing the adjustment of the charging parameters in the fast power storage output strategy. Then to the slow power storage output strategyThe manner of adjusting the charging parameters in the strategy is the same as that of adjusting the charging parameters in the rapid power storage output strategy, and will not be described here.
S170, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy.
And controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy. And then, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy, wherein the specific control mode is the same as that of the step S150. After the corresponding input port is electrically connected with the vehicle-mounted charging interface, corresponding electric energy can be output according to the charging parameters configured in the charging adjustment strategy so as to charge the vehicle-mounted rechargeable battery.
The charging management method, device, equipment and medium based on micro-grid access control provided by the embodiment of the invention comprise the following steps: if the input charging requirement is received, acquiring current port state information; acquiring charging cost information corresponding to the current time according to the current port state information; selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule; judging whether a charging strategy meets a limiting condition corresponding to the current port state information or not; if the limiting condition is met, controlling an input port electrically connected with the vehicle-mounted charging interface according to a charging strategy; if the charging strategy is not satisfied, the charging strategy is adjusted, and then an input port electrically connected with the vehicle-mounted charging interface is controlled according to the adjusted charging adjustment strategy. According to the charging management method based on the micro-grid access control, the charging strategy which is most matched with the charging requirement is intelligently selected according to the charging cost information and the current port state information, and charging output is carried out through combination of the mains supply, the energy storage battery and the photovoltaic, so that the situation that the mains supply load is exceeded while rapid charging is realized, and the charging management efficiency is improved.
The embodiment of the invention also provides a charging management device based on the micro-grid access control, which can be configured in a charging management terminal, and is used for executing any embodiment of the charging management method based on the micro-grid access control. Specifically, referring to fig. 3, fig. 3 is a schematic block diagram of a charging management device based on access control of a micro-grid according to an embodiment of the present invention.
As shown in fig. 3, the charging management apparatus 100 based on the micro grid access control includes a port state information acquisition unit 110, a charging cost information acquisition unit 120, a charging policy matching unit 130, a judgment unit 140, a first charging control unit 150, a charging policy adjustment unit 160, and a second charging control unit 170.
The port status information obtaining unit 110 is configured to obtain current port status information if the input charging requirement is received.
And a charging cost information obtaining unit 120, configured to obtain charging cost information corresponding to the current time according to the current port state information.
The charging policy matching unit 130 is configured to select a charging policy matching the charging requirement and the charging cost information according to a policy selection rule.
And the judging unit 140 is configured to judge whether the charging policy meets the constraint condition corresponding to the current port state information.
The first charging control unit 150 is configured to control an input port electrically connected to the vehicle charging interface according to the charging policy if the charging policy meets the constraint condition.
And a charging policy adjustment unit 160, configured to adjust the charging policy according to the current port state information if the charging policy does not meet the constraint condition, so as to obtain a charging adjustment policy that meets the constraint condition.
The second charging control unit 170 is configured to control an input port electrically connected to the vehicle charging interface according to the charging adjustment policy.
The charging management device based on the micro-grid access control provided by the embodiment of the invention is applied to the charging management method based on the micro-grid access control, and if the input charging requirement is received, the current port state information is obtained; acquiring charging cost information corresponding to the current time according to the current port state information; selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule; judging whether a charging strategy meets a limiting condition corresponding to the current port state information or not; if the limiting condition is met, controlling an input port electrically connected with the vehicle-mounted charging interface according to a charging strategy; if the charging strategy is not satisfied, the charging strategy is adjusted, and then an input port electrically connected with the vehicle-mounted charging interface is controlled according to the adjusted charging adjustment strategy. According to the charging management method based on the micro-grid access control, the charging strategy which is most matched with the charging requirement is intelligently selected according to the charging cost information and the current port state information, and charging output is carried out through combination of the mains supply, the energy storage battery and the photovoltaic, so that the situation that the mains supply load is exceeded while rapid charging is realized, and the charging management efficiency is improved.
The above-described charging management apparatus based on the micro grid access control may be implemented in the form of a computer program that can be run on a computer device as shown in fig. 4.
Referring to fig. 4, fig. 4 is a schematic block diagram of a computer device according to an embodiment of the present invention. The computer device may be a charge management terminal for performing a micro grid access control-based charge management method to control electrical connections between the utility power input port 20, the energy storage battery input port 30, and the photovoltaic input port 40 and the on-board charge interface 50.
Referring to fig. 4, the computer device 500 includes a processor 502, a memory, and a network interface 505, which are connected by a communication bus 501, wherein the memory may include a storage medium 503 and an internal memory 504.
The storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032, when executed, may cause the processor 502 to perform a method of charging management based on microgrid access control, where the storage medium 503 may be a volatile storage medium or a non-volatile storage medium.
The processor 502 is used to provide computing and control capabilities to support the operation of the overall computer device 500.
The internal memory 504 provides an environment for the execution of a computer program 5032 in the storage medium 503, which computer program 5032, when executed by the processor 502, causes the processor 502 to perform a method of charging management based on microgrid access control.
The network interface 505 is used for network communication, such as providing for transmission of data information, etc. It will be appreciated by those skilled in the art that the architecture shown in fig. 4 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting of the computer device 500 to which the present inventive arrangements may be implemented, and that a particular computer device 500 may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
The processor 502 is configured to execute a computer program 5032 stored in a memory, so as to implement the corresponding functions in the charging management method based on the micro-grid access control.
Those skilled in the art will appreciate that the embodiment of the computer device shown in fig. 4 is not limiting of the specific construction of the computer device, and in other embodiments, the computer device may include more or less components than those shown, or certain components may be combined, or a different arrangement of components. For example, in some embodiments, the computer device may include only a memory and a processor, and in such embodiments, the structure and function of the memory and the processor are consistent with the embodiment shown in fig. 4, and will not be described again.
It should be appreciated that in an embodiment of the invention, the processor 502 may be a central processing unit (Central Processing Unit, CPU), the processor 502 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSPs), application specific integrated circuits (Application Specific Integrated Circuit, ASICs), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In another embodiment of the invention, a computer-readable storage medium is provided. The computer readable storage medium may be a volatile or nonvolatile computer readable storage medium. The computer readable storage medium stores a computer program, wherein the computer program when executed by a processor implements the steps included in the charging management method based on micro grid access control described above.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus, device and unit described above may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein. Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units is merely a logical function division, there may be another division manner in actual implementation, or units having the same function may be integrated into one unit, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or elements, or may be an electrical, mechanical, or other form of connection.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention is essentially or part of what contributes to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a computer-readable storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned computer-readable storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a charging management method based on little electric wire netting access control, its characterized in that, the method is applied to in the charging management terminal, charging management terminal carries out electric connection with commercial power input port, energy storage battery input port and photovoltaic input port respectively, commercial power input port, energy storage battery input port and photovoltaic input port all carry out electric connection through direct current bus and on-vehicle charging interface, commercial power input port is the alternating current/direct current converter direct current port that inserts with the commercial power, the method includes:
if the input charging requirement is received, acquiring current port state information;
acquiring charging cost information corresponding to the current time according to the current port state information;
selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule;
Judging whether the charging strategy meets the limiting condition corresponding to the current port state information or not;
if the charging strategy meets the limiting condition, controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy;
if the charging strategy does not meet the limiting condition, adjusting the charging strategy according to the current port state information to obtain a charging adjustment strategy meeting the limiting condition;
and controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy.
2. The method for managing charging based on micro-grid access control according to claim 1, wherein the charging cost information includes a first cost value and a second cost value, and the obtaining the charging cost information corresponding to the current time according to the current port state information includes:
determining a peak-valley period of power consumption corresponding to the current time and acquiring the current commercial power price;
calculating a first cost value corresponding to the current commercial power price according to a preset first cost calculation formula;
and calculating a second cost value corresponding to the photovoltaic power supply in the current port state information and the current commercial power price according to a preset second cost calculation formula.
3. The method for managing charging based on micro-grid access control according to claim 2, wherein selecting a charging policy matching the charging demand and the charging cost information according to a policy selection rule comprises:
judging whether the charging requirement is the minimum time or the optimal price;
judging whether a first cost value in the charging cost information is larger than a second cost value;
if the charging requirement is the minimum time, acquiring a rapid electricity storage output strategy from the strategy selection rule as a matched charging strategy;
if the charging requirement is an optimal price and the first cost value is not greater than the second cost value, acquiring an alternating current output strategy from the strategy selection rule as a matched charging strategy;
if the charging requirement is an optimal price and the first cost value is larger than the second cost value, acquiring a slow electricity storage output strategy from the strategy selection rule as a matched charging strategy;
and if the charging requirement is not the minimum time or the optimal price, acquiring an alternating current output strategy from the strategy selection rule as a matched charging strategy.
4. The method for managing charging based on micro-grid access control according to claim 1, wherein the determining whether the charging policy satisfies the constraint condition corresponding to the current port state information comprises:
If the charging strategy is an alternating current output strategy, judging whether a space duty ratio corresponding to a mains supply duty ratio in the current port state information is larger than an output duty ratio corresponding to the alternating current output strategy or not so as to judge whether the charging strategy meets the limiting condition or not;
and if the charging strategy is a power storage output strategy, judging whether the stored power in the current port state information is greater than a power threshold corresponding to the charging strategy or not so as to judge whether the charging strategy meets the limiting condition or not.
5. The method for managing charging based on micro-grid access control according to claim 4, wherein the adjusting the charging policy according to the current port status information to obtain a charging adjustment policy satisfying the constraint condition comprises:
if the charging strategy is an alternating current output strategy, adjusting charging parameters in the charging strategy to be matched with the idle duty ratio according to the idle duty ratio corresponding to the commercial power load duty ratio in the current port state information;
and if the charging strategy is a power storage output strategy, adjusting the charging parameters in the charging strategy to be matched with the energy storage electric quantity according to the energy storage electric quantity in the current port state information.
6. A charging management device based on micro-grid access control, wherein the device is configured in a charging management terminal, the charging management terminal is electrically connected with a mains input port, an energy storage battery input port and a photovoltaic input port respectively, the mains input port, the energy storage battery input port and the photovoltaic input port are all electrically connected with a vehicle-mounted charging interface through a direct current bus, the mains input port is an ac/dc converter direct current port connected with the mains, and the device is used for executing the charging management method based on micro-grid access control according to any one of claims 1-5, and the device comprises:
the port state information acquisition unit is used for acquiring current port state information if the input charging requirement is received;
the charging cost information acquisition unit is used for acquiring charging cost information corresponding to the current time according to the current port state information;
the charging strategy matching unit is used for selecting a charging strategy matched with the charging requirement and the charging cost information according to a strategy selection rule;
the judging unit is used for judging whether the charging strategy meets the limiting condition corresponding to the current port state information;
The first charging control unit is used for controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging strategy if the charging strategy meets the limiting condition;
the charging strategy adjustment unit is used for adjusting the charging strategy according to the current port state information if the charging strategy does not meet the limiting condition, so as to obtain a charging adjustment strategy meeting the limiting condition;
and the second charging control unit is used for controlling an input port electrically connected with the vehicle-mounted charging interface according to the charging adjustment strategy.
7. The charging management apparatus based on micro-grid access control according to claim 6, wherein the charging cost information includes a first cost value and a second cost value, the charging cost information obtaining unit includes:
the current commercial power price acquisition unit is used for determining the peak-valley period of the power consumption corresponding to the current time and acquiring the current commercial power price;
the first cost value calculation unit is used for calculating a first cost value corresponding to the current commercial power price according to a preset first cost calculation formula;
and the second cost value calculation unit is used for calculating a second cost value corresponding to the photovoltaic power supply and the current commercial power price in the current port state information according to a preset second cost calculation formula.
8. The microgrid access control-based charge management device according to claim 6, wherein said charge policy matching unit comprises:
a demand judging unit for judging whether the charging demand is a minimum time or an optimal price;
a cost value judging unit configured to judge whether a first cost value in the charging cost information is greater than the second cost value;
the first strategy matching unit is used for acquiring a rapid power storage output strategy from the strategy selection rule as a matched charging strategy if the charging requirement is the minimum time;
the second policy matching unit is used for acquiring an alternating current output policy from the policy selection rule as a matched charging policy if the charging requirement is an optimal price and the first cost value is not greater than the second cost value;
the third strategy matching unit is used for acquiring a slow electricity storage output strategy from the strategy selection rule as a matched charging strategy if the charging requirement is an optimal price and the first cost value is larger than the second cost value;
and the fourth policy matching unit is used for acquiring an alternating current output policy from the policy selection rule as a matched charging policy if the charging requirement is not the minimum time or the optimal price.
9. A computer device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the microgrid access control-based charge management method according to any one of claims 1 to 5 when executing a program stored on a memory.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the microgrid access control based charging management method according to any one of claims 1-5.
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CN113733956A (en) * 2021-08-17 2021-12-03 华为数字能源技术有限公司 Charging method, charging device and charging system
CN116545050A (en) * 2023-03-29 2023-08-04 国网河北省电力有限公司邯郸供电分公司 Charging method, charging device, electronic equipment and storage medium

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GB1472465A (en) * 1975-04-11 1977-05-04 Plessey Co Ltd Reversible inverter charger apparatus
CN105914799A (en) * 2016-05-03 2016-08-31 北京北变微电网技术有限公司 V2G (Vehicle-to-grid) AC-DC mixed micro grid power supply system and structure
CN107346896A (en) * 2017-06-10 2017-11-14 北京科诺伟业科技股份有限公司 A kind of light stores up micro-grid system energy accumulation current converter host-slave parallel control method
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