CN116729186A - Charging power regulation and control method and system and electronic equipment - Google Patents

Charging power regulation and control method and system and electronic equipment Download PDF

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Publication number
CN116729186A
CN116729186A CN202310862922.2A CN202310862922A CN116729186A CN 116729186 A CN116729186 A CN 116729186A CN 202310862922 A CN202310862922 A CN 202310862922A CN 116729186 A CN116729186 A CN 116729186A
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China
Prior art keywords
charging
power
station
vehicle
state
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CN202310862922.2A
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Chinese (zh)
Inventor
丁锐
李斌
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Beijing X-Charge Co ltd
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Beijing X-Charge Co ltd
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Priority to CN202310862922.2A priority Critical patent/CN116729186A/en
Publication of CN116729186A publication Critical patent/CN116729186A/en
Pending legal-status Critical Current

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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
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • 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
    • B60L53/30—Constructional details of charging stations
    • 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
    • B60L53/66—Data transfer between charging stations and vehicles
    • 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 application relates to a charging power regulation and control method, a system and electronic equipment, wherein the method comprises the steps of acquiring station attributes of a charging station, charging station data and charging vehicle data, wherein the charging vehicle data represent various data generated in a charging process of a charging vehicle, and the charging station data represent various data generated in a using process of the charging station; determining charging priority according to station attributes, charging station data and charging vehicle data; and calculating and distributing the target charging power corresponding to the charging vehicle according to the charging priority order. The application solves the problem that the power distribution can not be adjusted according to the actual condition of the charging vehicle, and has the effect of improving the charging power utilization rate of the charging station.

Description

Charging power regulation and control method and system and electronic equipment
Technical Field
The present application relates to the field of charging control technologies, and in particular, to a method and a system for controlling charging power, and an electronic device.
Background
With the rapid development of new energy technology, electric vehicles are the first choice of most people, and the coverage rate of charging piles configured for charging electric vehicles is also continuously increased. However, at present, when one charging station supplies power to a plurality of charging piles at the same time, the power supply pressure of the distribution box of the charging station becomes large, the charging station power is insufficient to support the charging power of each charging pile, and power supply interruption occurs. In order to solve the problem of power interruption, an orderly-charged power adjustment scheme is provided, and when the load of a charging station exceeds a certain amount, the power supply stopping control is performed on the charging terminal according to the charging access time. Thus, although the load of the charging station can be regulated, frequent start and stop control can lead to the increase of the current of the equipment, thereby damaging the charging terminal and the power supply circuit.
The related technical scheme has the following defects: the power distribution cannot be adjusted in real time according to the actual condition of the charging vehicle, the phenomenon of excessive load of the charging station occurs, and then the condition that the power supply of the charging station is interrupted and the power cannot be supplied occurs, so that the problem of low charging power utilization rate of the charging station is caused.
Disclosure of Invention
In order to solve the problem of low charging power utilization rate of a charging station, the application provides a charging power regulation and control method, a charging power regulation and control system and electronic equipment.
In a first aspect of the present application, a charging power regulation method is provided. The method comprises the following steps:
acquiring station attributes of a charging station, charging station data and charging vehicle data, wherein the charging vehicle data represents various data generated by a charging vehicle in a charging process, and the charging station data represents various data generated by the charging station in a using process;
determining a charging priority according to the station attribute, the charging station data and the charging vehicle data;
and calculating and distributing the target charging power corresponding to the charging vehicle according to the charging priority order.
According to the technical scheme, the station attribute, the charging station data and the charging vehicle data of the charging station are obtained, then according to the difference of the station attribute, the charging priority of different stations is calculated by combining the charging station data and the charging vehicle data, and further the target charging power corresponding to the charging vehicle is calculated and distributed according to the charging priority sequence. The target charging power of the charging vehicle can be adjusted according to the charging priority and different charging stations, so that the power distribution is adjusted according to the actual conditions of the charging stations and the charging vehicle, and the charging power utilization rate of the charging station is improved.
In one possible implementation, the charging vehicle data includes a state of charge and a remaining charge duration of the charging vehicle;
the determining a charging priority according to the station attribute, the charging station data and the charging vehicle data includes:
when the station attribute is a fixed station, determining an initial weight value of the charging vehicle according to the state of charge, wherein the fixed station is a charging station where the charging vehicle is fixed;
and determining the charging priority of the charging vehicle according to the initial weight value, the residual charging duration and the state of charge.
According to the technical scheme, the initial weight value of the charging vehicle is determined through the charge state, then the charging priority of the charging vehicle is obtained through combining and calculating the initial weight value, the residual charging time length and the charge state, and the electric quantity demand condition of the vehicle can be divided through the charging priority, so that the rationality of charging power distribution is improved.
In one possible implementation manner, the determining the charging priority of the charging vehicle according to the initial weight value, the remaining charging duration and the state of charge includes:
the charging priority is equal to the sum of the first data and the state of charge, wherein n is a natural number, and the first data sum is expanded by 10 for the initial weight value n The time length of the double and residual charging is enlarged by 10 n-1 Sum after doubling.
According to the technical scheme, the charging priority is formed by combining the charge state and the residual charging time length, and the influence indexes are combined to form one influence index, so that the data comparison process can be improved, the data calculation efficiency is improved, and a data basis is provided for the calculation of the subsequent target charging power.
In one possible implementation, the charging station data includes occupied power for all muzzles within the charging station;
according to the charging priority, calculating the target charging power corresponding to the charging vehicle in turn, including:
determining available power of a charging pile, available power of a distribution group and available power of a station corresponding to the charging vehicle according to the occupied power of all gun ports in the charging station;
the available power of the charging pile is the difference value of the sum of the total power of the charging pile corresponding to the charging vehicle and the occupied power of all charging gun ports in the charging pile; the available power of the distribution group is the difference value of the sum of the total power of the distribution group corresponding to the charging vehicle and the occupied power of all charging piles in the distribution group; the station available power is the difference between the total station power and the sum of the occupied power of all distribution groups in the station;
and the minimum value of the station available power, the distribution group available power and the charging pile available power is the target charging power.
According to the technical scheme, the available power of the station, the available power of the distribution group and the available power of the charging pile corresponding to the charging vehicle are calculated according to the charging priority order, then the minimum value is selected from the three available powers as the target charging power, and the maximum charging power is provided for the charging vehicle under the condition that overload cannot occur, so that the utilization rate of the charging power of the charging station is improved.
In one possible implementation, the charging station data further includes a charging state of a charging muzzle, the charging state including a full load state and a trickle state;
the determining a charging priority according to the station attribute, the charging station data and the charging vehicle data includes:
when the station attribute is an unfixed station, determining the trickle gun mouth number in a trickle state in the charging pile, wherein the unfixed station refers to a charging station where a charging vehicle is unfixed;
and determining the charging priority of the charging pile according to the trickle gun muzzle number and the gun muzzle total number of the charging pile.
According to the technical scheme, when the station attribute of the charging station is the non-fixed station, the charging priority of the charging pile is calculated, and under the condition that the vehicle is not fixed, the charging utilization rate of the charging pile is improved as much as possible, and when the charging gun ports in the trickle state in the charging pile are more, the available power of the charging pile is relatively more, so that the vehicle needing to be charged is preferentially distributed to the charging pile with the larger charging priority, and the charging power utilization rate of the charging pile is improved.
In one possible implementation, the determining the charging priority of the charging pile according to the trickle gun muzzle number and the gun muzzle total number of the charging pile includes:
the charging priority is equal to the trickle muzzle count expansion of 10 m And (3) the sum of the total number of muzzles of the multiplied charging pile and the multiplied charging pile, wherein m is a natural number.
According to the technical scheme, the trickle gun muzzle number and the gun muzzle total number are combined to form the charging priority, and the influence indexes are combined to form one influence index, so that the data comparison process can be improved, the data calculation efficiency is improved, and meanwhile, a data basis is provided for the calculation of the subsequent target charging power.
In one possible implementation manner, the calculating, in sequence, the target charging power corresponding to the charging vehicle according to the charging priority includes:
according to the charging priority, sequentially calculating available power of a charging pile, available power of a station and basic power corresponding to the charging vehicle, wherein the basic power represents average available power of a charging muzzle in a use state in a charging station;
and determining target charging power according to the charging state corresponding to the charging vehicle, the charging pile available power, the station available power and the basic power.
In one possible implementation manner, the determining the target charging power according to the charging state corresponding to the charging vehicle, the charging pile available power, the station available power and the base power includes:
when the charging state of the charging muzzle is a full-load state, the target charging power is the minimum value of the charging pile available power, the station available power and the basic power;
when the charging state of the charging gun port is a trickle state, the required power of the charging vehicle is called, and the required power is the sum of the actual charging power and the increasable power of the charging vehicle;
the target charging power is the minimum value of the charging pile available power, the station available power, the base power and the required power.
In a second aspect of the present application, a charging power regulation system is provided. The system comprises:
the charging system comprises a data acquisition module, a charging station and a charging system, wherein the data acquisition module is used for acquiring station attributes of a charging station, charging station data and charging vehicle data, the charging vehicle data represent various data generated in the charging process of a charging vehicle, and the charging station data represent various data generated in the using process of the charging station;
the priority calculating module is used for determining charging priority according to the station attribute, the charging station data and the charging vehicle data;
and the power determining module is used for calculating and distributing the target charging power corresponding to the charging vehicle according to the charging priority order.
In a third aspect of the application, an electronic device is provided. The electronic device includes: a memory and a processor, the memory having stored thereon a computer program, the processor implementing the method as described above when executing the program.
In a fourth aspect of the application, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements a method as according to the first aspect of the application.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the charging priority of different stations is calculated by acquiring station attributes of the charging station, charging station data and charging vehicle data and then combining the charging station data and the charging vehicle data according to the difference of the station attributes, and the target charging power of the charging vehicle is adjusted according to the charging priority and the different charging stations, so that the adjustment of power distribution according to the actual conditions of the charging stations and the charging vehicle is realized, and the charging power utilization rate of the charging station is further improved;
2. the charging priority is calculated, so that the electricity demand condition of the vehicle can be divided, and the rationality of charging power distribution is improved;
3. when the station attribute of the charging station is a non-fixed station, charging priority of the charging pile is calculated, and charging muzzle in the charging pile is sequentially distributed according to the charging priority of the charging pile, so that the utilization rate of charging power of the charging pile is improved.
Drawings
Fig. 1 is a schematic flow chart of a charging power regulation method provided by the application.
Fig. 2 is a schematic structural diagram of a charging power regulation system provided by the present application.
Fig. 3 is a schematic structural diagram of an electronic device provided by the present application.
In the figure, 200, a charging power regulation system; 201. a data acquisition module; 202. a priority calculation module; 203. a power determination module; 301. a CPU; 302. a ROM; 303. a RAM; 304. an I/O interface; 305. an input section; 306. an output section; 307. a storage section; 308. a communication section; 309. a driver; 310. removable media.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, unless otherwise specified, the term "/" generally indicates that the associated object is an "or" relationship.
Embodiments of the application are described in further detail below with reference to the drawings.
The embodiment of the application provides a charging power regulation and control method, and the main flow of the method is described as follows.
As shown in fig. 1:
step S101: station attributes of the charging station, charging station data, and charging vehicle data are acquired.
Specifically, the charging vehicle data represents various data generated during charging of the charging vehicle, and the charging station data represents various data generated during use of the charging station. The station attributes of the charging station include fixed stations, which are charging stations where the charging vehicle is fixed, and non-fixed stations, which are charging stations where the charging time of the fixed stations is also substantially fixed, e.g., charging stations of buses. The charging station of the bus only provides charging service for the appointed bus, and other foreign vehicles cannot occur. Because buses have a limit on departure time, charging time is also within a certain time frame. An ambulatory station refers to a charging station in which a charging vehicle is not stationary, e.g., a socially oriented charging station, in which any private car or other vehicle can be charged at any time.
The charging station data and the charging vehicle data need to be acquired periodically, regardless of the station attribute of the charging station. The preset time is set according to different station attributes and actual requirements of the charging station.
The charging station data include, but are not limited to, power data, the working state of charging muzzle, and the network state of charging pile, wherein the power data refers to the occupied power of all charging muzzle in the charging station. The working state of the charging muzzle comprises a charging state and an idle state, and when the working state is the charging state, the charging muzzle is connected with a certain vehicle and provides electric energy for the certain vehicle; and when the working state is an idle state, the charging muzzle is not connected with the vehicle. The network state of the charging pile comprises an online state and an offline state, and when the network state of the charging pile is the online state, the network state of the charging pile is normal, and various data of the charging pile can be normally acquired; when the network state of the charging pile is an offline state, the network condition of the charging pile is abnormal, and various data of the charging pile cannot be acquired through the network. The charge vehicle data includes a state of charge of the charge vehicle, which is a ratio of a remaining capacity of the charge vehicle to a capacity of a fully charged state thereof.
In the electric automobile charging process, the charging pile system collects data such as pile end output voltage, current, power, pile body temperature and the like measured by the charging pile system, and the vehicle end system collects and transmits data such as vehicle end required voltage, current, vehicle end measured voltage, current, vehicle battery electric quantity and the like to the charging pile through the battery management system.
Step S102: and determining the charging priority according to the station attribute, the charging station data and the charging vehicle data.
In one embodiment, when the station attribute is a fixed station, the fixed station refers to a charging station where the charging vehicle is fixed; and calculating the charging priority of the charging pile according to the network state of the charging pile and the charge state of the charging vehicle.
Specifically, the charging priority indicates an emergency in which the charging pile charges the charging vehicle. And when the network state of the charging pile is an on-line state, obtaining the charge state of the charging vehicle connected with the charging muzzle on the corresponding charging pile. It can be understood that the state of charge can be obtained in time only when the network state of the charging pile is in an on-line state, so that only the charging priority of the network state in the on-line state is calculated, and for the charging pile in the off-line state at this time, the charging pile needs to be added to the calculation of a new charging priority after the network state is restored to the on-line state.
And calculating an initial weight value according to the acquired state of charge, wherein the initial weight value comprises a first initial value, a second initial value and a third initial value. And when the state of charge is smaller than the preset target electric quantity, a corresponding first initial value is called. The target electric quantity refers to the minimum electric quantity required by the charging vehicle, and a certain charging vehicle will leave at least when the state of charge reaches the target electric quantity, i.e. when the state of charge reaches the target electric quantity, the state of charge is sufficient for the vehicle. For example, for a bus, a target amount of electricity is the amount of electricity required to be sufficient for the bus to run through. The target electric quantity is set according to the actual electric quantity requirement of the charging vehicle. I.e. less than the target charge indicates that the lowest demand of the vehicle cannot be met and that the priority of charging is highest. And when the state of charge is greater than or equal to a preset target electric quantity and the state of charge is less than a trickle threshold value, a corresponding second initial value is called. This indicates that the charge has reached the minimum demand for charging the vehicle but has not entered trickle charge, a priority of charging is required, etc. And when the state of charge is greater than or equal to a preset target electric quantity and the state of charge is greater than or equal to a trickle threshold value, a corresponding third initial value is called. This indicates that the charge has reached the minimum demand for charging the vehicle and has entered trickle charge, with the lowest priority for charging being required. The first initial value is smaller than the second initial value, and the second initial value is smaller than the third initial value; i.e. the smaller the value of the initial weight value, the higher the priority of the charging. The first initial value, the second initial value, and the third initial value are all manually set only for prioritizing charging. A preferred embodiment is that the first initial value, the second initial value and the third initial value are of the same order of magnitude.
The charging priority is the sum of the first data and the state of charge, and the first data and the initial weight are increased by 10 n The time length of the double and residual charging is enlarged by 10 n-1 And the multiplied sum value, wherein the residual charging duration is the time difference between the predicted departure time and the current time of the charging vehicle, and n is a natural number. For example, when the charging vehicle is a bus, the predicted departure time is the departure time of the bus.
The charging priority is calculated through the remaining charging time length, so that the charging emergency degree of the charging vehicle is reflected according to different departure times, and when the remaining electric quantity of the charging vehicle is far less than that of other vehicles, the charging vehicle can be arranged to be charged at a later time due to the fact that the departure time of the charging vehicle is late. The charging vehicles are ordered in priority according to the remaining charging time defined by the departure time, and different charging powers are arranged according to the charging priority, so that the departure time of all the charging vehicles can be ensured to a certain extent, and the charging efficiency is further improved.
It will be appreciated that when n is taken to be 0, the charging priority is the sum of the initial weight value, the remaining charging duration and the state of charge, so that the charging priority represents only the sum of the three data, and the sum of the initial weight value and the remaining charging duration cannot be separated from the state of charge. The state of charge is typically zero to one hundred, so that when m is 3 or more, the sum of the initial weight value and the remaining charge duration can be separated from the state of charge. However, when the value of n goes to infinity, the time for sorting according to the charging priority becomes longer, and the calculation amount increases, so that the value of n is preferably 3.
When the initial weight values are the same, the vehicles with less charge states are allowed to distribute power preferentially, the minimum value in the charge priorities, namely the most urgent charging vehicle, can obtain the maximum charging power in a feasible range, and the charging efficiency of the charging vehicle can be improved to a certain extent.
The trickle threshold is the amount of power at which trickle charge is achieved. Trickle charging, also known as maintenance charging, is used to compensate for the capacity loss of a battery due to self-discharge after it is fully charged. To compensate for self-discharge, the battery is kept charged at a continuous low current, which approximates a fully charged state. Since the battery health status of the charging vehicle is different, the trickle threshold value is also different, the battery health status of the charging vehicle can be obtained, and then the corresponding trickle threshold value is called according to the battery health status.
In another embodiment, when the station attribute is a non-stationary station, the non-stationary station refers to a charging station in which the charging vehicle is not stationary. For a fixed station, the quantity of charging muzzle and charging vehicles is fixed, and only the charging vehicles connected with the charging muzzle are required to be guaranteed to charge with higher efficiency. For the non-fixed station, the number of the charging vehicles is not constant, and the charging time is also uncertain, so that in order to make each charging pile effectively used, the idle charging muzzle in the charging pile corresponding to the charging muzzle in trickle charging is preferentially arranged to a new charging vehicle from the charging muzzle of the charging pile, so that the power waste of the charging pile is reduced, and the charging efficiency of the charging station is further improved.
When the working state of the charging gun port is the charging state and the network state of the charging pile is the on-line state, the charging power of the charging vehicle and the charging state of the charging vehicle can be obtained in time. And determining the charging state of the charging gun corresponding to the charging vehicle according to the charging power of the charging vehicle and the charging state of the charging vehicle, wherein the charging state comprises a full-load state and a trickle state.
It will be appreciated that, every predetermined time, a target charging power is calculated, i.e. the target charging power is calculated periodically. And acquiring a power difference value of the current target charging power of the charging gun corresponding to the charging vehicle and the target charging power calculated in the last period. When the power difference is larger than a preset difference preset value and the charge state is larger than a trickle threshold, the charge state of the charging gun corresponding to the charging vehicle is a trickle state; when the power difference is smaller than or equal to a preset difference preset value or the state of charge is smaller than or equal to a trickle threshold, the charging state of the charging gun corresponding to the charging vehicle is in a full-load state.
According to the charging state of the charging muzzle of the charging pile, calculating the charging priority of the charging pile, wherein the charging priority is 10 enlarged for the number of the charging muzzle in trickle state in the charging pile m The sum of the total number of charging gun openings of the charging piles after doubling, wherein m is a natural number;
and sequentially calculating and distributing the target charging power of the charging muzzle in the charging pile according to the descending order of the charging priority. The charging priority may represent the trickle muzzle number and the muzzle total number in a certain charging, where the trickle muzzle number refers to the number of charging muzzle in a trickle state in a certain charging pile, and when the charging muzzle is in the trickle state, the charging efficiency is low, so that other muzzle of the charging piles needs to be allocated to a new charging vehicle in time, so as to improve the power utilization rate of the charging pile. For example, when all charging muzzles in a charging pile are in trickle state, the charging power of each charging muzzle is very small, and the charging efficiency of a plurality of muzzles does not reach the total power of the charging pile, so that the charging power of the charging pile is not utilized to the maximum.
It will be appreciated that when m takes 0, the charging priority is the sum of the number of charging muzzles in trickle state and the total number of charging muzzles, so that the charging priority represents only the sum of two numbers, and the trickle state of the number of charging muzzles and the total number of charging muzzles cannot be separated. The number of charging muzzles of one charging pile is generally one to four, so that when m is greater than or equal to 1, the trickle state of the number of charging muzzles and the total number of charging muzzles can be separated. However, when the value of m goes to infinity, the time for sorting according to the charging priority becomes longer, and the calculation amount increases, so that the value of m is preferably 1.
Step S103: and according to the charging priority, calculating and distributing the target charging power corresponding to the charging vehicle in sequence.
In an embodiment corresponding to the above-described one embodiment, the target charging power of the charging vehicle is calculated sequentially according to the ascending order of the charging priority, the power data of the charging station, and the operating state of the charging muzzle.
And determining the occupied power corresponding to the charging muzzle according to the working state of the charging muzzle. When the network state of the charging pile is in an on-line state and the working state is in a charging state, the occupied power of the current charging muzzle can be directly obtained. When the network state of the charging pile is in an on-line state and the working state is in an idle state, the occupied power of the charging muzzle is the lowest starting power of the charging muzzle. This is done to ensure that the charging muzzle is available when the charging vehicle is connected to the charging muzzle. The minimum starting power of the charging piles is different due to the difference of the adopted standards. For example, if national standards are adopted, the minimum starting power of the charging muzzle is 5 kw; if European standards are adopted, the minimum starting power of the charging muzzle is 0 kilowatts. When the network state of the charging pile is in an offline state, the current occupied power of the charging muzzle cannot be directly obtained, the historical occupied power of the charging muzzle needs to be obtained, the historical occupied power refers to the latest occupied power when the network state of the charging pile is in an online state, whether the latest occupied power exceeds a time threshold from the current time or not is judged, if the time threshold is exceeded, the duration of the offline state is longer, the charging muzzle is regarded as an idle state, namely the occupied power of the charging muzzle is the lowest starting power; if the time threshold is not exceeded, the charging muzzle is considered to be in a charging state, i.e. the occupied power of the charging muzzle is the latest occupied power.
Calculating station available power, distribution group available power and charging pile available power corresponding to the charging priority according to the power data of the charging station and the occupied power of the charging muzzle; the station available power is the difference between the total station power and the sum of the occupied power of all charging muzzles in the station; the available power of the distribution group is the difference between the total power of the distribution group and the sum of the occupied power of all charging gun ports in the distribution group; the available power of the charging pile is the difference between the total power of the charging pile and the sum of the occupied power of all charging muzzles in the charging pile. After the station available power, the distribution group available power and the charging pile available power are calculated, the state of charge of the charging vehicle corresponding to the charging muzzle is judged, and when the state of charge exceeds the trickle threshold, the required power of the charging vehicle is required to be obtained, wherein the required power of the charging vehicle is the sum of the current actual charging power and the increasable power of the charging vehicle. The above-mentioned increasable power is set manually according to practical circumstances, and is generally set to 10 kw.
And if the required power exists, taking the minimum value of the required power, the station available power, the distribution group available power and the charging pile available power as the target charging power. And if the required power does not exist, taking the minimum value of the station available power, the distribution group available power and the charging pile available power as target charging power.
It is understood that one charging station includes one or more power distribution groups, one power distribution group includes one or more charging posts, and one charging post includes one or more charging muzzles. In practice, due to the difference in physical wiring in the charging stations, the total power of one charging station is not exactly equal to the sum of the total powers of the plurality of distribution groups, and the same is true for the relationship of the total powers between the distribution groups and the charging piles. The minimum of the station available power, the distribution group available power and the charging pile available power is selected to ensure that other charging vehicles are not affected while providing the charging vehicles with maximum charging power within an acceptable range.
And obtaining a target charging power every preset time interval, sending the target power to a charging muzzle, and adjusting the charging power of the charging muzzle to the target charging power.
It will be appreciated that the process of adjusting the target charging power at predetermined intervals occurs when all vehicles are in a charging state, and when a certain vehicle is initially connected to the charging muzzle, an initial charging power is allocated to the vehicle. The initial charging power is obtained by the following method:
and acquiring a gun inserting operation of the charging vehicle, wherein the gun inserting operation refers to an operation that the charging vehicle is connected with a charging gun port at a charging station, namely detecting that a new charging vehicle is connected with the charging gun port. And obtaining available power of the station, available power of the distribution group and available power of the charging pile according to the gun inserting operation, the power data and the working state. When the gun inserting operation is detected, the available power of the charging pile, the available power of the distribution group and the available power of the station where the corresponding charging gun muzzle is located are calculated. And taking the minimum value of the station available power, the distribution group available power and the charging pile available power as initial charging power. The calculation modes of the charging pile available power, the distribution group available power and the station available power are the same as those in step S102, and are not described here.
In an embodiment corresponding to the other embodiment, the charging piles having the largest number of muzzles in the trickle state are preferentially allocated according to the descending order of the charging priority, and when the number of muzzles in the trickle state is the same, the charging piles having the largest number of muzzles are preferentially allocated. And calculating the available power of the charging pile, the available power of the station and the basic power, wherein the basic power=the available power of the station/the number of charging muzzle in the charging station, and the charging muzzle is in a charging state. When the charging state of the charging muzzle is a full-load state, taking the minimum value of the charging pile available power, the station available power and the basic power as target charging power; and when the charging state of the charging muzzle is in a trickle state, the required power of the charging vehicle corresponding to the charging muzzle is called, and the minimum value among the available power of the charging pile, the available power of the station, the basic power and the required power is taken as the target charging power.
It can be understood that the target charging powers are sequentially calculated according to the descending order of the charging priorities, that is, the target charging powers of the charging muzzles in the charging piles with a large number of charging muzzles in the trickle state are calculated first, and for a certain charging pile, the target charging powers of the charging muzzles are calculated according to the charging states by judging the charging states of the charging muzzles, so that the calculation efficiency of the target charging powers can be improved. For example, one charging peg includes an A muzzle, a B muzzle, and a C muzzle, where A muzzle is the muzzle in a trickle state, and the sum of the target charging powers of the A muzzle, B muzzle, and C muzzle equals the total power of the charging peg. If the charging state of the charging muzzle is not judged, the target charging power of the A muzzle, the B muzzle and the C muzzle are sequentially calculated, and the situation that the total power of the charging pile is larger than the sum of the target charging powers of the A muzzle, the B muzzle and the C muzzle, namely the remaining power exists in the charging pile, is needed to be distributed again, namely the remaining power is distributed to three muzzle in an average mode, but because the power needed by the A muzzle is enough, the power distributed to the A muzzle in a sharing mode all the time remains, the remaining power exists, and then the calculation is carried out in a halving cycle until the sum of the target charging powers of the A muzzle, the B muzzle and the C muzzle is equal to the total power of the charging pile. If the charging state of the charging muzzle is judged and classified according to the charging state, namely, target charging power of the A muzzle, the B muzzle and the C muzzle is calculated, and if the power of the charging pile is remained, the remained power is directly divided into the muzzle in a full-load state, namely, the remained power is divided into the B muzzle and the C muzzle in a sharing mode. As can be seen from the above description, when the state of charge of the charging muzzle is determined, the power calculation of the three muzzle can be kept within two times, and if the state of the charging muzzle is not determined, the time complexity and the space complexity of calculating the target charging power can be greatly increased.
The meaning and calculation method of the charging pile available power, the station available power and the required power are the same as those in step S102, and are not described here.
Referring to fig. 2, a charging power regulation system 200 according to an embodiment of the present application includes:
a data acquisition module 201, configured to acquire station attributes of a charging station, charging station data, and charging vehicle data, where the charging vehicle data represents various data generated by a charging vehicle during charging, and the charging station data represents various data generated by the charging station during use;
a priority calculation module 202 for determining a charging priority according to the station attribute, the charging station data, and the charging vehicle data;
the power determining module 203 is configured to calculate and allocate a target charging power corresponding to the charging vehicle according to the charging priority order.
The data obtaining module 201 is configured to execute step S101 of the charging power regulation method, the priority calculating module 202 is configured to execute step S102 of the charging power regulation method, the power determining module 203 is configured to execute step S103 of the charging power regulation method, and a specific operation process of each module may refer to a specific process of a corresponding step of the charging power regulation method.
It will be clear to those skilled in the art that, for convenience and brevity of description, reference may be made to the corresponding process in the foregoing method embodiment for the specific working process of the described module, which is not described herein again.
The embodiment of the application discloses electronic equipment. Referring to fig. 3, the electronic apparatus includes a central processing unit (Central Processing Unit, CPU) 301 that can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) 302 or a program loaded from a storage section 307 into a random access Memory (Random Access Memory, RAM) 303. In the RAM 303, various programs and data required for the system operation are also stored. The CPU 301, ROM 302, and RAM 303 are connected to each other by a bus. An Input/Output (I/O) interface 304 is also connected to the bus.
The following components are connected to the I/O interface 304: an input section 305 including a keyboard, a mouse, and the like; an output section 306 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and the like, and a speaker, and the like; a storage portion 307 including a hard disk and the like; and a communication section 308 including a network interface card such as a local area network (Local Area Network, LAN) card, a modem, or the like. The communication section 308 performs communication processing via a network such as the internet. A driver 309 is also connected to the I/O interface 304 as needed. A removable medium 310 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed on the drive 309 as needed, so that a computer program read out therefrom is installed into the storage section 307 as needed.
In particular, the process described above with reference to flowchart fig. 1 may be implemented as a computer software program according to an embodiment of the application. For example, embodiments of the application include a computer program product comprising a computer program embodied on a machine-readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such embodiments, the computer program may be downloaded and installed from a network via the communication portion 308, and/or installed from the removable media 310. The above-described functions defined in the apparatus of the present application are performed when the computer program is executed by a Central Processing Unit (CPU) 301.
The computer readable medium shown in the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present application, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, radio Frequency (RF), and the like, or any suitable combination of the foregoing.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application is not limited to the specific combinations of the features described above, but also covers other embodiments which may be formed by any combination of the features described above or their equivalents without departing from the spirit of the application. Such as the above-mentioned features and the technical features having similar functions (but not limited to) applied for in the present application are replaced with each other.

Claims (10)

1. A charging power regulation method, characterized by comprising:
acquiring station attributes of a charging station, charging station data and charging vehicle data, wherein the charging vehicle data represents various data generated by a charging vehicle in a charging process, and the charging station data represents various data generated by the charging station in a using process;
determining a charging priority according to the station attribute, the charging station data and the charging vehicle data;
and calculating and distributing the target charging power corresponding to the charging vehicle according to the charging priority order.
2. The charge power regulation method of claim 1, wherein the charge vehicle data includes a state of charge and a remaining charge duration of the charge vehicle;
the determining a charging priority according to the station attribute, the charging station data and the charging vehicle data includes:
when the station attribute is a fixed station, determining an initial weight value of the charging vehicle according to the state of charge, wherein the fixed station is a charging station where the charging vehicle is fixed;
and determining the charging priority of the charging vehicle according to the initial weight value, the residual charging duration and the state of charge.
3. The charge power regulation method according to claim 2, wherein the determining the charge priority of the charge vehicle according to the initial weight value, the remaining charge duration, and the state of charge includes:
the charging priority is equal to the sum of the first data and the state of charge, wherein n is a natural number, and the first data sum is expanded by 10 for the initial weight value n The time length of the double and residual charging is enlarged by 10 n-1 Sum after doubling.
4. The charging power regulation method of claim 1, wherein the charging station data comprises occupied power of all muzzles in the charging station;
according to the charging priority, calculating the target charging power corresponding to the charging vehicle in turn, including:
determining available power of a charging pile, available power of a distribution group and available power of a station corresponding to the charging vehicle according to the occupied power of all gun ports in the charging station;
the available power of the charging pile is the difference value of the sum of the total power of the charging pile corresponding to the charging vehicle and the occupied power of all charging gun ports in the charging pile; the available power of the distribution group is the difference value of the sum of the total power of the distribution group corresponding to the charging vehicle and the occupied power of all charging piles in the distribution group; the station available power is the difference between the total station power and the sum of the occupied power of all distribution groups in the station;
and the minimum value of the station available power, the distribution group available power and the charging pile available power is the target charging power.
5. The charging power regulation method of claim 1, wherein the charging station data further comprises a charging state of a charging muzzle, the charging state comprising a full load state and a trickle state;
the determining a charging priority according to the station attribute, the charging station data and the charging vehicle data includes:
when the station attribute is a station with an unfixed charging vehicle, determining the trickle gun mouth number in a trickle state in the charging pile;
and determining the charging priority of the charging pile according to the trickle gun muzzle number and the gun muzzle total number of the charging pile.
6. The charging power regulation method of claim 5, wherein the determining the charging priority of the charging stake based on the trickle gun count and the gun count of the charging stake comprises:
the charging priority is equal to the trickle muzzle count expansion of 10 m And (3) the sum of the total number of muzzles of the multiplied charging pile and the multiplied charging pile, wherein m is a natural number.
7. The method for regulating and controlling charging power according to claim 5, wherein sequentially calculating the target charging power corresponding to the charging vehicle according to the charging priority comprises:
according to the charging priority, sequentially calculating available power of a charging pile, available power of a station and basic power corresponding to the charging vehicle, wherein the basic power represents average available power of a charging muzzle in a use state in a charging station;
and determining target charging power according to the charging state corresponding to the charging vehicle, the charging pile available power, the station available power and the basic power.
8. The charging power regulation method of claim 7, wherein the determining the target charging power according to the charging state corresponding to the charging vehicle, the charging pile available power, the station available power, and the base power comprises:
when the charging state of the charging muzzle is a full-load state, the target charging power is the minimum value of the charging pile available power, the station available power and the basic power;
when the charging state of the charging gun port is a trickle state, the required power of the charging vehicle is called, and the required power is the sum of the actual charging power and the increasable power of the charging vehicle;
the target charging power is the minimum value of the charging pile available power, the station available power, the base power and the required power.
9. A charging power regulation system, comprising:
the charging system comprises a data acquisition module, a charging station and a charging system, wherein the data acquisition module is used for acquiring station attributes of a charging station, charging station data and charging vehicle data, the charging vehicle data represent various data generated in the charging process of a charging vehicle, and the charging station data represent various data generated in the using process of the charging station;
the priority calculating module is used for determining charging priority according to the station attribute, the charging station data and the charging vehicle data;
and the power determining module is used for calculating and distributing the target charging power corresponding to the charging vehicle according to the charging priority order.
10. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program capable of being loaded by the processor and performing the method according to any of claims 1 to 7.
CN202310862922.2A 2023-07-13 2023-07-13 Charging power regulation and control method and system and electronic equipment Pending CN116729186A (en)

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Application Number Priority Date Filing Date Title
CN202310862922.2A CN116729186A (en) 2023-07-13 2023-07-13 Charging power regulation and control method and system and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310862922.2A CN116729186A (en) 2023-07-13 2023-07-13 Charging power regulation and control method and system and electronic equipment

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