Charging power control method, system and electronic equipment

Abstract

The present invention relates to a charging power control method, system, and electronic device. The method comprises obtaining the station attributes, charging station data, and charging vehicle data of a charging station, wherein the charging vehicle data represents various data generated by the charging vehicle during the charging process, and the charging station data represents various data generated by the charging station during use; determining charging priorities based on the station attributes, charging station data, and charging vehicle data; and calculating and allocating target charging powers corresponding to the charging vehicles according to the charging priority order. This method solves the problem of being unable to adjust power allocation based on the actual conditions of the charging vehicles, and has the effect of improving the charging power utilization rate of the charging station.

Description

Technical Field

[0001] The present application relates to the technical field of charging control, and in particular to a charging power control method, system and electronic equipment. Background Art

[0002] With the rapid development of new energy technologies, electric vehicles have become the preferred choice for most people, and the coverage of charging stations configured for electric vehicle charging is also increasing. However, currently, when a charging station supplies power to multiple charging stations simultaneously, the power supply pressure on the charging station's distribution box increases, and the charging station power is insufficient to support the charging power of each charging station, resulting in power outages. To alleviate the power outage problem, a "ordered charging" power adjustment scheme has been proposed. When the charging station load exceeds a certain amount, the power supply to the charging terminal is stopped according to the charging connection time. Although this method can regulate the charging station load, the frequent start and stop control will cause the equipment to increase the current, which may damage the charging terminal and the power supply circuit.

[0003] The above-mentioned related technical solutions have the following defects: they cannot adjust the power distribution in real time according to the actual situation of the charging vehicles, resulting in overload of the charging station, and then the power supply of the charging station is interrupted and unable to supply power, resulting in low charging power utilization of the charging station. Summary of the Invention

[0004] In order to improve the problem of low charging power utilization in charging stations, the present application provides a charging power control method, system and electronic equipment.

[0005] In a first aspect of the present application, a charging power control method is provided. The method comprises:

[0006] Obtaining the charging station's site attributes, charging station data, and charging vehicle data, wherein the charging vehicle data represents various data generated by the charging vehicle during the charging process, and the charging station data represents various data generated by the charging station during use;

[0007] Determining a charging priority based on the station attributes, the charging station data, and the charging vehicle data;

[0008] Calculate and allocate target charging powers corresponding to the charging vehicles according to the charging priority order.

[0009] The above technical solution demonstrates that by acquiring the charging station's attributes, charging station data, and charging vehicle data, the charging priorities of different charging stations are calculated based on the different station attributes and combined with the charging station data and charging vehicle data. The target charging power for each charging vehicle is then calculated and allocated based on the charging priority order. The target charging power for each charging vehicle can be adjusted based on the charging priority and the different charging stations, enabling power allocation to be tailored to the actual conditions of the charging station and the charging vehicle, thereby improving the charging power utilization of the charging station.

[0010] In one possible implementation, the charging vehicle data includes the state of charge and remaining charging time of the charging vehicle;

[0011] The determining of the charging priority according to the station attributes, the charging station data, and the charging vehicle data includes:

[0012] When the station attribute is a fixed station, determining the initial weight value of the charging vehicle according to the state of charge, the fixed station refers to a charging station where the charging vehicle is fixed;

[0013] The charging priority of the charging vehicle is determined according to the initial weight value, the remaining charging time and the state of charge.

[0014] From the above technical solution, it can be seen that the initial weight value of the charging vehicle is determined by the charge state, and then the charging priority of the charging vehicle is calculated by combining the initial weight value, the remaining charging time and the charge state. Through the charging priority, the vehicle's power demand can be divided, thereby improving the rationality of charging power allocation.

[0015] In a possible implementation, determining the charging priority of the charging vehicle according to the initial weight value, the remaining charging time, and the state of charge includes:

[0016] 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 is the initial weight value expanded by 10 n After the time is doubled, the remaining charging time is extended by 10 n-1 The sum after multiplication.

[0017] From the above technical solutions, it can be seen that by combining the state of charge and the remaining charging time to form a charging priority, and combining multiple influencing indicators to form an influencing indicator, the data comparison process can be improved, the efficiency of data calculation can be improved, and at the same time, a data basis can be provided for the subsequent calculation of the target charging power.

[0018] In one possible implementation, the charging station data includes the occupied power of all gun muzzles in the charging station;

[0019] The step of sequentially calculating the target charging powers corresponding to the charging vehicles according to the charging priorities includes:

[0020] Determine the available power of the charging pile, the available power of the distribution group, and the available power of the station corresponding to the charging vehicle based on the occupied power of all guns in the charging station;

[0021] The available power of the charging pile is the difference between the total power of the charging pile corresponding to the charging vehicle and the sum of the occupied power of all charging guns in the charging pile; the available power of the distribution group is the difference between the total power of the distribution group corresponding to the charging vehicle and the sum of the occupied power of all charging piles in the distribution group; the available power of the station is the difference between the total power of the station and the sum of the occupied power of all distribution groups in the station;

[0022] The minimum value of the station available power, the distribution group available power and the charging pile available power is the target charging power.

[0023] From the above technical solution, it can be seen that 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, and then the minimum value of the above three available powers is selected as the target charging power. Without causing overload, the maximum charging power is provided to the charging vehicle, thereby improving the utilization rate of the charging power of the charging station.

[0024] In one possible implementation, the charging station data further includes a charging status of the charging gun, where the charging status includes a full load state and a trickle state;

[0025] The determining of the charging priority according to the station attributes, the charging station data, and the charging vehicle data includes:

[0026] When the station attribute is a non-fixed station, determining the number of trickle guns in the trickle state in the charging pile, wherein the non-fixed station refers to a charging station where the charging vehicle is not fixed;

[0027] The charging priority of the charging pile is determined according to the number of the trickle muzzles and the total number of muzzles of the charging pile.

[0028] From the above technical solution, it can be seen that when the site attribute of the charging station is a non-fixed site, the charging priority of the charging pile is calculated. When the vehicle is not fixed, the charging utilization rate of the charging pile should be improved as much as possible. When the charging pile has more charging guns in a trickle state, the charging pile has relatively more available power, so the vehicles that need to be charged should be assigned to the charging piles with higher charging priorities in priority, so as to improve the utilization rate of the charging power of the charging pile.

[0029] In a possible implementation, determining the charging priority of the charging pile according to the number of the trickle muzzles and the total number of muzzles of the charging pile includes:

[0030] The charging priority is equal to the number of trickle muzzles expanded by 10 m The sum of the total number of muzzles of the charging pile after multiplication, where m is a natural number.

[0031] From the above technical solutions, it can be seen that by combining the number of trickle muzzles and the total number of muzzles to form the charging priority, and combining multiple influencing indicators to form one influencing indicator, the data comparison process can be improved, the efficiency of data calculation can be improved, and at the same time, a data basis can be provided for the subsequent calculation of the target charging power.

[0032] In one possible implementation, sequentially calculating the target charging powers corresponding to the charging vehicles according to the charging priorities includes:

[0033] According to the charging priority, the available power of the charging pile, the available power of the station and the basic power corresponding to the charging vehicle are calculated in sequence. The basic power represents the average available power of the charging guns in use in the charging station;

[0034] The target charging power is determined according to the charging state corresponding to the charging vehicle, the available power of the charging pile, the available power of the station and the basic power.

[0035] In one possible implementation, determining the target charging power according to the charging state of the charging vehicle, the available power of the charging pile, the available power of the station, and the basic power includes:

[0036] When the charging state of the charging gun is at full load, the target charging power is the minimum value among the available power of the charging pile, the available power of the station, and the basic power;

[0037] When the charging state of the charging gun is in a trickle state, the required power of the charging vehicle is called up, and the required power is the sum of the actual charging power of the charging vehicle and the increaseable power;

[0038] The target charging power is the minimum value of the available power of the charging pile, the available power of the station, the basic power and the required power.

[0039] In a second aspect of the present application, a charging power control system is provided. The system includes:

[0040] A data acquisition module, configured to acquire the charging station's attributes, charging station data, and charging vehicle data. The charging vehicle data represents various data generated by the charging vehicle during the charging process, and the charging station data represents various data generated by the charging station during use.

[0041] a priority calculation module, configured to determine a charging priority based on the station attributes, the charging station data, and the charging vehicle data;

[0042] The power determination module is used to calculate and allocate the target charging power corresponding to the charging vehicle according to the charging priority order.

[0043] In a third aspect of the present application, an electronic device is provided, comprising: a memory and a processor, wherein the memory stores a computer program, and the processor implements the above method when executing the program.

[0044] In a fourth aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the method according to the first aspect of the present application is implemented.

[0045] In summary, this application includes at least one of the following beneficial technical effects:

[0046] 1. By obtaining the charging station attributes, charging station data, and charging vehicle data, the charging priority of different charging stations is calculated based on the different station attributes. The target charging power of the charging vehicle is adjusted according to the charging priority and different charging stations. This achieves the adjustment of power allocation based on the actual situation of the charging station and charging vehicle, thereby improving the charging power utilization rate of the charging station.

[0047] 2. By calculating charging priorities, the power requirements of vehicles can be divided, thereby improving the rationality of charging power allocation;

[0048] 3. When the charging station is a non-fixed station, the charging priorities of the charging piles are calculated and the charging guns in the charging piles are allocated in sequence according to the charging priorities of the charging piles, so as to improve the utilization rate of the charging power of the charging piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a flow chart of the charging power control method provided in this application.

[0050] Figure 2 It is a structural diagram of the charging power control system provided in this application.

[0051] Figure 3 It is a structural diagram of the electronic device provided in this application.

[0052] In the figure, 200, charging power control system; 201, data acquisition module; 202, priority calculation module; 203, power determination module; 301, CPU; 302, ROM; 303, RAM; 304, I / O interface; 305, input part; 306, output part; 307, storage part; 308, communication part; 309, drive; 310, removable medium. DETAILED DESCRIPTION

[0053] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document, unless otherwise specified, generally indicates an "or" relationship between the related objects.

[0055] The embodiments of the present application are described in further detail below with reference to the accompanying drawings.

[0056] An embodiment of the present application provides a charging power control method, and the main process of the method is described as follows.

[0057] like Figure 1 As shown:

[0058] Step S101: Acquire the charging station attributes, charging station data, and charging vehicle data of the charging station.

[0059] Specifically, the above-mentioned charging vehicle data represents various data generated by the charging vehicle during the charging process, and the above-mentioned charging station data represents various data generated by the charging station during use. The site attributes of the charging station include fixed sites and non-fixed sites. Fixed sites refer to charging stations where charging vehicles are fixed, and the charging time of fixed sites is also basically fixed, such as bus charging stations. Bus charging stations only provide charging services for designated buses, and other external vehicles will not appear. Since buses are restricted by departure time, the charging time is also within a certain time range. Non-fixed sites refer to charging stations where charging vehicles are not fixed, such as charging stations for the public, where any private car or other vehicle can charge at any time.

[0060] Regardless of the charging station's attributes, the above charging station data and charging vehicle data must be obtained regularly. The above preset time is set according to the different station attributes and the actual needs of the charging station.

[0061] The above-mentioned charging station data includes but is not limited to power data, the working status of the charging gun, and the network status of the charging pile. The power data refers to the occupied power of all charging guns in the charging station. The working status of the above-mentioned charging gun includes charging status and idle status. When the working status is charging status, it means that the charging gun has been connected to a vehicle and provides it with power; when the working status is idle status, it means that the charging gun is not connected to a vehicle. The charging pile network status includes online status and offline status. When the charging pile network status is online, it means that the network status of the charging pile is normal and the various data of the charging pile can be obtained normally; when the charging pile network status is offline, it means that the network status of the charging pile is abnormal and the various data of the charging pile cannot be obtained through the network. The above-mentioned charging vehicle data includes the charging status of the charging vehicle. The charging status of the above-mentioned charging vehicle refers to the ratio of the remaining capacity of the charging vehicle to its capacity in a fully charged state.

[0062] During the charging process of electric vehicles, the charging pile system collects data such as the pile-end output voltage, current, power, pile body temperature, etc. measured by itself, and the vehicle-end system collects and transmits data such as the vehicle-end required voltage, current, vehicle-end measured voltage, current, vehicle battery power, etc. to the charging pile through the battery management system communication.

[0063] Step S102: Determine the charging priority based on the station attributes, charging station data and charging vehicle data.

[0064] 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; the charging priority of the charging pile is calculated according to the network status of the charging pile and the charge state of the charging vehicle.

[0065] Specifically, the aforementioned charging priority level indicates the emergency situation of the vehicle being charged at the charging pile. When the charging pile's network status is online, the charge status of the vehicle connected to the charging gun at the corresponding charging pile is obtained. It is understood that the aforementioned charge status can only be obtained in a timely manner when the charging pile's network status is online. Therefore, only the charging priority level when the network status is online is calculated here. Charging piles that are currently offline will be added to the new charging priority calculation after the network status returns to online.

[0066] Based on the acquired state of charge (SOC), initial weight values ​​are calculated. These initial weight values ​​include a first initial value, a second initial value, and a third initial value. When the SOC is less than a preset target charge, the corresponding first initial value is retrieved. The target charge refers to the minimum charge required by the charging vehicle. A charging vehicle must reach at least the target charge before leaving. That is, when the SOC reaches the target charge, the charge is sufficient for the vehicle. For example, for a bus, the target charge is sufficient for the bus to complete its journey. The target charge is set based on the actual power requirements of the charging vehicle. A charge less than the target charge indicates that the vehicle's minimum requirements cannot be met, and charging is prioritized. When the SOC is greater than or equal to the preset target charge and less than the trickle charge threshold, the corresponding second initial value is retrieved. This indicates that the vehicle's minimum charge requirement has been met but trickle charging has not yet begun, and charging is prioritized to a medium level. When the SOC is greater than or equal to the preset target charge and greater than or equal to the trickle charge threshold, the corresponding third initial value is retrieved. This indicates that the vehicle's battery capacity has reached the minimum required and has entered trickle charging, requiring the lowest priority. The first initial value is smaller than the second initial value, which is smaller than the third initial value; that is, the smaller the initial weight value, the higher the charging priority. The first, second, and third initial values ​​are all manually set and are used solely to distinguish charging priorities. A preferred embodiment is that the first, second, and third initial values ​​are of the same order of magnitude.

[0067] The charging priority is the sum of the first data and the state of charge, and the first data is the initial weight value expanded by 10. n After the time is doubled, the remaining charging time is extended by 10 n-1 The remaining charging time is the difference between the estimated departure time of the charging vehicle and the current time, where n is a natural number. For example, if the charging vehicle is a bus, the estimated departure time is the bus's departure time.

[0068] The calculation of charging priority based on the remaining charging time is designed to reflect the charging urgency of the charging vehicle according to different departure times. If a charging vehicle has significantly less remaining power than other vehicles, but its departure time is later, it can be scheduled for charging later. By prioritizing charging vehicles based on the remaining charging time within the departure time limit and assigning different charging powers based on charging priority, the departure time of all charging vehicles can be guaranteed to a certain extent, thereby improving charging efficiency.

[0069] It is understandable that when n is 0, the charging priority is the sum of the initial weight value, the remaining charging time, and the state of charge. In this way, the charging priority only represents the sum of the three data points, and the sum of the initial weight value and the remaining charging time cannot be separated from the state of charge. The state of charge value generally ranges from 0 to 100, so when m is greater than or equal to 3, the sum of the initial weight value and the remaining charging time can be separated from the state of charge. However, when the value of n tends to infinity, the time to sort according to the charging priority will become longer, which increases the amount of calculation, so the preferred value of n is 3.

[0070] The above charging priority means that when the initial weight values ​​are the same, vehicles with a lower state of charge are given priority in allocating power. This allows the vehicle with the lowest charging priority, i.e., the vehicle that needs charging most urgently, to obtain the maximum charging power within the feasible range, which can improve the charging efficiency of the charging vehicles to a certain extent.

[0071] The trickle current threshold above refers to the charge level at which trickle charging is reached. Trickle charging, also known as maintenance charging, is used to compensate for capacity loss caused by self-discharge after a full charge. To compensate for self-discharge, a continuous low-current charge is applied to keep the battery at a near-fully charged state. The trickle current threshold varies depending on the battery health of the vehicle being charged. The trickle current threshold can be determined by obtaining the battery health status of the vehicle being charged and then adjusting the corresponding trickle current threshold accordingly.

[0072] In another embodiment, when the above-mentioned station attribute is a non-fixed station, the above-mentioned non-fixed station refers to a charging station where the charging vehicle is not fixed. For a fixed station, the number of charging guns and charging vehicles is fixed, and it is only necessary to ensure that the charging vehicles connected to the charging guns can be charged at a high efficiency. For a non-fixed station, the number of charging vehicles is uncertain, and the charging time is also uncertain. In order to ensure that each charging pile is effectively used, it is necessary to start from the charging gun of the charging pile and give priority to arranging the idle charging guns in the charging pile corresponding to the charging gun in trickle charging to the new charging vehicle, so as to reduce the power waste of the charging pile and thereby improve the charging efficiency of the charging station.

[0073] When the charging gun is in the charging state and the charging pile network status is online, the charging power and charge state of the charging vehicle can be obtained in a timely manner. The charging state of the charging gun corresponding to the charging vehicle is determined based on the charging power and charge state of the charging vehicle. The charging state includes full load state and trickle state.

[0074] It can be understood that a target charging power will be calculated at every preset time interval, that is, the target charging power will be calculated periodically. The power difference between the current target charging power of the charging gun corresponding to the charging vehicle and the target charging power calculated in the previous cycle is obtained. When the above power difference is greater than the preset difference preset value and the charge state is greater than the trickle threshold, the charging state of the charging gun corresponding to the charging vehicle is a trickle state; when the above power difference is less than or equal to the preset difference preset value or the charge state is less than or equal to the trickle threshold, the charging state of the charging gun corresponding to the charging vehicle is a full load state.

[0075] The charging priority of the charging pile is calculated based on the charging status of the charging gun of the charging pile. The above charging priority is the number of charging guns in the trickle state in the charging pile increased by 10 m The sum of the total number of charging guns of the charging pile after multiplication, where m is a natural number;

[0076] According to the descending order of the above-mentioned charging priorities, the target charging power of the charging nozzles in the above-mentioned charging piles is calculated and allocated in sequence. The above-mentioned charging priority can represent the number of trickle nozzles and the total number of nozzles in a certain charging pile. The above-mentioned trickle nozzle number refers to the number of charging nozzles in a trickle state in a certain charging pile. When the charging nozzle is in the trickle state, the charging efficiency is very low, so it is necessary to promptly allocate the other nozzles of these charging piles to new charging vehicles to improve the power utilization of the charging pile. For example, when all the charging nozzles in a certain charging pile are in the trickle state, the charging power of each charging nozzle is very small, and the charging efficiency of multiple nozzles does not reach the total power of the charging pile, resulting in the charging power of the charging pile not being maximized.

[0077] It is understandable that when m is 0, the charging priority is the sum of the number of charging nozzles in trickle state and the total number of charging nozzles. In this way, the charging priority only represents the sum of the two quantities, and the number of charging nozzles in trickle state and the total number of charging nozzles cannot be separated. A charging pile generally has one to four charging nozzles, so when m is greater than or equal to 1, the number of charging nozzles in trickle state and the total number of charging nozzles can be separated. However, when the value of m tends to infinity, the time for sorting according to charging priority will become longer, which will increase the amount of calculation, so the preferred value of m is 1.

[0078] Step S103: Calculate and allocate target charging powers corresponding to charging vehicles in sequence according to charging priorities.

[0079] In an embodiment corresponding to the above-mentioned embodiment, the target charging power of the charging vehicle is calculated in sequence according to the ascending order of the charging priority, the power data of the charging station and the working status of the charging gun.

[0080] According to the working status of the above-mentioned charging gun, the occupied power corresponding to the above-mentioned charging gun is determined. When the network status of the charging pile is online and the working status is charging, the occupied power of the current charging gun can be directly obtained. When the network status of the charging pile is online and the working status is idle, the occupied power of the charging gun is the minimum starting power of the charging gun. This is done to ensure that the charging gun is available when the charging vehicle is connected to the charging gun. Due to different standards adopted, the minimum starting power of the charging pile is different. For example, if the national standard is adopted, the minimum starting power of the charging gun is 5 kilowatts; if the European standard is adopted, the minimum starting power of the charging gun is 0 kilowatts. When the charging pile network status is offline, the current occupied power of the charging gun cannot be directly obtained. It is necessary to obtain the historical occupied power of the charging gun. The above historical occupied power refers to the latest occupied power when the charging pile network status is online, and judge whether the above latest occupied power exceeds the time threshold from the current time. If it exceeds the time threshold, it means that the offline state lasts for a long time, so the charging gun is regarded as idle, that is, the occupied power of the charging gun is the minimum starting power; if it does not exceed the time threshold, it means that the offline state lasts for a short time, so the charging gun is regarded as charging, that is, the occupied power of the charging gun is the above latest occupied power.

[0081] Based on the power data of the charging station and the occupied power of the above-mentioned charging gun port, the available power of the station, the available power of the distribution group, and the available power of the charging pile corresponding to the above-mentioned charging priority are calculated; the available power of the station is the difference between the total power of the station and the sum of the occupied power of all charging gun ports 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 gun ports in the charging pile. After calculating the available power of the station, the available power of the distribution group, and the available power of the charging pile, it is also necessary to judge the charge state of the charging vehicle corresponding to the above-mentioned charging gun port. When the charge state exceeds the trickle threshold, it is also necessary to obtain the required power of the charging vehicle. The required power of the charging vehicle is the sum of the current actual charging power of the charging vehicle and the increaseable power. The above-mentioned increaseable power is manually set according to the actual situation, and is generally set to 10 kilowatts.

[0082] If there is a power demand, the minimum of the power demand, the station available power, the distribution group available power, and the charging pile available power is used as the target charging power. If there is no power demand, the minimum of the station available power, the distribution group available power, and the charging pile available power is used as the target charging power.

[0083] It's understandable that a charging station consists of one or more distribution groups, a distribution group consists of one or more charging piles, and a charging pile consists of one or more charging guns. In practice, due to variations in the physical wiring within a charging station, the total power of a charging station isn't strictly equal to the sum of the total power of the multiple distribution groups. The same applies to the relationship between the total power of a distribution group and the charging piles. Therefore, the minimum value among the station's available power, the distribution group's available power, and the charging pile's available power must be selected to ensure that other charging vehicles are not affected while providing the maximum charging power within their acceptable range.

[0084] A target charging power will be obtained at every preset time interval, and the above target power will be sent to the charging muzzle, and the charging power of the charging muzzle will be adjusted to the target charging power.

[0085] It is understood that the process of adjusting the target charging power at each preset interval occurs when all vehicles are in the charging state. When a vehicle is first connected to the charging gun, an initial charging power will be assigned to the vehicle. The above initial charging power is obtained by the following method:

[0086] Obtain the plug-in operation of the charging vehicle. The plug-in operation refers to the operation of connecting the charging vehicle to the charging gun port at the charging station, that is, detecting that a new charging vehicle is connected to the charging gun port. According to the plug-in operation, the power data and the working status, the station available power, the distribution group available power and the charging pile available power are obtained. When the plug-in operation is detected, the charging pile available power, the distribution group available power and the station available power of the corresponding charging gun port are calculated. The minimum value of the above-mentioned station available power, the above-mentioned distribution group available power and the above-mentioned charging pile available power is used as the initial charging power. The calculation method of the charging pile available power, the distribution group available power and the station available power is the same as that in step S102, and will not be repeated here.

[0087] In an embodiment corresponding to the other embodiment described above, the charging piles with the largest number of nozzles in the trickle state are allocated first according to the descending order of the charging priority. When the number of nozzles in the trickle state is the same, the charging piles with the largest number of nozzles are allocated first. The available power of the charging pile, the available power of the station, and the basic power are calculated. The basic power = the available power of the station / the number of charging nozzles in the charging state in the charging station. When the charging state of the charging nozzle is at full load, the minimum value among the available power of the charging pile, the available power of the station, and the basic power is used as the target charging power. When the charging state of the charging nozzle is in the trickle state, the required power of the charging vehicle corresponding to the charging nozzle is retrieved, 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 used as the target charging power.

[0088] It is understood that the target charging power is calculated sequentially in descending order of charging priority. That is, the target charging power of the charging guns in the charging pile with a large number of charging guns in the trickle state is calculated first. For a particular charging pile, the charging state of the charging guns is determined and the target charging power of the charging guns is calculated based on the charging state. This can improve the calculation efficiency of the target charging power. For example, a charging pile includes guns A, B, and C, where gun A is the gun in the trickle state, and the sum of the target charging powers of guns A, B, and C equals the total power of the charging pile. If the charging status of the charging gun is not determined, and the target charging power of gun A, gun B, and gun C is calculated in sequence, the total power of the charging pile will be greater than the sum of the target charging power of gun A, gun B, and gun C, that is, the charging pile has surplus power. In this case, the surplus power of the charging pile needs to be redistributed, that is, the surplus power is evenly distributed to the three guns. However, since the power required by gun A is sufficient, the power divided equally among gun A will be left over each time, and there will always be surplus power. Then the calculation will be in a cycle of equal division until the sum of the target charging power of gun A, gun B, and gun C equals the total power of the charging pile. If the charging status of the charging gun is determined and classified according to the charging status, that is, the target charging power of gun A, gun B, and gun C is then calculated, if the charging pile still has surplus power, the surplus power will be directly divided equally among the guns in the full load state, that is, among guns B and C. From the above description, it can be seen that when judging the charging status of the charging muzzle, the power calculation of the three muzzles can be kept within two times. If the status of the charging muzzle is not judged, the time complexity and space complexity of calculating the target charging power will be greatly increased.

[0089] The meanings and calculation methods of the above-mentioned charging pile available power, station available power and required power are the same as those in step S102 and are not repeated here.

[0090] The present application embodiment provides a charging power control system 200, referring to Figure 2 , the charging power control system 200 includes:

[0091] Data acquisition module 201, used to acquire the charging station attributes, charging station data, and charging vehicle data of the charging station, wherein the charging vehicle data represents various data generated by the charging vehicle during the charging process, and the charging station data represents various data generated by the charging station during use;

[0092] a priority calculation module 202 for determining a charging priority based on the station attributes, the charging station data, and the charging vehicle data;

[0093] The power determination module 203 is configured to calculate and allocate target charging powers corresponding to the charging vehicles according to the charging priority order.

[0094] The above-mentioned data acquisition module 201 is used to execute step S101 of the above-mentioned charging power control method, the above-mentioned priority calculation module 202 is used to execute step S102 of the above-mentioned charging power control method, and the above-mentioned power determination module 203 is used to execute step S103 of the above-mentioned charging power control method. The specific working process of each module can refer to the specific process of the corresponding step of the above-mentioned charging power control method.

[0095] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0096] The embodiment of the present application discloses an electronic device. Figure 3 The electronic device includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 302 or the program loaded from the storage part 307 to the random access memory (RAM) 303. Various programs and data required for system operation are also stored in the RAM 303. The CPU 301, ROM 302 and RAM 303 are connected to each other through a bus. The input / output (I / O) interface 304 is also connected to the bus.

[0097] 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 devices such as a cathode ray tube (CRT), a liquid crystal display (LCD), and a speaker; a storage section 307 including a hard disk and the like; and a communication section 308 including a network interface card such as a local area network (LAN) card or a modem. The communication section 308 performs communication processing via a network such as the Internet. A drive 309 is also connected to the I / O interface 304 as needed. Removable media 310, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, and the like, is installed in the drive 309 as needed so that computer programs read therefrom can be installed into the storage section 307 as needed.

[0098] In particular, according to the embodiment of the present application, the above reference flow chart Figure 1The described process can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product comprising a computer program carried on a machine-readable medium, the computer program containing program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 308 and / or installed from a removable medium 310. When the computer program is executed by the central processing unit (CPU) 301, the above-mentioned functions defined in the apparatus of the present application are performed.

[0099] It should be noted that the computer-readable medium shown in this application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an 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 above. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination thereof.

[0100] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of application involved in this application is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the aforementioned application concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions applied for in this application.

Claims

1. A charging power control method, characterized in that: include: Obtaining the charging station's site attributes, charging station data, and charging vehicle data, wherein the charging vehicle data represents various data generated by the charging vehicle during the charging process, and the charging station data represents various data generated by the charging station during use; Determining a charging priority based on the station attributes, the charging station data, and the charging vehicle data, the station attributes including fixed stations and non-fixed stations, the fixed stations being charging stations where the charging vehicle is fixed, and the non-fixed stations being charging stations where the charging vehicle is not fixed; Calculate and allocate the target charging power corresponding to the charging vehicle according to the charging priority order; The charging vehicle data includes the state of charge and remaining charging time of the charging vehicle, where the remaining charging time is the time difference between the expected departure time of the charging vehicle and the current time; The determining of the charging priority according to the station attributes, 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; determining a charging priority of the charging vehicle according to the initial weight value, the remaining charging time, and the state of charge; The charging station data also includes the charging status of the charging gun, and the charging status includes a full load state and a trickle state; The determining of the charging priority according to the station attributes, the charging station data, and the charging vehicle data includes: When the station attribute is a non-fixed station, determining the number of trickle muzzles in the trickle state in the charging pile; The charging priority of the charging pile is determined according to the number of the trickle muzzles and the total number of muzzles of the charging pile.

2. The charging power control method according to claim 1, characterized in that: The determining the charging priority of the charging vehicle according to the initial weight value, the remaining charging time, 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 is the initial weight value expanded by 10 n After the time is doubled, the remaining charging time is extended by 10 n-1 The sum after multiplication.

3. The charging power control method according to claim 1, characterized in that: The charging station data includes the occupied power of all gun muzzles in the charging station; When the station attribute is a fixed station, the target charging power corresponding to the charging vehicle is calculated in sequence according to the charging priority, including: Determine the available power of the charging pile, the available power of the distribution group, and the available power of the station corresponding to the charging vehicle based on the occupied power of all guns in the charging station; The available power of the charging pile is the difference between the total power of the charging pile corresponding to the charging vehicle and the sum of the occupied power of all charging guns in the charging pile; the available power of the distribution group is the difference between the total power of the distribution group corresponding to the charging vehicle and the sum of the occupied power of all charging piles in the distribution group; the available power of the station is the difference between the total power of the station and the sum of the occupied power of all distribution groups in the station; The minimum value of the station available power, the distribution group available power and the charging pile available power is the target charging power.

4. The charging power control method according to claim 1, characterized in that: The determining the charging priority of the charging pile according to the number of the trickle muzzles and the total number of muzzles of the charging pile includes: The charging priority is equal to the number of trickle muzzles expanded by 10 m The sum of the total number of muzzles of the charging pile after multiplication, where m is a natural number.

5. The charging power control method according to claim 1, characterized in that: When the station attribute is a non-fixed station, the target charging power corresponding to the charging vehicle is calculated in sequence according to the charging priority, including: According to the charging priority, the available power of the charging pile, the available power of the station and the basic power corresponding to the charging vehicle are calculated in sequence. The basic power represents the average available power of the charging guns in use in the charging station; The target charging power is determined according to the charging state corresponding to the charging vehicle, the available power of the charging pile, the available power of the station and the basic power.

6. The charging power control method according to claim 5, characterized in that: The determining the target charging power according to the charging state corresponding to the charging vehicle, the available power of the charging pile, the available power of the station, and the basic power includes: When the charging state of the charging gun is at full load, the target charging power is the minimum value among the available power of the charging pile, the available power of the station, and the basic power; When the charging state of the charging gun is in a trickle state, the required power of the charging vehicle is called up, and the required power is the sum of the actual charging power of the charging vehicle and the increaseable power; The target charging power is the minimum value of the available power of the charging pile, the available power of the station, the basic power and the required power.

7. A charging power control system, characterized in that: include: A data acquisition module, configured to acquire the charging station's attributes, charging station data, and charging vehicle data. The charging vehicle data represents various data generated by the charging vehicle during the charging process, and the charging station data represents various data generated by the charging station during use. a priority calculation module, configured to determine a charging priority based on the station attributes, the charging station data, and the charging vehicle data, wherein the station attributes include fixed stations and non-fixed stations, wherein the fixed stations are charging stations where the charging vehicle is fixed, and the non-fixed stations are charging stations where the charging vehicle is not fixed; a power determination module, configured to calculate and allocate target charging powers corresponding to the charging vehicles according to the charging priority order; The charging vehicle data acquired by the data acquisition module includes the state of charge and remaining charging time of the charging vehicle, where the remaining charging time is the time difference between the expected departure time of the charging vehicle and the current time; The priority calculation module determines the charging priority based on the station attribute, the charging station data, and the charging vehicle data, including: when the station attribute is a fixed station, determining the initial weight value of the charging vehicle based on the state of charge; determining the charging priority of the charging vehicle based on the initial weight value, the remaining charging time, and the state of charge; The charging station data also includes the charging status of the charging gun, and the charging status includes a full load state and a trickle state; The determining of the charging priority according to the station attributes, the charging station data, and the charging vehicle data includes: When the station attribute is a fixed station, the number of trickle muzzles in the trickle state in the charging pile is determined; and the charging priority of the charging pile is determined according to the number of trickle muzzles and the total number of muzzles of the charging pile.

8. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes the method according to any one of claims 1 to 6.

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