A charging pile power supply method, device, electronic equipment and medium

Abstract

The embodiments of the present application disclose a charging pile power supply method, device, electronic device and medium. The method includes: in the process of each DC charging gun of the charging pile charging the vehicle, for the target DC charging gun, detecting the power supply efficiency of the power supply module that supplies power to the DC charging gun; determining the target power module whose power supply efficiency is less than the preset efficiency threshold from the power supply module; and ordering the target power module to stop supplying power to the target DC charging gun currently powered, and adding an AC charging gun to supplement the charging of the vehicle. The above scheme solves the problem of reduced power supply efficiency of the power module when the power demand of some vehicles decreases. By switching the target power module to other DC charging guns for power supply, the power supply efficiency is effectively improved, and the AC charging gun is added for supplementary charging to achieve AC and DC parallel charging, which retains the advantage of fast charging of the DC charging gun, and can use the AC charging gun as a supplement for a small part of the missing power to meet the power demand of the vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of new energy vehicles, and in particular to a charging pile power supply method, device, electronic equipment and medium. Background Art

[0002] Charging pile products are divided into AC piles and DC piles. In the actual charging process of new energy vehicles, the charging power will gradually decrease. In the final stage of charging, for example, after the battery capacity reaches 95%, it will enter the low-power trickle charging stage. The purpose of reducing the charging power is to prevent the vehicle from overheating and protect the battery health.

[0003] A reduction in charging power will lead to a decrease in the power supply efficiency of the corresponding power module, increase in ineffective losses, and also occupy charging module resources, thereby reducing the overall power supply efficiency of the charging pile. Summary of the invention

[0004] The embodiments of the present application provide a charging pile power supply method, device, electronic device and medium to improve the overall power supply efficiency of the charging pile.

[0005] According to one aspect of the present application, a charging pile power supply method is provided, the method comprising:

[0006] When each DC charging gun of the charging pile is charging a vehicle, for a target DC charging gun, the power supply efficiency of the power supply module supplying power to the DC charging gun is detected; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power;

[0007] Determine, from the power supply modules, a target power supply module whose power supply efficiency is less than a preset efficiency threshold;

[0008] The target power module is instructed to stop supplying power to the target DC charging gun currently supplying power, so that when other DC charging guns have power supply requirements, the target power module is instructed to supply power to other DC charging guns to improve the power supply efficiency of the target power module;

[0009] An AC charging gun is added to supplement charging of the vehicle to compensate for the power loss due to the target power module stopping supplying power.

[0010] According to one aspect of the present application, a charging pile power supply device is provided, the device comprising:

[0011] A power supply efficiency determination module, used to detect the power supply efficiency of a power supply module that supplies power to a target DC charging gun during the process of each DC charging gun of the charging pile charging a vehicle; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power;

[0012] A target power module determining module, used to determine a target power module whose power supply efficiency is less than a preset efficiency threshold from the power supply modules;

[0013] A power supply control module, used to make the target power supply module stop supplying power to the target DC charging gun currently supplying power, so that when other DC charging guns have power supply needs, the target power supply module supplies power to other DC charging guns to improve the power supply efficiency of the target power supply module;

[0014] The AC charging gun adding module is used to add an AC charging gun to supplement the charging of the vehicle to compensate for the power loss due to the target power module stopping supplying power.

[0015] According to another aspect of the present application, an electronic device is provided, the electronic device comprising:

[0016] at least one processor; and

[0017] A memory connected to at least one processor for data processing; wherein,

[0018] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the charging pile power supply method of any embodiment of the present application.

[0019] According to another aspect of the present application, a computer-readable storage medium is provided, which stores computer instructions, and the computer instructions are used to implement the charging pile power supply method of any embodiment of the present application when executed by a processor.

[0020] The technical solution of the embodiment of the present application is that in the process of each DC charging gun of the charging pile charging the vehicle, for the target DC charging gun, the power supply efficiency of the power supply module that supplies power to the DC charging gun is detected; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power; the target power supply module whose power supply efficiency is less than the preset efficiency threshold is determined from the power supply module; the target power supply module is ordered to stop supplying power to the target DC charging gun currently being supplied, so that when other DC charging guns have power supply requirements, the target power supply module is ordered to supply power to other DC charging guns to improve the power supply efficiency of the target power supply module, and an AC charging gun is added to supplement the charging of the vehicle to compensate for the power loss due to the stop of power supply by the target power supply module. The above solution solves the problem of reduced power supply efficiency of the power supply module when the power demand of some vehicles decreases. By switching the target power supply module to other DC charging guns for power supply, the power supply efficiency is effectively improved, and the AC charging gun is added for supplementary charging, so as to realize AC and DC parallel charging, retain the advantage of fast charging of DC charging guns, and can use AC charging guns as a supplement for a small part of the missing power to meet the power demand of the vehicle.

[0021] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A flowchart of a charging pile power supply method provided in an embodiment of the present application;

[0024] Figure 2 A flowchart of a charging pile power supply method provided in another embodiment of the present application;

[0025] Figure 3 A flowchart of a charging pile power supply method provided in another embodiment of the present application;

[0026] Figure 4 A flowchart of a charging pile power supply method provided in yet another embodiment of the present application;

[0027] Figure 5 A charging structure diagram that only supports single charging is provided in yet another embodiment of the present application;

[0028] Figure 6 A charging structure diagram supporting simultaneous AC and DC charging provided by yet another embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of a charging pile power supply device provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", "third", "fourth", "actual", "preset", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Figure 1 The flowchart of a charging pile power supply method provided in an embodiment of the present application is applicable to the case of charging new energy vehicles. Typically, the embodiment of the present application is applicable to the case of scheduling the power supply module in the charging pile to improve the power supply efficiency of the entire charging pile. The method can be executed by a charging pile power supply device, which can be implemented in the form of hardware and / or software, and the charging pile power supply device can be configured in an electronic device. Figure 1 As shown, the method includes:

[0034] S110. During the process of each DC charging gun of the charging pile charging a vehicle, for a target DC charging gun, detect the power supply efficiency of a power supply module that supplies power to the DC charging gun; wherein the power supply efficiency is a ratio of an actual power supply power of the power supply module to a maximum power supply power.

[0035] In the embodiment of the present application, the physical connection between the charging pile and the new energy vehicle is that a vehicle is connected to a DC charging gun and an AC charging gun at the same time. The vehicle supports charging the DC charging gun alone or the AC charging gun alone at the same time, and also supports charging the DC charging gun and the AC charging gun at the same time. Inside the charging pile, there are multiple power supply modules for powering the DC charging gun. The corresponding relationship between the power supply module and the DC charging gun is not fixed, and the power supply module can be dispatched to power the DC charging gun according to actual conditions.

[0036] In the embodiment of the present application, during the process of the DC charging gun charging the vehicle, the charging power is not fixed, but changes with reference to the required power of the vehicle. As the charging proceeds, the required power of the vehicle gradually decreases to meet the charging characteristics of the battery and extend the battery life. The required power of the vehicle decreases, the charging power of the DC charging gun decreases, and the power supply module that supplies power to the DC charging gun may have a reduced power supply. The power supply efficiency of the power supply module that supplies power to the target DC charging gun for the vehicle can be detected to timely grasp the current charging stage and the power supply efficiency of the charging pile. The power supply efficiency of the power supply module is the ratio of the actual power supply currently supplied by the power supply module to the DC charging gun to the maximum power supply that can be achieved. Among them, the maximum power supply is the maximum power that the power supply module can provide, and is related to the performance of the power supply module itself. In general, the actual power supply of the power supply module is less than or equal to the maximum power supply.

[0037] In the embodiment of the present application, the process of determining the target DC charging gun includes:

[0038] Detecting the power supply ratio of each DC charging gun; wherein the power supply ratio is the ratio of the actual power supply power of the DC charging gun to the maximum DC charging power of the corresponding vehicle;

[0039] The DC charging gun whose power supply power ratio is less than the preset ratio threshold is used as the target DC charging gun.

[0040] Exemplarily, if the DC charging gun charges the vehicle normally and is in a charging stage where the charging progress is relatively early, the actual power supply power of the DC charging gun is generally large. If the actual power supply power of the DC charging gun decreases, there is a high probability that the power supply efficiency of the power supply module is less than the preset efficiency threshold. In an embodiment of the present application, the power supply power ratio of each DC charging gun that is currently charging the vehicle is detected. The power supply power ratio is the ratio of the current actual power supply power of the DC charging gun to the maximum DC charging power required by the vehicle being charged by the DC charging docking. If the power supply power ratio of the DC charging gun is less than the preset ratio threshold, it is determined that the actual power supply power provided during the charging process of the DC charging gun is low, and the DC charging gun is used as the target DC charging gun to detect the power supply module corresponding to the target DC charging gun.

[0041] S120: Determine, from the power supply modules, a target power supply module whose power supply efficiency is less than a preset efficiency threshold.

[0042] Among them, the preset efficiency threshold can be determined according to actual conditions. It can be a value reflecting low efficiency, such as 10%. For the target DC charging gun that is charging the vehicle, the power supply modules that supply power to the target DC charging gun are traversed. If there is a power supply module whose power supply efficiency is less than the preset efficiency threshold, the power supply module is determined as the target power supply module. The reason why the power supply efficiency of the target power supply module is lower than the preset efficiency threshold may be that the vehicle charging has entered a stage with low power demand.

[0043] S130, instructing the target power module to stop supplying power to the target DC charging gun that is currently supplying power, so that when other DC charging guns have power supply needs, the target power module can supply power to other DC charging guns to improve the power supply efficiency of the target power module.

[0044] For example, if the power supply efficiency of the target power module is lower than the preset efficiency threshold, the power supply efficiency of the entire charging pile is reduced, and there may be a situation where the power demand of the vehicle being charged by the target DC charging gun is reduced, while the power demand of other vehicles is higher and cannot be met. Therefore, the target power module stops supplying power to the target DC charging gun that is currently being powered. When other DC charging guns have power supply requirements, the target power module is used to power other DC charging guns to improve the power supply efficiency, and can meet the charging power requirements of the corresponding vehicles of other DC charging guns.

[0045] In the specific application process, the DC charging gun that is charging the vehicle can be recorded in the list of used DC charging guns, and the power supply ratios of all DC charging guns in the list can be traversed to select the target DC charging gun whose power supply ratio is less than the preset ratio threshold, and record it in the list of low-power DC charging guns. The power supply modules that supply power to each target DC charging gun in the list are traversed to determine the target power module whose power supply efficiency is less than the preset efficiency threshold, and record it in the list of low-power power modules, and stop the current power supply task of the target power module. For the target power module in the list of low-power power modules, other DC charging guns are allocated to it for power supply, and the target power module that has supplied power to other DC charging guns is deleted from the list of low-power power modules and used as the power supply module again.

[0046] S140. Add an AC charging gun to supplement charging for the vehicle to compensate for the power lost due to the target power module stopping supplying power.

[0047] For example, when the target power module stops supplying power to the vehicle, the remaining power supply modules may not be able to meet the charging needs of the vehicle, and an AC charging gun can be added to supplement the vehicle to make up for the power lost due to the target power module stopping supplying power, so as to meet the charging needs of the vehicle. Since the DC charging gun has high charging efficiency and fast speed, it is not necessary to remove all the power supply modules simply to improve the power supply efficiency of the power supply modules and directly switch to the AC charging gun for charging. Instead, a part of the power supply modules is retained to supply power at a higher power to ensure the speed requirements of the vehicle charging, and an AC charging gun is added for supplementary charging to meet the power requirements of the vehicle charging.

[0048] The technical solution of the embodiment of the present application is that in the process of each DC charging gun of the charging pile charging the vehicle, for the target DC charging gun, the power supply efficiency of the power supply module that supplies power to the DC charging gun is detected; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power; the target power supply module whose power supply efficiency is less than the preset efficiency threshold is determined from the power supply module; the target power supply module is ordered to stop supplying power to the target DC charging gun currently being supplied, so that when other DC charging guns have power supply requirements, the target power supply module is ordered to supply power to other DC charging guns to improve the power supply efficiency of the target power supply module, and an AC charging gun is added to supplement the charging of the vehicle to compensate for the power loss due to the stop of power supply by the target power supply module. The above solution solves the problem of reduced power supply efficiency of the power supply module when the power demand of some vehicles decreases. By switching the target power supply module to other DC charging guns for power supply, the power supply efficiency is effectively improved, and the AC charging gun is added for supplementary charging, so as to realize AC and DC parallel charging, retain the advantage of fast charging of DC charging guns, and can use AC charging guns as a supplement for a small part of the missing power to meet the power demand of the vehicle.

[0049] Figure 2 This is a flow chart of a charging pile power supply method provided by another embodiment of the present application. The present embodiment is optimized based on the above embodiment. For solutions not described in detail in the present embodiment, please refer to the above embodiment. Figure 2 As shown, the method of the embodiment of the present application specifically includes the following steps:

[0050] S210: Determine a fully-equipped working power module that supplies power at the maximum power according to the required power of the vehicle and the maximum power supply of the power supply module.

[0051] Among them, the required power of the vehicle is the power corresponding to the current charging progress determined according to the charging curve of the vehicle. For the power supply module currently supplying power to the DC charging gun, it can be supplied with the maximum power supply. According to the required power of the vehicle, the fully equipped working power supply module that needs to be supplied with the maximum power can be determined. Specifically, if the maximum power supply power of each power supply module is the same, the required power can be divided by the maximum power supply power and rounded to determine the target number of fully equipped working power supply modules that need to be supplied with the maximum power supply. Select the target number from the power supply modules as the fully equipped working power supply modules and supply them with the maximum power supply. If the maximum power supply power of each power supply module is different, each power supply module can be traversed, and the total maximum power supply power of the currently traversed power supply module and the already traversed power supply module can be calculated during the traversal process. If the total maximum power supply power calculated in the current traversal process is greater than the required power, and the total power supply power calculated in the previous traversal process is less than the required power, then all the traversed power supply modules before the current traversal process are executed are used as fully equipped working power supply modules to supply power at the maximum power supply.

[0052] S220. Select a power supply module as a supplementary power supply module to provide supplementary power supply; wherein the supplementary power supply power is the difference between the required power and the total power supply power of all fully-equipped working power supply modules.

[0053] For example, when the total maximum power supply power of all fully-configured working power modules is less than the required power, it is necessary to select another power supply module as a supplementary power supply module to provide supplementary power. The supplementary power supply power is the difference between the required power and the total power supply power of all fully-configured working power modules, that is, the difference between the required power and the total maximum power supply power of all fully-configured working power modules.

[0054] For example, assume that there are three power supply modules, and the maximum power supply power is 20 kilowatts. If the vehicle's power demand is 60 kilowatts, the three power supply modules are used as full-equipped working power modules and all supply power at the maximum power. If the vehicle's power demand drops to 55 kilowatts, two power supply modules are used as full-equipped working power modules to supply power at the maximum power, each supplying 20 kilowatts, and the third power supply module is used as a supplementary power module to supply power at the supplementary power, that is, to provide 15 kilowatts. At this time, the power supply efficiency of the supplementary power module is .

[0055] S230, detecting the power supply efficiency of the supplementary power supply module, and if the power supply efficiency of the supplementary power supply module is less than a preset efficiency threshold, taking the supplementary power supply module as a target power supply module.

[0056] In the above case, the power supply efficiency of the fully equipped working power module is 100%, and only the power supply efficiency of the supplementary power module is lower than 100%, so the power supply efficiency of the supplementary power module is detected. If the power supply efficiency of the supplementary power module is lower than the preset efficiency threshold, the supplementary power module is used as the target power module.

[0057] S240, instructing the target power module to stop supplying power to the target DC charging gun that is currently supplying power, so that when other DC charging guns have power supply needs, the target power module can supply power to other DC charging guns to improve the power supply efficiency of the target power module.

[0058] S250: Add the AC charging gun to supplement charging of the vehicle with the supplementary power supply.

[0059] For example, since the supplementary power module has stopped supplying power, the DC charging gun still lacks some power, that is, the power originally provided by the supplementary power module. In order to avoid the waste of resources caused by the reduced power supply efficiency of the power supply module and to ensure the power demand of the vehicle, an AC charging gun can be added to supplement the power supply for charging the vehicle to make up for the power missing due to the removal of the supplementary power module.

[0060] The technical solution of the embodiment of the present application is to determine the fully equipped working power module that supplies power with the maximum power according to the required power of the vehicle and the maximum power supply power of the power supply module, and select a power supply module as a supplementary power module to provide supplementary power; wherein the supplementary power is the difference between the required power and the total power supply power of all fully equipped working power modules. The power supply efficiency of the supplementary power module is detected. If the power supply efficiency of the supplementary power module is less than the preset efficiency threshold, the supplementary power module is used as the target power module. The target power module is ordered to stop supplying power to the target DC charging gun currently powered, so that when other DC charging guns have power supply requirements, the target power module is ordered to supply power to other DC charging guns to improve the power supply efficiency of the target power module. The AC charging gun is added to supplement the vehicle with the supplementary power. The above scheme can detect the power supply efficiency of other supplementary power modules when some fully equipped working power modules are powered at the maximum power. When the power supply efficiency is low, the supplementary power module is removed and the missing power is supplemented by the AC charging gun, thereby meeting the power demand of the vehicle and enabling the supplementary power module to be used in other power supply scenarios to improve the power supply efficiency.

[0061] Figure 3 This is a flowchart of a charging pile power supply method provided by another embodiment of the present application. The present embodiment is optimized based on the above embodiment. For solutions not described in detail in the present embodiment, please refer to the above embodiment. Figure 3As shown, the method of the embodiment of the present application specifically includes the following steps:

[0062] S310, enabling the power supply module currently supplying power to the DC charging gun to supply power with an evenly distributed power supply; wherein the evenly distributed power supply is the ratio of the required power of the vehicle to the number of the power supplies.

[0063] In an embodiment of the present application, each power supply module can also supply power in the form of evenly sharing the required power, that is, the actual power supply power of each power supply module is equal, and the total actual power supply power of all power supply modules is equal to the required power of the vehicle. The required power can be divided by the number of power supply modules to obtain the evenly shared power supply. It should be noted that evenly sharing is required when the performance of each power supply module is met, that is, the maximum power supply power of each power supply module must be greater than or equal to the evenly shared power supply.

[0064] For example, assume that there are three power supply modules, and the maximum power supply power is 20 kilowatts. If the vehicle's power demand is 60 kilowatts, the three power supply modules will all supply power at the maximum power as fully equipped working power modules. If the vehicle's power demand drops to 45 kilowatts, the three power supply modules will evenly share the 45 kilowatt power supply task, with each supplying 15 kilowatts. At this time, the power supply efficiency of each power supply module is .

[0065] S320. During the process of each DC charging gun of the charging pile charging the vehicle, for the target DC charging gun, detect the power supply efficiency of the power supply module that supplies power to the DC charging gun; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power.

[0066] S330: If the power supply efficiency of at least one of the power supply modules is less than a preset efficiency threshold, select a power supply module as a target power supply module.

[0067] Exemplarily, if the power supply efficiency of at least one power supply module is less than the preset efficiency threshold, one of the power supply modules is selected as the target power supply module, and the remaining power supply modules still share the power supply task evenly. For example, assuming that the preset efficiency threshold is 80%, the power supply efficiency of the three power supply modules is 75% less than 80%, then one power supply module is selected as the target power supply module, and the remaining two power supply modules each supply power at 20 kilowatts, that is, the maximum power supply power. At this time, the power supply efficiency of the remaining two power supply modules is 100%.

[0068] S340, instructing the target power module to stop supplying power to the target DC charging gun that is currently supplying power, so that when other DC charging guns have power supply needs, the target power module can supply power to other DC charging guns to improve the power supply efficiency of the target power module.

[0069] S350: If the sum of the maximum power supplies of the remaining power supply modules is greater than or equal to the required power of the vehicle, the power supply modules are instructed to supply power with an evenly distributed power supply.

[0070] For example, if the sum of the maximum power supplies of the remaining power supply modules is greater than or equal to the required power of the vehicle, that is, the remaining power supply modules can meet the power supply demand, the power supply modules are allowed to continue to supply power with the equally-divided power. At this time, execution starts from S320.

[0071] S360: Otherwise, add the AC charging gun to supplement the power supply for supplementary charging of the vehicle; the supplementary power supply is the difference between the required power and the total power supply of all fully equipped working power modules.

[0072] Exemplarily, if the sum of the maximum power supplies of the remaining power supply modules is less than the required power of the vehicle, that is, the remaining power supply modules cannot meet the power supply demand, an AC charging gun is required for supplementary charging. In this case, the remaining power supply modules are all powered at the maximum power supply. The AC charging gun can be charged with a supplementary power supply, and the supplementary power supply is the difference between the required power and the total power supply of all fully equipped working power modules. Exemplarily, as in the above example, after selecting a power supply module as the target power module to stop supplying power, the remaining two power supply modules each supply power at 20 kilowatts. At this time, the power supply efficiency of the remaining two power supply modules is 100%. However, the total power supply is 40 kilowatts, which is difficult to meet the vehicle's 45-kilowatt demand, so an AC charging gun can be added to supplement 5 kilowatts.

[0073] The technical solution of the embodiment of the present application is to make the power supply module currently supplying power to the DC charging gun supply power with an evenly distributed power supply; wherein the evenly distributed power supply is the ratio of the required power of the vehicle to the number of the power supply sources. In the process of each DC charging gun of the charging pile charging the vehicle, for the target DC charging gun, the power supply efficiency of the power supply module supplying power to the DC charging gun is detected; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power. Determine the target power supply module whose power supply efficiency is less than the preset efficiency threshold from the power supply module. Make the target power supply module stop supplying power to the target DC charging gun currently supplying power, so that when other DC charging guns have power supply requirements, make the target power supply module supply power to other DC charging guns to improve the power supply efficiency of the target power supply module. If the sum of the maximum power supply powers of the remaining power supply modules is greater than or equal to the required power of the vehicle, make the power supply module supply power with an evenly distributed power supply. Otherwise, add the AC charging gun to supplement the power supply for the vehicle; the supplementary power supply is the difference between the required power and the total power supply power of all fully equipped working power modules. The above solution can detect the power supply efficiency when each power supply module evenly shares the power supply task. If the power supply efficiency is low, one power supply module is removed to improve the efficiency of the remaining power supply modules. When the required power cannot be met, the AC charging gun is used for charging to meet the power demand of the vehicle.

[0074] Figure 4 This is a flowchart of a charging pile power supply method provided in another embodiment of the present application. The present embodiment is optimized based on the above embodiment. For solutions not described in detail in the present embodiment, please refer to the above embodiment. Figure 4 As shown, the method of the embodiment of the present application specifically includes the following steps:

[0075] S410. During the process of each DC charging gun of the charging pile charging a vehicle, for a target DC charging gun, detect the power supply efficiency of a power supply module that supplies power to the DC charging gun; wherein the power supply efficiency is a ratio of an actual power supply power of the power supply module to a maximum power supply power.

[0076] S420: Determine, from the power supply modules, a target power supply module whose power supply efficiency is less than a preset efficiency threshold.

[0077] S430, instructing the target power module to stop supplying power to the target DC charging gun that is currently supplying power.

[0078] S440: When the vehicle only supports DC charging or AC charging at the same time, if the power supply modules corresponding to the target DC charging gun for charging the vehicle all stop supplying power to the target DC charging gun, stop the target DC charging gun from charging the corresponding vehicle and switch to the AC charging gun to charge the vehicle.

[0079] For example, Figure 5 As shown, the vehicle only supports one charging mode at the same time, only supports DC charging gun charging alone, or only supports AC charging gun charging alone. In this case, if there is a target power module that stops supplying power to the DC charging gun corresponding to the vehicle, the number of target power modules that stop charging the target DC charging gun is counted. If all the power supply modules corresponding to the target DC charging gun stop supplying power to the target charging gun, switch to the AC charging gun to continue charging the vehicle, and stop the target DC gun from charging the corresponding vehicle. When the charging needs of the vehicle are met, release the power supply module corresponding to the DC charging gun so that the power supply module can supply power to other DC charging guns, thereby improving the overall power supply efficiency of the charging pile.

[0080] S450: When the vehicle supports simultaneous DC and AC charging, if the power supply modules corresponding to the target DC charging guns charging the vehicle all stop supplying power to the DC charging guns, then the target DC charging guns are stopped from charging the corresponding vehicle, and the AC charging guns are instructed to charge the vehicle.

[0081] For example, Figure 6 As shown, the vehicle supports simultaneous DC and AC charging. In this case, the number of target power modules that stop charging the target DC charging gun is also counted. If the power supply modules corresponding to the target DC charging gun all stop supplying power to the target charging gun, the AC charging gun continues to charge the vehicle, and the target DC gun stops charging the corresponding vehicle.

[0082] S460: If some power supply modules stop supplying power to the target DC charging gun, determine the AC required power according to the total power supply power of the power supply modules supplying power to the target DC charging gun and the current required power of the vehicle.

[0083] If only some of the power supply modules stop supplying power to the target DC charging gun, the vehicle can be charged in both DC and AC modes, so that the power that should be provided by the power supply module that stops supplying power to the target DC charging gun can be compensated by AC charging. Specifically, the total power supply power of the power supply modules currently supplying power to the target DC charging gun can be counted, and the current power demand of the vehicle can be determined. The total power supply power is subtracted from the current power demand of the vehicle to obtain the AC power demand, which reflects the power that the AC charging gun needs to provide to the vehicle.

[0084] S470: According to the AC required power, add an AC charging gun to charge the vehicle.

[0085] For example, an AC charging gun may be added to charge the vehicle according to the AC power requirement, that is, the power provided by the AC charging gun to the vehicle reaches the AC power requirement.

[0086] If the vehicle is charged with both DC and AC at the same time, and it is detected that all power supply modules supplying power to the target DC charging gun have stopped supplying power to it, the AC charging gun will be switched to supply power to the vehicle alone, so that the power supply of AC charging meets the current power demand of the vehicle.

[0087] In an embodiment of the present application, the method further includes:

[0088] Detecting the total power supply power of the power supply module currently supplying power to the target DC charging gun;

[0089] If the total power supply power is less than or equal to the maximum AC charging power allowed to be input by the corresponding vehicle, and is less than or equal to the maximum AC power supply power of the AC charging gun, stop charging the corresponding vehicle with the target DC charging gun and charge the vehicle with the AC charging gun.

[0090] Exemplarily, after the target power module stops supplying power to the target DC charging gun currently being powered, or when there is no target power module stopping supplying power to the target DC charging gun currently being powered, the total power supply power of the power supply module currently supplying power to the target DC charging gun is detected. For example, assuming that there are three power supply modules, namely power supply module A, power supply module B, and power supply module C, supply power of power supply module A, power supply module B, and power supply module C are respectively determined. The power supply power of power supply module A, power supply module B, and power supply module C are added to obtain the total power supply power. If the total power supply power is less than or equal to the maximum AC charging power of the corresponding vehicle, and less than or equal to the maximum AC power supply power of the AC charging gun, it means that the AC charging gun can fully meet the charging power demand of the current vehicle, so the AC charging gun can be directly used to charge the vehicle, and the charging task of the target DC charging gun can be stopped, thereby freeing up the target DC charging gun to charge other vehicles and meet the high power demand of other vehicles.

[0091] In an embodiment of the present application, the method further includes:

[0092] All power supply modules corresponding to the target DC charging gun that stops charging are taken as target power supply modules, so that the target power supply modules stop supplying power to the target DC charging gun, so that when other DC charging guns have power supply needs, the target power supply modules supply power to other DC charging guns to improve the power supply efficiency of the target power supply modules.

[0093] On the basis of the scheme described in any of the above embodiments, if there is a situation where all DC charging is switched to AC charging, that is, the target DC charging gun is stopped from continuing to supply power to the corresponding vehicle, the power supply module of the target DC charging gun is used as the target power supply module, and the target power supply module stops supplying power to the DC charging gun, so that the target power supply module supplies power to other DC charging guns to improve the power supply efficiency of the target power supply module.

[0094] In an embodiment of the present application, the method further includes:

[0095] For the target power modules that stop supplying power to each target DC charging gun, a new DC charging gun is allocated to the target power modules based on the principle of the highest total power supply efficiency of each power supply module during power supply, so that the target power module supplies power to the new DC charging gun.

[0096] On the basis of the scheme described in any of the above embodiments, if there is a target power module that stops supplying power to the target DC charging gun, the target power module is recorded in the power module list, and a DC charging gun is reallocated to the target power module in the list so that it can charge the DC charging gun. The principle of allocating each target power module to the DC charging gun is that the total power supply efficiency is the highest when the power module is used as a power supply module to supply power to each DC charging gun after reallocation, and the correspondence between the target power module and the DC charging gun is coordinated. The target power module that has been allocated to other DC charging guns for power supply is deleted from the power module list.

[0097] The embodiment of the present application provides a charging pile power supply method, in the case where the vehicle only supports DC charging or AC charging at the same time, if the power supply modules corresponding to the target DC charging gun for charging the vehicle all stop supplying power to the target DC charging gun, then the target DC charging gun is stopped from charging the corresponding vehicle, and the AC charging gun is switched to charge the vehicle. In the case where the vehicle supports both DC and AC charging, if the power supply modules corresponding to the target DC charging gun for charging the vehicle all stop supplying power to the DC charging gun, then the target DC charging gun is stopped from charging the corresponding vehicle, and the AC charging gun is switched to charge the vehicle; if some power supply modules stop supplying power to the target DC charging gun, then the AC required power is determined according to the total power provided by the power supply modules supplying power to the target DC charging gun and the current required power of the vehicle; according to the AC required power, an AC charging gun is added to charge the vehicle. The above solutions respectively provide two specific methods for how to use AC charging guns to compensate for the power that should be provided by the target power module that stops supplying power, targeting the two situations where the vehicle only supports one charging mode at the same time, and supports both DC and AC charging at the same time. In this way, the charging needs of the current vehicle can be met through AC charging while converting the target power module to other DC charging guns for power supply to improve the overall power supply efficiency of the charging pile.

[0098] Figure 7 This is a schematic diagram of the structure of a charging pile power supply device provided in an embodiment of the present application. The device can execute the charging pile power supply method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method. Figure 7 As shown, the device comprises:

[0099] The power supply efficiency determination module 510 is used to detect the power supply efficiency of the power supply module that supplies power to the target DC charging gun during the process of each DC charging gun of the charging pile charging the vehicle; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power;

[0100] A target power module determining module 520, configured to determine a target power module whose power supply efficiency is less than a preset efficiency threshold from the power supply modules;

[0101] The power supply control module 530 is used to enable the target power supply module to stop supplying power to the target DC charging gun currently being supplied, so that when other DC charging guns have power supply needs, the target power supply module can supply power to other DC charging guns to improve the power supply efficiency of the target power supply module.

[0102] The AC charging gun adding module 540 is used to add an AC charging gun to supplement the charging of the vehicle to compensate for the power loss due to the target power module stopping supplying power.

[0103] In the embodiment of the present application, the device further includes: a fully equipped power supply module, which is used to:

[0104] According to the required power of the vehicle and the maximum power supply of the power supply module, a fully equipped working power supply module with the maximum power supply is determined;

[0105] Selecting a power supply module as a supplementary power supply module to provide supplementary power supply; wherein the supplementary power supply power is the difference between the required power and the total power supply power of all fully equipped working power supply modules;

[0106] Accordingly, the power supply efficiency determination module 510 detects the power supply efficiency of the power supply module that supplies power to the DC charging gun, including:

[0107] The power supply efficiency of the supplementary power supply module is detected.

[0108] In the embodiment of the present application, the AC charging gun adding module 540 adds an AC charging gun to supplement the vehicle with charging, including:

[0109] The AC charging gun is added to supplement the vehicle with the supplementary power supply.

[0110] In the embodiment of the present application, the device further includes:

[0111] An evenly distributed power supply module, used to enable the power supply module currently supplying power to the DC charging gun to supply power with evenly distributed power; wherein the evenly distributed power supply is the ratio of the required power of the vehicle to the number of the power supplies;

[0112] Accordingly, the target power module determining module 520 determines the target power module whose power supply efficiency is less than the preset efficiency threshold from the power supply modules, including:

[0113] If the power supply efficiency of at least one of the power supply modules is less than a preset efficiency threshold, a power supply module is selected as a target power supply module.

[0114] In the embodiment of the present application, the AC charging gun adding module 540 adds an AC charging gun to supplement the vehicle with charging, including:

[0115] If the sum of the maximum power supplies of the remaining power supply modules is greater than or equal to the required power of the vehicle, the power supply modules are ordered to supply power with an evenly distributed power supply;

[0116] Otherwise, the power supply module is used as a fully-equipped power supply module to supply power at the maximum power, and the AC charging gun is added to supplement the power supply for supplementary charging of the vehicle; wherein the supplementary power supply power is the difference between the required power and the total power supply power of all fully-equipped working power modules.

[0117] In the embodiment of the present application, the device further includes a target DC charging gun determination module, which is used to:

[0118] Detecting the power supply ratio of each DC charging gun; wherein the power supply ratio is the ratio of the actual power supply power of the DC charging gun to the maximum DC charging power of the corresponding vehicle;

[0119] The DC charging gun whose power supply power ratio is less than the preset ratio threshold is used as the target DC charging gun.

[0120] In the embodiment of the present application, the device further includes:

[0121] A power supply ratio determination module, used to detect the power supply ratio of each DC charging gun; wherein the power supply ratio is the ratio of the actual power supply power of the DC charging gun to the maximum DC charging power of the corresponding vehicle;

[0122] The target DC charging gun determination module is used to take the DC charging gun whose power supply power ratio is less than a preset ratio threshold as the target DC charging gun.

[0123] In the embodiment of the present application, the device further includes:

[0124] A total power supply determination module, used to detect the total power supply power of the power supply module currently supplying power to the target DC charging gun;

[0125] The switching module is used to stop the target DC charging gun from charging the corresponding vehicle and switch the AC charging gun to charge the vehicle if the total power supply power is less than or equal to the maximum AC charging power of the corresponding vehicle and less than or equal to the maximum AC power supply power of the AC charging gun.

[0126] In the embodiment of the present application, the device further includes:

[0127] The power supply stop control module is used to take all the power supply modules corresponding to the target DC charging gun that stops charging as the target power supply modules, so that the target power supply modules stop supplying power to the target DC charging gun, so that when other DC charging guns have power supply needs, the target power supply modules can supply power to other DC charging guns to improve the power supply efficiency of the target power supply modules.

[0128] In the embodiment of the present application, after the target power module is instructed to stop supplying power to the target DC charging gun currently supplying power, the device further includes:

[0129] A DC power supply switching module is used to stop the target DC charging gun from charging the corresponding vehicle and switch to the AC charging gun to charge the vehicle if the power supply modules corresponding to the target DC charging gun charging the vehicle all stop supplying power to the target DC charging gun when the vehicle only supports DC charging or AC charging at the same time.

[0130] In the embodiment of the present application, after the target power module is instructed to stop supplying power to the target DC charging gun currently supplying power, the method further includes:

[0131] A DC switching module, for stopping the target DC charging gun from charging the corresponding vehicle and switching the AC charging gun to charge the vehicle if the power supply modules corresponding to the target DC charging gun for charging the vehicle all stop supplying power to the DC charging gun when the vehicle supports both DC and AC charging;

[0132] An AC power demand determination module, configured to determine the AC power demand according to the total power provided by the power supply modules supplying power to the target DC charging gun and the current power demand of the vehicle if some power supply modules stop supplying power to the target DC charging gun;

[0133] The AC adding module is used to add an AC charging gun to charge the vehicle according to the AC required power.

[0134] In the embodiment of the present application, the device further includes:

[0135] An allocation module is used to allocate a new DC charging gun to a target power module that stops supplying power to each target DC charging gun, based on the principle of the highest total power supply efficiency of each power supply module during power supply, so that the target power module supplies power to the new DC charging gun.

[0136] A charging pile power supply device provided in an embodiment of the present application can execute a charging pile power supply method provided in any embodiment of the present application, and has functional modules and beneficial effects corresponding to the execution method.

[0137] Figure 8A schematic diagram of an electronic device 10 that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0138] like Figure 8 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the data processing of the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0139] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a data processing unit 19, such as a network card, a modem, a wireless data processing transceiver, etc. The data processing unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0140] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a charging pile power supply method.

[0141] In some embodiments, the charging pile power supply method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the data processing unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the charging pile power supply method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the charging pile power supply method in any other appropriate manner (e.g., by means of firmware).

[0142] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0143] The computer programs for implementing the methods of the present application may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable charging pile power supply device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0144] In the context of the present application, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0145] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0146] The systems and techniques described herein may be implemented in a computing system that includes a backend component (e.g., as a data server), or a computing system that includes a middleware component (e.g., an application server), or a computing system that includes a frontend component (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by digital data processing (e.g., a data processing network) in any form or medium. Examples of data processing networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0147] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a data processing network. The client and server relationship is generated by computer programs running on the respective computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0148] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the information expected by the technical solution of this application can be achieved, and this document is not limited here.

[0149] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A charging pile power supply method, characterized in that: The method comprises: When each DC charging gun of the charging pile is charging a vehicle, for a target DC charging gun, the power supply efficiency of the power supply module supplying power to the target DC charging gun is detected; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power; Determine, from the power supply modules, a target power supply module whose power supply efficiency is less than a preset efficiency threshold; The target power module is instructed to stop supplying power to the target DC charging gun currently supplying power, so that when other DC charging guns have power supply requirements, the target power module is instructed to supply power to other DC charging guns to improve the power supply efficiency of the target power module; Adding an AC charging gun to supplement charging for the vehicle to compensate for the power loss due to the target power module stopping supplying power; The method further comprises: The power supply module currently supplying power to the DC charging gun is required to supply power with an evenly distributed power supply; wherein the evenly distributed power supply is the ratio of the required power of the vehicle to the number of the power supply modules; Accordingly, determining the target power supply module whose power supply efficiency is less than a preset efficiency threshold from the power supply modules includes: If the power supply efficiency of at least one of the power supply modules is less than a preset efficiency threshold, selecting a power supply module as a target power supply module; Adding an AC charging gun to supplement charging of the vehicle includes: If the sum of the maximum power supplies of the remaining power supply modules is greater than or equal to the required power of the vehicle, the power supply modules are ordered to supply power with an evenly distributed power supply; Otherwise, the power supply module is used as a fully-equipped power supply module to supply power at the maximum power, and the AC charging gun is added to supplement the power supply for supplementary charging of the vehicle; wherein the supplementary power supply power is the difference between the required power and the total power supply power of all fully-equipped working power modules.

2. The method according to claim 1, characterized in that The process of determining the target DC charging gun includes: Detecting the power supply ratio of each DC charging gun; wherein the power supply ratio is the ratio of the actual power supply power of the DC charging gun to the maximum DC charging power of the corresponding vehicle; The DC charging gun whose power supply power ratio is less than the preset ratio threshold is used as the target DC charging gun.

3. A charging pile power supply device, characterized in that: The device comprises: A power supply efficiency determination module, used to detect the power supply efficiency of a power supply module that supplies power to a target DC charging gun during the process of each DC charging gun of the charging pile charging a vehicle; wherein the power supply efficiency is the ratio of the actual power supply power of the power supply module to the maximum power supply power; A target power module determining module, used to determine a target power module whose power supply efficiency is less than a preset efficiency threshold from the power supply modules; A power supply control module, used to make the target power supply module stop supplying power to the target DC charging gun currently supplying power, so that when other DC charging guns have power supply needs, the target power supply module supplies power to other DC charging guns to improve the power supply efficiency of the target power supply module; An AC charging gun adding module, used to add an AC charging gun to supplement charging for the vehicle to compensate for the power loss due to the target power module stopping supplying power; The device also includes: An evenly distributed power supply module, used to enable the power supply module currently supplying power to the DC charging gun to supply power with evenly distributed power; wherein the evenly distributed power supply is the ratio of the required power of the vehicle to the number of the power supply modules; Correspondingly, the target power module determination module determines the target power module whose power supply efficiency is less than the preset efficiency threshold from the power supply modules, including: If the power supply efficiency of at least one of the power supply modules is less than a preset efficiency threshold, selecting a power supply module as a target power supply module; The AC charging gun adding module adds an AC charging gun to supplement the vehicle with charging, including: If the sum of the maximum power supplies of the remaining power supply modules is greater than or equal to the required power of the vehicle, the power supply modules are ordered to supply power with an evenly distributed power supply; Otherwise, the power supply module is used as a fully-equipped power supply module to supply power at the maximum power, and the AC charging gun is added to supplement the power supply for supplementary charging of the vehicle; wherein the supplementary power supply power is the difference between the required power and the total power supply power of all fully-equipped working power modules.

4. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the charging pile power supply method described in claim 1 or 2.

5. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the charging pile power supply method according to claim 1 or 2 when executed.

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