Charging power allocation method, electronic device, and storage medium

Abstract

A charging power allocation method, an electronic device, and a storage medium. The charging power allocation method comprises: acquiring a set of power to be allocated, wherein the set of power to be allocated comprises allocation-pending charging units in a state of waiting for power allocation, and the total power to be allocated of the set of power to be allocated is preset total power minus the total allocated power; determining target power on the basis of average power of the set of power to be allocated and a power upper limit value of a target charging unit, wherein the target charging unit is an allocation-pending charging unit in the set of power to be allocated; and allocating power to the target charging unit on the basis of the target power. By comparing the average power and the power upper limit value, the charging units with smaller charging power requirements in the set of power to be allocated are charged at the maximum power, and the redundant power compared with the average power is recovered and equally allocated to the remaining charging units with larger charging power requirements, so that the charging power allocation is more reasonable and the power utilization efficiency is improved.

Description

Charging power distribution method, electronic device and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 28, 2023, with application number 202311091793.8 and application name “Charging power distribution method, electronic device and storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of charging technology, and in particular to a charging power distribution method, electronic device and storage medium. Background Art

[0003] With the development of new energy vehicles, charging piles, as power supply equipment for energy vehicles, have gradually evolved from hardware-level improvements to software-level breakthroughs in order to provide users with a safer, more stable, more reasonable and more personalized charging environment.

[0004] Due to the rapid expansion of charging pile usage, users can easily overload charging stations by simply charging at the maximum power of the charging piles through hardware. Furthermore, large-scale charging stations often experience irrational charging power allocation, resulting in low power utilization efficiency across the entire station.

[0005] Summary of the Invention

[0006] The present application provides a charging power distribution method, an electronic device, and a storage medium to solve the problem of low power utilization efficiency of charging stations caused by unreasonable power distribution in the prior art.

[0007] In one embodiment, the present application provides a power adjustment method, including:

[0008] Acquire a set of power to be allocated, the set of power to be allocated including charging units to be allocated that are in a power allocation state, and the total power to be allocated of the set of power to be allocated is the preset total power minus the allocated total power;

[0009] Determine the target power according to the average power of the to-be-allocated power set and the power upper limit of the target charging unit, wherein the target charging unit is a to-be-allocated charging unit in the to-be-allocated power set;

[0010] Power is allocated to the target charging unit according to the target power.

[0011] Optionally, determining the target power according to the average power and the upper power limit of the target charging unit includes:

[0012] Obtaining the average power of the power set to be allocated and the candidate power set;

[0013] Traversing the set of powers to be allocated to determine a charging unit as a target charging unit;

[0014] Determining whether the power upper limit value of the target charging unit is less than the average power;

[0015] If it is less than, determining the power upper limit value to be the target power, and calculating the total power to be allocated according to the target power and the preset total power;

[0016] If not, the target charging unit is moved to the candidate power set.

[0017] Optionally, obtaining the average power of the power set to be allocated includes:

[0018] Determining that the to-be-allocated power set includes a first number of to-be-allocated charging units;

[0019] The average power of the power set to be allocated is calculated according to the total power to be allocated and the first quantity.

[0020] Optionally, the charging power method further includes:

[0021] When all charging units of the power set to be allocated have been traversed, a new power set to be allocated is determined according to the candidate power set.

[0022] Optionally, the charging power method further includes:

[0023] When all charging units of the power set to be allocated have been traversed, determining whether the second number of charging units included in the candidate power set is equal to the number of charging units before the power set to be allocated is traversed;

[0024] If they are equal, the average power is determined to be the target power.

[0025] Optionally, before determining the target power, the method further includes:

[0026] Determine a first power upper limit value of a charging device corresponding to the charging unit to be assigned;

[0027] Determine a second power upper limit value of the device to be charged corresponding to the charging unit to be assigned;

[0028] The power upper limit value of the to-be-allocated charging unit is determined according to the minimum value of the first power upper limit value and the second power upper limit value.

[0029] Optionally, before determining the upper power limit value of the charging unit to be assigned, the method further includes:

[0030] Obtaining a reported power value of the charging unit to be assigned;

[0031] Determining a sum of the reported power value and a preset threshold as a third power upper limit value;

[0032] Then, the power upper limit value of the charging unit to be allocated is determined as follows:

[0033] The power upper limit value of the to-be-allocated charging unit is determined according to a minimum value among the first power upper limit value, the second power upper limit value, and the third power upper limit value.

[0034] Optionally, after determining the upper power limit of the charging unit to be assigned, the method further includes:

[0035] Determining whether the total power to be allocated is greater than the sum of the power upper limits;

[0036] When the total power to be allocated is greater than the sum of the power upper limits, power is allocated to the charging unit according to the power upper limits.

[0037] Optionally, before determining the target power, the method further includes:

[0038] Determining a lower power limit value of the charging unit to be assigned;

[0039] Determining whether the sum of the power lower limit values ​​is greater than the total power to be allocated;

[0040] When the sum of the power lower limits is greater than the total power to be allocated, power is allocated to the charging unit according to the power lower limits.

[0041] In one embodiment, the present application also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the first aspect when executing the computer program.

[0042] In one embodiment, the present application further provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the method as described in the first aspect is implemented.

[0043] The charging power allocation method in the embodiment of the present application determines the target power by comparing the average power of the power set to be allocated and the power upper limit value of the target charging unit, so that for each charging unit to be allocated in the power set to be allocated, the charging unit with a smaller charging power demand and a lower power upper limit value is charged at the maximum power, and the redundant power compared to the average power is recovered and evenly distributed to other charging units with larger charging power demands, thereby avoiding power overload of the entire charging station and making the charging power allocation more reasonable, thereby improving the power utilization efficiency of the entire charging station. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. 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 any creative work.

[0045] FIG1 is a schematic diagram of an application environment of a charging power distribution method provided in an embodiment of the present application;

[0046] FIG2 is a flow chart of a charging power distribution method provided in one embodiment of the present application;

[0047] FIG3 is a flow chart of a method for determining target power according to an embodiment of the present application;

[0048] FIG4 is a diagram of a multi-layered charging station architecture provided by an embodiment of the present application;

[0049] FIG5 is a schematic diagram of the architecture of a computer device in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. 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 invention.

[0051] First, the application environment of the charging power distribution method provided in the embodiment of the present application is introduced.

[0052] Please refer to Figure 1, which is a schematic diagram of the application environment of the charging power allocation method provided in one embodiment of the present application. The method provided in the embodiment of the present application can be applied in a charging system as shown in Figure 1, which includes a charging management device 100 and multiple charging units 200. The charging management device 100 is in communication with the charging unit 200 and allocates power to each charging unit 200 according to the charging power allocation method. The charging unit 200 can be electrically connected to the user's device to be charged 300 and charge the device to be charged 300 according to the allocated power. It can also include a charging sub-unit, allocate power to the charging sub-unit according to the charging power allocation method, and charge the user's device to be charged 300 through the sub-unit.

[0053] Specifically, in some embodiments, the charging system is a charging station, and the charging units 200 are multiple groups included in the charging station. The charging station needs to allocate the total power of the charging station to each group so that each group can complete its respective charging task. In the process of allocating charging power to the groups, it is only necessary to determine the total power to be allocated by the charging station and the actual charging status of each group, such as the maximum charging power required by the group. Then, the power value allocated to each group can be calculated according to the charging power allocation algorithm of the embodiment of the present application.

[0054] In some embodiments, the charging system is a charging group, and the charging unit 200 is the multiple charging piles included in the charging group. The charging group needs to allocate the total power of the charging group to each charging pile so that each group can complete its respective charging task. Similarly, it is necessary to determine the total power to be allocated for the charging group and the actual charging status of each charging pile, and then calculate the power value allocated to each charging pile in combination with the charging power allocation method. Therefore, the charging unit 200 can be either a virtual charging group or a physical charging device such as a charging pile.

[0055] In some other embodiments, the charging system is a charging station, the charging unit 200 is a charging group, and the subunits included in the charging unit 200 are charging piles. First, the parameters required by the charging power allocation method include the total power to be allocated of the charging station and the charging status of each charging pile, and the charging status of the group is determined based on the charging status of the charging pile. Then, based on the charging station and the charging group, the allocated power of the charging group is calculated according to the charging power allocation method. Secondly, based on the charging group and the charging pile, the allocated power of the charging pile is calculated according to the charging power allocation method. In this way, unified power allocation is achieved for charging stations with multi-layer architectures, so that the charging power allocation method can be applied to charging stations of different architecture types, so as to reduce the risk of overload operation of the charging station and improve its power utilization efficiency.

[0056] It is understood that the charging power allocation method provided in the embodiments of the present application can not only allocate power from a charging station to a charging group, and from a charging group to a charging pile, but can also allocate power from a charging pile to a charging gun. Furthermore, the applicable system of the charging power allocation method can be expanded to match more complex charging station architectures, such as a charging station-charging group-charging pile-charging gun architecture.

[0057] It is also understood that the charging power allocation method provided in the embodiments of the present application can be applied only to a certain level of the charging pile architecture, while other levels of the architecture can be applied using other algorithms as needed. For example, a charging station can allocate power to a charging group using the charging power allocation method of the embodiments of the present application, while a conventional power allocation method based on first-come, first-served basis can be applied to the charging piles for the charging group.

[0058] The charging management device 100 is in communication with the charging unit 200 and is used to manage the charging unit 200. Specifically, in an embodiment, the charging management device 100 may be composed of one or more workstations or servers, and can collect and query data on charging units 200, such as charging groups or charging piles, as well as process and analyze data on charging systems, such as charging stations and charging groups, and generate charging power allocation plans for them. Specifically, the data that the charging management device 100 can obtain includes the total power to be allocated by the charging system and the upper and / or lower power limits of the charging units 200.

[0059] In some embodiments, the charging unit 200 has a monitoring module for monitoring the charging status of the charging unit 200. The charging management device 100 obtains and analyzes the charging status of the charging unit 200, and adjusts the charging power allocation algorithm according to the charging status, so that the charging power allocation structure converges to the actual charging status, and further recovers redundant power for release, thereby improving the power utilization efficiency of the charging system.

[0060] Based on the above-mentioned charging system, the charging power distribution method provided in this application can be implemented.

[0061] Please refer to FIG. 2 , which is a flow chart of a charging power distribution method provided in one embodiment of the present application. The method may include:

[0062] S21. Obtain a power set to be allocated.

[0063] In this step, the power set to be allocated is a set consisting of multiple charging units to be allocated that are in a power allocation state. For example, the charging system contains 5 charging units, one of which is in a dormant state and does not participate in charging work. In this case, the dormant charging unit does not belong to the power set to be allocated. Among the remaining 4 charging units, one has been allocated charging power. In this case, the charging unit that has been allocated charging power is classified as belonging to the allocated power set, and does not belong to the power set to be allocated. The remaining 3 charging units are either connected to the device to be charged and ready for charging, or need to continue to allocate power to the subordinate charging sub-units. In short, the remaining 3 charging units need to be allocated charging power to complete the tasks set by the units. In this case, the 3 charging units belong to the power set to be allocated. At the same time, it can also be determined that the number of elements contained in the power set to be allocated is 3.

[0064] In this step, the power set to be allocated has a total power to be allocated, and the total power to be allocated is defined as the total power value that can be allocated to all the charging units to be allocated in the power set to be allocated. For example, the charging system can provide a total power value of 10 power units, of which 3 units of power value have been allocated to some charging units, and the remaining total power value that can be allocated to the charging units to be allocated is 7 units of power value. Therefore, the total power to be allocated is more specifically defined as the preset total power minus the allocated total power, and under normal circumstances, the total power to be allocated can be calculated more conveniently using this definition. It can be understood that the above-mentioned power units can be internationally commonly used power units such as kW (kilowatt) or PS (horsepower), or other virtual units used to characterize the concept of power. The power units here are only for illustrative purposes to facilitate the explanation of the concept, and have no limiting effect on the technical solution of the present application.

[0065] In this step, the method for obtaining the set of power to be allocated is to traverse the charging units of the charging system. For example, the charging power allocation method is executed by the charging management device, which sends a request to each charging unit under the charging system, or directly retrieves the status of each charging unit under authorization to determine whether each charging unit is in a state of power to be allocated. For any charging unit among the multiple charging units, when it is determined that it is in a state of power to be allocated, the charging management device generates an initially empty set and moves the charging unit to be allocated to the set. When all the charging units to be allocated in the charging system have been moved into the set, the set becomes the power to be allocated set, and the step of obtaining the power to be allocated set is completed.

[0066] S22. Determine the target power according to the average power of the power set to be allocated and the power upper limit of the target charging unit.

[0067] In this step, the average power of the power set to be allocated is the average power of the charging units to be allocated in the power set to be allocated, and is specifically defined as the total power to be allocated of the power set to be allocated divided by the number of charging units to be allocated.

[0068] The method for obtaining the average power of the power set to be allocated specifically includes: determining that the power set to be allocated includes a first number of charging units to be allocated; and calculating the average power of the power set to be allocated based on the total power to be allocated and the first number. For example, if the number of charging units to be allocated is determined to be 3 and the total power to be allocated of the power set to be allocated is 30 power units, the average power of the power set to be allocated is calculated to be 10 power units.

[0069] In this step, the target charging unit is a charging unit to be allocated in the set of power to be allocated. It can be understood that the target charging unit is not a specific charging unit to be allocated with certain specific properties to distinguish it from other charging units to be allocated, but any charging unit to be allocated in the charging power allocation method. It can be understood that in the process of allocating power to the charging units to be allocated according to the charging power allocation method, it is necessary to first allocate power to one of the charging units to be allocated, and then allocate power to the next charging unit to be allocated, and then allocate power to the third, fourth... until the last charging unit to be allocated. Therefore, in the process of allocating power to one of the charging units to be allocated, the target charging unit is defined as the charging unit to be allocated that is executing the charging power allocation method. After the target charging unit is allocated power, the target charging unit is no longer a charging unit to be allocated, and the next charging unit to be allocated that executes the charging power allocation method becomes the target charging unit.

[0070] In this step, the power upper limit is defined as the maximum power value that the charging unit can output under normal working conditions. For example, if the charging unit is a charging pile and its power upper limit is 10 power units, then a power value of 12 power units is assigned to the charging pile. This will put the charging pile in an overloaded state, which can easily cause a charging pile accident and damage the hardware equipment. Specifically, the power upper limit can be the maximum power value that the charging device corresponding to the charging unit, such as a charging gun, can output, or it can be the maximum power value that the device to be charged corresponding to the charging unit, such as a new energy vehicle battery pack, can receive, or it can be the actual maximum power value detected by the charging unit. A more detailed introduction will be given later.

[0071] In this step, the target power is determined by numerical comparison, that is, comparing the numerical values ​​of the average power of the power set to be allocated and the power upper limit of the target charging unit. Specifically, the average power of the power set to be allocated and the power upper limit of the target charging unit respectively constitute two constraints of the target charging unit, that is, the power of the target charging unit is less than or equal to the average power and the power of the target charging unit is less than or equal to the power upper limit. Otherwise, if the power of the target charging unit is greater than the average power, the power of other charging units to be allocated will be too low, resulting in the inability to complete their charging tasks; and if the power of the target charging unit is greater than the power upper limit, the target charging unit is prone to overload and accidents. In summary, the target power of the target charging unit is determined by comparing the numerical values ​​of the average power of the power set to be allocated and the power upper limit of the target charging unit, and determining the target power to be the smaller of the average power and the power upper limit.

[0072] S23. Allocate power to the target charging unit according to the target power.

[0073] In this step, since the target power of the target charging unit may change during the execution of the charging power allocation method, when allocating power to the target charging unit according to the target power, it is necessary to first determine the target power of each target charging unit, and after determining that the target power of all target charging units will not change, uniformly allocate power to each target charging unit according to its respective target power. For example, when determining the target power of the first target charging unit, its corresponding target power is the average power, and the average power is 10 power units. After determining the target power of several other target charging units, the average power changes to 12 power units, and the target power of the first target charging unit changes from 10 power units to 12 power units. It can be seen that in order to avoid repeatedly allocating different powers to the target charging unit for correction, it is necessary to uniformly allocate power after determining the target power.

[0074] Through the above scheme, the average power of the charging set to be allocated is compared with the power upper limit value of each target charging unit, so that the target charging units with lower charging power requirements can be charged at the power upper limit value to prevent power redundancy. For the target charging units with larger charging power requirements, the redundant power is evenly distributed to increase their allocated power, so that the charging units with low charging power requirements in the entire system can run at full load without being overloaded, and the charging units with high charging power requirements can obtain the average power and redundant power distribution to maximize the allocated power, thereby enabling the charging units with different charging power requirements in the entire system to obtain better power distribution, thereby improving the overall power utilization efficiency.

[0075] The method for determining the target power is introduced in detail below.

[0076] Please refer to Figure 3, which is a flow chart of a method for determining target power according to an embodiment of the present application. The method includes:

[0077] S31. Obtain the average power of the power set to be allocated and the candidate power set.

[0078] In this step, the candidate power set is an initial empty set, which is used to determine the target charging unit with a larger charging power demand during the charging power allocation process. The specific use method of the candidate power set is detailed in step S35.

[0079] It can be understood that the definition of average power and the process of obtaining the method have been described in detail above and will not be repeated here.

[0080] S32: traverse the power set to be allocated to determine a charging unit as a target charging unit.

[0081] In this step, one of the charging units to be allocated in the power to be allocated is determined to be the target charging unit, and steps S33, S34 and S35 are executed. After completing step S34 or step S35, another charging unit to be allocated in the power to be allocated is determined to be the target charging unit to execute subsequent steps, until all charging units to be allocated in the power to be allocated set have completed subsequent steps.

[0082] S33: Determine whether the power upper limit of the target charging unit is less than the average power.

[0083] S34: If it is less than, determine the power upper limit as the target power, and calculate the total power to be allocated according to the target power and the preset total power.

[0084] In this step, when the power upper limit value of the target charging unit is less than the average power, the target power of the target charging unit can be directly determined as the power upper limit value according to the aforementioned constraints. After determining the target power of the target charging unit, the target charging unit is no longer in a power allocation state because the target power has been determined, and the target charging unit is removed from the power set to be allocated. Accordingly, the total power to be allocated of the power set to be allocated is determined as the preset total power minus the target power. It can be understood that the preset total power can be the total power to be allocated of the last change. For example, the target power of the target charging unit is 8 power units, and the preset total power is 30 power units, then the total power to be allocated of the power set to be allocated is determined to be 22 power units.

[0085] S35: If it is not less than, move the target charging unit to the candidate power set.

[0086] In this step, the candidate power set is used to obtain target charging units with greater charging power requirements within the power set to be allocated. Specifically, it can be defined as a set consisting of target charging units with power caps greater than their average power. As can be seen above, a target charging unit with a power cap less than its average power has a smaller charging power requirement. Therefore, power is allocated according to its power cap. As a result, the actual allocated power of the target charging unit is reduced compared to the originally allocated average power, resulting in redundant power that can be allocated. To improve overall power utilization efficiency, the redundant power is reallocated to the target charging units with greater charging power requirements. Specifically, this redundant power is allocated to the target units in the candidate power set. For example, 30 power units of power should be evenly distributed among the three charging units A, B, and C. If A's power cap is 8 power units, this is equivalent to a redundant 2 power units of power available for allocation. At this time, B and C are determined to belong to the candidate power set, so that the redundant 2 power units can be subsequently allocated to B and C in the candidate power set.

[0087] In some embodiments, after step S35, the method further includes:

[0088] S36: When all charging units of the power set to be allocated have been traversed, a new power set to be allocated is determined based on the candidate power set.

[0089] In this step, it's obvious that if redundant power is detected in the previous step—that is, if a target charging unit's upper power limit is less than the average power—then the redundant power needs to be allocated to the target charging units in the candidate power set. In this embodiment, the candidate power set isn't used directly as the set for power allocation, but rather as an intermediate variable set to determine target charging units that can be allocated redundant power. These target charging units are then redefined as the new set to be allocated. This technical solution ensures that the set to which power is allocated is always the set to be allocated, thus avoiding interference caused by changes in the set. For example, each time the system allocates power to set X, it moves target charging unit B in set X with an upper power limit greater than the average power to candidate power set Y. At this point, set X hasn't been completely traversed, so it needs to continue evaluating elements in set X and move another target charging unit C with an upper power limit greater than the average power to candidate power set Y. This allows for marking some target charging units even when set X hasn't been completely traversed, without impacting the remaining traversal of set X.

[0090] In some embodiments, after step S36, the method further includes:

[0091] S37. When all charging units in the power set to be allocated have been traversed, determine whether the second number of charging units included in the candidate power set is equal to the first number before the power set to be allocated is traversed.

[0092] In this step, the second number refers to the number of charging units included in the candidate power set, and the first number refers to the number of charging units included in the power set to be allocated before it is traversed. By determining whether the first and second numbers are equal, it can be determined whether there is a target charging set in the power set to be allocated whose upper power limit is less than the average power, and further, whether there is redundant power in the power set to be allocated.

[0093] S38: If not equal, re-execute step S31.

[0094] In this step, if the first number is not equal to the second number, it can be determined that there is redundant power in the power set to be allocated, and the redundant power needs to be allocated to other target charging units that can receive the redundant power. It can be understood that since the power set to be allocated has been re-determined by the candidate power set at this time, the total power to be allocated and the average power of the new power set to be allocated have changed and need to be recalculated and determined. For example, if the total power to be allocated of the initial power set to be allocated X is 50 power units, including 5 target charging units A, B, C, D, and E, and the average power is 10 power units. In the first traversal process of determining the target power, since the upper limit power value of the target charging unit A is 2 power units, the target power of A is directly determined to be 2. At this time, the candidate power set Y includes 4 target charging units B, C, D, and E, which is not equal to the number of 5 target charging units included in the power set to be allocated X. Therefore, after the candidate power set Y is re-determined as the power set to be allocated X, the second traversal process of determining the target power is performed. The new total power to be allocated is 48 power units, and the new average power unit is 12 power units. At this time, since the power upper limit value of the target charging units B and C is 11, there are only two target charging units D and E in the candidate power set Y, which is not equal to the number of 4 target charging units in the power set to be allocated X. Therefore, the third traversal process of determining the target power is performed. The subsequent process is not explained in detail here. It can be understood that as long as the number of target charging units in the power set to be allocated X and the candidate power set Y is inconsistent, the step of determining the target charging power will be executed cyclically so that the number of target charging units in the power set to be allocated X and the candidate power set Y is equal or the power set to be allocated X does not include any target charging units.

[0095] S39: If equal, determine the average power as the target power.

[0096] In this step, if the first number equals the second number, it can be determined that there is no redundant power in the set of power to be allocated. At this time, the target power is determined for the target charging units still in the set of power to be allocated based on the average power of the set of power to be allocated. For example, after multiple iterations of the target power determination process, the number of elements in the set of power to be allocated X and the candidate power set Y are equal. At this time, for target charging units D and E that still belong to set X, the power to be allocated in set X is 26 power units, and the average power is 13 power units. Therefore, the target power for D and E is also 13 power units.

[0097] In some embodiments, before determining the target power, it is also necessary to determine the power upper limit value of the charging unit to be allocated, which specifically includes the following steps: first, determine the first power upper limit value of the charging device corresponding to the charging unit to be allocated and determine the second power upper limit value of the charging device corresponding to the charging unit to be allocated; then, determine the power upper limit value of the charging unit to be allocated based on the minimum value of the first power upper limit value and the second power upper limit value.

[0098] Specifically, the charging unit to be assigned has its corresponding charging device and the device to be charged. When allocating power to the charging unit to be assigned, its power cannot exceed the first power limit of the charging device or the second power limit of the device to be charged. These two factors constitute the power limit constraint of the charging unit. For example, when the charging unit to be assigned is a charging pile, its corresponding charging device is the charging pile itself, and the corresponding device to be charged can be a new energy vehicle. The power limit of the charging pile cannot exceed the first power limit it can output to prevent the charging pile from overloading, nor can it exceed the second power limit acceptable to the new energy vehicle.

[0099] Furthermore, in some other embodiments, the charging unit to be assigned has a monitoring module capable of obtaining the reported power value of the charging unit to be assigned. Therefore, before determining the power upper limit value of the charging unit to be assigned, the steps of obtaining the reported power value of the charging unit to be assigned and determining the sum of the reported power value and a preset threshold as a third power upper limit value are included. The power upper limit value of the charging unit to be assigned is determined based on the minimum value among the first power upper limit value, the second power upper limit value, and the third power upper limit value.

[0100] In this step, the third power upper limit value is defined as the sum of the reported power value of the charging unit to be allocated and the threshold value, which enables the power allocation method to more reasonably adjust the power recovery in combination with the actual situation, so as to help the power allocation method converge to the actual situation, and continuously adjust the redundant power between the charging units for recovery and release, thereby making the power utilization efficiency higher.

[0101] For example, a new energy vehicle connected to a charging station is nearly fully charged, so its actual reported charging power continues to decline. If power is still allocated based on the previous power cap, the allocated power will be significantly greater than the actual reported power, resulting in redundant power and reduced power utilization efficiency. Conversely, if the actual reported power is taken into account, the reported power of the charging unit will be adjusted based on the sum of the actual reported power and the floating threshold. In this scenario, power can be more reasonably allocated to the charging unit, improving power utilization efficiency.

[0102] It is understood that during the initial period of charging, because the device to be charged has not yet reached a full charge, the power transmitted by the charging unit will generally not be greater than the sum of the reported power and the threshold. Therefore, in some embodiments, within 30 minutes of charging, the power cap of the charging unit is determined by the minimum of the first power cap and the second power cap. After 30 minutes of charging, the power cap of the charging unit is determined by the minimum of the first power cap, the second power cap, and the third power cap.

[0103] It is also understood that in some embodiments, when the power transmitted by the charging unit is greater than the sum of the reported power and the threshold, the charging unit executes the charging power allocation method provided in the embodiments of the present application. During the charging power allocation process, if the power upper limit of the charging unit is less than the actual reported power value, the power upper limit is re-determined to be the reported power value; otherwise, the power upper limit of the charging unit is not adjusted.

[0104] In some embodiments, after determining the power upper limit value of the charging unit to be allocated and before starting to determine the target power, it also includes judging whether the total power to be allocated is greater than the sum of the power upper limit values, and when the total power to be allocated is greater than the sum of the power upper limit values, allocating power to the charging unit according to the power upper limit value.

[0105] In this step, if the total power to be allocated is greater than the sum of the maximum power required by all charging units, then all charging units can be allocated power according to the power cap, and there is still redundant power available for recovery. For example, if the charging group has 40 power units of total power to be allocated, and the power caps of the three charging stations A, B, and C in the charging group are 10, 12, and 15, respectively, then each charging station can be allocated according to the power cap, and there is still redundant power available in the charging group.

[0106] In some embodiments, before determining the target power, the step of determining the lower power limit of the charging unit to be allocated, judging whether the sum of the lower power limit values ​​is greater than the total power to be allocated, and when the sum of the lower power limit values ​​is greater than the total power to be allocated, allocating power to the charging unit according to the lower power limit value.

[0107] In this step, the power lower limit of each charging unit can be customized to meet the charging task requirements. Specifically, for each charging unit, if the allocated power is less than the power lower limit, power is allocated to the charging unit according to the power lower limit. If the total power to be allocated for the charging set does not meet the power lower limit of each charging unit, power is also allocated to the charging unit according to the power lower limit.

[0108] Please refer to FIG4 , which is a diagram of a multi-layered charging station architecture provided in an embodiment of the present application.

[0109] Through the technical solution of the present application, for a multi-level architecture of charging station 210, charging group 220, and charging pile 230, the power limit of each group is determined by obtaining the sum of the power limits of the charging piles 230 included in each group and the sum of the power limits of the connected devices 300 to be charged. The allocated power for each group is then calculated based on this power limit and the total power to be allocated of the charging station 210. For the multiple charging piles 230 included in each charging group 220, the power limit of each charging pile 230 is determined based on the reported power, the charging power limit, and the power limits of the devices 300 to be charged. Power is then allocated to each charging pile 230 based on the power limit of the charging pile 230 and the total power of the charging group 220. This enables the power allocation algorithm in the embodiment of the present application to allocate power for the multi-level architecture and dynamically adjust it based on the reported actual power, so that the allocated power converges to the actual power, thereby improving the power utilization efficiency of the entire charging station 210.

[0110] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the method as described in the above embodiment.

[0111] An embodiment of the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The internal structure diagram of the electronic device may be as shown in FIG5 . When the processor executes the computer program, the charging power distribution method of the aforementioned embodiment is implemented.

[0112] Through the above scheme, the charging system compares the average power of the charging set to be allocated with the power upper limit value of each target charging unit, so that the target charging units with lower charging power requirements can be charged at the power upper limit value to prevent power redundancy, while for the target charging units with larger charging power requirements, the redundant power is evenly distributed to increase their allocated power, so that the charging units with low charging power requirements in the entire system can run at full load without being overloaded, and the charging units with high charging power requirements can obtain the average power and redundant power distribution to maximize the allocated power, thereby enabling the charging units with different charging power requirements in the entire system to obtain better power distribution, thereby improving the overall power utilization efficiency.

[0113] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0114] Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0115] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A charging power distribution method, characterized in that: include: Acquire a power set to be allocated, the power set to be allocated includes charging units to be allocated that are in a power allocation state, and the total power to be allocated of the power set to be allocated is the preset total power minus the allocated total power; Determine the target power according to the average power of the to-be-allocated power set and the power upper limit value of the target charging unit, wherein the target charging unit is a to-be-allocated charging unit of the to-be-allocated power set; Power is allocated to the target charging unit according to the target power.

2. The method according to claim 1, characterized in that The determining the target power according to the average power and the upper power limit of the target charging unit includes: Obtaining the average power of the power set to be allocated and the candidate power set; Traversing the set of powers to be allocated to determine a charging unit as a target charging unit; Determining whether the power upper limit value of the target charging unit is less than the average power; If it is less than, determining the power upper limit value to be the target power, and calculating the total power to be allocated according to the target power and the preset total power; If not, the target charging unit is moved to the candidate power set.

3. The method according to claim 2, characterized in that The obtaining the average power of the power set to be allocated comprises: Determining that the to-be-allocated power set includes a first number of to-be-allocated charging units; The average power of the power set to be allocated is calculated according to the total power to be allocated and the first quantity.

4. The method according to claim 2, characterized in that: Also includes: When all charging units of the power set to be allocated have been traversed, a new power set to be allocated is determined according to the candidate power set.

5. The method according to claim 4, characterized in that Also includes: When all charging units of the power set to be allocated have been traversed, determining whether the second number of charging units included in the candidate power set is equal to the number of charging units before the power set to be allocated has been traversed; If they are equal, the average power is determined to be the target power.

6. The method according to claim 1, characterized in that Before determining the target power, the method further includes: Determine a first power upper limit value of a charging device corresponding to the charging unit to be allocated; Determine a second power upper limit value of the device to be charged corresponding to the charging unit to be allocated; The power upper limit value of the charging unit to be allocated is determined according to the minimum value of the first power upper limit value and the second power upper limit value.

7. The method according to claim 6, characterized in that Before determining the upper power limit value of the charging unit to be allocated, the method further includes: Obtaining the reported power value of the charging unit to be allocated; Determine that the sum of the reported power value and a preset threshold is a third power upper limit value; Then, the power upper limit value of the charging unit to be allocated is determined as follows: The power upper limit value of the charging unit to be allocated is determined according to the minimum value among the first power upper limit value, the second power upper limit value and the third power upper limit value.

8. The method according to claim 6 or 7, characterized in that: After determining the upper power limit value of the charging unit to be allocated, the method further includes: Determining whether the total power to be allocated is greater than the sum of the power upper limit values; When the total power to be allocated is greater than the sum of the power upper limits, power is allocated to the charging unit according to the power upper limits.

9. The method according to any one of claims 1 to 7, characterized in that Before determining the target power, the method further includes: Determining a lower power limit value of the charging unit to be allocated; Determining whether the sum of the power lower limit values ​​is greater than the total power to be allocated; When the sum of the power lower limits is greater than the total power to be allocated, power is allocated to the charging unit according to the power lower limits.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 9 is implemented.

11. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 9 is implemented.

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