Power grid load regulation and control method and device based on charging pile priority and terminal equipment

Abstract

The invention relates to a power grid load regulation and control method and device based on charging pile priority and terminal equipment, and the method comprises the steps: obtaining a first load of a power grid which is used for supplying power to a plurality of charging piles; under the condition that the first load of the power grid is larger than or equal to the first preset load, charging data of all the charging piles are obtained, and the charging data comprise at least two items of the charging duration, the charging electric quantity, the charged capacity and the charging rate; performing weighted calculation on each charging data of the charging pile to obtain a use priority corresponding to the charging pile; sorting the charging piles according to the use priorities; and selecting a first charging pile list from the first sorting result, so that the power grid executes power supply stopping operation on each charging pile in the first charging pile list. Through the method and the device, the problem of low load regulation and control accuracy of the power grid for supplying power to the charging pile in related technologies is solved, and the technical effect of improving the load regulation and control accuracy of the power grid for supplying power to the charging pile is achieved.

Description

Technical Field

[0001] The present application belongs to the field of power grid technology, and in particular, relates to a power grid load control method, device and terminal equipment based on charging pile priority. Background Art

[0002] In the construction of smart parks, energy consumption management has become a key link to ensure the efficient operation of the park. Charging piles are important energy-consuming equipment in the park. Their regulation will directly affect the overall energy consumption level and power safety of the park. With the increase in the number of charging piles and the diversification of vehicle charging needs, the load fluctuation of charging piles has become more and more obvious, which may lead to grid overload, equipment failure and even serious safety hazards. Therefore, how to scientifically and reasonably regulate the load of the power grid that supplies power to the charging piles has become an urgent problem to be solved.

[0003] In order to avoid overload and affect the normal operation of the power grid, the operation and maintenance personnel need to make corresponding adjustments to the input of the power grid system according to the changes in the output load of the charging piles in a timely manner. However, the current control method is for the operation and maintenance personnel to predict the load of the charging piles at a certain moment in the future based on experience or the historical charging data of the charging piles, and then make load control for the power grid based on the prediction results corresponding to each charging pile. The real-time performance of this prediction method is too low, and it is impossible to control the load of the power grid in real time, which will affect the accuracy of load control.

[0004] Currently, no effective solution has been proposed for the problem of low load control accuracy of the power grid that supplies power to the charging piles in the relevant technology. Summary of the invention

[0005] The embodiments of the present application provide a method, apparatus and terminal device for load regulation of a power grid based on charging pile priority, so as to at least solve the problem of low load regulation accuracy of a power grid supplying power to charging piles in the related art.

[0006] In a first aspect, an embodiment of the present application provides a method for grid load regulation based on charging pile priority, comprising: obtaining a first load of the grid, wherein the grid is used to supply power to a plurality of charging piles; when the first load of the grid is greater than or equal to a first preset load, obtaining charging data of each charging pile, wherein the charging data includes at least two of the following items: charging duration, charging power, charged capacity, and charging rate; performing weighted calculation on each charging data of the charging pile to obtain a usage priority corresponding to the charging pile; sorting each charging pile according to the usage priority to obtain a first sorting result; selecting a first charging pile list from the first sorting result, so that the grid executes a power supply stop operation on each charging pile in the first charging pile list.

[0007] In some embodiments, after causing the power grid to stop supplying power to each charging pile in the first charging pile list, the method further includes: obtaining a second load of the power grid; when the second load of the power grid is less than a second preset load, sorting the charging piles that have been stopped from supplying power by the power grid according to usage priority to obtain a second sorting result; selecting a second charging pile list from the second sorting result so that the power grid can re-execute the power supply operation on each charging pile in the second charging pile list.

[0008] In some embodiments, selecting a first charging pile list from a first sorting result so that the power grid performs a power supply stop operation on each charging pile in the first charging pile list includes: starting from the charging pile with the highest priority in the first sorting result, selecting a preset number of charging piles in order of usage priority from high to low to add to the first charging pile list, so that the power grid performs a power supply stop operation on each charging pile in the first charging pile list.

[0009] In some embodiments, after causing the power grid to stop powering each charging pile in the first charging pile list, the method further includes: obtaining a third load of the power grid after the power grid stops powering each charging pile in the first charging pile list; when the third load of the power grid is greater than or equal to the first preset load, removing the charging piles on which the power grid has stopped powering from the first sorting result, and clearing the first charging pile list; and starting with the charging pile with the highest priority in the first sorting result, selecting a preset number of charging piles in order of priority from high to low to add them to the first charging pile list, so that the power grid stops powering each charging pile in the first charging pile list.

[0010] In some embodiments, selecting a second charging pile list from the second sorting result so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list includes: starting from the charging pile with the lowest priority in the second sorting result, selecting a preset number of charging piles in order from low to high priority to add to the second charging pile list, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0011] In some embodiments, after the power grid re-executes the power supply operation on each charging pile in the second charging pile list, the method also includes: after the power grid re-executes the power supply operation on each charging pile in the second charging pile list, obtaining a fourth load of the power grid; when the fourth load of the power grid is less than the second preset load, removing the charging piles that have been re-powered by the power grid from the second sorting result, and clearing the second charging pile list; and starting with the charging pile with the lowest priority in the second sorting result, selecting a preset number of charging piles in order from low to high priority to add to the second charging pile list, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0012] In some embodiments, the charging data includes charging time, charging power, charged capacity, charging rate and user strategy; weighted calculation is performed on each charging data of the charging pile, and the usage priority corresponding to the charging pile is calculated, including: obtaining a first weight corresponding to the charging time, a second weight corresponding to the charging power, a third weight corresponding to the charged capacity, a fourth weight corresponding to the charging rate, and a fifth weight corresponding to the user strategy; based on the first weight, the second weight, the third weight, the fourth weight and the fifth weight, weighted summation is performed on each charging data of the charging pile, and the usage priority corresponding to the charging pile is calculated.

[0013] In a second aspect, an embodiment of the present application provides a power grid load control device based on charging pile priority, including: a load acquisition module, used to acquire a first load of the power grid, wherein the power grid is used to supply power to multiple charging piles; a data acquisition module, used to acquire charging data of each charging pile when the first load of the power grid is greater than or equal to a first preset load, wherein the charging data includes at least two of the following items: charging duration, charging power, charged capacity, and charging rate; a calculation module, used to perform weighted calculation on each charging data of the charging pile to obtain a usage priority corresponding to the charging pile; a sorting module, used to sort each charging pile according to the usage priority to obtain a first sorting result; an execution module, used to select a first charging pile list from the first sorting result, so that the power grid executes a power supply stop operation on each charging pile in the first charging pile list.

[0014] In a third aspect, an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the grid load control method based on the priority of charging piles according to any one of the first aspects above is implemented.

[0015] In a fourth aspect, an embodiment of the present application provides a computer program product, including a computer program. When the computer program is executed, the power grid load control method based on charging pile priority described in any one of the first aspects is executed.

[0016] Compared with the related art, the power grid load control method, device and terminal device based on the priority of charging piles provided in the embodiment of the present application, when the first load of the power grid is greater than or equal to the first preset load, the charging data of each charging pile is weightedly calculated to obtain the usage priority corresponding to each charging pile, and each charging pile is sorted according to the usage priority, and the charging pile that needs to perform the power supply stop operation is selected from the sorting result. In this way, each charging pile is regulated based on the usage priority of the charging pile, which can avoid the overload of the power grid caused by the excessive use of some charging piles, thereby reasonably allocating the load of the power grid, reducing the risk of power grid overload, and improving the safety of electricity use; and in this way, when the load of the power grid exceeds a certain level, the usage priority of each charging pile can be calculated in real time, instead of predicting the load based on the historical charging data of the charging pile, which can improve the real-time nature of the load control of the power grid, and then improve the accuracy of the load control of the power grid. Through this application, the problem of low accuracy of load control of the power grid that supplies power to the charging piles in the related art is solved, and the technical effect of improving the accuracy of load control of the power grid that supplies power to the charging piles is achieved.

[0017] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art 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 paying any creative work.

[0019] Figure 1 is a flow chart of a method for controlling power grid load based on charging pile priority according to an embodiment of the present application;

[0020] Figure 2 is a flow chart of executing a power supply stop strategy for a charging pile according to an embodiment of the present application;

[0021] Figure 3 is a flow chart of executing a re-powering strategy for a charging pile according to an embodiment of the present application;

[0022] Figure 4It is a structural schematic diagram of a power grid load control device based on charging pile priority according to an embodiment of the present application;

[0023] Figure 5 It is a structural diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0025] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0026] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0027] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0028] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0029] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0030] In the construction of smart parks, energy consumption management has become a key link to ensure the efficient operation of the park. Charging piles are important energy-consuming equipment in the park. Their regulation will directly affect the overall energy consumption level and power safety of the park. With the increase in the number of charging piles and the diversification of vehicle charging needs, the load fluctuation of charging piles has become more and more obvious, which may lead to grid overload, equipment failure and even serious safety hazards. Therefore, how to scientifically and reasonably regulate the load of the power grid that supplies power to the charging piles has become an urgent problem to be solved.

[0031] In order to avoid overload and affect the normal operation of the power grid, the operation and maintenance personnel need to make corresponding adjustments to the input of the power grid system according to the changes in the output load of the charging piles in a timely manner. However, the current control method is for the operation and maintenance personnel to predict the load of the charging piles at a certain moment in the future based on experience or the historical charging data of the charging piles, and then make load control for the power grid based on the prediction results corresponding to each charging pile. The real-time performance of this prediction method is too low, and it is impossible to control the load of the power grid in real time, which will affect the accuracy of load control.

[0032] Therefore, there is an urgent need for a charging pile load control strategy based on the smart park energy consumption management system. Through intelligent alarm management, load forecasting and control algorithms, the load distribution of charging piles can be optimized, the safety of electricity use and energy utilization efficiency can be improved, and the stable operation of the park can be ensured.

[0033] Currently, no effective solution has been proposed for the problem of low load control accuracy of the power grid that supplies power to the charging piles in the related technology.

[0034] In view of this, the embodiment of the present application provides a method for regulating the load of a power grid based on the priority of charging piles. When the first load of the power grid is greater than or equal to the first preset load, the charging data of each charging pile is weighted to obtain the usage priority corresponding to each charging pile, and each charging pile is sorted according to the usage priority, and the charging pile that needs to stop the power supply operation is selected from the sorting result. In this way, by regulating each charging pile based on the usage priority of the charging pile, it is possible to avoid overloading the power grid due to excessive use of certain charging piles, thereby reasonably allocating the load of the power grid, reducing the risk of overloading the power grid, and improving the safety of electricity use; and in this way, when the load of the power grid exceeds a certain level, the usage priority of each charging pile can be calculated in real time, instead of predicting the load based on the historical charging data of the charging pile, which can improve the real-time nature of the load regulation of the power grid, and thus improve the accuracy of the load regulation of the power grid. Through this application, the problem of low accuracy of load regulation of the power grid that supplies power to the charging piles in the related art is solved, and the technical effect of improving the accuracy of load regulation of the power grid that supplies power to the charging piles is achieved.

[0035] The following will be combined Figure 1 For an explanation of a method for controlling power grid load based on charging pile priority provided by an embodiment of the present application, please refer to Figure 1 , Figure 1 is a flow chart of a method for controlling power grid load based on charging pile priority according to an embodiment of the present application, such as Figure 1 As shown, the method includes:

[0036] Step S101, obtaining a first load of a power grid, wherein the power grid is used to supply power to a plurality of charging piles.

[0037] In this embodiment, the first load may be a real-time load or a current load of the power grid, and the first load of the power grid may be collected or queried through an intelligent sensor or a power distribution system.

[0038] Step S102, when the first load of the power grid is greater than or equal to the first preset load, obtain charging data of each charging pile, wherein the charging data includes at least two of the following items: charging time, charging power, charged capacity, and charging rate.

[0039] In this embodiment, the first preset load may be 90% of the rated load of the power grid set in advance. It should be noted that the first preset load may be set according to actual needs, and this application does not limit it. In this embodiment and the following embodiments, the first preset load is 90% of the rated load of the power grid.

[0040] In this embodiment, intelligent sensors or data acquisition modules can be installed on the charging piles or the power equipment on which the charging piles are performing charging tasks. The real-time load and operating status of the charging piles can be monitored through these intelligent sensors or data acquisition modules to obtain the charging data of each charging pile. In the subsequent load regulation process of the power grid, the usage priority of each charging pile can be dynamically determined based on these charging data to ensure the optimal configuration of energy consumption.

[0041] Specifically, the method for obtaining the charging time of the charging pile includes: obtaining the charging start time T of the charging pile start , and the current time T current , then the charging time is L duration =T current -T current , in the order of charging time from long to short, the power supply stop operation or power supply re-operation can be performed on the charging pile with the longest charging time according to the charging time of each charging pile.

[0042] Specifically, the method for obtaining the charging power of the charging pile includes: obtaining the charging start time T of the charging pile start , current time T current , and the real-time power P(t) of the charging pile, then the charging power Based on the charging capacity of each charging pile, the charging piles with higher power consumption can be regulated first to ensure that the high-energy consumption charging piles are given priority in load regulation and reduce the overall power pressure.

[0043] Specifically, the method for obtaining the charged capacity includes: obtaining the initial battery capacity C of the power equipment (for example, a new energy vehicle) for which the charging pile is performing the charging task initial , and the current battery charge C of the power device current , then the charged capacity is C charged =C current -C initial , based on the battery information collected by the charging piles, the charging piles with charged capacity can be regulated first, so as to ensure that the charging piles corresponding to the power equipment with more sufficient charging are regulated first, effectively reducing the risk of overload.

[0044] Specifically, the method for obtaining the charging rate of the charging pile includes: obtaining the charging start time T of the charging pile start , current time T current , and the real-time power P(t) of the charging pile, then the charging rate According to the average charging rate of each charging pile, the charging piles with higher charging rates can be regulated preferentially, because the charging piles corresponding to the fast charging mode usually bring a greater instantaneous load to the power grid. Therefore, when load regulating the power grid, the charging piles with higher charging rates should be given priority.

[0045] In one embodiment, the charging data of the charging pile may also include a user policy. When a user uses the charging pile to charge his or her own power equipment, the user may be informed in advance that the charging pile is at risk of being regulated, and the user's input willingness to be regulated may be recorded. If the user is willing to be regulated, the user policy U=1, otherwise U=0. For example, if the user is in a hurry and needs to charge the power equipment urgently, he or she may record his or her willingness not to be regulated. Taking this willingness into consideration, the use priority of the charging pile corresponding to the user's power equipment will be reduced during subsequent load regulation.

[0046] Step S103, performing weighted calculation on each charging data of the charging pile to obtain the usage priority corresponding to the charging pile.

[0047] In this embodiment, in order to ensure the accuracy and efficiency of load control, multiple factors can be integrated. For example, the charging time, charging power, charged capacity, charging rate and user strategy of the charging pile can be obtained to form a weighted control decision.

[0048] Specifically, the charging data may include charging time, charging power, charged capacity, charging rate and user strategy; performing weighted calculation on the charging data of the charging pile, and calculating the usage priority corresponding to the charging pile may include: obtaining a first weight corresponding to the charging time, a second weight corresponding to the charging power, a third weight corresponding to the charged capacity, a fourth weight corresponding to the charging rate, and a fifth weight corresponding to the user strategy; performing weighted summation of the charging data of the charging pile based on the first weight, the second weight, the third weight, the fourth weight and the fifth weight, and calculating the usage priority corresponding to the charging pile.

[0049] More specifically, the usage priority P corresponding to the charging pile can be calculated according to the following calculation formula: priority :

[0050] P priority =ω1L duration +ω2E charge +ω3C current +ω4R avg +ω5U

[0051] ω1+ω2+ω3+ω4+ω5=1

[0052] Among them, ω1 is the first weight, ω2 is the second weight, ω3 is the third weight, ω4 is the fourth weight, and ω5 is the fifth weight. It should be noted that the above weights can be dynamically set according to the actual application scenarios and different load conditions to flexibly respond to different load conditions and ensure the intelligence and accuracy of the load control strategy.

[0053] As an example, when the first load of the power grid exceeds the rated load of the power grid, immediate measures need to be taken to reduce the load of the power grid to prevent equipment damage or safety hazards caused by power grid overload. At this time, the adjustment strategy for each weight can be: Since the charging piles corresponding to the fast charging mode consume more power, ω1, ω2, and ω3 are reduced, and ω4 is increased, so as to give priority to shutting down the charging piles corresponding to the fast charging mode and reducing more loads in a short time.

[0054] As another example, when the first load of the power grid exceeds the first preset load but does not exceed the rated load of the power grid, when the real-time load of the power grid is close to the rated load, it means that only a small amount of load regulation can be used to control the load to a safe range, and the load regulation strategy can be more flexible. Therefore, more charging piles can be allowed to perform charging tasks to ensure the user's charging experience. At this time, the adjustment strategy for each weight can be: if there is no need to consider reducing more loads in a short period of time, increase ω1, ω2, ω3 and reduce ω4.

[0055] It should be noted that the specific values ​​of the above-mentioned weights can be set according to the actual application scenarios of the power grid load control method based on charging pile priority provided in this application, and this application does not impose any restrictions on this.

[0056] In addition, the above embodiments only introduce the case where the charging data includes charging time, charging power, charged capacity, charging rate and user strategy. In actual applications, the charging data may include but is not limited to at least two of the charging time, charging power, charged capacity, charging rate and user strategy.

[0057] For example, the charging data may only include the charged capacity and the charging rate. In this case, the usage priority P corresponding to the charging pile may be calculated according to the following calculation formula: priority :

[0058] P priority =ω3C current +ω4R avg

[0059] ω3+ω4=1

[0060] Alternatively, the charging data may only include the charging time, charging power, charged capacity and charging rate. In this case, the usage priority P corresponding to the charging pile may be calculated according to the following calculation formula: priority :

[0061] P priority =ω1L duration +ω2E charge +ω3C current +ω4R avg

[0062] ω1+ω2+ω3+ω4=1

[0063] Step S104: sort each charging pile according to the usage priority to obtain a first sorting result.

[0064] Step S105 , selecting a first charging pile list from the first sorting result, so that the power grid stops supplying power to each charging pile in the first charging pile list.

[0065] Combine the following Figure 2 The specific process of executing the power supply stop strategy for the charging pile in this application is described and illustrated. Figure 2 is a flow chart of executing a power supply stop strategy for a charging pile according to an embodiment of the present application, such as Figure 2 As shown, in one embodiment, executing a strategy of stopping power supply to a charging pile includes:

[0066] Step S201, obtaining a first load of a power grid.

[0067] Step S202, determining whether the first load is greater than or equal to the first preset load. If yes, proceed to step S203; if no, proceed to step S207.

[0068] Step S203: Send the first alarm information.

[0069] In this embodiment, when the first load of the power grid (real-time load or current load) reaches or exceeds the first preset load (90% of the rated load of the power grid), an emergency alarm can be triggered and a first alarm message can be sent, which means that the power system is under extremely high pressure and load control measures must be taken immediately to prevent overload. Therefore, a power supply stop strategy can be executed on the charging pile at this time.

[0070] Emergency alarms are determined by the following formula:

[0071] L real-time ≥0.9*L rated ;

[0072] Among them, L real-time Indicates the first load of the power grid, L rated Indicates the rated load of the power grid. If the conditions are met, the first alarm information is generated. If multiple alarms are triggered, the same type of alarms can be automatically merged to reduce duplicate information and improve processing efficiency.

[0073] Step S204, acquiring charging data of each charging pile, and calculating the use priority of each charging pile based on the charging data, and sorting each charging pile according to the use priority to obtain a first sorting result.

[0074] Step S205, determine whether there is a charging pile that is performing a charging task. If yes, proceed to step S206; if no, end.

[0075] In this embodiment, the charging data of all charging piles powered by the power grid are obtained. In one embodiment, only the charging data of the charging piles powered by the power grid and performing the charging task can be obtained.

[0076] Specifically, all charging devices powered by the power grid can be queried to generate a device list S charging , the device list S charging Including charging piles that are performing charging tasks.

[0077] S charging = {P1, P2, ..., P n}

[0078] Among them, P i Indicates that the i-th device that is performing the charging task is charging.

[0079] You can list the device charging The charging piles in are sorted according to the usage priority to obtain the first sorting result.

[0080] Step S206: Select a first list of charging piles from the first sorting result, so that the power grid stops supplying power to each charging pile in the first list of charging piles.

[0081] In this embodiment, the power supply stop operation can be performed on the charging piles according to the usage priority from high to low until the real-time load of the power grid is lower than the first preset load.

[0082] In this embodiment, selecting a first charging pile list from the first sorting result so that the power grid performs a power supply stop operation on each charging pile in the first charging pile list may include:

[0083] Starting with the charging pile with the highest priority in the first sorting result, a preset number of charging piles are selected in descending order of priority to be added to the first charging pile list, so that the power grid stops supplying power to each charging pile in the first charging pile list.

[0084] In this embodiment, the preset number can be set by itself, for example, it can be set to 1, set to 2, and set to 3. The charging piles can be sorted in order of usage priority from high to low. Taking the preset number equal to 1 as an example, assuming that the first sorting result includes charging pile A, charging pile B, and charging pile C, among which charging pile A has the highest usage priority, then charging pile A can be added to the first charging pile list; or, when the preset number is equal to 2, if the usage priority of charging pile A is higher than that of charging pile B, and the usage priority of charging pile B is higher than that of charging pile C, then charging pile A and charging pile B can be added to the first charging pile list.

[0085] In addition, after the power grid executes the power supply stop operation on each charging pile in the first charging pile list, the method also includes: after the power grid executes the power supply stop operation on each charging pile in the first charging pile list, obtaining a third load of the power grid; when the third load of the power grid is greater than or equal to the first preset load, removing the charging piles that have been stopped from the power grid from the first sorting result, and clearing the first charging pile list; and starting with the charging pile with the highest priority in the first sorting result, selecting a preset number of charging piles in order from high to low priority to add to the first charging pile list, so that the power grid executes the power supply stop operation on each charging pile in the first charging pile list.

[0086] In this embodiment, the third load of the power grid (in Figure 2 In the figure, the third load of the power grid is not shown. The third load is still the real-time load or current load of the power grid and can therefore also be referred to as the first load of the power grid. If the real-time load of the power grid is still greater than or equal to the first preset load after the power supply stop operation is performed on each charging pile in the first charging pile list as described above (assuming that the first charging pile list includes charging pile A), then charging pile A can be removed from the first sorting result and the first charging pile list can be cleared. Subsequently, the above-mentioned step S206 is continued.

[0087] Specifically, after charging pile A is eliminated, the first sorting result includes charging pile B and charging pile C. Charging pile B has a higher priority than charging pile C, so charging pile B can be added to the first charging pile list so that the power grid stops supplying power to charging pile B. Repeat the above steps until the real-time load of the power grid is less than the first preset load.

[0088] In this embodiment, the power output of each charging pile can be automatically adjusted according to the charging data of the charging pile and the real-time load of the power grid. Through the dynamic load balancing algorithm, the power output of the charging pile can be reasonably allocated to avoid overloading of the local power grid due to excessive use of some charging piles. At the same time, for the power distribution problem when multiple charging piles are working at the same time, intelligent scheduling can be performed according to the use priority and charging demand of each charging pile.

[0089] Step S207, determine whether the first load is greater than or equal to the second preset load. If yes, proceed to step S208; if no, end.

[0090] Step S208: Send a second warning message.

[0091] In this embodiment, the alarm levels may be divided according to the first load of the power grid, and the system response efficiency may be improved by dynamically merging repeated alarm information.

[0092] Specifically, when the first load of the power grid reaches or exceeds the first preset load, an emergency alarm can be triggered and a first alarm message can be sent; when the first load of the power grid reaches or exceeds the second preset load, an important alarm can be triggered, indicating that the power grid load is close to a dangerous boundary. It should be noted that the second preset load is similar to the first preset load and can be 80% of the rated load of the power grid set in advance. In actual applications, the second preset load can be set according to actual needs, and this application does not limit it. In this embodiment and the following embodiments, the second preset load is 80% of the rated load of the power grid.

[0093] Important alarms are determined by the following formula:

[0094] L real-time ≥0.8*L rated ;

[0095] When an important alarm is triggered, a second alarm message can be generated to record the load change of the power grid at the current alarm level, and merge subsequent identical alarm messages to facilitate rapid response by operation and maintenance personnel.

[0096] In addition, if the first load of the power grid is less than the second preset load, it can be determined that the power system is in normal operation and there is no need to trigger an alarm. The judgment conditions are:

[0097] L real-time <0.8*L rated

[0098] In this state, the load changes of the power grid can continue to be monitored, but no alarm information will be generated to ensure the stability of the power system.

[0099] In this embodiment, in order to improve the efficiency of the alarm strategy, a dynamic alarm merging logic can be used. If the same alarm is generated multiple times in a short period of time (for example, consecutive first alarm messages or second alarm messages are generated in a preset time period (which can be 1 hour, 3 hours, 6 hours, 12 hours, etc.)), the alarm messages can be merged according to the following formula:

[0100]

[0101] Among them, A i Indicates the alarm information triggered for the i-th time, A merged This is the merged alarm information. The merging of alarm information can not only reduce redundancy, but also focus on the actual load problem and speed up the response to the problem.

[0102] Existing load control schemes for power grids usually rely only on the working status and historical charging data of a single device (for example, a charging pile), and fail to fully consider the overall energy consumption of the park and the linkage of various devices. When a problem occurs in a device, continuous alarm information may be generated, causing users to frequently receive the same or similar alarm information while the problem persists, which increases the burden of information processing. In addition, the current alarm processing mechanism is mostly post-processing, lacking real-time and early warning capabilities, and cannot effectively identify and respond to potential power safety risks in advance.

[0103] In this embodiment, a hierarchical alarm mechanism can be designed to ensure electricity safety. For mild overload and severe overload, classification and processing can be performed according to the urgency of the alarm. When the same charging pile triggers similar alarm information multiple times in a short period of time, the notifications can be automatically merged to reduce the interference of frequent alarms to operation and maintenance personnel and improve the efficiency of alarm processing.

[0104] In one embodiment, after causing the power grid to stop supplying power to each charging pile in the first charging pile list, the method further includes: obtaining a second load of the power grid; when the second load of the power grid is less than a second preset load, sorting the charging piles that have been stopped from supplying power by the power grid according to usage priority to obtain a second sorting result; selecting a second charging pile list from the second sorting result so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0105] In this embodiment, the second load of the power grid is the real-time load or current load of the power grid. The difference between it and the first load is that the first load is the real-time load or current load of the power grid obtained when the power grid has not stopped the power supply to each charging pile in the first charging pile list; and the second load is the real-time load or current load of the power grid obtained after the power grid stops the power supply to each charging pile in the first charging pile list.

[0106] The above steps describe the specific process of implementing the repowering strategy for the charging pile in this application. Figure 3 The specific process of executing the re-powering strategy for the charging pile in this application is described and illustrated. Figure 3 is a flow chart of executing a repowering strategy for a charging pile according to an embodiment of the present application, such as Figure 3 As shown, in one embodiment, executing a repowering strategy on a charging pile includes:

[0107] Step S301, obtaining a second load of the power grid.

[0108] Step S302, determine whether the second load is less than the second preset load. If yes, proceed to step S303; if no, end.

[0109] In this embodiment, the real-time load or current load of the electric meter can be monitored in real time. If the second load of the power grid is less than the second preset load, it is determined that the real-time load of the power grid meets the normal no-alarm conditions. At this time, the charging pile can be re-powered to allow the charging pile to be gradually restored.

[0110] Step S303: sort the charging piles that have been stopped from supplying power by the power grid according to their usage priorities to obtain a second sorting result.

[0111] Step S304: Select a second charging pile list from the second sorting result, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0112] In this embodiment, selecting a second charging pile list from the second sorting result so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list includes: starting from the charging pile with the lowest priority in the second sorting result, selecting a preset number of charging piles in order from low to high priority to add to the second charging pile list, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0113] In this embodiment, the preset number can be set by itself, for example, it can be set to 1, 2, or 3. Taking the preset number equal to 1 as an example, the charging piles can be sorted in order of use priority from low to high. Assuming that the second sorting result includes charging pile A, charging pile B, and charging pile C, among which charging pile A has the lowest use priority, then charging pile A can be added to the second charging pile list; or, when the preset number is equal to 2, if the use priority of charging pile A is lower than that of charging pile B, and the use priority of charging pile B is lower than that of charging pile C, then charging pile A and charging pile B can be added to the second charging pile list.

[0114] In addition, after the power grid re-executes the power supply operation on each charging pile in the second charging pile list, the method also includes: after the power grid re-executes the power supply operation on each charging pile in the second charging pile list, obtaining a fourth load of the power grid; when the fourth load of the power grid is less than the second preset load, removing the charging piles that have been re-powered by the power grid from the second sorting result, and clearing the second charging pile list; and starting from the charging pile with the lowest priority in the second sorting result, selecting a preset number of charging piles in order from low to high priority to add to the second charging pile list, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0115] In this embodiment, the fourth load of the power grid (in Figure 3 In the figure, the fourth load of the power grid is not shown. The fourth load is still the real-time load or current load of the power grid and can therefore also be referred to as the second load of the power grid). If the real-time load of the power grid is still less than the second preset load after re-powering each charging pile in the second charging pile list as described above (assuming that the second charging pile list includes charging pile A), charging pile A can be removed from the second sorting result and the second charging pile list can be cleared. Subsequently, the above step S303 is continued.

[0116] Specifically, after charging pile A is eliminated, the second sorting result includes charging pile B and charging pile C. Charging pile B has a lower usage priority than charging pile C. Then charging pile B can be added to the second charging pile list so that the power grid can re-power charging pile B. Repeat the above steps until the real-time load of the power grid is greater than or equal to the second preset load.

[0117] In this way, when the charging data of the charging pile includes charging time, charging power, charged capacity, charging rate and user strategy, the usage priority of the charging pile can be calculated based on the above items. Charging piles with high usage priority are usually charging piles that impose a greater load on the power grid, or have a higher charged amount for the charging tasks they perform, or have lower users' willingness to accept regulation. At this time, when the load on the power grid is heavy, the power supply to these charging piles with higher usage priority can be temporarily stopped to avoid overload of the local power grid due to excessive use of some charging piles.

[0118] In addition, after the power supply is stopped for some charging piles, the load of the power grid will be reduced. When the current load of the power grid is less than the second preset load, the charging piles that have been stopped can be restarted to improve the overall charging efficiency of the charging station (including multiple charging piles). The charging piles that have been stopped can be sorted according to their use priority, and the re-powering operation can be performed on the charging piles with lower use priority first. This is because the charging piles with lower use priority are often the charging piles with less load on the power grid, or the charging tasks they perform have a lower charged amount, or the user has a higher willingness to accept regulation. The priority re-powering operation on these charging piles will not seriously increase the load of the power grid. At the same time, the ability to give priority to charging power equipment with lower charged amounts can improve user satisfaction and the overall charging efficiency of the charging station.

[0119] In another case, when the charging data of the charging pile only includes the charging time and the charged capacity, the usage priority of the charging pile can be calculated based on the above items. Charging piles with high usage priority are usually those with a long charging time and the charging task they are executing is almost completed. At this time, when the load on the power grid is large, the power supply to these charging piles with higher usage priority can be temporarily stopped. In this case, due to the high charged capacity of the power equipment, users' acceptance of the load control strategy will also increase.

[0120] In addition, after stopping the power supply to some charging piles, the charging piles on which the power supply is stopped can be sorted according to their usage priority, and the re-powering operation can be performed preferentially on the charging piles with lower usage priority. This is because the charging piles with lower usage priority are often those with shorter charging times and whose charging tasks are not completed to a high degree. Giving priority to re-powering these charging piles can improve users' acceptance of the load regulation strategy, and also help improve the overall charging efficiency of the charging station.

[0121] Therefore, the power grid load control method based on the priority of charging piles provided by the embodiment of the present application can automatically adjust the power output of each charging pile according to various charging data of the charging pile (charging time, charging power, charged capacity, charging rate and user strategy) and the real-time load of the power grid. And according to the actual needs of the operation and maintenance personnel, the application scenario of the power grid load control method based on the priority of charging piles can adjust the content included in the charging data of the charging piles to be used, and through the dynamic load balancing algorithm, the power output of the charging piles can be reasonably allocated to avoid the overload of the local power grid caused by the excessive use of some charging piles. At the same time, for the power distribution problem when multiple charging piles work at the same time, intelligent scheduling can be performed according to the use priority and charging demand of each charging pile. For example, priority is given to stopping the power supply operation for charging piles with higher charging task completion progress, and priority is given to re-powering the charging piles with lower charging task completion progress, thereby improving the user's acceptance of the load control strategy, thereby improving the user's satisfaction with the charging station, and also helping to improve the overall charging efficiency of the charging station.

[0122] In one embodiment, a visual management platform can also be provided, and operation and maintenance personnel can intuitively view the real-time operating status, alarm information, and historical charging data of each charging pile through a graphical interface. The visual management platform supports remote control and deployment of the operating status of the charging pile, thereby improving the flexibility and efficiency of load regulation of the power grid.

[0123] Through the above steps S101 to S105, when the first load of the power grid is greater than or equal to the first preset load, the charging data of each charging pile is weightedly calculated to obtain the usage priority corresponding to each charging pile, and each charging pile is sorted according to the usage priority, and the charging pile that needs to stop the power supply operation is selected from the sorting result. In this way, each charging pile is regulated based on the usage priority of the charging pile, which can avoid the overload of the power grid caused by the excessive use of some charging piles, thereby reasonably allocating the load of the power grid, reducing the risk of power grid overload, and improving the safety of electricity use; and in this way, when the load of the power grid exceeds a certain level, the usage priority of each charging pile can be calculated in real time, instead of predicting the load based on the historical charging data of the charging pile, which can improve the real-time nature of the load regulation of the power grid, and then improve the accuracy of the load regulation of the power grid. Through this application, the problem of low load regulation accuracy of the power grid that supplies power to the charging piles in the related art is solved, and the technical effect of improving the load regulation accuracy of the power grid that supplies power to the charging piles is achieved.

[0124] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0125] Corresponding to the power grid load control method based on charging pile priority described in the above embodiment, Figure 4 A structural schematic diagram of a power grid load control device based on charging pile priority according to an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0126] See also Figure 4 The power grid load control device 4 based on charging pile priority includes: a load acquisition module 40, which is used to acquire the first load of the power grid, wherein the power grid is used to supply power to multiple charging piles; a data acquisition module 41, which is used to acquire the charging data of each charging pile when the first load of the power grid is greater than or equal to the first preset load, wherein the charging data includes at least two of the following items: charging time, charging power, charged capacity, and charging rate; a calculation module 42, which is used to perform weighted calculation on each charging data of the charging pile to calculate the usage priority corresponding to the charging pile; a sorting module 43, which is used to sort each charging pile according to the usage priority to obtain a first sorting result; an execution module 44, which is used to select a first charging pile list from the first sorting result, so that the power grid executes a power supply stop operation on each charging pile in the first charging pile list.

[0127] In one embodiment, the load acquisition module 40 is also used to acquire a second load of the power grid; the sorting module 43 is also used to sort the charging piles that have been stopped from supplying power by the power grid according to their usage priority to obtain a second sorting result when the second load of the power grid is less than a second preset load; the execution module 44 is also used to select a second charging pile list from the second sorting result so that the power grid can re-execute the power supply operation on each charging pile in the second charging pile list.

[0128] In one embodiment, the execution module 44 is also used to start from the charging pile with the highest priority in the first sorting result, and select a preset number of charging piles in order of priority from high to low to add to the first charging pile list, so that the power grid executes the power supply stop operation for each charging pile in the first charging pile list.

[0129] In one embodiment, the load acquisition module 40 is also used to obtain the third load of the power grid after the power grid executes the power supply stop operation on each charging pile in the first charging pile list; the execution module 44 is also used to remove the charging piles that have been stopped from the first sorting result by the power grid when the third load of the power grid is greater than or equal to the first preset load, and clear the first charging pile list; and starting from the charging pile with the highest priority in the first sorting result, select a preset number of charging piles in order from high to low priority to add to the first charging pile list, so that the power grid executes the power supply stop operation on each charging pile in the first charging pile list.

[0130] In one embodiment, the execution module 44 is also used to start from the charging pile with the lowest priority in the second sorting result, and select a preset number of charging piles in order from low to high priority to add to the second charging pile list, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0131] In one embodiment, the load acquisition module 40 is also used to obtain the fourth load of the power grid after the power grid re-executes the power supply operation on each charging pile in the second charging pile list; the execution module 44 is also used to remove the charging piles that have been re-powered by the power grid from the second sorting result and clear the second charging pile list when the fourth load of the power grid is less than the second preset load; and starting from the charging pile with the lowest priority in the second sorting result, select a preset number of charging piles in order from low to high priority to add to the second charging pile list, so that the power grid re-executes the power supply operation on each charging pile in the second charging pile list.

[0132] In one embodiment, the charging data includes charging time, charging power, charged capacity, charging rate and user strategy; the calculation module 42 is also used to obtain a first weight corresponding to the charging time, a second weight corresponding to the charging power, a third weight corresponding to the charged capacity, a fourth weight corresponding to the charging rate, and a fifth weight corresponding to the user strategy; based on the first weight, the second weight, the third weight, the fourth weight and the fifth weight, the charging data of the charging pile are weighted and summed to calculate the usage priority corresponding to the charging pile.

[0133] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0134] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be 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. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0135] Figure 5 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application. Figure 5 As shown, the terminal device 5 includes: at least one processor 50 ( Figure 5 Only one is shown in the figure) a processor, a memory 51, and a computer program 52 stored in the memory 51 and executable on at least one processor 50. When the processor 50 executes the computer program 52, the steps in any of the above-mentioned embodiments of the method for controlling power grid load based on charging pile priority are implemented.

[0136] The terminal device 5 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device 5 may include but is not limited to a processor 50 and a memory 51. It is understood by those skilled in the art that Figure 5 It is only an example of the terminal device 5 and does not constitute a limitation on the terminal device 5. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, etc.

[0137] The processor 50 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0138] In some embodiments, the memory 51 may be an internal storage unit of the terminal device 5, such as a hard disk or memory of the terminal device 5. In other embodiments, the memory 51 may also be an external storage device of the terminal device 5, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal device 5. In other embodiments, the memory 51 may also include both an internal storage unit and an external storage device of the terminal device 5. The memory 51 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as program codes of a computer program 52. The memory 51 may also be used to temporarily store data that has been output or is to be output.

[0139] An embodiment of the present application further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps in the above-mentioned embodiments of the power grid load control method based on the priority of charging piles.

[0140] An embodiment of the present application provides a computer program product. When the computer program product runs on a mobile terminal, the mobile terminal can implement the steps in the above-mentioned embodiments of the power grid load control method based on the priority of charging piles when executing the computer program product.

[0141] The present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the camera device / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a disk or an optical disk.

[0142] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0143] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0144] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are only schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0145] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0146] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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 embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for controlling power grid load based on charging pile priority, characterized in that: include: Acquire a first load of a power grid, wherein the power grid is used to supply power to a plurality of charging piles; When the first load of the power grid is greater than or equal to a first preset load, acquiring charging data of each charging pile, wherein the charging data includes at least two of the following items: charging duration, charging power, charged capacity, and charging rate; Performing weighted calculation on each charging data of the charging pile to obtain a usage priority corresponding to the charging pile; Sorting each of the charging piles according to the usage priority to obtain a first sorting result; A first charging pile list is selected from the first sorting results, so that the power grid stops supplying power to each of the charging piles in the first charging pile list.

2. The method according to claim 1, characterized in that After causing the power grid to stop supplying power to each of the charging piles in the first charging pile list, the method further includes: acquiring a second load of the power grid; When the second load of the power grid is less than a second preset load, the charging piles that have been stopped from supplying power by the power grid are sorted according to the usage priority to obtain a second sorting result; A second charging pile list is selected from the second sorting result, so that the power grid re-performs a power supply operation on each of the charging piles in the second charging pile list.

3. The method according to claim 1 or 2, characterized in that: Selecting a first list of charging piles from the first sorting results so that the power grid stops supplying power to each of the charging piles in the first list of charging piles includes: Starting from the charging pile with the highest usage priority in the first sorting result, a preset number of the charging piles are selected in order of the usage priority from high to low to add to the first charging pile list, so that the power grid stops power supply to each of the charging piles in the first charging pile list.

4. The method according to claim 3, characterized in that After causing the power grid to stop supplying power to each of the charging piles in the first charging pile list, the method further includes: After the power grid stops supplying power to each of the charging piles in the first charging pile list, obtaining a third load of the power grid; When the third load of the power grid is greater than or equal to the first preset load, the charging piles that have been stopped from power supply by the power grid are eliminated from the first sorting result, and the first charging pile list is cleared; and starting from the charging pile with the highest usage priority in the first sorting result, a preset number of the charging piles are selected in descending order of usage priority to be added to the first charging pile list, so that the power grid stops power supply to each of the charging piles in the first charging pile list.

5. The method according to claim 2, characterized in that: Selecting a second list of charging piles from the second sorting result so that the power grid re-performs a power supply operation on each of the charging piles in the second list of charging piles includes: Starting from the charging pile with the lowest usage priority in the second sorting result, a preset number of the charging piles are selected in order from low to high usage priority to be added to the second charging pile list, so that the power grid re-executes the power supply operation on each of the charging piles in the second charging pile list.

6. The method according to claim 5, characterized in that After enabling the power grid to re-power each of the charging piles in the second charging pile list, the method further includes: After the power grid re-performs a power supply operation on each of the charging piles in the second charging pile list, obtaining a fourth load of the power grid; When the fourth load of the power grid is less than the second preset load, the charging piles that have been re-powered by the power grid are eliminated from the second sorting result, and the second charging pile list is cleared; and starting from the charging pile with the lowest usage priority in the second sorting result, a preset number of the charging piles are selected in order from low to high in the usage priority to add to the second charging pile list, so that the power grid re-powers each of the charging piles in the second charging pile list.

7. The method according to claim 1 or 2, characterized in that: The charging data includes charging time, charging power, charged capacity, charging rate and user strategy; The weighted calculation is performed on each charging data of the charging pile, and the usage priority corresponding to the charging pile is calculated to include: Obtaining a first weight corresponding to the charging duration, a second weight corresponding to the charging power, a third weight corresponding to the charged capacity, a fourth weight corresponding to the charging rate, and a fifth weight corresponding to the user policy; Based on the first weight, the second weight, the third weight, the fourth weight and the fifth weight, a weighted sum is performed on each charging data of the charging pile to calculate the usage priority corresponding to the charging pile.

8. A power grid load control device based on charging pile priority, characterized in that: include: A load acquisition module, used to acquire a first load of a power grid, wherein the power grid is used to supply power to a plurality of charging piles; A data acquisition module, configured to acquire charging data of each of the charging piles when the first load of the power grid is greater than or equal to a first preset load, wherein the charging data includes at least two of the following items: charging duration, charging power, charged capacity, and charging rate; A calculation module, used for performing weighted calculation on each charging data of the charging pile to calculate the usage priority corresponding to the charging pile; A sorting module, used to sort each of the charging piles according to the usage priority to obtain a first sorting result; An execution module is used to select a first charging pile list from the first sorting result, so that the power grid performs a power supply stop operation on each of the charging piles in the first charging pile list.

9. A terminal 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 power grid load control method based on charging pile priority as described in any one of claims 1 to 7 is implemented.

10. A computer program product, characterized in that It includes a computer program, which, when executed, enables the power grid load regulation method based on charging pile priority as described in any one of claims 1 to 7 to be executed.

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