Charging control method and device, equipment and storage medium

Abstract

The invention discloses a charging control method and device, equipment and a storage medium, and the charging control method comprises the steps: obtaining the pile demand power of each charging pile when charging station limitation information sent by a far-end control platform is received; determining a charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated work information corresponding to each charging pile and the charging station limitation information; and performing charging control on each charging pile in the charging station according to the charging adjustment coefficient of each charging pile. Through the above mode, the adjustment coefficient of each charging pile is dynamically calculated, power distribution is optimized to avoid overload, the method adapts to complex environments such as large-scale charging stations and district distributed pile groups, multi-scene dynamic adaptation and localization reliable control are realized, the system deployment complexity is significantly reduced, the resource utilization rate and the power grid friendliness are improved, and the method is suitable for large-scale charging stations, district distributed pile groups and other complex environments. And while the charging efficiency of the user is ensured, the power grid dispatching requirement is met, and the dependence on a centralized background is reduced.

Description

Technical Field

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

[0002] At present, the orderly charging control of electric vehicles mainly relies on a centralized background system to adjust the power of a single charging gun. For example, instructions are sent through an operation platform or an orderly charging controller is deployed separately, but there are significant limitations: First, such methods cannot achieve overall power coordination for large charging stations, pile groups, or distributed AC piles in communities, resulting in unreasonable distribution of charging resources when the distribution capacity is limited; Second, the existing solutions highly rely on real-time interaction with the grid dispatching platform and cannot ensure charging safety and orderliness when offline or the network is interrupted; In addition, unified control for multiple scenarios (such as charging stations, residential communities, and mixed power usage environments) requires comprehensive calculations on a high-cost cloud platform and is difficult to promote. Therefore, how to achieve coordinated power regulation at multiple levels of charging stations, pile groups, and charging piles without relying on a complex cloud architecture to adapt to diverse scenarios and improve resource utilization and grid friendliness has become a technical problem to be solved urgently.

[0003] The above content is only used to assist in understanding the technical solution of the present application and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of the present application is to provide a charging control method, device, equipment, and storage medium, aiming to solve the technical problems that the existing orderly charging control methods cannot achieve flexible, efficient, and adaptive power distribution in multi-level scenarios such as grid dispatching, charging stations, charging pile groups, and single piles, and rely on centralized background control.

[0005] To achieve the above purpose, the present application proposes a charging control method, and the method includes:

[0006] When receiving the charging station limit information sent by the remote control platform, obtain the pile demand power of each charging pile;

[0007] Determine the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the corresponding rated working information of each charging pile, and the charging station limit information;

[0008] Perform charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

[0009] In one embodiment, the step of determining the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the corresponding rated working information of each charging pile, and the charging station limit information includes:

[0010] Determine the transformer limit power of each charging pile group and the rated power of each charging pile according to the rated working information corresponding to each charging pile;

[0011] Determine the actual demand power of each charging pile according to the rated power of each charging pile and the demand power of each charging pile;

[0012] Determine the grouped demand power of each charging pile group according to the actual demand power of each charging pile and the transformer limit power of each charging pile group;

[0013] Determine the charging station demand power according to the grouped demand power of each charging pile group;

[0014] Perform coefficient calculation based on the charging station limit power corresponding to the charging station limit information, the charging station demand power, the actual demand power of each charging pile, the transformer limit power of each charging pile group, the demand power of each charging pile, and the rated power of each charging pile, and determine the charging adjustment coefficient of each charging pile.

[0015] In one embodiment, the step of performing coefficient calculation based on the charging station limit power corresponding to the charging station limit information, the charging station demand power, the actual demand power of each charging pile, the transformer limit power of each charging pile group, the demand power of each charging pile, and the rated power of each charging pile, and determining the charging adjustment coefficient of each charging pile includes:

[0016] Compare the charging station limit power corresponding to the charging station limit information with the charging station demand power, and determine the station power adjustment coefficient according to the first comparison result;

[0017] Perform grouped power calculation according to the actual demand power of each charging pile to determine the pending demand power of each charging pile group;

[0018] Compare the pending demand power of each charging pile group with the transformer limit power of each charging pile group, and determine the grouped pile adjustment coefficient of each charging pile group according to the second comparison result;

[0019] Compare the demand power of each charging pile with the rated power of each charging pile, and determine the pile adjustment coefficient of each charging pile according to the third comparison result;

[0020] Perform coefficient calculation based on the station power adjustment coefficient, the grouped pile adjustment coefficient of each charging pile group, and the pile adjustment coefficient of each charging pile, and determine the charging adjustment coefficient of each charging pile.

[0021] In one embodiment, the step of determining the station power adjustment coefficient according to the first comparison result includes:

[0022] When the first comparison result indicates that the charging station limit power is greater than or equal to the charging station demand power, determine the station power adjustment coefficient as the preset station adjustment coefficient;

[0023] When the first comparison result indicates that the charging station limit power is less than the charging station demand power, perform coefficient calculation based on the charging station limit power and the charging station demand power to determine the station power adjustment coefficient.

[0024] In one embodiment, the step of controlling the charging of each charging pile in the charging station according to the charging adjustment coefficient of each charging pile includes:

[0025] Determine the rated power of each charging pile according to the rated working information corresponding to each charging pile;

[0026] Perform calculation based on the rated power of each charging pile and the charging adjustment coefficient of each charging pile to determine the actual output power of each charging pile;

[0027] Control each charging pile existing in the charging station to charge according to the actual output power of each charging pile.

[0028] In one embodiment, after the step of controlling the charging of each charging pile in the charging station according to the charging adjustment coefficient of each charging pile, it further includes:

[0029] Obtain the current demand power of the requested charging gun corresponding to each charging pile;

[0030] Determine the current charging state of each charging pile according to the current demand power of the requested charging gun corresponding to each charging pile and the current available power of each charging pile;

[0031] When the current charging state of each charging pile is the preset state, perform charging response control on the requested charging gun corresponding to each charging pile according to the charging control strategy.

[0032] In one embodiment, after the step of controlling the charging of each charging pile in the charging station according to the charging adjustment coefficient of each charging pile, it further includes:

[0033] When the charging types of the charging piles existing in the charging station are of the preset type, send the charging adjustment coefficients of the charging piles to the charging piles, so that the charging piles determine the gun adjustment coefficients of the operating charging guns according to the gun charging information and the charging adjustment coefficients of the operating charging guns, and perform charging control on the operating charging guns according to the gun adjustment coefficients of the charging guns.

[0034] In addition, to achieve the above object, the present application also proposes a charging control device, where the charging control device includes: an acquisition module, configured to acquire the pile demand power of each charging pile when receiving the charging station limit information sent by the remote control platform;

[0035] A processing module, configured to determine a charging adjustment coefficient for each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information;

[0036] A control module, configured to perform charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

[0037] In addition, to achieve the above object, the present application further provides a charging control device, where the device includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the charging control method as described above.

[0038] In addition, to achieve the above object, the present application further provides a storage medium, where the storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the charging control method as described above are implemented.

[0039] In addition, to achieve the above object, the present application further provides a computer program product, where the computer program product includes a computer program, and when the computer program is executed by a processor, the steps of the charging control method as described above are implemented.

[0040] The present application provides a charging control method. When receiving the charging station limit information sent by the remote control platform, the present application obtains the pile demand power of each charging pile; determines the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information; and performs charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile. In this way, based on the charging station limit information, the charging pile demand power, and the rated parameters, the adjustment coefficient of each charging pile is dynamically calculated to optimize the power distribution to avoid overload, adapt to complex environments such as large charging stations and community distributed pile groups, realize multi-scenario dynamic adaptation and local reliable control, and ensure charging safety and orderliness even when offline or the network is interrupted; at the same time, without relying on a high-cost cloud platform, the system deployment complexity is significantly reduced, the resource utilization rate and grid friendliness are improved, while ensuring the charging efficiency of users, meeting the grid dispatching requirements and reducing the dependence on the centralized background. Description of the Drawings

[0041] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0042] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic flowchart provided for the first embodiment of the charging control method of the present application;

[0044] Figure 2 It is a schematic overall architecture diagram of the charging control system provided for the first embodiment of the present application;

[0045] Figure 3 It is a schematic charging architecture diagram of the charging station provided for the first embodiment of the present application;

[0046] Figure 4 It is a schematic local orderly charging control architecture diagram provided for the first embodiment of the present application;

[0047] Figure 5 It is a schematic flowchart provided for the second embodiment of the charging control method of the present application;

[0048] Figure 6 It is a schematic flowchart provided for the third embodiment of the charging control method of the present application;

[0049] Figure 7 It is a schematic brief flowchart of the charging control method provided for the third embodiment of the present application;

[0050] Figure 8 It is a schematic module structure diagram of the charging control device in the embodiment of the present application;

[0051] Figure 9 It is a schematic device structure diagram of the hardware operating environment involved in the charging control method in the embodiment of the present application.

[0052] The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0053] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0054] To better understand the technical solutions of the present application, the following will be described in detail in combination with the drawings in the specification and the specific implementation manners.

[0055] The main solution of the embodiment of the present application is: when receiving the charging station limit information sent by the remote control platform, obtain the pile demand power of each charging pile; determine the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information; and perform charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

[0056] In current large-scale centralized DC charging stations, due to factors such as distribution capacity limitations, grid load scheduling, and the sharing of power by charging demands and other loads, not all charging pile devices can charge according to vehicle demands. In order to achieve grid friendliness and maximize the satisfaction of vehicle charging demands, it is necessary to perform orderly charging control on the charging piles. There are a large number of distributed AC charging piles in residential communities. These piles share the community transformer with residential electricity. To ensure the safety of residential electricity, orderly charging needs to be achieved in residential communities. Since a charging pile consists of multiple charging guns, the existing operation backends of various charging piles generally adjust the power for the guns, making it difficult to achieve orderly charging for a range such as a charging station or a residential community.

[0057] In the past, the orderly charging scheduling method issued charging adjustment commands for the guns through the charging operation backend, and could not effectively limit the power of the entire pile. This method could not adjust the power of the entire pile, but only for a single gun. In addition, the operation platform could not interact with the grid scheduling platform and could not achieve orderly control according to the scheduling requirements. Moreover, the existing operation platform to achieve orderly charging control involves the needs of various parties such as the distribution network entity, the charging pile operation entity, the charging pile owner, and the charging user. Orderly charging will reduce the utilization rate of the charging pile, which does not meet the requirement of maximizing the charging operation efficiency.

[0058] Currently, there is a control method: outside the charging pile operation platform, the power supply bureau separately uses a separate orderly charging controller to connect to the charging pile, and the orderly charging control is connected to the corresponding management platform, and the power adjustment control is achieved by issuing adjustment commands through the platform. However, this method can only adjust the power of each gun of a single charging pile and cannot achieve orderly charging control for large charging stations, group charging groups, and a large number of distributed AC piles in communities. At the same time, this orderly charging depends on the background control and cannot achieve local, distributed, and off-grid operation deployment. And the scope of use is small. The specific reasons are as follows: 1. The on-site environment is complex. When charging, it is necessary to fully consider factors such as the type of charging pile, the source of the load, the sharing of production / residential electricity, and the orderly charging goal (peak shaving and valley filling / cost saving). It is difficult for the operation platform to establish a unified model to adapt to all application scenarios; 2. Some charging piles are not connected to the operation platform (such as personal piles in residential communities) and cannot accept remote control.

[0059] At present, State Grid has launched charging boxes for community users. By connecting the boxes to the control background, the background issues power adjustment commands to achieve orderly charging. This method is only applicable to centralized parking lots in communities and cannot adapt to large charging stations and charging pile groups.

[0060] At the same time, the existing technology also proposes to cooperate with the cloud platform to achieve this. The cloud platform needs to obtain information about each charging pile and each charging gun, and combine it with the power grid remote acquisition system to comprehensively calculate and real-time control the charging power. This solution has a high cost, is difficult to implement specifically, and is not conducive to popularization and use.

[0061] Based on the charging station limit information, the required power and rated parameters of the charging piles, this application dynamically calculates the adjustment coefficients of each charging pile, optimizes the power distribution to avoid overload, adapts to complex environments such as large charging stations and distributed charging pile groups in communities, realizes multi-scenario dynamic adaptation and local reliable control, and can still ensure charging safety and orderliness when offline or the network is interrupted; at the same time, it does not rely on a high-cost cloud platform, significantly reduces the complexity of system deployment, improves resource utilization and grid friendliness, and while ensuring the charging efficiency of users, meets the grid dispatching requirements and reduces the dependence on the centralized background.

[0062] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication, and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device, a charging control device, etc. that can implement the above functions. Hereinafter, taking the charging control device as an example, this embodiment and the following embodiments will be described.

[0063] Based on this, the embodiment of this application provides a charging control method, referring to Figure 1 , Figure 1 which is the flowchart of the first embodiment of the charging control method of this application.

[0064] In this embodiment, the charging control method includes steps S10 to S30:

[0065] Step S10, when receiving the charging station limit information sent by the remote control platform, obtain the required power of each charging pile.

[0066] It should be noted that the execution subject of the method in this embodiment is the charging control device in the charging control system. The charging control device includes an orderly charging controller, and the orderly charging controller can be a physical device or a logical unit. This embodiment does not limit this. The overall architecture of the charging control system is as Figure 2 shown, and the orderly charging architecture of each charging station is as Figure 3As shown in the figure, the charging control system includes a remote control platform (i.e., the orderly charging platform), a charging operation platform, charging control equipment, and at least one charging station. Each charging station has a corresponding charging control device. There are multiple charging piles in the charging station. For the convenience of management, the charging piles in the charging station can be grouped. There are multiple charging piles in each group, and each group corresponds to an electricity meter and a transformer. The transformer supplies power to the multiple charging piles in the group. The charging control device can be a certain charging pile in the charging station or a device independent of the charging station. This embodiment does not limit this.

[0067] In this embodiment, the orderly charging platform can be a power distribution system platform, which is used to issue the maximum power limit and the station negative control curve of the charging station. The maximum limit power can be obtained based on the local power distribution capacity limit of the charging station, and the maximum limit power can change in real time. At the same time, based on the adjustment instructions issued by the power grid or the virtual power plant, the orderly charging platform issues the available power of the charging station in real time. The charging operation platform is used to issue charging start / stop commands to the charging piles after receiving user charging requests, and control the charging piles to start or stop charging. The charging operation platform is not responsible for power regulation. The orderly charging platform and the charging operation platform are two logically independent management platforms and can be integrated on the same physical platform.

[0068] It should be noted that the charging station limit information includes but is not limited to the maximum limit power P set (i.e., a temporarily set variable) and the station negative control curve. The station negative control curve refers to the control strategy curve in which the charging station (or the power load management system) dynamically adjusts the power output of the charging piles according to the power grid dispatching instructions, the charging station capacity limit, and the real-time power consumption demand. According to the station negative control curve, the current limit power P sc .

[0069] It can be understood that the charging control device can communicate with each charging pile in the charging station. In the offline mode, the local orderly charging control system is as Figure 4 shown. The red line is the power cable, which can be DC or AC. This embodiment does not limit this; the red line is the communication line, which is used to realize the communication interaction between the charging pile - the orderly charging controller and the orderly charging controller - the transformer. The communication method can be wireless communication or through a wired connection. This embodiment does not limit this.

[0070] In a specific implementation, when there is a vehicle charging through a charging pile and the charging pile is a DC pile, since the DC pile can communicate with the vehicle and can obtain the vehicle charging demand, based on the vehicle charging demand, the pile demand power P of each charging pile can be determined reapdWhen there is a vehicle charging through a charging pile and the charging pile is an AC pile, since the AC pile cannot obtain the vehicle charging demand, the charging pile can calculate and report the pile demand power of the charging pile in real time through the built-in current sensor and voltage sampling circuit, or install current transformers (CTs), voltage transformers (VTs) or smart meters on each output loop (corresponding to each charging pile) of the transformer to monitor the current, voltage and power of each loop in real time, so as to obtain the pile demand power of each charging pile. In this embodiment, the pile demand power of each charging pile is also the requested output power of each charging pile, not the actual output power of each charging pile.

[0071] Step S20: Determine the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information.

[0072] It should be noted that the rated working information includes, but is not limited to, the pile rated power P of each charging pile reapr , and the transformer limit power P of the transformer of the group where the charging pile is located gl . Since the pile demand power of each charging pile may exceed the limit of the total power of the charging station, therefore, on the premise of meeting the limit of the total power of the charging station, the charging control device calculates the charging adjustment coefficient β of each charging pile in combination with the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information. The charging adjustment coefficient of each charging pile is used to dynamically adjust the output power of each charging pile to ensure fairness, safety and grid friendliness.

[0073] Step S30: Perform charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

[0074] It should be noted that the charging control device will send the charging adjustment coefficient β of each charging pile to each charging pile, and the charging pile will adjust the output power according to the charging adjustment coefficient.

[0075] In a feasible implementation manner, step S30 may include steps A11 to A13:

[0076] Step A11: Determine the pile rated power of each charging pile according to the rated working information corresponding to each charging pile.

[0077] Step A12: Calculate according to the pile rated power of each charging pile and the charging adjustment coefficient of each charging pile to determine the actual output power of each charging pile.

[0078] It should be noted that by extracting the rated working information corresponding to each charging pile, the pile rated power P of each charging pile can be clarified reapr . For each charging pile, the charging adjustment coefficient β and the pile rated power P reaprMultiply them, and the result obtained after multiplication is the actual output power of the charging pile.

[0079] Step A13: Control each charging pile existing in the charging station to charge according to the actual output power of each charging pile.

[0080] It should be noted that after determining the actual output power of each charging pile, it is necessary to control each charging pile to output power according to the actual output power and charge the vehicle connected to the charging pile.

[0081] In a feasible implementation manner, after step S30, it may further include: when the charging types of each charging pile existing in the charging station are preset types, send the charging adjustment coefficients of each charging pile to each charging pile, so that the charging pile determines the gun adjustment coefficient of each charging gun according to the gun charging information of each operating charging gun and the charging adjustment coefficient, and perform charging control on each operating charging gun according to the gun adjustment coefficient of each charging gun.

[0082] It should be noted that the preset type is the DC charging pile type in this embodiment, and the charging types include the DC charging pile type and the AC charging pile type. The gun charging information includes but is not limited to the gun demand power P gunDem (i.e., the vehicle demand power), the number of occupied power modules, the power module model, the charging voltage of the power module, etc. All parameters in the gun charging information are known conditions. The operating charging gun refers to the charging gun that has been started and is supplying power to the vehicle.

[0083] It can be understood that for each charging pile: after the charging pile obtains the charging adjustment coefficient β, the charging control unit CCU corresponding to each operating charging gun in the charging pile will, according to the gun demand power P gunDem , the number of occupied power modules, and the charging voltage of the power module, determine the rated power P of the occupied module of each operating charging gun gunRate . For example, when the current voltage is 500V and it is in the 20kW constant power section, charging gun A occupies 2 groups of a total of 4 power modules, and the rated power P of the occupied module of the charging gun is obtained gunRate = 4 × 20kW = 80kW.

[0084] In a specific implementation, for each charging pile: after the charging control unit CCU corresponding to each charging gun calculates the rated power P of the occupied module of each operating charging gun gunRate , combined with the charging adjustment coefficient β, the rated output power P of each charging gun can be calculated gunAgiRate = P gunRate · β. By comparing the rated output power P of each charging gun gunAgiRate and the gun demand power P of each charging gun gunDem, the gun adjustment coefficient μ of each charging gun can be calculated. In this embodiment, the calculation method of the gun adjustment coefficient μ can be specifically as follows

[0085]

[0086] It should be noted that for each charging pile: after the power control unit MNU in the charging pile obtains the gun adjustment coefficient sent by the charging control unit CCU corresponding to each charging gun, the gun adjustment coefficient μ of each charging gun and the rated output power P of each charging gun gunAgiRate are multiplied to obtain the actual output power of each charging gun, and the corresponding number of power modules is started according to the actual output power of each charging gun to supply power to each charging gun.

[0087] It can be understood that after the charging control device sends the charging adjustment coefficient of each charging pile to each charging pile, if the charging type of the charging pile is the AC pile charging type, the charging pile adjusts the control pilot signal line connected to the vehicle (the PWM signal on the Control Pilot line, and the vehicle terminal detects the PWM (Pulse Width Modulation) signal sent by the pile, and adjusts the charging power according to the duty cycle of the PWM to achieve power adjustment.

[0088] This embodiment provides a charging control method. In this embodiment, when receiving the charging station limit information sent by the remote control platform, the pile demand power of each charging pile is obtained; according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information, the charging adjustment coefficient of each charging pile is determined; and the charging control of each charging pile existing in the charging station is performed according to the charging adjustment coefficient of each charging pile. By the above method, based on the charging station limit information, the pile demand power and the rated parameters, the adjustment coefficient of each charging pile is dynamically calculated, the power distribution is optimized to avoid overload, and it adapts to complex environments such as large charging stations and distributed pile groups in communities, realizing multi-scenario dynamic adaptation and local reliable control. It can still ensure charging safety and orderliness when offline or the network is interrupted; at the same time, it does not need to rely on a high-cost cloud platform, significantly reduces the system deployment complexity, improves the resource utilization rate and grid friendliness, and while ensuring the user's charging efficiency, meets the grid dispatching requirements and reduces the dependence on the centralized background.

[0089] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar content as in the above-mentioned embodiment one can be referred to the above introduction and will not be repeated hereinafter. On this basis, please refer to Figure 5 , step S20, the charging control method further includes steps S21 to S25:

[0090] Step S21: Determine the transformer limit power of the group where each charging pile is located and the rated power of each charging pile according to the rated working information corresponding to each charging pile.

[0091] It should be noted that by extracting the rated working information corresponding to each charging pile, the rated power P of each charging pile can be determined. reapr and the transformer limit power P of the transformer of the group where each charging pile is located. gl . In this embodiment, the transformer limit power P gl needs to subtract the power corresponding to the offline part of this group.

[0092] Step S22: Determine the actual demand power of each charging pile according to the rated power of each charging pile and the demand power of each charging pile.

[0093] It should be noted that since the demand power of each charging pile may exceed the limit of the rated power of the pile, the rated power of the pile and the demand power of the pile are compared, and the actual demand power P of each charging pile can be determined through the comparison result. pd , the actual demand power of the pile is also the upper limit of the output power that each charging pile should output. In this embodiment, when the demand power P of the charging pile reapd is less than or equal to the rated power P of the pile reapr , then the actual demand power P of the charging pile pd is the demand power P of the pile reapd ; when the demand power P of the charging pile reapd is greater than the rated power P of the pile reapr , then the actual demand power P of the charging pile pd is the rated power P of the pile reapr .

[0094] Step S23: Determine the group demand power of the group where each charging pile is located according to the actual demand power of each charging pile and the transformer limit power of the group where each charging pile is located.

[0095] It should be noted that for the grouping information of the charging station, calculate the sum of the actual demand powers of all charging piles in each group, so as to obtain the demand power ∑P of the transformer of this group. pd . Since the demand power ∑P of the transformer of each group pd may exceed the transformer limit power P gl , the demand power ∑P of the transformer pd and the transformer limit power P gl are compared, and the actual demand power P of the transformer of each group can be determined through the comparison result. gd , the actual demand power P of the transformer gdThat is, the upper limit of the output power that each transformer should output. In this embodiment, when the required power ∑P of the transformer pd is less than or equal to the transformer limit power P gl , then the actual required power P of the transformer pd is the required power ∑P of the transformer pd ; when the required power ∑P of the transformer pd is greater than the transformer limit power P gl , then the actual required power P of the transformer pd is the transformer limit power P gl . In this embodiment, the grouped required power of each group where the charging piles are located refers to the actual required power P of the transformer of the group where the charging piles are located gd .

[0096] Step S24, determine the required power of the charging station according to the grouped required power of each group where the charging piles are located.

[0097] It should be noted that by summing the grouped required powers P gd of multiple groups where the charging piles are located, the total required power P of the charging station can be obtained sd = ∑P gd . In this embodiment, the required power of the charging station refers to the total required power P of the charging station sd .

[0098] Step S25, perform coefficient calculation according to the charging station limit power corresponding to the charging station limit information, the required power of the charging station, the actual required power of each charging pile, the transformer limit power of each group where the charging piles are located, the required power of each charging pile, and the rated power of each charging pile, and determine the charging adjustment coefficient of each charging pile.

[0099] It should be noted that on the premise of meeting the total power limit of the charging station, the charging control device needs to perform hierarchical calculations based on the charging station limit power, the required power of the charging station, the actual required power of each charging pile, the transformer limit power of each group where the charging piles are located, the required power of each charging pile, and the rated power of each charging pile, respectively calculate the power adjustment ratio coefficient of the charging station, the grouped pile adjustment ratio coefficient of each group, and the pile adjustment coefficient, and finally combine the above three ratio coefficient results to calculate the charging adjustment coefficient of each charging pile.

[0100] In this embodiment, in addition to the above method, other methods can also be used to calculate the charging adjustment coefficient, and this embodiment does not limit this.

[0101] In a feasible implementation manner, step S25 may include steps B11 to B14:

[0102] Step B11: Compare the charging station limit power corresponding to the charging station limit information with the charging station demand power, and determine the station power adjustment coefficient according to the first comparison result.

[0103] It should be noted that due to the maximum limit power P of the charging station in the charging station limit information set and the station negative control curve, determine the current limit power P at the current moment according to the station negative control curve sc . To ensure the safety of the charging station, it is necessary to compare the maximum limit power P of the charging station set with the current limit power P sc , and take the smaller value of the two as the charging station limit power of the charging station, that is, the charging station limit power P corresponding to the charging station limit information lim . In this embodiment, the current limit power P of the charging station at the current moment sc needs to subtract the power corresponding to the offline part of the whole station.

[0104] It can be understood that compare the charging station limit power P lim with the charging station demand power P sd to obtain the first comparison result reflecting the magnitude relationship between the two. Under different comparison results, there are different determination methods for the proportionality coefficient. Calculate the power adjustment proportionality coefficient α of the charging station based on the determination method corresponding to the first comparison result s . In this embodiment, the station power adjustment coefficient refers to the power adjustment proportionality coefficient α of the charging station s .

[0105] Step B12: Compare the pending demand power of each charging pile group with the transformer limit power of each charging pile group, and determine the group pile adjustment coefficient of each charging pile group according to the second comparison result.

[0106] It should be noted that the pending demand power of each charging pile group refers to the demand power ∑P of the transformer pd . Compare the pending demand power ΣP of each charging pile group pd with the transformer limit power P of each charging pile group gl to obtain the second comparison result reflecting the magnitude relationship between the two. Calculate the group power adjustment proportionality coefficient α of each charging pile group based on the determination method corresponding to the second comparison result g . In this embodiment, the group pile adjustment coefficient of each charging pile group refers to the group power adjustment proportionality coefficient α of each charging pile group g .

[0107] In this embodiment, the specific calculation method of the group power adjustment proportionality coefficient α g is as follows:

[0108]

[0109] Step B13: Compare the pile demand power of each charging pile with the pile rated power of each charging pile, and determine the pile adjustment coefficient of each charging pile according to the third comparison result.

[0110] It should be noted that the pile demand power P of each charging pile reapd and the pile rated power P of each charging pile reapr are compared to obtain the third comparison result reflecting the magnitude relationship between the two. Calculate the pile adjustment coefficient α of each charging pile based on the determination method corresponding to the third comparison result p .

[0111] In this embodiment, the specific calculation method of the pile adjustment coefficient α of each charging pile is as follows: p The specific calculation method is as follows:

[0112]

[0113] Step B14: Perform coefficient calculation according to the station power adjustment coefficient, the group pile adjustment coefficient of each group where the charging pile is located, and the pile adjustment coefficient of each charging pile, and determine the charging adjustment coefficient of each charging pile.

[0114] It should be noted that multiply the station power adjustment coefficient α s , the group pile adjustment coefficient α of each group where the charging pile is located g and the pile adjustment coefficient α of each charging pile p to obtain the charging adjustment coefficient β actually sent to the charging pile.

[0115] In a feasible implementation manner, step B11 may include steps C11 to C12:

[0116] Step C11: When the first comparison result is that the charging station limit power is greater than or equal to the charging station demand power, determine the station power adjustment coefficient as the preset station adjustment coefficient.

[0117] It should be noted that the preset station adjustment coefficient is set to 100% in this embodiment. When the charging station limit power P lim is greater than or equal to the charging station demand power P sd , the station power adjustment coefficient α s is 100%.

[0118] Step C12: When the first comparison result is that the charging station limit power is less than the charging station demand power, perform coefficient calculation according to the charging station limit power and the charging station demand power to determine the station power adjustment coefficient.

[0119] It should be noted that when the charging station limit power P lim is less than the charging station demand power P sd , the station power adjustment coefficient α s = P lim / P sd × 100%.

[0120] This embodiment provides a charging control method. In this embodiment, the transformer limit power of the group where each charging pile is located and the rated power of each charging pile are determined according to the rated working information corresponding to each charging pile; the actual demand power of each charging pile is determined according to the rated power of each charging pile and the demand power of each charging pile; the group demand power of the group where each charging pile is located is determined according to the actual demand power of each charging pile and the transformer limit power of the group where each charging pile is located; the charging station demand power is determined according to the group demand power of the group where each charging pile is located; coefficient calculation is performed according to the charging station limit power corresponding to the charging station limit information, the charging station demand power, the actual demand power of each charging pile, the transformer limit power of the group where each charging pile is located, the demand power of each charging pile, and the rated power of each charging pile to determine the charging adjustment coefficient of each charging pile. Through the above method, multi-level system control is achieved, ensuring the safety and fairness of the charging station.

[0121] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar content as in the above-mentioned first and second embodiments can be referred to the above introduction and will not be repeated hereinafter. On this basis, please refer to Figure 6 , after step S30, the charging control method further includes steps S01 to S03:

[0122] Step S01, obtain the current demand power of the requested charging gun corresponding to each charging pile.

[0123] Step S02, determine the current charging state of each charging pile according to the current demand power of the requested charging gun corresponding to each charging pile and the current available power of each charging pile.

[0124] It should be noted that the requested charging gun refers to the charging gun that is connected first and needs to be powered. For each charging pile: obtain the current demand power of the requested charging gun, and the current available power of each charging pile refers to the remaining power after each charging pile supplies power to the charging guns in operation. Compare the magnitude relationship between the current demand power of the requested charging gun and the current available power. When the current demand power of the charging gun is less than or equal to the current available power, it indicates that the current charging state of the charging pile is a power sufficient state; when the current demand power of the charging gun is greater than the current available power, it indicates that the current charging state of the charging pile is a power insufficient state.

[0125] Step S03: When the current charging state of each charging pile is the preset state, perform charging response control on the requested charging guns corresponding to the charging piles according to the charging control strategy.

[0126] It should be noted that the preset state refers to the power shortage state. When the current charging state of the charging pile is the power shortage state, it indicates that the current available power of the charging pile is insufficient. At this time, the charging response control should be performed on the requested charging guns according to the charging control strategy, and the charging guns in operation should be adjusted.

[0127] It can be understood that the charging control strategy includes the control strategy for AC charging piles and the control strategy for DC charging piles. The control strategy for DC charging piles includes but is not limited to any of the following methods: 1. Bulk charging operation strategy: When the battery power of a vehicle approaches 80%, the charging speed naturally decreases (entering the constant voltage stage). At this time, reduce its charging power or stop charging to release power resources for other waiting vehicles and reduce the overall queuing time. 2. VIP charging operation strategy: Give priority to meeting the charging needs of VIP charging guns, and other charging guns meet the minimum charging power or stop charging. 3. First-come, first-served operation strategy: Give priority to the charging needs of the first-arriving charging users. The later-arriving users (requested charging guns) queue temporarily. After the charging SOC of the previous charging customer exceeds 80%, the charging resources can be gradually released to the queuing users.

[0128] In specific implementation, the charging control strategy for AC charging piles includes but is not limited to any of the following methods: 1. Charging limitation principle: Satisfy as many vehicles as possible to charge. Since the minimum charging standard for AC charging piles is 6A (the minimum charging current for charging standard PWM control), when the power is insufficient, adjust the available current of each pile, reduce the available current of high-current vehicles, and transfer it to the following vehicles to meet their charging needs. 2. First-come, first-served principle: The first-arriving vehicles can be charged with the maximum current. The later-connected vehicles need to wait (if there is remaining power that can meet the minimum charging standard, charge the later-entering vehicles with the minimum charging current) until the overall available power increases or the first-arriving vehicles are fully charged and stop or the charging power decreases.

[0129] This embodiment provides a charging control method. In this embodiment, the current required power of the requested charging guns corresponding to each charging pile is obtained; the current charging state of each charging pile is determined according to the current required power of the requested charging guns corresponding to each charging pile and the current available power of each charging pile; when the current charging state of each charging pile is the preset state, perform charging response control on the requested charging guns corresponding to the charging piles according to the charging control strategy. Through the above method, the charging response can be accurately controlled, the charging efficiency can be improved, the reliability of the equipment can be ensured, and the user experience can be enhanced.

[0130] Exemplarily, to facilitate understanding of the implementation process of the charging control method obtained by combining the above-mentioned Embodiment 1 and Embodiment 2, please refer to Figure 7 , Figure 7 A brief flowchart of a charging control method is provided. Specifically: Figure 7 On the left is the control process of the orderly charging controller, and on the right is the self-regulation process of a single charging gun. The orderly charging controller determines the pile power adjustment ratio β of each charging pile based on the required power and relevant rated information of each charging pile. When the pile power adjustment ratio β of each charging pile is not 1, the pile power adjustment ratio β of each charging pile is sent to each charging pile. After receiving the pile power adjustment ratio β, the charging pile adjusts the actual output power of this pile.

[0131] The orderly charging control process with local control proposed in this embodiment can implement a reliable orderly charging strategy in various environments such as online and off-grid, ensuring charging and other electricity usage safety; the control strategies at each layer are realized respectively from three levels: the charging station, the charging pile group, and the charging pile. The charging station corresponds to the grid dispatching platform, the pile group corresponds to the actual transformer, and the charging pile corresponds to the final control unit. By realizing independent control at each layer through layering, it is ensured that it can adapt to the orderly charging requirements of the full scenario, thereby efficiently and reliably realizing the orderly charging function.

[0132] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the charging control method of this application. Based on this technical concept, more forms of simple transformations are within the protection scope of this application.

[0133] This application also provides a charging control device. Please refer to Figure 8 , and the charging control device includes:

[0134] An acquisition module 10, configured to acquire the pile required power of each charging pile when receiving the charging station limit information sent by the remote control platform.

[0135] A processing module 20, configured to determine the charging adjustment coefficient of each charging pile according to the pile required power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information.

[0136] A control module 30, configured to perform charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

[0137] Optionally, the processing module 20 is further configured to:

[0138] Determine the transformer limit power of each charging pile group and the rated power of each charging pile according to the rated working information corresponding to each charging pile; determine the actual demand power of each charging pile according to the rated power of each charging pile and the demand power of each charging pile; determine the grouped demand power of each charging pile group according to the actual demand power of each charging pile and the transformer limit power of each charging pile group; determine the charging station demand power according to the grouped demand power of each charging pile group; perform coefficient calculation according to the charging station limit power corresponding to the charging station limit information, the charging station demand power, the actual demand power of each charging pile, the transformer limit power of each charging pile group, the demand power of each charging pile, and the rated power of each charging pile, and determine the charging adjustment coefficient of each charging pile.

[0139] Optionally, the processing module 20 is further configured to:

[0140] Compare the charging station limit power corresponding to the charging station limit information with the charging station demand power, and determine the station power adjustment coefficient according to the first comparison result; perform grouped power calculation according to the actual demand power of each charging pile to determine the pending demand power of each charging pile group; compare the pending demand power of each charging pile group with the transformer limit power of each charging pile group, and determine the grouped pile adjustment coefficient of each charging pile group according to the second comparison result; compare the demand power of each charging pile with the rated power of each charging pile, and determine the pile adjustment coefficient of each charging pile according to the third comparison result; perform coefficient calculation according to the station power adjustment coefficient, the grouped pile adjustment coefficient of each charging pile group, and the pile adjustment coefficient of each charging pile, and determine the charging adjustment coefficient of each charging pile.

[0141] Optionally, the processing module 20 is further configured to:

[0142] When the first comparison result is that the charging station limit power is greater than or equal to the charging station demand power, determine that the station power adjustment coefficient is a preset station adjustment coefficient; when the first comparison result is that the charging station limit power is less than the charging station demand power, perform coefficient calculation according to the charging station limit power and the charging station demand power to determine the station power adjustment coefficient.

[0143] Optionally, the control module 30 is further configured to:

[0144] Determine the rated power of each charging pile according to the rated working information corresponding to each charging pile; perform calculation according to the rated power of each charging pile and the charging adjustment coefficient of each charging pile to determine the actual output power of each charging pile; control each charging pile existing in the charging station to charge according to the actual output power of each charging pile.

[0145] Optionally, the control module 30 is further configured to:

[0146] Obtain the current required power of the requested charging guns corresponding to each charging pile; determine the current charging status of each charging pile according to the current required power of the requested charging guns corresponding to each charging pile and the current available power of each charging pile; and perform charging response control on the requested charging guns corresponding to each charging pile according to a charging control strategy when the current charging status of each charging pile is a preset status.

[0147] Optionally, the control module 30 is further configured to:

[0148] When the charging types of the charging piles existing in the charging station are preset types, send the charging adjustment coefficients of the charging piles to the charging piles, so that the charging piles determine the gun adjustment coefficients of the charging guns according to the gun charging information of the charging guns in operation and the charging adjustment coefficients, and perform charging control on the charging guns in operation according to the gun adjustment coefficients of the charging guns.

[0149] The charging control device provided in this application adopts the charging control method in the above embodiment, and can solve the technical problems that the existing orderly charging control method cannot achieve flexible, efficient and adaptive power distribution in multi-level scenarios such as grid dispatching, charging stations, charging pile groups and single piles, and relies on centralized background control. Compared with the prior art, the beneficial effects of the charging control device provided in this application are the same as those of the charging control method provided in the above embodiment, and other technical features in the charging control device are the same as those disclosed in the method of the above embodiment, which will not be elaborated here.

[0150] This application provides a charging control device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the charging control method in the first embodiment above.

[0151] Refer to the following Figure 9 , which shows a schematic structural diagram of a charging control device suitable for implementing the embodiments of this application. The charging control device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle terminals (such as vehicle navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 9The charging control device shown is merely an example and should not impose any limitations on the functions and scope of use of the embodiments of this application.

[0152] As Figure 9 shown, the charging control device may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM: Random Access Memory) 1004. In the RAM 1004, various programs and data required for the operation of the charging control device are also stored. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems may be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the charging control device to communicate with other devices wirelessly or wiredly to exchange data. Although the charging control device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or had alternatively.

[0153] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in this application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program codes for executing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from the network through the communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above functions defined in the methods of the embodiments disclosed in this application are executed.

[0154] The charging control device provided by this application adopts the charging control method in the above-mentioned embodiment, which can solve the technical problems that the existing orderly charging control method cannot achieve flexible, efficient and adaptive power distribution in multi-level scenarios such as grid dispatching, charging stations, charging pile groups and single piles, and relies on centralized background control. Compared with the prior art, the beneficial effects of the charging control device provided by this application are the same as those of the charging control method provided by the above-mentioned embodiment, and other technical features in the charging control device are the same as those disclosed in the method of the previous embodiment, and will not be elaborated here.

[0155] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0156] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all of them should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

[0157] This application provides a computer-readable storage medium with computer-readable program instructions (i.e., computer programs) stored thereon, and the computer-readable program instructions are used to execute the charging control method in the above-mentioned embodiment.

[0158] The computer-readable storage medium provided by the present application can be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or components, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or flash memory, optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In this embodiment, the computer-readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or in combination with an instruction execution system, device, or component. The program code contained on the computer-readable storage medium can be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0159] The above computer-readable storage medium can be included in the charging control device; or it can exist separately without being assembled into the charging control device.

[0160] The above computer-readable storage medium carries one or more programs. When the one or more programs are executed by the charging control device, the charging control device is caused to: when receiving the charging station limit information sent by the remote control platform, obtain the pile demand power of each charging pile; determine the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information; and perform charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

[0161] Computer program code for performing the operations of this application can be written in one or more programming languages or combinations thereof. The above-mentioned programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).

[0162] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of the code, which contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0163] The modules described in the embodiments of this application can be implemented in software or in hardware. Among them, the name of the module does not constitute a limitation to the unit itself in some cases.

[0164] The readable storage medium provided by this application is a computer-readable storage medium. The computer-readable storage medium stores computer-readable program instructions (i.e., computer programs) for executing the above charging control method, which can solve the technical problems that the existing orderly charging control method cannot achieve flexible, efficient, and adaptive power distribution in multi-level scenarios such as grid dispatching, charging stations, charging pile groups, and single piles, and relies on centralized background control. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by this application are the same as those of the charging control method provided by the above embodiments, and will not be elaborated here.

[0165] This application also provides a computer program product, including a computer program, and the steps of the above charging control method are implemented when the computer program is executed by a processor.

[0166] The computer program product provided by this application can solve the technical problems that the existing orderly charging control method cannot achieve flexible, efficient, and adaptive power distribution in multi-level scenarios such as grid dispatching, charging stations, charging pile groups, and single piles, and relies on centralized background control. Compared with the prior art, the beneficial effects of the computer program product provided by this application are the same as those of the charging control method provided by the above embodiments, and will not be elaborated here.

[0167] The above are only some embodiments of this application, and thus do not limit the patent scope of this application. Any equivalent structural transformation made by using the content of the specification and drawings of this application under the technical concept of this application, or any direct / indirect application in other related technical fields, is included in the patent protection scope of this application.

Claims

1. A charging control method, characterized in that, The method includes: When receiving the charging station limit information sent by the remote control platform, obtaining the pile demand power of each charging pile; Determining the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information; Performing charging control on each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

2. The method according to claim 1, wherein The step of determining the charging adjustment coefficient of each charging pile according to the pile demand power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information includes: Determining the transformer limit power of the group where each charging pile is located and the pile rated power of each charging pile according to the rated working information corresponding to each charging pile; Determining the actual demand power of each charging pile according to the pile rated power and the pile demand power of each charging pile; Determining the group demand power of the group where each charging pile is located according to the actual demand power of each charging pile and the transformer limit power of the group where each charging pile is located; Determining the charging station demand power according to the group demand power of the group where each charging pile is located; Performing coefficient calculation according to the charging station limit power corresponding to the charging station limit information, the charging station demand power, the actual demand power of each charging pile, the transformer limit power of the group where each charging pile is located, the pile demand power of each charging pile, and the pile rated power of each charging pile to determine the charging adjustment coefficient of each charging pile.

3. The method according to claim 2, characterized in that, The step of performing coefficient calculation according to the charging station limit power corresponding to the charging station limit information, the charging station demand power, the actual demand power of each charging pile, the transformer limit power of the group where each charging pile is located, the pile demand power of each charging pile, and the pile rated power of each charging pile to determine the charging adjustment coefficient of each charging pile includes: Comparing the charging station limit power corresponding to the charging station limit information with the charging station demand power, and determining the station power adjustment coefficient according to the first comparison result; Performing grouped power calculation according to the actual demand power of each charging pile to determine the pending demand power of the group where each charging pile is located; Comparing the pending demand power of the group where each charging pile is located with the transformer limit power of the group where each charging pile is located, and determining the grouped pile adjustment coefficient of the group where each charging pile is located according to the second comparison result; Comparing the pile demand power of each charging pile with the pile rated power of each charging pile, and determining the pile adjustment coefficient of each charging pile according to the third comparison result; Performing coefficient calculation according to the station power adjustment coefficient, the grouped pile adjustment coefficient of the group where each charging pile is located, and the pile adjustment coefficient of each charging pile to determine the charging adjustment coefficient of each charging pile.

4. The method according to claim 3, wherein The step of determining the station power adjustment coefficient according to the first comparison result includes: When the first comparison result is that the charging station limit power is greater than or equal to the charging station demand power, determining the station power adjustment coefficient as the preset station adjustment coefficient; When the first comparison result is that the charging station limit power is less than the charging station demand power, performing coefficient calculation according to the charging station limit power and the charging station demand power to determine the station power adjustment coefficient.

5. The method according to claim 1, characterized in that The steps of controlling the charging of each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile include: Determining the rated power of each charging pile according to the rated working information corresponding to each charging pile; Calculating according to the rated power of each charging pile and the charging adjustment coefficient of each charging pile to determine the actual output power of each charging pile; Controlling each charging pile existing in the charging station to charge according to the actual output power of each charging pile.

6. The method according to any one of claims 1 to 5, characterized in that After the steps of controlling the charging of each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile, it further includes: Obtaining the current required power of the requested charging gun corresponding to each charging pile; Determining the current charging state of each charging pile according to the current required power of the requested charging gun corresponding to each charging pile and the current available power of each charging pile; When the current charging state of each charging pile is a preset state, performing charging response control on the requested charging gun corresponding to each charging pile according to the charging control strategy.

7. The method according to any one of claims 1 to 5, characterized in that After the steps of controlling the charging of each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile, it further includes: When the charging type of each charging pile existing in the charging station is a preset type, sending the charging adjustment coefficient of each charging pile to each charging pile, so that the charging pile determines the gun adjustment coefficient of each charging gun according to the gun charging information of each charging gun in operation and the charging adjustment coefficient, and controls the charging of each charging gun in operation according to the gun adjustment coefficient of each charging gun.

8. A charging control device, characterized in that, The charging control device includes: An acquisition module, configured to acquire the pile required power of each charging pile when receiving the charging station limit information sent by the remote control platform; A processing module, configured to determine the charging adjustment coefficient of each charging pile according to the pile required power of each charging pile, the rated working information corresponding to each charging pile, and the charging station limit information; A control module, configured to control the charging of each charging pile existing in the charging station according to the charging adjustment coefficient of each charging pile.

9. A charging control device, characterized in that, The device includes: a memory, a processor, and a charging control program stored on the memory and executable on the processor, and the charging control program is configured to implement the steps of the charging control method according to any one of claims 1 to 7.

10. A storage medium, characterized in that, A charging control program is stored on the storage medium, and when the charging control program is executed by the processor, the steps of the charging control method according to any one of claims 1 to 7 are implemented.

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