Multi-mode charging and discharging control method and system for charging pile

Abstract

A multi-mode charging and discharging control method and system for a charging pile, relating to the technical field of charging and discharging control. The method comprises: configuring a charging and discharging mode of a charging pile; obtaining a peak value time period, a flat value time period, and a valley value time period; when in the peak value time period, enabling a peak mode, generating a charging pile bidirectional discharging scheme, and performing discharging control of the charging pile; when in the flat value time period, enabling a flat mode, executing linkage discharging optimization of the charging pile, generating a linkage discharging scheme, and performing discharging control of the charging pile; and when in the valley value time period, enabling a valley mode, executing charging optimization of the charging pile, generating a charging pile charging scheme, and performing charging control of the charging pile. The technical problem in the prior art of poor scenario adaptability caused by lack of analysis and adjustment of a power grid load is solved, adaptive adjustment of charging and discharging control is implemented on the basis of a power grid load scenario, and the technical effect of improving the scenario adaptability is achieved.

Description

A multi-mode charging and discharging control method and system for a charging pile

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on December 18, 2023, with application number 2023117381902 and invention name “A multi-mode charging and discharging control method and system for a charging pile”, the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0002] The present disclosure relates to the technical field of charge and discharge control, and in particular to a multi-mode charge and discharge control method and system for a charging pile. Background Art

[0003] With the rapid development and application of new energy, electric vehicles are also widely used. Naturally, this has led to increasing investment and construction in charging stations. This has led to a large number of charging stations, but low utilization rates. Traditionally, charging and discharging at charging stations is controlled individually, switching between grid AC charging and energy storage battery charging. This lacks analysis and adjustment of grid load, resulting in poor adaptability to different scenarios.

[0004] Summary of the Invention

[0005] The present disclosure provides a multi-mode charging and discharging control method and system for a charging pile, which is used to solve the technical problem in the prior art of poor scene adaptability due to the lack of analysis and adjustment of power grid load.

[0006] According to a first aspect of the present disclosure, a multi-mode charging and discharging control method for a charging pile is provided, comprising: configuring charging and discharging modes of the charging pile, wherein the charging and discharging modes of the charging pile include peak mode, flat mode and valley mode; when a preset update cycle is met, statistics are collected on power consumption information of a preset regional power grid in a preset time zone to obtain peak time periods, flat time periods and valley time periods; when in a peak time period, the peak mode is started, the discharge demand of the charging piles in the preset area is received, a bidirectional discharge optimization of the charging piles is performed, a bidirectional discharge plan of the charging piles is generated, and the discharge control of the charging piles is performed; when in a flat time period, the flat mode is started, the discharge demand of the charging piles in the preset area is received, a linked discharge optimization of the charging piles is performed, a linked discharge plan is generated, and the discharge control of the charging piles is performed; when in a valley time period, the valley mode is started, the discharge demand of the charging piles in the preset area is received, a charging optimization of the charging piles is performed, a charging plan of the charging piles is generated, and the charging control of the charging piles is performed.

[0007] According to a second aspect of the present disclosure, a multi-mode charging and discharging control system for a charging pile is provided, comprising: a charging and discharging mode configuration component, the charging and discharging mode configuration component being configured to configure the charging and discharging mode of the charging pile, wherein the charging and discharging mode of the charging pile includes peak mode, flat mode and valley mode; an electricity consumption information statistics component, the electricity consumption information statistics component being configured to, when a preset update cycle is met, perform statistics on the electricity consumption information of a preset regional power grid in a preset time zone, and obtain peak time periods, flat time periods and valley time periods; a bidirectional discharge optimization component, the bidirectional discharge optimization component being configured to, when in a peak time period, start the peak mode, receive a preset Assume that the regional charging pile discharge demand is set, execute the bidirectional discharge optimization of the charging pile, generate the bidirectional discharge plan of the charging pile, and control the discharge of the charging pile; the linkage discharge optimization component is set to start the flat mode when it is in the flat period, receive the preset regional charging pile discharge demand, execute the charging pile linkage discharge optimization, generate the linkage discharge plan, and control the discharge of the charging pile; the charging optimization component is set to start the valley mode when it is in the valley period, receive the preset regional charging pile discharge demand, execute the charging pile charging optimization, generate the charging plan, and control the charging of the charging pile.

[0008] According to one or more technical solutions adopted in the present disclosure, the beneficial effects that can be achieved are as follows: by configuring different charging and discharging modes of charging piles, different charging and discharging schemes are set up in conjunction with the power grid according to the power consumption status at different times. During peak power consumption periods, the charging piles are used to discharge in both directions toward the user side and the distribution network, thereby achieving the technical effect of reducing the load pressure on the distribution network. During stable power consumption periods, when the initial storage capacity of the charging piles cannot meet the needs of the user side, the power grid is activated for auxiliary discharge, thereby ensuring that the needs of charging users are met while reducing the charging pressure of the charging piles. During low power consumption periods, the charging users of the charging piles are charged through the power grid, and at the same time, the charging piles that need to be charged are charged through the power grid, thereby ensuring that the charging piles are fully charged, avoiding insufficient storage capacity when switching to the peak mode later, and achieving the technical effect of charge and discharge balance adjustment in different modes. In this way, adaptive adjustment of charge and discharge control based on the power grid load scenario is achieved, thereby achieving the technical effect of improving scenario adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] To more clearly illustrate the technical solutions in the present disclosure or the prior art, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. The drawings that constitute part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an undue limitation of the present disclosure. Those skilled in the art can also derive other drawings based on the provided drawings without inventive effort.

[0010] FIG1 is a flow chart of a multi-mode charging and discharging control method for a charging pile provided by an embodiment of the present disclosure;

[0011] FIG2 is a schematic structural diagram of a multi-mode charging and discharging control system of a charging pile provided by an embodiment of the present disclosure.

[0012] Explanation of the accompanying symbols: charging and discharging mode configuration component 11, power consumption information statistics component 12, bidirectional discharge optimization component 13, linked discharge optimization component 14, charging optimization component 15. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the present disclosure more apparent, the exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited to the exemplary embodiments described herein.

[0014] The terms used in the specification are used to describe the embodiments rather than to limit the present disclosure. As used in the specification, the singular terms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When used in the specification, the terms "comprises" and / or "includes" specify the presence of steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other steps, operations, elements, components, and / or groups thereof.

[0015] Unless otherwise defined, all terms (including technical and scientific terms) used in this specification shall have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs. Terms, such as those defined in commonly used dictionaries, should not be interpreted in an idealized or overly formal sense unless explicitly defined herein. Throughout the specification, the same reference numerals denote the same elements.

[0016] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for display, data for analysis, etc.) involved in this disclosure are all information and data authorized by the user or fully authorized by all parties.

[0017] Example 1

[0018] FIG1 is a diagram of a multi-mode charging and discharging control method for a charging pile provided by an embodiment of the present disclosure, the method comprising:

[0019] Configure the charging and discharging modes of the charging pile, where the charging and discharging modes of the charging pile include peak mode, flat mode and valley mode.

[0020] Configure the charging and discharging modes of the charging pile. These modes include peak mode, flat mode, and valley mode. The charging and discharging modes of the charging pile are related to the power load of the distribution network in the preset area. Peak mode refers to a state with high power demand and a heavy distribution network load. Flat mode refers to a state with relatively flat power demand. Valley mode refers to a state with minimal power demand. Subsequent charging and discharging control of the charging pile is based on the charging and discharging modes of the charging pile.

[0021] The method includes: when a preset update cycle is met, collecting statistics on power consumption information of a preset regional power grid in a preset time zone to obtain peak time periods, average time periods and valley time periods.

[0022] The preset update cycle refers to the period for collecting electricity consumption information statistics, which is set by professionals in this field based on actual conditions, such as weekly statistics. The preset area is the area where the charging piles to be controlled for charging and discharging are located. The preset time zone refers to the length of time for collecting electricity consumption information statistics. For example, when the preset update cycle is met, electricity consumption information statistics for one day are collected. Specifically, the power system in the preset area can be connected to retrieve the electricity consumption information of the preset area power grid in the preset time zone. The preset time zone is segmented according to electricity consumption. The time period with the highest electricity consumption is extracted from the electricity consumption information of the preset area power grid as the peak period, the time period with the lowest electricity consumption is extracted as the valley period, and the remaining time period with relatively stable electricity consumption is extracted as the average period.

[0023] In a preferred embodiment, when the preset update cycle is met, the power consumption information of the preset regional power grid in the preset time zone is counted to obtain the peak period, the average period and the valley period, including: the power consumption information of the preset regional power grid includes the preset regional power consumption timetable, and the power consumption fluctuation timing curve is constructed; the peak power consumption range, the average power consumption range and the valley power consumption range are configured; according to the peak power consumption range, the average power consumption range and the valley power consumption range, the power consumption fluctuation timing curve is divided into time zones to generate the peak period, the average period and the valley period.

[0024] In a preferred embodiment, the preset regional power grid electricity consumption information includes a preset regional electricity consumption timetable, and constructs an electricity consumption fluctuation time series curve, including: extracting several recorded electricity consumptions at the first moment of the preset regional electricity consumption timetable; sorting several recorded electricity consumptions from small to large to generate a recorded electricity consumption sorting result; extracting the first recorded electricity consumption with a sequence number of one-fourth of the recorded electricity consumption sorting result, and the second recorded electricity consumption with a sequence number of three-quarters; calculating the deviation between the second recorded electricity consumption and the first recorded electricity consumption to generate an interquartile range of electricity consumption; constructing a concentrated box plot based on the interquartile range of electricity consumption, the first recorded electricity consumption and the second recorded electricity consumption, distributing several recorded electricity consumptions, obtaining the maximum electricity consumption of the concentrated box, setting it as the electricity consumption at the first moment, using the above-mentioned method for determining the electricity consumption at the first moment, determining the electricity consumption of multiple unit moments, and constructing an electricity consumption fluctuation time series curve.

[0025] Specifically, the power consumption information of the preset regional power grid includes the preset regional power consumption timetable, and the power consumption fluctuation time series curve is constructed. The preset regional power consumption timetable is a regularized table of power consumption at consecutive time points in the preset region, such as power consumption at 9 o'clock, 10 o'clock, 11 o'clock, etc. in the morning, which can be retrieved by connecting to the power system. With power consumption as the vertical axis and time point as the horizontal axis, the power consumption at consecutive time points in the preset regional power consumption timetable is plotted to obtain the power consumption fluctuation time series curve. The specific process is as follows: extract several recorded power consumptions at the first moment of the preset regional power consumption timetable. The first moment is any moment in the 24-hour unit moment in a day. The interval between each moment can be determined in combination with actual conditions, such as every 30 minutes or 1 hour, such as 9 o'clock, 10 o'clock, etc., and the recorded power consumption at 9 o'clock every day of the week can be obtained, thereby obtaining several recorded power consumptions. Sort several recorded electricity consumptions from small to large to generate a recorded electricity consumption sorting result, extract the first recorded electricity consumption with a sequence number of one-quarter of the recorded electricity consumption sorting result, and the second recorded electricity consumption with a sequence number of three-quarters. If the sequence number of one-quarter or three-quarters is not an integer, you can choose to round up or down. For example, if there are 10 recorded electricity consumptions in the recorded electricity consumption sorting result, multiply 10 by one-quarter and round up, and the sequence number of one-quarter is 3. Extract the third recorded electricity consumption in the recorded electricity consumption sorting result as the first recorded electricity consumption. Similarly, obtain the second recorded electricity consumption with a sequence number of three-quarters.

[0026] Optionally, the first recorded electricity consumption can be subtracted from the second recorded electricity consumption to obtain the interquartile range of electricity consumption. A concentrated box plot is constructed based on the interquartile range of electricity consumption, the first recorded electricity consumption, and the second recorded electricity consumption. In layman's terms, the concentrated box is a concentrated box constructed from the electricity consumption interval consisting of the first recorded electricity consumption and the second recorded electricity consumption. The lower box line is calculated by subtracting 1.5 times the interquartile range of electricity consumption from the first recorded electricity consumption, and the upper box line is calculated by adding 1.5 times the interquartile range of electricity consumption to the second recorded electricity consumption. The upper box line and the lower box line form a concentrated box line, and the concentrated box and the concentrated box line form a concentrated box plot. Optionally, several recorded electricity consumptions can be plotted on a concentrated box plot. When several recorded electricity consumptions are below the lower box line or above the upper box line, they are regarded as discrete data; when several recorded electricity consumptions are between the lower box line and the concentrated box, or between the upper box line and the concentrated box, they belong to box line concentrated data; when several recorded electricity consumptions are in the concentrated box, they belong to box concentrated data, and the maximum recorded electricity consumption is selected from the box concentrated data, that is, the maximum electricity consumption of the concentrated box is set as the electricity consumption at the first moment.

[0027] Multiple unit moments can be determined within a 24-hour period. The first moment can be any one of the multiple unit moments. The power consumption at the first moment can then be added to the 24-hour unit moment power consumption. The same method can be used to continue obtaining the power consumption at other moments included in the multiple unit moments to obtain the 24-hour unit moment power consumption. When subsequently controlling the charging and discharging of the charging pile, power consumption statistics can be analyzed according to the moments in the 24-hour unit moment power consumption. With the 24-hour unit moment as the horizontal axis and the power consumption as the vertical axis, a curve is drawn for the 24-hour unit moment power consumption to obtain a power consumption fluctuation time series curve. Thus, data is centrally analyzed through a number of recorded power consumption data at each moment, power consumption data under abnormal conditions is excluded, and the stability of the obtained power consumption fluctuation time series curve is ensured.

[0028] Optionally, a peak power consumption range, a flat power consumption range, and a valley power consumption range are configured, wherein the peak power consumption range, the flat power consumption range, and the valley power consumption range are set by professional and technical personnel in this field based on actual conditions. According to the peak power consumption range, the flat power consumption range, and the valley power consumption range, the power consumption fluctuation timing curve is divided into time zones to generate peak periods, flat periods, and valley periods. Simply put, the peak period is the period in the power consumption fluctuation timing curve that is within the peak power consumption range, the flat period is the period in the power consumption fluctuation timing curve that is within the flat power consumption range, and the valley period is the period in the power consumption fluctuation timing curve that is within the valley power consumption range. This achieves the division of different power consumption time zones, facilitates the subsequent optimal charge and discharge control under different charging and discharging modes of charging piles, and improves the adaptability of charging and discharging control of charging piles to grid loads.

[0029] The method also includes: when in the peak period, starting the peak mode, receiving the charging pile discharge demand in the preset area, executing the charging pile bidirectional discharge optimization, generating the charging pile bidirectional discharge plan, and performing the charging pile discharge control.

[0030] Among them, if the current time belongs to the peak period, the peak mode is started, the discharge demand of the charging piles in the preset area is received, and the bidirectional discharge optimization of the charging piles is executed. Among them, the bidirectional discharge optimization of the charging piles refers to the discharge optimization in the direction of the distribution network and the user side, generating a bidirectional discharge plan for the charging piles, and performing charging pile discharge control. The specific implementation process is detailed below.

[0031] In a preferred embodiment, when in the peak period, the peak mode is started, the discharge demand of the charging piles in the preset area is received, the bidirectional discharge optimization of the charging piles is executed, the bidirectional discharge plan of the charging piles is generated, and the discharge control of the charging piles is performed, including: the discharge demand of the charging piles in the preset area includes the required discharge amount of the charging piles and the initial storage amount of the charging piles; the redundant storage amount of the charging piles is obtained according to the required discharge amount of the charging piles and the initial storage amount of the charging piles; at most two-thirds of the redundant storage amount of the charging piles is set as the discharge amount in the direction of the distribution network; according to the discharge amount in the direction of the distribution network, the bidirectional discharge optimization of the charging piles is executed, the bidirectional discharge plan of the charging piles is generated, and the discharge control of the charging piles is performed.

[0032] In a preferred embodiment, based on the discharge amount in the direction of the distribution network, a bidirectional discharge optimization of the charging pile is performed, a bidirectional discharge plan of the charging pile is generated, and the discharge control of the charging pile is performed, including: the initial storage capacity of the charging pile includes the initial storage capacity of the first-numbered charging pile, the initial storage capacity of the second-numbered charging pile, and the initial storage capacity of the N-th charging pile; the charging piles with the initial storage capacity of the first-numbered charging pile, the initial storage capacity of the second-numbered charging pile, and the initial storage capacity of the N-th charging pile are extracted, and the numbers of the charging piles discharging in the direction of the distribution network are obtained; the discharge amount in the direction of the distribution network is evenly distributed to the charging pile numbers discharging in the direction of the distribution network, and a discharge plan in the direction of the distribution network is generated; a user-side discharge plan is configured, wherein the user-side discharge plan is to discharge the energy storage battery of the charging pile in real time based on user needs; according to the distribution network discharge plan and the user-side discharge plan, a bidirectional discharge plan for the charging pile is constructed to control the discharge of the charging pile.

[0033] The discharge demand for charging piles in a preset area includes the required discharge capacity and the initial storage capacity. The required discharge capacity refers to the time interval between the current peak and the next valley. For example, 9:00, 10:00, 18:00, and 19:00 are peak periods, while 12:00, 22:00, 23:00, 0:00, and 1:00 are valley periods. If the current peak is at 10:00, the next valley will be at 12:00. The discharge demand from 10:00 to 12:00 is the required discharge capacity, i.e., the amount of energy the charging pile needs to provide to electric vehicles and other devices requiring charging. The specific discharge demand should be determined based on actual conditions. The initial storage capacity of the charging pile refers to the remaining capacity of the energy storage battery within the charging pile at the current moment. Subtracting the required discharge capacity from the initial storage capacity yields the redundant storage capacity of the charging pile, which is the amount of energy that can be delivered to the distribution network after the charging pile has provided the required discharge capacity. Up to two-thirds of the redundant storage capacity is set as the discharge capacity to the distribution network. In other words, a certain amount of energy should be retained within the charging pile to prevent emergencies. Finally, according to the discharge amount in the distribution network direction, the bidirectional discharge optimization of the charging pile is performed, a bidirectional discharge plan of the charging pile is generated, and the discharge of the charging pile is controlled to reduce the power load pressure of the distribution network during peak hours.

[0034] Specifically, based on the discharge amount in the direction of the distribution network, a bidirectional discharge optimization search for charging piles is performed to generate a bidirectional discharge plan for the charging piles. The process for controlling the discharge of the charging piles is as follows: the initial storage capacity of the charging piles includes the initial storage capacity of the first-numbered charging pile, the initial storage capacity of the second-numbered charging pile, and so on, up to the initial storage capacity of the Nth-numbered charging pile. That is, the charging piles in a preset area are numbered with Arabic numerals, and each charging pile has a unique number. The remaining capacity of the energy storage battery inside each charging pile at the current moment is obtained. The charging piles with an initial storage capacity greater than or equal to the preset storage capacity from the initial storage capacity of the first-numbered charging pile, the initial storage capacity of the second-numbered charging pile, and the initial storage capacity of the Nth-numbered charging pile are extracted to obtain the number of the charging pile for discharge in the direction of the distribution network. The preset storage capacity is set by professionals in this field based on actual conditions and is not limited to this. For example, the preset storage capacity can be obtained by increasing the required discharge capacity of the charging pile by 20%. Then, the discharge amount in the direction of the distribution network is evenly divided into the numbers of the discharge charging piles in the direction of the distribution network, and a discharge plan in the direction of the distribution network is generated. That is, the discharge amount in the direction of the distribution network is divided by the number of the discharge charging piles in the direction of the distribution network, and the amount of electricity transmitted to the distribution network by the charging pile corresponding to each discharge charging pile number in the direction of the distribution network is used as the discharge plan in the direction of the distribution network.

[0035] Optionally, a user-side discharge scheme can be configured. The user-side discharge scheme involves real-time discharge of the charging pile's energy storage battery based on user demand. This means the amount of energy discharged from the charging pile to the user is determined by the amount of energy required. Finally, a bidirectional discharge scheme for the charging pile can be implemented, combining both the distribution network- and user-side-direction discharge schemes. This allows for discharge control of the charging pile, controlling discharge in both directions, reducing the load on the distribution network.

[0036] The method includes: when in a flat time period, starting a flat mode, receiving a charging pile discharge demand in a preset area, executing charging pile linkage discharge optimization, generating a linkage discharge plan, and performing charging pile discharge control.

[0037] In a preferred embodiment, when in a flat time period, the flat mode is started, the discharge demand of the charging piles in the preset area is received, the charging pile linkage discharge optimization is executed, a linkage discharge plan is generated, and the charging pile discharge control is performed, including: the discharge demand of the charging piles in the preset area includes the required discharge amount of the charging piles and the initial storage amount of the charging piles; the required discharge amount of the charging piles includes the required discharge amount of the first charging pile, and the initial storage amount of the charging piles includes the initial storage amount of the first charging pile; the first type of charging piles whose required discharge amount of the first charging pile is greater than the initial storage amount of the first charging pile are extracted; the second type of charging piles whose required discharge amount of the first charging pile is less than the initial storage amount of the first charging pile are extracted; for the first type of charging piles, the power grid is activated for auxiliary discharge, and for the second type of charging piles, the energy storage battery is discharged, a linkage discharge plan is generated, and the charging pile discharge control is performed.

[0038] Specifically, when in the flat period, the flat mode is started, the discharge demand of the charging piles in the preset area is received, the charging pile linkage discharge optimization is executed, the linkage discharge plan is generated, and the charging pile discharge control is performed. The specific process is as follows: the discharge demand of the charging piles in the preset area includes the required discharge amount of the charging piles and the initial storage amount of the charging piles. The required discharge amount of the charging piles is the amount of electricity that any charging pile in the preset area needs to provide to the user side. The initial storage amount of the charging piles includes the initial storage amount of the charging piles. The initial storage amount of the charging piles is the current storage amount of the charging piles corresponding to the required discharge amount of the charging piles. The specific amount needs to be determined based on the actual situation.

[0039] Charging piles with a required discharge capacity greater than their initial storage capacity are selected as first-type charging piles. Their initial storage capacity cannot meet the discharge demand, requiring grid activation for auxiliary discharge. Charging piles with a required discharge capacity less than their initial storage capacity are selected as second-type charging piles. Their initial storage capacity can meet the discharge demand. For first-type charging piles, the grid is activated for auxiliary discharge, meaning the first-type charging pile is prioritized for discharge to the user. When the energy storage battery within the charging pile is insufficient, the grid is used to discharge to the user to meet the user's needs. Simultaneously, the second-type charging pile discharges its energy storage battery, meaning the second-type charging pile discharges to the user. This generates a coordinated discharge plan for the first and second-type charging piles, controlling the discharge of the charging piles. During off-peak hours, when the initial storage capacity of the charging pile cannot meet user demand, the grid is activated for auxiliary discharge, ensuring that customer needs are met and reducing charging pressure on the charging piles.

[0040] The method includes starting the valley mode when in the valley period, receiving the discharge demand of the charging pile in the preset area, executing the charging optimization search for the charging pile, generating the charging plan for the charging pile, and performing the charging control of the charging pile.

[0041] In a preferred embodiment, when in a valley period, the valley mode is started, the discharge demand of the charging piles in the preset area is received, the charging optimization of the charging piles is executed, the charging plan of the charging piles is generated, and the charging control of the charging piles is performed, including: configuring the power grid AC discharge plan according to the discharge demand of the charging piles in the preset area, wherein the power grid AC discharge plan is to call the power grid to provide AC charging for users through the charging piles based on user needs; obtaining the initial storage capacity ratio of the charging piles according to the discharge demand of the charging piles in the preset area, wherein the initial storage capacity ratio represents the ratio of the remaining power of any charging pile to its power capacity; extracting the third type of charging piles whose initial storage capacity ratio is less than or equal to the storage capacity ratio threshold, and configuring the power grid charging plan; constructing the charging pile charging plan according to the power grid AC discharge plan and the power grid charging plan, and performing charging control of the charging piles.

[0042] During a valley period, the valley mode is activated to receive discharge demands from charging piles in a preset area, perform charging optimization, generate charging plans for the charging piles, and control charging of the charging piles as follows: Based on the discharge demands from the charging piles in the preset area, a grid AC discharge plan is configured. The grid AC discharge plan uses the grid to AC charge the user through the charging piles based on user demand. That is, the grid transmits power to the charging piles, which then AC charge the user. Simply put, the grid charges the user. Based on the initial storage capacity of the charging piles in the preset area, an initial storage capacity ratio is obtained. The initial storage capacity ratio represents the ratio of the remaining power of any charging pile to its energy capacity. The energy capacity is the total amount of energy that can be stored in the charging pile's energy storage battery when fully charged. The storage capacity ratio threshold is determined by professionals in this field based on actual conditions. Simply put, when the charging pile is fully charged, its corresponding initial storage capacity ratio should be as close to 1. Therefore, the smaller the initial storage capacity ratio, the less remaining power the charging pile has, and the more charging is needed. The storage capacity ratio threshold is the threshold set by professionals in this field to indicate the need for charging. Then, a third type of charging pile with an initial storage capacity ratio less than or equal to the storage capacity ratio threshold is extracted. A grid charging plan is configured, whereby the third type of charging pile is charged via the grid, with the charge amount being the deviation between the charging pile's remaining charge and its electrical energy capacity. Finally, a charging pile charging plan is formed by combining the grid AC discharge plan and the grid charging plan to control charging of the charging pile. Thus, during periods of low electricity consumption, the grid charges the charging pile's users, while simultaneously charging the charging piles in need of charging. This ensures that the charging piles are fully charged, avoiding insufficient storage capacity when subsequently switching to peak mode, and achieving balanced charge and discharge regulation between different modes.

[0043] In a preferred embodiment, the method further includes: when the first charging pile is connected to a charging user, obtaining the model of the battery to be charged and the amount to be charged; when the initial storage capacity of the first charging pile is less than the amount to be charged, adding a fourth type of charging pile; when the initial storage capacity of the first charging pile is greater than the amount to be charged, adding a fifth type of charging pile; and calling the fifth type of charging pile to assist in charging the fourth type of charging pile.

[0044] Among them, the fifth type of charging pile is called to assist in charging the fourth type of charging pile, including: obtaining the missing charging amount of any fourth type charging pile, matching the auxiliary charging pile to be scheduled in the fifth type of charging pile, wherein the redundant storage capacity of the auxiliary charging pile to be scheduled is greater than or equal to the missing charging amount; constructing multiple scheduling lines corresponding to the auxiliary charging pile to be scheduled, activating the line loss prediction channel to perform power loss analysis, and generating power loss characteristic values, wherein the line loss prediction channel has a graph neural network topology structure; updating the auxiliary charging pile to be scheduled according to a preset number of times to obtain the updated auxiliary charging pile to be scheduled, and determining the multiple scheduling lines and power loss characteristic values ​​corresponding to the updated auxiliary charging pile to be scheduled, extracting the charging pile scheduling plan with the smallest power loss characteristic value, and assisting in charging the fourth type of charging pile.

[0045] Specifically, when in the peak period, the peak mode is started, a bidirectional discharge plan for the charging pile is generated, and the discharge control of the charging pile is performed. That is to say, the discharge is controlled in the direction of the user side, so as to charge the user's electrical equipment, such as electric vehicles, and at the same time, the discharge is controlled in the direction of the distribution network. The first charging pile refers to any charging pile in the preset area. When the first charging pile is connected to the charging user, the model of the battery to be charged and the amount to be charged of the charging user are read. The model of the battery to be charged and the amount to be charged can be uploaded by the user through the client. When the initial storage capacity of the first charging pile is less than the amount to be charged, the fourth type of charging pile is added. Simply put, the fourth type of charging pile refers to a charging pile whose remaining power cannot meet the charging needs of the charging user. When the initial storage capacity of the first charging pile is greater than the amount to be charged, the fifth type of charging pile is added. The fifth type of charging pile is a charging pile whose remaining power is sufficient to meet the charging needs of the charging user and has surplus power.

[0046] The fifth type of charging pile is retrieved to assist in charging the fourth type of charging pile. The specific process is as follows: the missing charge amount of any fourth type of charging pile is obtained, where the missing charge amount is the difference between the amount to be charged and the initial charge capacity of the charging pile. The auxiliary charging pile to be scheduled is matched from the fifth type of charging pile, wherein the redundant charge capacity of the auxiliary charging pile to be scheduled is greater than or equal to the missing charge amount. The redundant charge capacity refers to the difference between the initial charge capacity of the fifth type of charging pile and the amount to be charged. Simply put, the redundant charge capacity is the remaining charge of the charging pile after meeting the charging needs of its own charging users. Among the fifth type of charging piles, the charging pile with a redundant charge capacity greater than or equal to the missing charge amount is obtained as the auxiliary charging pile to be scheduled.

[0047] It should be noted that all the charging piles in the embodiment of the present disclosure have interconnected circuits, so power scheduling can be performed. Based on this, multiple scheduling line topologies corresponding to the auxiliary charging piles to be scheduled can be constructed. The scheduling line topology refers to the power scheduling line between the auxiliary charging piles to be scheduled and the fourth type of charging piles. In layman's terms, the circuits of all the charging piles are interconnected, so power scheduling can be performed through one or more of the charging piles as intermediate nodes, then multiple scheduling line topologies can be obtained. Activate the line loss prediction channel to perform power loss analysis and generate power loss characteristic values, wherein the line loss prediction channel has a graph neural network topology structure, that is, during the power scheduling process, the transmission of power through the charging piles will inevitably cause a certain amount of power loss. The line loss prediction channel is a functional model for power loss prediction, and its network structure is a graph neural network topology structure, which is an existing graph neural network model for processing graph data. Specifically, based on existing technology, we collect and obtain power loss data corresponding to different dispatching line topology data. This data is used as training data for a graph neural network model. The dispatching line topology data is input into the graph neural network model, and the corresponding power loss data is used to supervise and adjust the output, resulting in a line loss prediction channel that has been trained to convergence. Multiple dispatching line topologies are input into the line loss prediction channel to obtain power loss characteristic values.

[0048] Finally, the auxiliary charging piles to be scheduled are updated according to a preset number of times to obtain updated auxiliary charging piles to be scheduled. Multiple scheduling routes and power loss characteristic values ​​corresponding to the updated auxiliary charging piles to be scheduled are determined, and the charging pile scheduling plan with the minimum power loss characteristic value is extracted to assist charging of the fourth type of charging piles. That is, the charging piles are interconnected, and any one or more of the auxiliary charging piles to be scheduled can be used as nodes for discharging electricity to the distribution network or assisting charging of the fourth type of charging piles. The power scheduling routes are adjusted multiple times. Different scheduling route topologies are obtained, and the corresponding power loss characteristic values ​​are obtained through the route loss prediction channel until a preset number of times is reached. The preset number is set by professionals in this field, such as 50 times. Finally, the scheduling route topology with the minimum power loss characteristic value is obtained as the charging pile scheduling plan, and auxiliary charging is performed on the fourth type of charging piles to reduce power loss.

[0049] Based on the above analysis, it can be seen that the one or more technical solutions provided by the present disclosure can achieve the following beneficial effects: by configuring different charging and discharging modes of charging piles, the joint power grid sets different charging and discharging schemes for the power consumption status at different times, and during peak power consumption periods, the charging piles are used to discharge in both directions toward the user side and the distribution network, thereby achieving the technical effect of reducing the load pressure on the distribution network. During stable power consumption periods, when the initial storage capacity of the charging piles cannot meet the needs of the user side, the power grid is activated for auxiliary discharge, thereby ensuring that the needs of charging users are met while reducing the charging pressure of the charging piles. During low power consumption periods, the charging users of the charging piles are charged through the power grid, and at the same time, the charging piles that need to be charged are charged through the power grid, thereby ensuring that the charging piles are fully charged, avoiding insufficient storage capacity when switching to the peak mode later, and achieving the technical effect of charge and discharge balance regulation of different modes. In this way, adaptive adjustment of charge and discharge control based on the power grid load scenario is achieved, thereby achieving the technical effect of improving scenario adaptability.

[0050] Example 2

[0051] Based on the same inventive concept as the multi-mode charge and discharge control method for a charging pile in the aforementioned embodiment, as shown in FIG2 , the present disclosure further provides a multi-mode charge and discharge control system for a charging pile, the system comprising:

[0052] The charging and discharging mode configuration component 11 is configured to configure the charging and discharging mode of the charging pile, wherein the charging and discharging mode of the charging pile includes a peak mode, a flat mode and a valley mode;

[0053] The electricity consumption information statistics component 12 is configured to collect electricity consumption information of a preset regional power grid in a preset time zone when a preset update cycle is met, and obtain peak time periods, average time periods, and valley time periods;

[0054] The bidirectional discharge optimization component 13 is configured to start the peak mode when in the peak period, receive the discharge demand of the charging pile in the preset area, perform bidirectional discharge optimization of the charging pile, generate a bidirectional discharge plan for the charging pile, and perform discharge control of the charging pile;

[0055] The linkage discharge optimization component 14 is configured to start the flat mode when in the flat period, receive the discharge demand of the charging piles in the preset area, perform the linkage discharge optimization of the charging piles, generate a linkage discharge plan, and perform the discharge control of the charging piles;

[0056] The charging optimization component 15 is configured to start the valley mode when in the valley period, receive the discharge demand of the charging piles in the preset area, perform charging optimization of the charging piles, generate a charging plan for the charging piles, and perform charging control of the charging piles.

[0057] Optionally, the electricity consumption information statistics component 12 is also configured to: preset regional power grid electricity consumption information including a preset regional electricity consumption timetable, construct an electricity consumption fluctuation time series curve; configure peak electricity consumption threshold, average electricity consumption threshold and valley electricity consumption threshold; according to the peak electricity consumption threshold, average electricity consumption threshold and valley electricity consumption threshold, divide the electricity consumption fluctuation time series curve into time zones to generate peak period, average period and valley period.

[0058] Optionally, the electricity consumption information statistics component 12 is also configured to: extract several recorded electricity consumptions at the first moment of the electricity consumption timetable of a preset area; sort several recorded electricity consumptions from small to large to generate a recorded electricity consumption sorting result; extract the first recorded electricity consumption with a sequence number of one-fourth of the recorded electricity consumption sorting result, and the second recorded electricity consumption with a sequence number of three-quarters; calculate the deviation between the second recorded electricity consumption and the first recorded electricity consumption to generate an interquartile range of electricity consumption; construct a concentrated box plot based on the interquartile range of electricity consumption, the first recorded electricity consumption and the second recorded electricity consumption, distribute several recorded electricity consumptions, obtain the maximum electricity consumption of the concentrated box, and set it as the electricity consumption at the first moment; use the above-mentioned method to determine the electricity consumption at the first moment to determine the electricity consumption of each of the multiple unit moments, and construct an electricity consumption fluctuation time series curve.

[0059] Optionally, the bidirectional discharge optimization component 13 is further configured to: preset the area charging pile discharge demand including the charging pile required discharge amount and the charging pile initial storage amount; obtain the charging pile redundant storage amount according to the charging pile required discharge amount and the charging pile initial storage amount; set up to two-thirds of the charging pile redundant storage amount as the discharge amount in the direction of the distribution network; execute the charging pile bidirectional discharge optimization according to the discharge amount in the direction of the distribution network, generate the charging pile bidirectional discharge plan, and perform charging pile discharge control.

[0060] Optionally, the bidirectional discharge optimization component 13 is further configured as follows: the initial storage capacity of the charging pile includes the initial storage capacity of the first-numbered charging pile, the initial storage capacity of the second-numbered charging pile, and the initial storage capacity of the N-numbered charging pile; the charging piles with the initial storage capacity of the first-numbered charging pile, the initial storage capacity of the second-numbered charging pile, and the initial storage capacity of the N-numbered charging pile that are greater than or equal to the preset storage capacity are extracted to obtain the number of the charging pile for discharging in the distribution network direction; the discharge amount in the distribution network direction is evenly distributed to the charging pile numbers for discharging in the distribution network direction to generate a discharge plan in the distribution network direction; the user-side discharge plan is configured, wherein the user-side discharge plan is to discharge the charging pile energy storage battery in real time based on user needs; according to the distribution network direction discharge plan and the user-side discharge plan, a bidirectional discharge plan for the charging pile is constructed to control the discharge of the charging pile.

[0061] Optionally, the linkage discharge optimization component 14 is further configured to: preset the area charging pile discharge requirements including the required discharge amount of the charging pile and the initial storage amount of the charging pile; extract the first type of charging piles whose required discharge amount of the charging pile is greater than the initial storage amount of the charging pile; extract the second type of charging piles whose required discharge amount of the charging pile is less than the initial storage amount of the charging pile; for the first type of charging piles, activate the power grid for auxiliary discharge, execute energy storage battery discharge for the second type of charging piles, generate a linkage discharge plan, and perform charging pile discharge control.

[0062] Optionally, the charging optimization component 15 is further configured to: configure a power grid AC discharge plan based on the discharge requirements of the charging piles in a preset area, wherein the power grid AC discharge plan is to call on the power grid to AC charge the user through the charging piles based on the user's needs; obtain an initial storage capacity ratio based on the initial storage capacity of the charging piles according to the discharge requirements of the charging piles in the preset area, wherein the initial storage capacity ratio represents the ratio of the remaining power of any charging pile to its power capacity; extract a third type of charging piles whose initial storage capacity ratio is less than or equal to the storage capacity ratio threshold, and configure a power grid charging plan; construct a charging pile charging plan based on the power grid AC discharge plan and the power grid charging plan, and perform charging control on the charging piles.

[0063] Optionally, the system also includes an auxiliary charging component, which is configured to: when the first charging pile is connected to a charging user, obtain the model of the battery to be charged and the amount to be charged; when the initial storage capacity of the first charging pile is less than the amount to be charged, add a fourth type of charging pile; when the initial storage capacity of the first charging pile is greater than the amount to be charged, add a fifth type of charging pile; call the fifth type of charging pile to perform auxiliary charging on the fourth type of charging pile, including: obtaining the missing charging capacity of any fourth type of charging pile, matching the auxiliary charging pile to be scheduled in the fifth type of charging pile, wherein the redundant storage capacity of the auxiliary charging pile to be scheduled is greater than or equal to the missing charging capacity; constructing multiple scheduling lines corresponding to the auxiliary charging pile to be scheduled, activating the line loss prediction channel to perform power loss analysis, and generating a power loss characteristic value, wherein the line loss prediction channel has a graph neural network topology structure; updating the auxiliary charging pile to be scheduled according to a preset number of times to obtain an updated auxiliary charging pile to be scheduled, and determining multiple scheduling lines and power loss characteristic values ​​corresponding to the updated auxiliary charging pile to be scheduled, extracting the charging pile scheduling plan with the smallest power loss characteristic value, and performing auxiliary charging on the fourth type of charging pile.

[0064] The specific example of the multi-mode charge and discharge control method for a charging pile in the aforementioned embodiment 1 is also applicable to the multi-mode charge and discharge control system of a charging pile in this embodiment. Through the aforementioned detailed description of the multi-mode charge and discharge control method for a charging pile, those skilled in the art can clearly understand the multi-mode charge and discharge control system of a charging pile in this embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0065] It should be understood that various forms of processes shown above can be used to reorder, add or delete steps, as long as the expected results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit them here.

[0066] Note that the above are only preferred embodiments of the present disclosure and the technical principles employed. Those skilled in the art will understand that the present disclosure is not limited to the specific embodiments herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present disclosure. Therefore, although the present disclosure has been described in more detail through the above embodiments, the present disclosure is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present disclosure, and the scope of the present disclosure is determined by the scope of the appended claims. Industrial Applicability

[0067] The present invention is applied to the field of charge and discharge control technology. In the disclosed embodiment, by configuring different charging and discharging modes of charging piles, different charging and discharging schemes are set up in conjunction with the power grid according to the power consumption status at different times. During peak power consumption periods, the charging piles are used to discharge in both directions toward the user side and the distribution network, thereby achieving the technical effect of reducing the load pressure on the distribution network. During stable power consumption periods, when the initial storage capacity of the charging piles cannot meet the needs of the user side, the power grid is activated for auxiliary discharge, thereby ensuring that the needs of charging users are met while reducing the charging pressure of the charging piles. During low power consumption periods, the charging users of the charging piles are charged through the power grid, and at the same time, the charging piles that need to be charged are charged through the power grid, thereby ensuring that the charging piles are fully charged, avoiding insufficient storage capacity when switching to the peak mode later, and achieving the technical effect of charge and discharge balance regulation in different modes. In this way, adaptive adjustment of charge and discharge control based on the power grid load scenario is achieved, thereby achieving the technical effect of improving scenario adaptability.

Claims

1. A multi-mode charging and discharging control method for a charging pile, comprising: Configuring charging and discharging modes of the charging pile, wherein the charging and discharging modes of the charging pile include peak mode, flat mode and valley mode; When the preset update cycle is met, the power consumption information of the preset regional power grid in the preset time zone is counted to obtain the peak time period, the average time period and the valley time period; When in the peak period, the peak mode is activated, the discharge demand of the charging pile in the preset area is received, the bidirectional discharge optimization of the charging pile is performed, the bidirectional discharge plan of the charging pile is generated, and the discharge control of the charging pile is performed; When in the flat value period, start the flat mode, receive the discharge demand of the charging piles in the preset area, perform charging pile linkage discharge optimization, generate a linkage discharge plan, and perform charging pile discharge control; When in the valley period, the valley mode is activated, the discharge demand of the charging pile in the preset area is received, the charging optimization of the charging pile is executed, the charging plan of the charging pile is generated, and the charging control of the charging pile is performed.

2. The method of claim 1, wherein: When the preset update cycle is met, the power consumption information of the preset regional power grid in the preset time zone is counted to obtain the peak period, average period and valley period, including: The power consumption information of the preset regional power grid includes a preset regional power consumption timetable, and constructs a power consumption fluctuation time series curve; Configure peak power consumption range, average power consumption range and valley power consumption range; According to the peak power consumption range, the average power consumption range and the valley power consumption range, the power consumption fluctuation timing curve is divided into time zones to generate the peak time period, the average time period and the valley time period.

3. The method of claim 2, wherein: The preset regional power grid power consumption information includes a preset regional power consumption timetable, and constructing a power consumption fluctuation time series curve includes: Extracting a plurality of recorded power consumptions at the first moment of the power consumption timetable of the preset area; Sorting the plurality of recorded power consumptions from small to large to generate a recorded power consumption sorting result; Extracting the first recorded power consumption with a sequence number of one quarter of the recorded power consumption sorting result and the second recorded power consumption with a sequence number of three quarters; Calculating the deviation between the second recorded power consumption and the first recorded power consumption to generate an interquartile range of power consumption; According to the quartile range of electricity consumption, the first recorded electricity consumption and the second recorded electricity consumption, Constructing a concentrated box-and-whisker diagram, distributing the plurality of recorded power consumptions, obtaining the maximum power consumption of the concentrated box, and setting it as the power consumption at the first moment; The above method for determining the power consumption at the first moment is adopted to determine the power consumption of each of the multiple unit moments, and to construct the power consumption fluctuation time series curve.

4. The method of claim 1, wherein: When in the peak period, the peak mode is activated, the discharge demand of the charging pile in the preset area is received, the bidirectional discharge optimization of the charging pile is performed, the bidirectional discharge plan of the charging pile is generated, and the discharge control of the charging pile is performed, including: The charging pile discharge demand in the preset area includes the required discharge amount of the charging pile and the initial storage amount of the charging pile; Obtaining redundant storage capacity of the charging pile according to the required discharge capacity of the charging pile and the initial storage capacity of the charging pile; At most two-thirds of the redundant storage capacity of the charging pile is set as the discharge capacity in the direction of the distribution network; According to the discharge amount in the distribution network direction, the charging pile bidirectional discharge optimization is performed, the charging pile bidirectional discharge plan is generated, and the charging pile discharge control is performed.

5. The method of claim 4, wherein: According to the discharge amount in the distribution network direction, the charging pile bidirectional discharge optimization is performed, the charging pile bidirectional discharge plan is generated, and the charging pile discharge control is performed, including: The initial storage capacity of the charging pile includes the initial storage capacity of the first numbered charging pile, the initial storage capacity of the second numbered charging pile, and the initial storage capacity of the Nth numbered charging pile; Extract the charging piles whose initial storage capacity is greater than or equal to the preset storage capacity from the initial storage capacity of the first numbered charging pile, the initial storage capacity of the second numbered charging pile, and the initial storage capacity of the Nth numbered charging pile, to obtain the number of the discharging charging pile in the distribution network direction; The discharge amount in the distribution network direction is evenly distributed to the numbers of the discharge charging piles in the distribution network direction, and a discharge plan in the distribution network direction is generated; Configure a user-side discharging plan, wherein the user-side discharging plan is to discharge the energy storage battery of the charging pile in real time based on user needs; According to the distribution network direction discharge plan and the user side direction discharge plan, the charging pile bidirectional discharge plan is constructed to perform charging pile discharge control.

6. The method of claim 1, wherein: When in the flat value period, the flat mode is started, the discharge demand of the charging piles in the preset area is received, the charging pile linkage discharge optimization is performed, the linkage discharge plan is generated, and the charging pile discharge control is performed, including: The charging pile discharge demand in the preset area includes the required discharge amount of the charging pile and the initial storage amount of the charging pile; Extracting a first type of charging pile whose required discharge amount of the charging pile is greater than the initial storage amount of the charging pile; Extracting a second type of charging pile whose required discharge amount of the charging pile is less than the initial storage amount of the charging pile; For the first type of charging pile, the power grid is activated for auxiliary discharge, and for the second type of charging pile, the energy storage battery is discharged, the linkage discharge plan is generated, and the charging pile discharge control is performed.

7. The method of claim 1, wherein: When in the valley period, the valley mode is activated, the discharge demand of the charging pile in the preset area is received, the charging optimization of the charging pile is performed, the charging plan of the charging pile is generated, and the charging control of the charging pile is performed, including: According to the discharge demand of the charging pile in the preset area, a power grid AC discharge plan is configured, wherein the power grid AC discharge plan is to call the power grid to charge the user through the charging pile based on the user's demand; According to the initial storage capacity of the charging piles required for the discharge of the charging piles in the preset area, an initial storage capacity ratio is obtained, wherein the initial storage capacity ratio represents the ratio of the remaining power of any charging pile to its electric energy capacity; Extracting a third type of charging pile whose initial power storage capacity ratio is less than or equal to the power storage capacity ratio threshold, and configuring a power grid charging plan; According to the power grid AC discharge plan and the power grid charging plan, the charging pile charging plan is constructed to perform charging control on the charging pile.

8. The method of claim 4, wherein: Also includes: When the first charging pile is connected to a charging user, the model and amount of the battery to be charged are obtained; When the initial power storage capacity of the first charging pile is less than the amount to be charged, a fourth type of charging pile is added; When the initial storage capacity of the first charging pile is greater than the amount to be charged, a fifth type of charging pile is added; Retrieving the fifth type of charging pile to perform auxiliary charging on the fourth type of charging pile includes: Obtaining the missing charge amount of any one of the fourth type charging piles, and matching the auxiliary charging pile to be scheduled among the fifth type charging piles, wherein the redundant storage capacity of the auxiliary charging pile to be scheduled is greater than or equal to the missing charge amount; Constructing a plurality of dispatching lines corresponding to the auxiliary charging piles to be dispatched, activating a line loss prediction channel to perform power loss analysis, and generating power loss characteristic values, wherein the line loss prediction channel has a graph neural network topology structure; The auxiliary charging pile to be scheduled is updated according to a preset number of times to obtain an updated auxiliary charging pile to be scheduled, and multiple scheduling routes and power loss characteristic values ​​corresponding to the updated auxiliary charging pile to be scheduled are determined, and the charging pile scheduling plan with the smallest power loss characteristic value is extracted to perform auxiliary charging on the fourth type of charging pile.

9. A multi-mode charging and discharging control system for a charging pile, used to execute the steps of the method according to any one of claims 1 to 8, the system comprising: A charge and discharge mode configuration component, wherein the charge and discharge mode configuration component is configured to configure the charge and discharge mode of the charging pile, wherein the charge and discharge mode of the charging pile includes a peak mode, a flat mode, and a valley mode; An electricity consumption information statistics component, wherein the electricity consumption information statistics component is configured to collect statistics on electricity consumption information of a preset regional power grid in a preset time zone when a preset update cycle is met, and obtain peak time periods, average time periods, and valley time periods; A bidirectional discharge optimization component, wherein the bidirectional discharge optimization component is configured to start the peak mode when in the peak period, receive the charging pile discharge demand in the preset area, perform bidirectional discharge optimization of the charging pile, generate a bidirectional discharge plan for the charging pile, and perform charging pile discharge control; A linkage discharge optimization component, wherein the linkage discharge optimization component is configured to start the flat mode when in the flat value period, receive the discharge demand of the charging piles in the preset area, perform the linkage discharge optimization of the charging piles, generate a linkage discharge plan, and perform the discharge control of the charging piles; The charging optimization component is configured to start the valley mode when in the valley period, receive the discharge demand of the charging piles in the preset area, perform charging optimization for the charging piles, generate a charging plan for the charging piles, and perform charging control for the charging piles.

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