Vehicle network interaction system and method based on court autonomous control mode, terminal and storage medium

Abstract

The invention belongs to the technical field of vehicle network interaction service control, and particularly provides a vehicle network interaction system and method based on a court autonomous control mode, a terminal and a storage medium, and the system comprises an aggregation interaction module, an ordered charging master station, a vehicle network interaction controller and a charging pile. The aggregation interaction module is connected to the charging pile through the ordered charging main station and the vehicle network interaction controller in sequence, the charging pile is connected to the electric vehicle, and the electric vehicle is not charged or discharged; according to the invention, by using the electric vehicle as a flexible resource and combining user autonomous participation and intelligent regulation and control, efficient information energy interaction between the charging pile and the power grid is realized, the diversification of the power market is promoted, the flexibility and reliability of the power grid are remarkably improved, and load fluctuation and emergencies are effectively coped with. Meanwhile, the aggregation interaction module dynamically predicts the future load based on the historical load, a scientific basis is provided for ordered charging, and power balance is optimized.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle-grid interactive service control, and specifically relates to a vehicle-grid interactive system, method, terminal and storage medium based on a substation autonomous control mode. Background Art

[0002] With the popularization of electric vehicles and the rapid development of new power systems, "vehicle-grid interaction" as an innovative energy management model is gradually becoming an important part of smart grid construction. This model uses electric vehicles as flexible and adjustable resources, and realizes efficient information and energy interaction between charging piles and power grids through a combination of user autonomous participation and intelligent regulation. This interaction not only promotes the diversified development of the power market, but also significantly improves the flexibility and reliability of the power grid.

[0003] As the terminal unit of the power system, the operating status of the distribution substation directly affects the power balance, load characteristics, power supply reliability and power quality of the entire system. Especially in the context of a large number of charging piles and charging vehicles connected to the user side, how to effectively manage these distributed resources and ensure the autonomy of the substation has become a major challenge facing the construction of a new power system.

[0004] However, most existing energy management systems (EMS) use centralized control methods, which are difficult to adapt to the flexible control needs of a large number of users and massive distributed resources on the load side. These systems usually contain multi-layer and multi-level devices such as servers, data gateways, and controllers, which not only increase the complexity and cost of the system, but also may lead to problems such as poor compatibility between devices, high prices, difficult installation and deployment, and data security risks. In addition, the functions of the current charging pile control terminals in the distribution network are relatively simple, supporting only simple calculations and controls, and cannot fully tap the potential of electric vehicles in grid control. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a vehicle-grid interaction system, method, terminal and storage medium based on a substation autonomous control mode to solve the above-mentioned technical problems.

[0006] In a first aspect, the present invention provides a vehicle-grid interaction system based on a substation autonomous control mode, comprising an aggregation interaction module, an orderly charging master station, a vehicle-grid interaction controller and a charging pile; the aggregation interaction module is connected to the charging pile through the orderly charging master station and the vehicle-grid interaction controller in turn, the charging pile is connected to an electric vehicle, and the electric vehicle is charged and discharged; The aggregation interaction module is used to issue control instructions according to the needs of the power generation side and the power grid side, and based on the stored historical load information of each transformer area, dynamically adjust the weight of the historical load data of the same period according to the time decay principle to generate future time period load forecast data with the first preset time length as the time period and the second preset time length as the total time length, and periodically send the load forecast data to the orderly charging master station of the corresponding transformer area for it to participate in the scheduling of orderly charging and vehicle-grid interaction; The orderly charging master station is used to receive the load forecast data sent by the aggregation interaction module through the public network, formulate a real-time orderly charging scheduling strategy based on the load forecast data, and send the formulated orderly charging scheduling strategy to the vehicle-grid interaction controller through the wireless network; it is also used to receive real-time charging and load information from the vehicle-grid interaction controller through the wireless network; The vehicle-grid interaction controller is used to receive the orderly charging scheduling strategy issued by the orderly charging master station and report the real-time operation status information of the charging pile to the orderly charging master station; The charging piles, including the ordered charging piles and the V2G charging piles, are used to receive the ordered charging scheduling strategy from the vehicle-grid interaction controller, and to charge and discharge the electric vehicles in an orderly manner according to the ordered charging scheduling strategy to realize the two-way flow of electric energy.

[0007] Further improvements of the present technical solution include: the vehicle-grid interactive controller includes a microprocessor, a power board, a storage unit and a downstream communication port; the microprocessor is connected to the orderly charging main station via a wireless network, the microprocessor is connected to the charging pile via the downstream communication port, the power board is connected to the microprocessor and the entire vehicle-grid interactive controller is powered by the microprocessor, and the storage unit is connected to the microprocessor.

[0008] A further improvement of the technical solution is that the storage unit includes a FLASH flash memory and a DDR4 memory, and internally stores an OTA resource library and an execution strategy library.

[0009] A further improvement of this technical solution is that the orderly charging master station is also used as an OTA upgrade platform for the vehicle-grid interactive controller, with the function of issuing bin files, allowing new bin files to be uploaded through the web and specifying the vehicle-grid interactive controller registered on the network to receive them, thereby realizing remote updating and maintenance.

[0010] A further improvement of the technical solution is that the downlink communication port includes a Modbus communication interface, an Ethernet communication interface and an RS232 communication interface.

[0011] A further improvement of the technical solution is that the orderly charging scheduling strategy issued by the orderly charging master station includes power adjustment instructions, upgrade and maintenance data and instructions, operation instructions, sequence control instructions and timing instructions. The vehicle-grid interactive controller adjusts the charging power and charging and discharging actions of the charging pile according to the orderly charging scheduling strategy issued by the orderly charging master station.

[0012] In a second aspect, the present invention provides a vehicle-grid interaction method based on a substation autonomous control mode, comprising: The aggregation interaction module generates control instructions through the aggregation interaction module according to the needs of the power generation side and the power grid side, and dynamically adjusts the weight of the historical load data in the same period according to the time decay principle based on the stored historical load information of the transformer area, and generates load forecast data for the future period with the first preset time length as the time period and the second preset time length as the total time length; the load forecast data is periodically sent to the orderly charging master station of the corresponding transformer area to support the scheduling of orderly charging and vehicle-grid interaction; The orderly charging master station receives the load forecast data sent by the aggregation interaction module through the public network, formulates a real-time orderly charging scheduling strategy based on the load forecast data, and sends the formulated orderly charging scheduling strategy to the vehicle-grid interaction controller through the wireless network; at the same time, it receives real-time charging and load information from the vehicle-grid interaction controller through the wireless network; The vehicle-grid interactive controller receives the orderly charging scheduling strategy issued by the orderly charging master station, and reports the real-time operating status information of the charging pile to the orderly charging master station; The charging pile receives the orderly charging scheduling strategy from the vehicle-grid interactive controller, and performs orderly charging and discharging operations on the connected electric vehicles according to the strategy to achieve a two-way flow of electric energy.

[0013] In a third aspect, a terminal is provided, including: processor, memory, wherein: The memory is used to store computer programs. The processor is used to call and run the computer program from the memory, so that the terminal executes the above-mentioned terminal method.

[0014] According to a fourth aspect, a computer storage medium is provided, wherein the computer-readable storage medium stores instructions, and when the instructions are executed on a computer, the computer executes the methods described in the above aspects.

[0015] The beneficial effect of the present invention is that, by utilizing electric vehicles as flexible resources, combined with user autonomous participation and intelligent regulation, the present invention realizes efficient information and energy interaction between charging piles and power grids, promotes the diversification of the power market, significantly improves the flexibility and reliability of the power grid, and effectively responds to load fluctuations and emergencies. At the same time, the aggregation interaction module dynamically predicts future loads based on historical loads, provides a scientific basis for orderly charging, and optimizes power balance. The constructed substation autonomous system architecture efficiently manages distributed resources, reduces dependence on centralized EMS, simplifies system structure, and enhances data security and equipment compatibility. In particular, charging piles support V2G functions, further tapping the potential of electric vehicles in power grid regulation and improving emergency response and resource utilization efficiency.

[0016] In addition, the invention has a reliable design principle, a simple structure and a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is a schematic block diagram of a system according to an embodiment of the present invention.

[0019] Figure 2 is a schematic flow chart of a method according to an embodiment of the present invention.

[0020] Figure 3 A schematic diagram of the structure of a terminal provided by an embodiment of the present invention.

[0021] 110 is an aggregation interaction module, 120 is an orderly charging main station, 130 is a vehicle-grid interaction controller, 131 is a microprocessor, 132 is a power board, 133 is a storage unit, 134 is a downlink communication port, and 140 is a charging pile. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] like Figure 1 As shown, the present invention provides a vehicle-grid interaction system based on a substation autonomous control mode, including an aggregation interaction module, an orderly charging master station, a vehicle-grid interaction controller and a charging pile; the aggregation interaction module is connected to the charging pile through the orderly charging master station and the vehicle-grid interaction controller in turn, and the charging pile is connected to the electric vehicle, and the electric vehicle is charged and discharged.

[0025] Specifically, the aggregation interaction module is used to issue control instructions according to the needs of the power generation side and the power grid side, and based on the stored historical load information of each transformer area, according to the time decay principle, dynamically adjust the weight of the historical load data of the same period to generate future time period load forecast data with a first preset time period as the time period and a second preset time period as the total time period, and periodically send the load forecast data to the orderly charging master station of the corresponding transformer area for its participation in the orderly charging and vehicle-grid interaction scheduling; the orderly charging master station is used to receive the load forecast data sent by the aggregation interaction module through the public network, formulate a real-time orderly charging scheduling strategy based on the load forecast data, and send the formulated orderly charging scheduling strategy to the vehicle-grid interaction controller through the wireless network; it is also used to receive real-time charging and load information from the vehicle-grid interaction controller through the wireless network; the vehicle-grid interaction controller is used to receive the orderly charging scheduling strategy sent by the orderly charging master station, and report the real-time operation status information of the charging pile to the orderly charging master station; the charging pile includes an orderly charging pile and a V2G charging pile, which is used to receive the orderly charging scheduling strategy from the vehicle-grid interaction controller, and orderly charge and discharge the electric vehicle according to the orderly charging scheduling strategy to realize the two-way flow of electric energy.

[0026] Among them, the vehicle-grid interactive controller includes a microprocessor, a power board, a storage unit and a downlink communication port; the microprocessor is connected to the orderly charging main station through a wireless network, the microprocessor is connected to the charging pile through a downlink communication port, the power board is connected to the microprocessor and the entire vehicle-grid interactive controller is powered by the microprocessor, and the storage unit is connected to the microprocessor. Specifically, the wireless network includes 4G / 5G modules, WiFi modules, etc., and also includes a Lora communication unit and a CAT communication unit with OTA function. The Lora communication unit is used to establish communication with the subordinate orderly charging piles and V2G charging piles, report real-time charging information and receive power adjustment instructions; the CAT communication unit with OTA function is used to access the public network to receive the bin file required for OTA upgrades issued by the superior orderly charging main station.

[0027] In addition, the storage unit includes FLASH flash memory and DDR4 memory, and internally stores an OTA resource library and an execution strategy library.

[0028] In order to improve communication efficiency, the downstream communication port is equipped with Modbus communication interface, Ethernet communication interface and RS232 communication interface.

[0029] Specifically, the microprocessor is used to execute the corresponding strategies in the execution strategy library stored in the storage unit, and to control the orderly charging piles or V2G charging piles under its jurisdiction to issue instructions through the downlink communication port to control the charging start and stop, charging power, charging time, and feeding network discharge of the orderly charging piles or V2G charging piles. The microprocessor is also used to receive and execute the upgrade maintenance data and instructions issued by the upper platform (aggregation interaction module or orderly charging master station) through the wireless network, perform remote upgrades according to the received upgrade maintenance data and instructions, and store the received upgrade maintenance data and instructions in the OTA resource library in the storage unit to prepare for program software and policy changes.

[0030] In addition, the orderly charging master station is also used as an OTA upgrade platform for the vehicle-grid interactive controller. It has the function of issuing bin files, allowing new bin files to be uploaded through the web and specifying the vehicle-grid interactive controller registered on the network to receive them, thereby realizing remote updates and maintenance.

[0031] Finally, the orderly charging scheduling strategy issued by the orderly charging master station includes power adjustment instructions, upgrade and maintenance data and instructions, operation instructions, sequence control instructions and timing instructions. The vehicle-grid interactive controller adjusts the charging power and charging and discharging actions of the charging pile according to the orderly charging scheduling strategy issued by the orderly charging master station.

[0032] like Figure 2 As shown, the present invention provides a vehicle-grid interaction method based on a substation autonomous control mode, comprising: Step 210: The aggregation interaction module generates control instructions through the aggregation interaction module according to the needs of the power generation side and the power grid side, and dynamically adjusts the weight of the historical load data in the same period according to the time decay principle based on the stored historical load information of the transformer area, and generates load forecast data for the future period with the first preset time length as the time period and the second preset time length as the total time length; the load forecast data is periodically sent to the orderly charging master station of the corresponding transformer area to support the scheduling of orderly charging and vehicle-grid interaction; Step 220, the orderly charging master station receives the load forecast data sent by the aggregation interaction module through the public network, formulates a real-time orderly charging scheduling strategy based on the load forecast data, and sends the formulated orderly charging scheduling strategy to the vehicle-grid interaction controller through the wireless network; at the same time, receives real-time charging and load information from the vehicle-grid interaction controller through the wireless network; Step 230, the vehicle-grid interaction controller receives the orderly charging scheduling strategy issued by the orderly charging master station, and reports the real-time operation status information of the charging pile to the orderly charging master station; Step 240 , the charging pile receives the orderly charging scheduling strategy from the vehicle-grid interaction controller, and performs orderly charging and discharging operations on the connected electric vehicles according to the strategy to achieve a two-way flow of electric energy.

[0033] Figure 3 A schematic diagram of the structure of a terminal 300 provided in an embodiment of the present invention. The terminal 300 can be used to execute the vehicle-grid interaction method based on the substation autonomous control mode provided in an embodiment of the present invention.

[0034] The terminal 300 may include: a processor 310, a memory 320 and a communication module 330. These components communicate via one or more buses. Those skilled in the art will appreciate that the server structure shown in the figure does not limit the present invention, and it may be a bus structure or a star structure, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0035] The memory 320 can be used to store the execution instructions of the processor 310, and the memory 320 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. When the execution instructions in the memory 320 are executed by the processor 310, the terminal 300 can perform some or all of the steps in the following method embodiments.

[0036] The processor 310 is the control center of the storage terminal, and uses various interfaces and lines to connect various parts of the entire electronic terminal. It runs or executes software programs and / or modules stored in the memory 320, and calls data stored in the memory to perform various functions of the electronic terminal and / or process data. The processor can be composed of an integrated circuit (IC), for example, it can be composed of a single packaged IC, or it can be composed of multiple packaged ICs with the same or different functions. For example, the processor 310 can only include a central processing unit (CPU). In the embodiment of the present invention, the CPU can be a single computing core or multiple computing cores.

[0037] The communication module 330 is used to establish a communication channel so that the storage terminal can communicate with other terminals, receive user data sent by other terminals or send user data to other terminals.

[0038] The present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and when the program is executed, the program may include some or all of the steps in each embodiment provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).

[0039] Those skilled in the art can clearly understand that the technology in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the technical solution in the embodiments of the present invention, in essence or in other words, the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes, including several instructions for enabling a computer terminal (which can be a personal computer, a server, or a second terminal, a network terminal, etc.) to execute all or part of the steps of the methods described in each embodiment of the present invention.

[0040] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

[0041] In the several embodiments provided by the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of systems or modules, which can be electrical, mechanical or other forms.

[0042] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0043] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0044] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A vehicle-grid interaction system based on the autonomous control mode of the substation, characterized in that: It includes an aggregation interaction module, an orderly charging master station, a vehicle-grid interaction controller and charging piles; The aggregation interaction module is connected to the charging pile through the orderly charging master station and the vehicle-grid interaction controller in turn, and the charging pile is connected to the electric vehicle to charge and discharge the electric vehicle; The aggregation interaction module is used to issue control instructions according to the needs of the power generation side and the power grid side, and based on the stored historical load information of each transformer area, dynamically adjust the weight of the historical load data of the same period according to the time decay principle to generate future time period load forecast data with the first preset time length as the time period and the second preset time length as the total time length, and periodically send the load forecast data to the orderly charging master station of the corresponding transformer area for it to participate in the scheduling of orderly charging and vehicle-grid interaction; The orderly charging master station is used to receive the load forecast data sent by the aggregation interaction module through the public network, formulate a real-time orderly charging scheduling strategy based on the load forecast data, and send the formulated orderly charging scheduling strategy to the vehicle-grid interaction controller through the wireless network; it is also used to receive real-time charging and load information from the vehicle-grid interaction controller through the wireless network; The vehicle-grid interaction controller is used to receive the orderly charging scheduling strategy issued by the orderly charging master station and report the real-time operation status information of the charging pile to the orderly charging master station; The charging piles, including the ordered charging piles and the V2G charging piles, are used to receive the ordered charging scheduling strategy from the vehicle-grid interaction controller, and to charge and discharge the electric vehicles in an orderly manner according to the ordered charging scheduling strategy to realize the two-way flow of electric energy.

2. The vehicle-grid interaction system based on the autonomous control mode of the substation according to claim 1 is characterized in that: The vehicle-grid interactive controller includes a microprocessor, a power board, a storage unit and a downstream communication port; the microprocessor is connected to the orderly charging main station through a wireless network, the microprocessor is connected to the charging pile through the downstream communication port, the power board is connected to the microprocessor and supplies power to the entire vehicle-grid interactive controller through the microprocessor, and the storage unit is connected to the microprocessor.

3. The vehicle-grid interaction system based on the autonomous control mode of the substation according to claim 2 is characterized in that: The storage unit includes FLASH flash memory and DDR4 memory, and internally stores an OTA resource library and an execution strategy library.

4. The vehicle-grid interaction system based on the autonomous control mode of the substation according to claim 3 is characterized in that: The orderly charging master station is also used as an OTA upgrade platform for the vehicle-grid interactive controller. It has the function of issuing bin files, allowing new bin files to be uploaded through the web and specifying the vehicle-grid interactive controller registered on the network to receive them, thereby realizing remote updates and maintenance.

5. The vehicle-grid interaction system based on the autonomous control mode of the substation according to claim 1 is characterized in that: The downstream communication ports include Modbus communication interface, Ethernet communication interface and RS232 communication interface.

6. The vehicle-grid interaction system based on the autonomous control mode of the substation according to claim 1 is characterized in that: The orderly charging scheduling strategy issued by the orderly charging master station includes power adjustment instructions, upgrade and maintenance data and instructions, operation instructions, sequence control instructions and timing instructions. The vehicle-grid interactive controller adjusts the charging power and charging and discharging actions of the charging pile according to the orderly charging scheduling strategy issued by the orderly charging master station.

7. A vehicle-grid interaction method based on a substation autonomous control mode, characterized in that: include: The aggregation interaction module generates control instructions through the aggregation interaction module according to the needs of the power generation side and the power grid side, and dynamically adjusts the weight of the historical load data in the same period according to the time decay principle based on the stored historical load information of the transformer area, and generates future time period load forecast data with the first preset time length as the time period and the second preset time length as the total time length; The load forecast data is periodically sent to the orderly charging master station of the corresponding transformer area to support the scheduling of orderly charging and vehicle-grid interaction; The orderly charging master station receives the load forecast data sent by the aggregation interaction module through the public network, formulates a real-time orderly charging scheduling strategy based on the load forecast data, and sends the formulated orderly charging scheduling strategy to the vehicle-grid interaction controller through the wireless network; at the same time, it receives real-time charging and load information from the vehicle-grid interaction controller through the wireless network; The vehicle-grid interactive controller receives the orderly charging scheduling strategy issued by the orderly charging master station, and reports the real-time operating status information of the charging pile to the orderly charging master station; The charging pile receives the orderly charging scheduling strategy from the vehicle-grid interactive controller, and performs orderly charging and discharging operations on the connected electric vehicles according to the strategy to achieve a two-way flow of electric energy.

8. A terminal, characterized in that: include: processor; A memory for storing execution instructions of the processor; Wherein, the processor is configured to execute the method of claim 7.

9. A computer-readable storage medium storing a computer program, characterized in that: When the program is executed by a processor, the method according to claim 7 is implemented.

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