Autonomous V2G charging station power management method, system, device and medium

Abstract

The invention discloses an autonomous V2G charging station power supply management method, system and device, and a medium, mainly relates to the technical field of power supply management, and is used for solving the problem that the regulation and control main body of the existing autonomous V2G regulation and control scheme is each electric vehicle, and the regulation and control difficulty is large. Comprising the following steps: establishing a connection relationship between a V2G charger corresponding to a current power supply point and a local controller; establishing a connection relationship between the local controller and the power grid dispatching platform; vehicle information corresponding to the V2G charger is obtained through a local controller, the vehicle information is uploaded to a power grid dispatching platform, and a regulation and control instruction issued by the power grid dispatching platform is received; the local controller enables the actual load power of the power supply corresponding to the current power supply point to be equal to the power limit value by regulating and controlling the charging and discharging power of other connecting equipment; the connection device comprises a V2G charger or a V2G charger and a distributed energy storage assembly.

Description

Technical Field

[0001] The present application relates to the technical field of autonomous V2G charging station management, and in particular to an autonomous V2G charging station power management method, system, device and medium. Background Art

[0002] With the rapid development of electric vehicles, in large-scale application environments, electric vehicles, as a mobile energy storage resource, are not only load nodes in the power grid, but can also send power back to the power grid through vehicle-to-grid interaction (V2G Vehicle-to-Grid) technology. The V2G dispatching system consists of V2G charging and discharging piles, power loads, renewable energy power generation equipment and traditional generator equipment. All system components interact in real time through bidirectional information and energy flows. The information flow includes two-way communication between the V2G dispatching center and distributed generation, charging pile operators, power loads and EVs. The energy flow includes the two-way flow of energy between the power grid and charging piles, and between charging piles and EVs.

[0003] At present, the main implementation method of V2G is autonomous V2G. Autonomous V2G means that all new energy vehicles are equipped with on-board information transmission devices, which can interact with the smart grid in real time. According to the reactive power demand and price information released by the smart grid, the vehicle selectively responds according to its own battery power and other conditions. The main feature of this method is that it has extremely high flexibility. Each electric vehicle is scattered everywhere as an independent node. In this control method, there is a lot of randomness in the individual charging process, and there are many factors that affect V2G regulation. The control strategy will face greater pressure when dealing with large-scale V2G vehicle access, which may lead to large control deviations.

[0004] Therefore, there is an urgent need for an autonomous V2G charging station power management system, method and medium to solve the problem that the autonomous V2G control scheme involves each electric vehicle as the control subject, and there are too many control subjects, which leads to greater control difficulty. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present application provides an autonomous V2G charging station power management system, method and medium to solve the problem that the existing autonomous V2G control scheme has each electric vehicle as the control subject, resulting in great control difficulty.

[0006] In a first aspect, the present application provides an autonomous V2G charging station power management method, the method comprising: Establish a connection relationship between the V2G charger corresponding to the current power source point and the local controller; establish a connection relationship between the local controller and the power grid dispatching platform; obtain the vehicle information corresponding to the V2G charger through the local controller, upload the vehicle information to the power grid dispatching platform, and receive the control instructions issued by the power grid dispatching platform; wherein the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging; adjust the charging and discharging power of the vehicle corresponding to the V2G charger to the adjustment target value corresponding to the control instruction through the local controller; when the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value; wherein the connected devices include the V2G charger or the V2G charger and the distributed energy storage component.

[0007] The power management method provided in the embodiment of the present application configures a corresponding local controller at each power point (for example, a transformer) (these local controllers regulate a small number of V2G chargers inside the power point. Since relatively few regulation subjects are involved, the complexity and implementation difficulty of regulation are reduced. In addition, these local controllers are directly connected to the power grid dispatching platform. This architecture enables the power grid dispatching platform to easily obtain real-time dispatching results fed back by the local controllers, or directly issue regulation instructions to the local controllers as needed. The number of docking subjects of the power grid dispatching platform is reduced, the regulation process is further simplified, and the difficulty and complexity of regulation are reduced.

[0008] In one implementation of the present application, when the connection device only includes a V2G charger, When the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value, including: When the charging and discharging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power increase value of each connected device; When the charging and discharging power of a vehicle with a V2G charger is greater than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power reduction value of each connected device.

[0009] In one implementation of the present application, before the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power increase value of each connected device, the method further includes: Obtaining a preset scheduling strategy through a preset interface; wherein the preset scheduling strategy includes a priority scheduling strategy, and the priority scheduling strategy includes the priority of each connected device; The priority scheduling strategies include: When the charging power of a vehicle with a V2G charger is less than the adjustment target value, the charging power of the connected devices that the owner agrees to participate in charging is adjusted to the maximum allowed charging power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices whose owners agree to participate in the discharge is adjusted to the maximum allowable discharge power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0; When the charging power of a vehicle with a V2G charger is greater than the adjustment target value, the charging power of the connected devices for which the owner agrees to participate in charging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices for which the owner's willingness to participate in the discharge is agreed will be adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0.

[0010] In one implementation of the present application, when the connection device includes a V2G charger and a distributed energy storage component, When the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value, specifically including: Obtain the operating status of distributed energy storage components; When the operating conditions are such that the discharge conditions are not met; When the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power increase value of each connected device; When the discharge power of the vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the increased discharge power value allocated to the V2G charger in the connected device; When the operating conditions are such that discharge conditions are met; When the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power reduction value of each connected device; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time discharge power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power reduction value of the V2G charger in the connected device.

[0011] In a second aspect, the present application provides an autonomous V2G charging station power management system, the system comprising: Establish a module, used to establish a connection relationship between the V2G charger corresponding to the current power source point and the local controller; establish a connection relationship between the local controller and the power grid dispatching platform; the local controller is used to obtain the vehicle information corresponding to the V2G charger, upload the vehicle information to the power grid dispatching platform, and receive the control instructions issued by the power grid dispatching platform; wherein the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging; it is also used to adjust the charging and discharging power of the vehicle corresponding to the V2G charger to the adjustment target value corresponding to the control instruction; when the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller is also used to adjust the charging and discharging power of other connected devices so that the actual load power of the power source corresponding to the current power source point is equal to the power limit value; wherein the connected devices include the V2G charger or the V2G charger and the distributed energy storage component.

[0012] In one implementation of the present application, when the connection device only includes a V2G charger, the local controller includes a first regulating component, When the charging and discharging power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the increased charging and discharging power allocated to each connected device; when the charging and discharging power of a vehicle with a V2G charger is greater than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the decreased charging and discharging power allocated to each connected device.

[0013] In one implementation of the present application, the local controller includes a policy acquisition component, which is used to obtain a preset scheduling policy through a preset interface; wherein the preset scheduling policy includes a priority scheduling policy, and the priority scheduling policy includes the priority of each connected device; The priority scheduling strategies include: When the charging power of a vehicle with a V2G charger is less than the adjustment target value, the charging power of the connected devices that the owner agrees to participate in charging is adjusted to the maximum allowed charging power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices whose owners agree to participate in the discharge is adjusted to the maximum allowable discharge power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0; When the charging power of a vehicle with a V2G charger is greater than the adjustment target value, the charging power of the connected devices for which the owner agrees to participate in charging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices for which the owner's willingness to participate in the discharge is agreed will be adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0.

[0014] In one implementation of the present application, when the connection device includes a V2G charger and a distributed energy storage component, the local controller includes a second control component for obtaining the operating status of the distributed energy storage component; when the operating status is that the discharge condition is not met; when the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connection device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power increase value of each connected device; when the discharge power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connection device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power increase value of the V2G charger in the connection device; When the operating conditions are such that the discharge conditions are met; when the charging power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power reduction value of each connected device; when the discharge power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time discharge power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power reduction value of the V2G charger in the connected device.

[0015] In a third aspect, the present application provides an autonomous V2G charging station power management device, the device comprising: A processor; and a memory having executable code stored thereon, which, when the executable code is executed, causes the processor to execute an autonomous V2G charging station power management method as described above.

[0016] In a fourth aspect, the present application provides a non-volatile computer storage medium having computer instructions stored thereon, which when executed implement an autonomous V2G charging station power management method as described above.

[0017] Those skilled in the art can understand that the present application has at least the following beneficial effects: The present application provides a power management method, system, device and medium for an autonomous V2G charging station, proposes a power management architecture for an autonomous V2G charging station, transforms the control of a single charging process (V2G charger) in V2G dispatching control into control for power source points, reduces the impact of individual vehicle randomness on the system, thereby reducing the complexity of the V2G dispatching strategy, improving the quality of V2G regulation, and ensuring the safety and stability of the underlying system. Specifically, by configuring a corresponding local controller at each power source point (e.g., transformer), the power grid dispatching platform sends the overall control plan (power limit value) of the power source point and the adjustment target value of a single device to the local controller, and then controls a small number of V2G chargers in the power source point through the local controller, involving fewer control subjects and thus reducing the difficulty of control. In addition, the local controller is connected to the power grid dispatching platform, and the power grid dispatching platform can directly obtain the dispatching results fed back by the local controller or directly issue control instructions to the local controller, reducing the number of docking subjects of the power grid dispatching platform, thereby reducing the difficulty of control. It solves the problem that the control subject involved in the existing autonomous V2G control scheme is each electric vehicle, and there are too many control subjects, which leads to greater control difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Some embodiments of the present disclosure are described below with reference to the accompanying drawings, in which: Figure 1 This is a flow chart of an autonomous V2G charging station power management method provided in an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the internal structure of an autonomous V2G charging station power management system provided in an embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the internal structure of an autonomous V2G charging station power management device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] It should be understood by those skilled in the art that the embodiments described below are only preferred embodiments of the present disclosure, and do not mean that the present disclosure can only be implemented through the preferred embodiments. The preferred embodiments are only used to explain the technical principles of the present disclosure, and are not used to limit the protection scope of the present disclosure. Based on the preferred embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present disclosure.

[0022] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0023] The technical solution proposed in the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0024] The embodiment provides an autonomous V2G charging station power management method, such as Figure 1 As shown, the method provided in the embodiment of the present application mainly includes the following steps: Step 110: Establish a connection relationship between the V2G charger corresponding to the current power source point and the local controller; establish a connection relationship between the local controller and the power grid dispatching platform.

[0025] It should be noted that the power source can be equipment such as transformers. The local controller can receive instructions from the power grid dispatching platform through wireless communication (4G) to establish a connection relationship between the local controller and the power grid dispatching platform. The local controller can establish a connection relationship between the V2G charger corresponding to the current power source and the local controller through the control bus (industrial control buses such as CAN / Ethernet can be used to establish a local control network at the local V2G charging station through CAN / Ethernet, and formulate control protocols for the local controller and the V2G charging pile control system and the energy storage system. The control protocol mainly includes: the local controller obtains real-time charging and discharging process information, and the local controller adjusts the charging and discharging power of the V2G charging pile and the distributed energy storage system through the control protocol).

[0026] In addition, local controllers usually use embedded controllers with certain computing power (such as ARM v7 and above) and communication interfaces such as CAN / Ethernet / 4G, or industrial control computers. Controllers usually support operating systems (Linux, Win), etc. to support more convenient control software development. The 4G wireless communication of the local controller is used for remote communication with the power dispatching platform, receiving dispatching instructions and reporting local load dynamic data; the control bus (CAN, Ethernet, etc.) of the local controller is used for local real-time information interaction with V2G charging piles and distributed energy storage systems, obtaining charging and discharging process information, and controlling and regulating the charging and discharging of charging piles and energy storage systems.

[0027] Step 120: Obtain vehicle information corresponding to the V2G charger through the local controller, upload the vehicle information to the power grid dispatching platform, and receive the control instructions issued by the power grid dispatching platform.

[0028] It should be noted that the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging.

[0029] Step 130: Adjust the charging and discharging power of the V2G charger corresponding to the vehicle to the adjustment target value corresponding to the control instruction through the local controller.

[0030] Step 140: When the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value.

[0031] It should be noted that the connected devices include V2G chargers or V2G chargers and distributed energy storage components (distributed energy storage components can be used as energy buffers. Usually, distributed energy storage components include battery packs and their management systems, bidirectional converters, EMS controllers, and auxiliary systems such as fire protection; the controller of the distributed energy storage component is connected to the control bus, and sends real-time information according to the control protocol, and accepts charging and discharging control instructions from the local controller).

[0032] As an example, the connected equipment only includes the V2G charger: This step can specifically be: When the charging and discharging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power increase value of each connected device; When the charging and discharging power of a vehicle with a V2G charger is greater than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power reduction value of each connected device.

[0033] In addition, the preset scheduling strategy involved in the present application can be any feasible existing strategy.

[0034] The process of obtaining the preset scheduling strategy can be: The present application obtains a preset scheduling strategy through a preset interface; wherein the preset scheduling strategy includes a priority scheduling strategy, and the priority scheduling strategy includes the priority of each connected device.

[0035] The priority scheduling strategy can be specifically: When the charging power of a vehicle with a V2G charger is less than the adjustment target value, the charging power of the connected devices that the owner agrees to participate in charging is adjusted to the maximum allowed charging power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices whose owners agree to participate in the discharge is adjusted to the maximum allowable discharge power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0; When the charging power of a vehicle with a V2G charger is greater than the adjustment target value, the charging power of the connected devices for which the owner agrees to participate in charging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices for which the owner's willingness to participate in the discharge is agreed will be adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0.

[0036] As an example 2, the connected equipment includes a V2G charger and a distributed energy storage component. It can be understood by those skilled in the art that under the above architecture, in the electrical circuit, the V2G charger and the energy storage system are connected together on the low-voltage side, and have the conditions for energy interaction; in real-time regulation, the collection and feedback of real-time information and the customized control protocol realize the digitization of the V2G charger and the energy storage system in energy interaction. Through the appropriate control strategy of the local control software, various working conditions of local control can be realized when responding to grid dispatch; thereby reducing the computing pressure and communication pressure of the remote dispatch platform, while improving the real-time and stability of local control, and reducing the electricity cost of charging services to a certain extent.

[0037] This step can be specifically as follows: Obtain the operating status of distributed energy storage components; When the operating conditions are not suitable for discharge: When the charging power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power increase value of each connected device; when the discharge power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power increase value of the V2G charger in the connected device.

[0038] When the operating conditions are ready for discharge: When the charging power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power reduction value of each connected device; when the discharge power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time discharge power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power reduction value of the V2G charger in the connected device.

[0039] Based on the above description, those skilled in the art can understand that in the above basic architecture, this application can avoid the scheduling calculation pressure and communication pressure caused by individual random changes to a certain extent by introducing the local controller of the power supply point / charging station, thereby ensuring the accuracy and real-time performance of the control process. However, when a large number of vehicles participating in the V2G control plan withdraw, the above power management architecture may not be able to complete the grid scheduling indicators within the control range allowed by the vehicle, which may lead to control failure; grid scheduling can ensure the stable operation of the grid through the guarantee of distributed energy storage components.

[0040] In addition, this application Figure 2 An autonomous V2G charging station power management system is provided in the embodiment of the present application. Figure 2 As shown, the system provided in the embodiment of the present application mainly includes: Establishing module 210, used to establish a connection relationship between the V2G charger 230 corresponding to the current power source point and the local controller 220; establishing a connection relationship between the local controller 220 and the power grid dispatching platform 240; The local controller 220 is used to obtain the vehicle information corresponding to the V2G charger 230, upload the vehicle information to the power grid dispatching platform 240, and receive the control instructions issued by the power grid dispatching platform 240; wherein the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging.

[0041] It is also used to adjust the charging and discharging power of the vehicle corresponding to the V2G charger 230 to the adjustment target value corresponding to the control instruction.

[0042] When the charging and discharging power of the vehicle with the V2G charger 230 does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the regulation instruction, the local controller 220 is also used to regulate the charging and discharging power of other connected devices so that the actual load power of the power source corresponding to the current power source point is equal to the power limit value; wherein the connected devices include the V2G charger 230 or the V2G charger 230 and the distributed energy storage component.

[0043] When the connected device only includes the V2G charger 230, the local controller 220 includes a first control component, which is used for the local controller 220 to obtain the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determine the allocated charging and discharging power increase value of each connected device when the charging and discharging power of the vehicle with the V2G charger 230 is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction; when the charging and discharging power of the vehicle with the V2G charger 230 is greater than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller 220 obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power reduction value of each connected device.

[0044] The local controller 220 includes a policy acquisition component for acquiring a preset scheduling policy through a preset interface; wherein the preset scheduling policy includes a priority scheduling policy, and the priority scheduling policy includes the priority of each connected device.

[0045] The priority scheduling strategies include: When the charging power of the vehicle with the V2G charger 230 is less than the adjustment target value, the charging power of the connected device that the owner agrees to participate in charging is adjusted to the maximum allowed charging power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; when the discharge power of the vehicle with the V2G charger 230 is less than the adjustment target value, the discharge power of the connected device that the owner agrees to participate in discharging is adjusted to the maximum allowed discharge power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; when the charging power of the vehicle with the V2G charger 230 is greater than the adjustment target value, the charging power of the connected device that the owner agrees to participate in charging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; when the discharge power of the vehicle with the V2G charger 230 is less than the adjustment target value, the discharge power of the connected device that the owner agrees to participate in discharging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0.

[0046] When the connection device includes a V2G charger 230 and a distributed energy storage component, the local controller 220 includes a second control component for obtaining the operation status of the distributed energy storage component; when the operation status is that the discharge condition is not met; when there is a vehicle charging power of the V2G charger 230 that is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller 220 obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger 230 in the connection device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power increase value of each connection device; when there is a vehicle discharge power of the V2G charger 230 that is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller 220 obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger 230 in the connection device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power increase value of the V2G charger 230 in the connection device; When the operating conditions are ready for discharge: When the charging power of a vehicle with a V2G charger 230 is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller 220 obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger 230 in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power reduction value of each connected device; when the discharge power of a vehicle with a V2G charger 230 is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller 220 obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger 230 in the connected device, the real-time discharge power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power reduction value of the V2G charger 230 in the connected device.

[0047] The above is a method embodiment of the present application. Based on the same inventive concept, the present application embodiment also provides an autonomous V2G charging station power management device. Figure 3 As shown, the device includes: a processor; and a memory, on which executable codes are stored. When the executable codes are executed, the processor executes an autonomous V2G charging station power management method as described in the above embodiment.

[0048] Specifically, the server side establishes a connection relationship between the V2G charger corresponding to the current power source point and the local controller; establishes a connection relationship between the local controller and the power grid dispatching platform; obtains the vehicle information corresponding to the V2G charger through the local controller, uploads the vehicle information to the power grid dispatching platform, and receives the control instructions issued by the power grid dispatching platform; wherein the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging; adjusts the charging and discharging power of the vehicle corresponding to the V2G charger to the adjustment target value corresponding to the control instruction through the local controller; when the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value; wherein the connected devices include the V2G charger or the V2G charger and the distributed energy storage component.

[0049] In addition, an embodiment of the present application further provides a non-volatile computer storage medium on which executable instructions are stored. When the executable instructions are executed, an autonomous V2G charging station power management method as described above is implemented.

[0050] So far, the technical solutions of the present disclosure have been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the present disclosure is not limited to these specific embodiments. Without departing from the technical principles of the present disclosure, those skilled in the art can split and combine the technical solutions in the above-mentioned various embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the present disclosure will fall within the protection scope of the present disclosure.

Claims

1. An autonomous V2G charging station power management method, characterized in that: The method comprises: Establish a connection relationship between the V2G charger corresponding to the current power source point and the local controller; Establish the connection between the local controller and the power grid dispatching platform; The local controller obtains the vehicle information corresponding to the V2G charger, uploads the vehicle information to the power grid dispatching platform, and receives the control instructions issued by the power grid dispatching platform; the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging; The charging and discharging power of the V2G charger corresponding to the vehicle is adjusted to the adjustment target value corresponding to the control command through the local controller; When the charging and discharging power of a vehicle with a V2G charger does not reach the adjusted target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value; wherein the connected devices include a V2G charger or a V2G charger and a distributed energy storage component.

2. The autonomous V2G charging station power management method according to claim 1, characterized in that: When the connected equipment only includes the V2G charger, When the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value, including: When the charging and discharging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power increase value of each connected device; When the charging and discharging power of a vehicle with a V2G charger is greater than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power reduction value of each connected device.

3. The autonomous V2G charging station power management method according to claim 2, characterized in that: Before the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power increase value of each connected device, the method further includes: Obtaining a preset scheduling strategy through a preset interface; wherein the preset scheduling strategy includes a priority scheduling strategy, and the priority scheduling strategy includes the priority of each connected device; The priority scheduling strategies include: When the charging power of a vehicle with a V2G charger is less than the adjustment target value, the charging power of the connected devices that the owner agrees to participate in charging is adjusted to the maximum allowed charging power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices whose owners agree to participate in the discharge is adjusted to the maximum allowable discharge power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0; When the charging power of a vehicle with a V2G charger is greater than the adjustment target value, the charging power of the connected devices for which the owner agrees to participate in charging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices for which the owner's willingness to participate in the discharge is agreed will be adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0.

4. The autonomous V2G charging station power management method according to claim 1, characterized in that: When the connected devices include V2G chargers and distributed energy storage components, When the charging and discharging power of the vehicle with the V2G charger does not reach the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller adjusts the charging and discharging power of other connected devices to make the actual load power of the power source corresponding to the current power source point equal to the power limit value, specifically including: Obtain the operating status of distributed energy storage components; When the operating conditions are such that the discharge conditions are not met; When the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power increase value of each connected device; When the discharge power of the vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the increased discharge power value allocated to the V2G charger in the connected device; When the operating conditions are such that discharge conditions are met; When the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power reduction value of each connected device; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time discharge power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power reduction value of the V2G charger in the connected device.

5. An autonomous V2G charging station power management system, characterized in that: The system comprises: Establish a module for establishing a connection relationship between the V2G charger corresponding to the current power source point and the local controller; establish a connection relationship between the local controller and the power grid dispatching platform; The local controller is used to obtain the vehicle information corresponding to the V2G charger, upload the vehicle information to the power grid dispatching platform, and receive the control instructions issued by the power grid dispatching platform; wherein the vehicle information at least includes the real-time charging and discharging power, the time period of participation, the maximum allowed charging and discharging power, and the owner's willingness to participate in charging and discharging; It is also used to adjust the charging and discharging power of the V2G charger corresponding to the vehicle to the adjustment target value corresponding to the control instruction; When the charging and discharging power of a vehicle with a V2G charger does not reach the adjusted target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller is also used to adjust the charging and discharging power of other connected devices so that the actual load power of the power source corresponding to the current power source point is equal to the power limit value; wherein the connected devices include a V2G charger or a V2G charger and a distributed energy storage component.

6. The autonomous V2G charging station power management system according to claim 5, characterized in that: When the connection device only includes a V2G charger, the local controller includes a first regulating component, When the charging and discharging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power increase value of each connected device; When the charging and discharging power of a vehicle with a V2G charger is greater than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the connected device and the preset scheduling strategy, and then determines the allocated charging and discharging power reduction value of each connected device.

7. The autonomous V2G charging station power management system according to claim 6, characterized in that: The local controller includes a policy acquisition component, Used to obtain a preset scheduling strategy through a preset interface; wherein the preset scheduling strategy includes a priority scheduling strategy, and the priority scheduling strategy includes the priority of each connected device; The priority scheduling strategies include: When the charging power of a vehicle with a V2G charger is less than the adjustment target value, the charging power of the connected devices that the owner agrees to participate in charging is adjusted to the maximum allowed charging power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices whose owners agree to participate in the discharge is adjusted to the maximum allowable discharge power according to the preset increase amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0; When the charging power of a vehicle with a V2G charger is greater than the adjustment target value, the charging power of the connected devices for which the owner agrees to participate in charging is adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power source and the power limit value is 0; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value, the discharge power of the connected devices for which the owner's willingness to participate in the discharge is agreed will be adjusted to 0 according to the preset reduction amplitude value according to the priority, until the difference between the actual load power of the power supply and the power limit value is 0.

8. The autonomous V2G charging station power management system according to claim 5, characterized in that: When the connected device includes a V2G charger and a distributed energy storage component, the local controller includes a second regulating component. Used to obtain the operating status of distributed energy storage components; When the operating conditions are such that the discharge conditions are not met; When the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power increase value of each connected device; When the discharge power of the vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the increased discharge power value allocated to the V2G charger in the connected device; When the operating conditions are such that discharge conditions are met; When the charging power of the vehicle with the V2G charger is less than the adjustment target value and the actual load power of the power source is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power source and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time charging power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated charging power reduction value of each connected device; When the discharge power of a vehicle with a V2G charger is less than the adjustment target value and the actual load power of the power supply is greater than the power limit value corresponding to the control instruction, the local controller obtains the difference between the actual load power of the power supply and the power limit value, the vehicle information of the V2G charger in the connected device, the real-time discharge power of the distributed energy storage component and the preset scheduling strategy, and then determines the allocated discharge power reduction value of the V2G charger in the connected device.

9. An autonomous V2G charging station power management device, characterized in that: The device comprises: processor; and a memory having executable codes stored thereon, which, when executed, enable the processor to execute the autonomous V2G charging station power management method as described in any one of claims 1 to 4.

10. A non-volatile computer storage medium, characterized in that: Computer instructions are stored thereon, and when the computer instructions are executed, the method for managing power supply of an autonomous V2G charging station as described in any one of claims 1 to 4 is implemented.

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