Electric vehicle grid-connected operation and control inspection test system and method

Abstract

The invention provides an electric vehicle grid-connected operation and control inspection test system and method, and belongs to the field of electric vehicle inspection, and the system comprises a power grid simulation module which generates power grid simulation data through simulating a power grid with a dynamic characteristic; the electric vehicle simulation module is used for simulating the battery capacity and the charging efficiency of the electric vehicle and the control logic for charging the electric vehicle and generating electric vehicle simulation data; the charging pile simulation module simulates a charging pile and generates charging pile simulation data; the monitoring and data acquisition module takes the received power grid simulation data, electric vehicle simulation data and charging pile simulation data as operation data; and the checking and testing module is used for loading a grid-connected control algorithm according to the operation data and carrying out checking and testing on grid-connected operation and control of the electric vehicle. The electric vehicle grid-connected operation and control inspection test system is constructed, the electric vehicle test and test system is improved, and the progress of the electric vehicle and power grid interaction technology is promoted.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicle inspection, and particularly relates to an inspection and test system and method for the grid-connected operation and control of electric vehicles. Background Art

[0002] As a controllable load resource, an electric vehicle can utilize the remaining energy demand to respond to the fluctuations of renewable energy and the operation requirements of the energy system, which is an important part of its regulation flexibility;

[0003] Designing an inspection and test system for the grid-connected operation and control of electric vehicles usually involves multiple aspects such as the interaction technology between electric vehicles and the grid, energy management, communication protocols, and safety control. Such systems are of great significance for promoting the development of the electric vehicle industry and improving the stability and efficiency of the power grid.

[0004] In the prior art, there is a lack of an inspection and test system for the grid-connected operation and control of electric vehicles to inspect and test electric vehicles, which restricts the development and application of the interaction technology between electric vehicles and the grid. Summary of the Invention

[0005] To overcome the deficiencies of the above prior art, in a first aspect, the present invention proposes an inspection and test system for the grid-connected operation and control of electric vehicles, including: a grid simulation module, an electric vehicle simulation module, a charging pile simulation module, a monitoring and data acquisition module, and an inspection and test module that are communicatively connected;

[0006] The grid simulation module is used to generate grid simulation data by simulating a grid with dynamic characteristics and send the grid simulation data to the monitoring and data acquisition module;

[0007] The electric vehicle simulation module is used to simulate the battery capacity, charging efficiency of an electric vehicle, and the control logic for charging the electric vehicle, generate electric vehicle simulation data, and send the electric vehicle simulation data to the monitoring and data acquisition module;

[0008] The charging pile simulation module is used to simulate a charging pile, generate charging pile simulation data, and send the charging pile simulation data to the monitoring and data acquisition module;

[0009] The monitoring and data acquisition module is used to send the received grid simulation data, electric vehicle simulation data, and charging pile simulation data as operation data to the inspection and test module;

[0010] The inspection and test module is used to load a grid-connected control algorithm according to the operation data and conduct inspection and test on the grid-connected operation and control of the electric vehicle.

[0011] Preferably, the inspection and test module is specifically configured to load the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, perform inspection and test on the grid-connected operation and control of the electric vehicle, and verify the stability and response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

[0012] Preferably, the system further includes: a grid dispatching system, an electric vehicle load aggregation system, an electric vehicle charging service platform, and a charge and discharge device, which are communicatively connected to the monitoring and data acquisition module;

[0013] The electric vehicle load aggregation system is configured to obtain the grid simulation data; generate the grid dispatching demand of the electric vehicle based on the grid simulation data and send it to the grid dispatching system; generate a charging pile-level regulation instruction based on the grid dispatching demand and send it to the charge and discharge device;

[0014] The grid dispatching system is configured to respond to the grid dispatching demand of the electric vehicle; generate a dispatching instruction based on the grid dispatching demand and send it to the electric vehicle charging service platform;

[0015] The electric vehicle charging service platform is configured to respond to the dispatching instruction; form the power dispatching of the electric vehicle based on the dispatching instruction and send it to the charging pile;

[0016] The charge and discharge device is configured to respond to the charging pile-level regulation instruction; control the charging pile according to the charging pile-level regulation instruction, and perform charge and discharge regulation on the electric vehicle according to the power dispatching of the electric vehicle.

[0017] Preferably, the inspection and test module includes: a general inspection sub-module, a function inspection sub-module, and a performance test sub-module;

[0018] The general inspection sub-module is configured to load the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, and perform inspection and test on the grid-connected operation and control of the electric vehicle;

[0019] The function inspection sub-module is configured to verify the stability of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm;

[0020] The performance test sub-module is configured to verify the response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

[0021] Preferably, the general inspection sub-module includes: an appearance test unit, a communication test unit, an access control test unit, an access validity test unit, and an access automatic update request test unit; the appearance test unit is communicatively connected to the charging and discharging device, the communication test unit is communicatively connected to the power grid simulation module, the access control test unit is communicatively connected to the inspection and test module, and the access control test unit, the access validity test unit, and the access automatic update request test unit are communicatively connected;

[0022] The appearance test unit is used to inspect the appearance of the charging and discharging device during the inspection and test of the grid-connected operation and control of the electric vehicle;

[0023] The communication test unit is used to test the communication function between the electric vehicle simulation module and the power grid simulation module during the inspection and test of the grid-connected operation and control of the electric vehicle;

[0024] The access control test unit is used to set permissions for the test process of the inspection and test module during the inspection and test of the grid-connected operation and control of the electric vehicle, perform identity verification and authorized grid connection of the electric vehicle through the permissions, set the validity period of the permissions and send it to the access validity test unit, and set the automatic update request of the permissions and send it to the access automatic update request test unit;

[0025] The access validity test unit is used to control the inability to access between the electric vehicle charging service platform and the electric vehicle load aggregation system when the validity period of the permissions is exceeded based on the validity period of the permissions;

[0026] The access automatic update request test unit is used to test the automatic update request of the permissions.

[0027] Preferably, the function inspection sub-module includes: a charging and discharging adjustable function test unit, a metering function test unit, an instruction consistency test unit, an aggregated acquisition data consistency test unit, and a charging and discharging device instruction response deviation test unit;

[0028] The charging and discharging adjustable function test unit is used to verify the accuracy of the charging and discharging data of the charging and discharging device based on the bidirectional charging and discharging mode control algorithm and / or the constant power charging and discharging control algorithm, generate verification data and send it to the metering function test unit, the instruction consistency test unit, and the aggregated acquisition data consistency test unit;

[0029] The metering function test unit is used to verify the accuracy, timeliness, and precision of the charging and discharging adjustment of the charging and discharging device based on the verification data, generate a verification result and send it to the charging and discharging device instruction response deviation test unit;

[0030] The instruction consistency test unit is configured to check whether there are errors and / or delays in the process of sending the scheduling instructions based on the verification data;

[0031] The aggregated acquisition data consistency test unit is configured to verify whether the grid simulation data, the electric vehicle simulation data, and the charging pile simulation data are consistent with the verification data;

[0032] The charge and discharge device instruction response deviation test unit is configured to determine the response speed and response accuracy of the charge and discharge device to the charging pile-level control instruction based on the verification result.

[0033] Preferably, the performance test sub-module includes: a charge and discharge device power response delay test unit, a charge and discharge device regulation capacity test unit, a charge and discharge device regulation rate test unit, and a charge and discharge device regulation accuracy test unit;

[0034] The charge and discharge device power response delay test unit is configured to obtain the response time required for the charge and discharge device to respond to the charging pile-level control instruction based on the bidirectional charge and discharge mode control algorithm and send it to the charge and discharge device regulation rate test unit;

[0035] The charge and discharge device regulation capacity test unit is configured to test the maximum capacity adjustment range of electric energy reached by the charge and discharge device, the electric vehicle charging service platform, and the electric vehicle load aggregation system under ideal conditions based on the constant power charge and discharge control algorithm, obtain the test result, and send it to the charge and discharge device regulation accuracy test unit;

[0036] The charge and discharge device regulation rate test unit is configured to check the response speed of the charging pile when performing charge and discharge regulation based on the charging pile-level control instruction based on the response time;

[0037] The charge and discharge device regulation accuracy test unit is configured to check the availability of the electric vehicle charging service platform in responding to the scheduling instruction based on the test result.

[0038] Preferably, the electric vehicle simulation module includes: a power battery simulation sub-module, a vehicle controller simulation sub-module, a communication and information interaction simulation sub-module, and an environment and road condition simulation sub-module;

[0039] The power battery simulation sub-module is configured to simulate the battery capacity and charging efficiency of the electric vehicle and send them to the communication and information interaction simulation sub-module;

[0040] The vehicle controller simulation sub-module is used to simulate the control logic and communication interface for charging an electric vehicle and send them to the communication and information interaction simulation sub-module; the communication interface includes: a simulation interface that provides a communication protocol for the interaction between the electric vehicle and external devices.

[0041] The environment and road condition simulation sub-module is used to test the adaptability of the performance of an electric vehicle to the environment and driving conditions, simulate the impact of the environment on the battery and motor of the electric vehicle, obtain test simulation results and send them to the communication and information interaction simulation sub-module.

[0042] The communication and information interaction simulation sub-module is used to simulate the process of interaction between the electric vehicle and the external device based on the battery capacity, the charging efficiency, the control logic, the communication interface, and the test simulation results, simulate the two-way interaction information between the electric vehicle and the power grid, and generate electric vehicle simulation data; the two-way interaction information between the electric vehicle and the power grid includes: power scheduling and charging time optimization.

[0043] Preferably, the electric vehicle load aggregation system includes: a central control and scheduling module, a data collection and analysis module, a communication and interface module, an optimization and load distribution module, and an edge computing module; the central control and scheduling module, the data collection and analysis module, the optimization and load distribution module, and the edge computing module are connected to the communication and interface module.

[0044] The data collection and analysis module is used to obtain the power grid simulation data, and use big data analysis tools to analyze the power grid simulation data, generate the power grid scheduling requirements of the electric vehicle and send them to the optimization and load distribution module.

[0045] The optimization and load distribution module is used to collect the power grid scheduling requirements of the electric vehicle and the state of the electric vehicle, and generate a load distribution strategy according to the power grid scheduling requirements of the electric vehicle and the state of the electric vehicle and send it to the edge computing module.

[0046] The edge computing module is used to generate a charging pile-level calculation task according to the load distribution strategy and send it to the central control and scheduling module.

[0047] The central control and scheduling module is used to adopt a distributed computing architecture and a scheduling algorithm to process the charging pile-level calculation task to obtain a processing result; based on the processing result, generate a charging pile-level control instruction and send it to the charging and discharging device.

[0048] In a second aspect, the present invention application also proposes an inspection and test method for the grid-connected operation and control of an electric vehicle, including:

[0049] Using the power grid simulation module of the described inspection and testing system, by simulating a power grid with dynamic characteristics, power grid simulation data is generated;

[0050] Using the electric vehicle simulation module of the described inspection and testing system, simulating the battery capacity, charging efficiency of an electric vehicle, and the control logic for charging the electric vehicle, electric vehicle simulation data is generated;

[0051] Using the charging pile simulation module of the described inspection and testing system, simulating a charging pile, charging pile simulation data is generated;

[0052] Using the monitoring and data acquisition module of the described inspection and testing system, taking the power grid simulation data, the electric vehicle simulation data, and the charging pile simulation data as operation data;

[0053] Using the inspection and testing module of the described inspection and testing system, according to the operation data, loading a grid connection control algorithm, and conducting inspection and testing on the grid connection operation and control of the electric vehicle.

[0054] In a third aspect, the present invention application also proposes an electronic device, including: at least one processor and a memory; the memory and the processor are connected through a bus;

[0055] The memory is used to store one or more programs;

[0056] When the one or more programs are executed by the at least one processor, the described method for inspecting and testing the grid connection operation and control of an electric vehicle is implemented.

[0057] In a fourth aspect, the present invention application also proposes a readable storage medium, on which an execution program is stored, and when the execution program is executed, the described method for inspecting and testing the grid connection operation and control of an electric vehicle is implemented.

[0058] Compared with the closest prior art, the beneficial effects of the present invention application are as follows:

[0059] An inspection and testing system and method for grid-connected operation and control of electric vehicles according to the present invention includes: a grid simulation module, an electric vehicle simulation module, a charging pile simulation module, a monitoring and data acquisition module, and an inspection and testing module that are communicatively connected; the grid simulation module is used to generate grid simulation data by simulating a grid with dynamic characteristics and send the grid simulation data to the monitoring and data acquisition module; the electric vehicle simulation module is used to simulate the battery capacity, charging efficiency of an electric vehicle, and the control logic for charging the electric vehicle, generate electric vehicle simulation data, and send the electric vehicle simulation data to the monitoring and data acquisition module; the charging pile simulation module is used to simulate a charging pile, generate charging pile simulation data, and send the charging pile simulation data to the monitoring and data acquisition module; the monitoring and data acquisition module is used to send the received grid simulation data, electric vehicle simulation data, and charging pile simulation data as operation data to the inspection and testing module; the inspection and testing module is used to load a grid-connected control algorithm based on the operation data and perform inspection and testing on the grid-connected operation and control of the electric vehicle. An inspection and testing system for grid-connected operation and control of electric vehicles is constructed, which improves the test and testing system for electric vehicles, promotes the progress of the interaction technology between electric vehicles and the grid, and is crucial for the development of the electric vehicle industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 The architecture of an inspection and testing system for grid-connected operation and control of electric vehicles provided by the present application Figure 1 ;

[0061] Figure 2 The architecture of an inspection and testing system for grid-connected operation and control of electric vehicles provided by the present application Figure 2 ;

[0062] Figure 3 The flowchart of a method for inspecting and testing grid-connected operation and control of electric vehicles provided by the present application;

[0063] Figure 4 The operation schematic diagram of an electronic device provided by the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0064] The following further details the specific embodiments of the present application with reference to the accompanying drawings.

[0065] Embodiment 1:

[0066] As Figure 1 shown, the present application proposes an inspection and testing system for grid-connected operation and control of electric vehicles, including: a grid simulation module, an electric vehicle simulation module, a charging pile simulation module, a monitoring and data acquisition module, and an inspection and testing module that are communicatively connected;

[0067] The power grid simulation module is used to generate power grid simulation data by simulating a power grid with dynamic characteristics, and send the power grid simulation data to the monitoring and data acquisition module;

[0068] The electric vehicle simulation module is used to simulate the battery capacity, charging efficiency of an electric vehicle, and the control logic for charging the electric vehicle, generate electric vehicle simulation data, and send the electric vehicle simulation data to the monitoring and data acquisition module;

[0069] The charging pile simulation module is used to simulate a charging pile, generate charging pile simulation data, and send the charging pile simulation data to the monitoring and data acquisition module;

[0070] The monitoring and data acquisition module is used to send the received power grid simulation data, electric vehicle simulation data, and charging pile simulation data as operation data to the inspection and test module;

[0071] The inspection and test module is used to load a grid connection control algorithm according to the operation data, and conduct inspection and testing on the grid connection operation and control of the electric vehicle.

[0072] In the above, the power grid simulation module can be a power electronic device, and the power electronic device simulates the dynamic characteristics of a real power grid. The dynamic characteristics include power grid fluctuations, frequency changes, and harmonic interference; the charging pile simulation module can simulate charging piles with different power levels, including AC slow charging and DC fast charging piles; the monitoring and data acquisition module can collect operation data in real time. The operation data can include inspection and test data, and the operation data can include relevant parameters such as voltage, current, power, and frequency; the inspection and test module can check and test the loaded grid connection control algorithm. The algorithms include: V2G (Vehicle-to-Grid, the technology of an electric vehicle feeding power to the power grid) control algorithm, constant power charge and discharge control algorithm, etc., and can verify the stability and response performance of the algorithms.

[0073] Further, the inspection and test module is specifically used to load a bidirectional charge and discharge mode control algorithm and / or a constant power charge and discharge control algorithm, conduct inspection and testing on the grid connection operation and control of the electric vehicle, and verify the stability and response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

[0074] Further, the system further includes: a power grid dispatching system, an electric vehicle load aggregation system, an electric vehicle charging service platform, and charge and discharge equipment that are communicatively connected to the monitoring and data acquisition module;

[0075] The electric vehicle load aggregation system is used to obtain the grid simulation data; based on the grid simulation data, generate the grid dispatching requirements of electric vehicles and send them to the grid dispatching system; based on the grid dispatching requirements, generate charging pile-level control instructions and send them to the charging and discharging equipment;

[0076] The grid dispatching system is used to respond to the grid dispatching requirements of electric vehicles; based on the grid dispatching requirements, generate dispatching instructions and send them to the electric vehicle charging service platform;

[0077] The electric vehicle charging service platform is used to respond to the dispatching instructions; based on the dispatching instructions, form the power dispatching of electric vehicles and send it to the charging piles;

[0078] The charging and discharging equipment is used to respond to the charging pile-level control instructions; according to the charging pile-level control instructions, control the charging piles, and adjust the charging and discharging of electric vehicles according to the power dispatching of electric vehicles.

[0079] In the above, the system may further include: a grid connection interface module; the grid connection interface module is communicatively connected to the grid simulation module, the electric vehicle simulation module, the charging pile simulation module, the monitoring and data acquisition module, the grid dispatching system, the electric vehicle load aggregation system, the electric vehicle charging service platform, and the charging and discharging equipment; to achieve energy and information interaction; the grid connection interface module can adopt a standard communication protocol; among them, examples of the communication protocol can be CAN (Controller Area Network), Ethernet, etc.;

[0080] In the above, the grid dispatching system includes but is not limited to a demand response platform, a load control system, a distribution network cloud master station, and a new load management system. The electric vehicle load aggregation system can realize the aggregation of the discrete loads of electric vehicle charging and swapping through advanced information communication technology and software systems, and conduct two-way information interaction with the grid dispatching system purposefully and respond to the grid dispatching requirements; at the same time, it has the ability to coordinate and optimize the control between loads, and supports load aggregators to achieve resource access, dispatching and grid connection, operation monitoring, automatic power control, metering and settlement, and statistical analysis. It adopts a modular design, which is easy to expand and maintain.

[0081] In the above, the load control system: is used for electric vehicles to access the grid through charging piles and actively respond to the grid dispatching requirements, and participate in the grid dispatching operation control, including charging power adjustment, chargeable time shift, etc.

[0082] As described above, the load aggregator needs to have electricity users with adjustable capabilities and be an independent organization that provides services to the market operation agency or purchaser. It can not only provide small and medium-sized loads with the opportunity to participate in grid regulation, but also fully explore load resources through professional technical means and provide service products required by demand response, auxiliary services, spot markets, etc.

[0083] As described above, automatic power control is a closed-loop control process in which the grid dispatching system issues real-time adjustment instructions or plans to the electric vehicle load aggregation system through information communication and automatic control technologies. The electric vehicle load aggregation system decomposes the adjustment instructions and issues them to the charging and discharging equipment through the electric vehicle charging service platform to complete the charging and discharging of the charging piles and the automatic power adjustment response of the charging piles, so as to meet the real-time safety balance of the grid and the frequency regulation within the deviation range.

[0084] Furthermore, as Figure 2 shown, the inspection and test module includes: a general inspection sub-module, a function inspection sub-module, and a performance test sub-module;

[0085] The general inspection sub-module is used to load the bidirectional charging and discharging mode control algorithm and / or the constant power charging and discharging control algorithm to conduct inspection and test on the grid-connected operation and control of electric vehicles;

[0086] The function inspection sub-module is used to verify the stability of the bidirectional charging and discharging mode control algorithm and / or the constant power charging and discharging control algorithm;

[0087] The performance test sub-module is used to verify the response performance of the bidirectional charging and discharging mode control algorithm and / or the constant power charging and discharging control algorithm.

[0088] Furthermore, the general inspection sub-module includes: an appearance test unit, a communication test unit, a permission control test unit, a permission validity test unit, and a permission automatic update request test unit; the appearance test unit is communicatively connected to the charging and discharging equipment, the communication test unit is communicatively connected to the grid simulation module, the permission control test unit is communicatively connected to the inspection and test module, and the permission control test unit, the permission validity test unit, and the permission automatic update request test unit are communicatively connected;

[0089] The appearance test unit is used to check the appearance of the charging and discharging equipment during the inspection and test of the grid-connected operation and control of electric vehicles;

[0090] The communication test unit is used to test the communication function between the electric vehicle simulation module and the grid simulation module during the inspection and test of the grid-connected operation and control of electric vehicles;

[0091] The permission control test unit is used to set permissions for the test process of the inspection and test module during the inspection and test of the grid-connected operation and control of electric vehicles, authenticate and authorize the grid connection of electric vehicles through the permissions, set the validity period of the permissions and send it to the permission time limit test unit, and set the automatic update request of the permissions and send it to the permission automatic update request test unit;

[0092] The permission time limit test unit is used to control the inability to access between the electric vehicle charging service platform and the electric vehicle load aggregation system when the validity period of the permission is exceeded based on the validity period of the permission;

[0093] The permission automatic update request test unit is used to test the automatic update request of the permission.

[0094] As mentioned above, the appearance test unit can also be used to comprehensively inspect the appearance of electric vehicle grid-connected equipment, including the overall structure of the equipment, the integrity of the interfaces, and the clarity of the markings. Through appearance inspection, it is used to preliminarily judge whether the equipment meets the basic production and use standards, ensuring its physical integrity and compliance. The off-board charger in the appearance test unit corresponds to the requirements of 5.2.1 in the recommended standard NB / T 33008.1-2018 of the National Energy Administration, and the AC charging pile corresponds to the requirements of 5.2.1 in the recommended standard NB / T 33008.2-2018 of the National Energy Administration;

[0095] As mentioned above, the communication test unit can also be used to test the communication function between electric vehicles and the grid, and generate charging pile-level control commands using the electric vehicle load aggregation system; it can start timing from the moment of the charging pile-level control command, and it should reach the electric vehicle charging service platform within 500 ms. Starting from the moment when the electric vehicle charging service platform receives the charging pile-level control command within the specified time and finishes processing, it should forward it to the charging pile or reply with the receiving result of the charging pile-level control command within 200 ms;

[0096] As mentioned above, the permission control test unit is also used to test the permission management mechanism in the system, authenticate and authorize through the use of tokens, ensuring that only authorized electric vehicles can access the grid and perform energy exchange; permissions include: unallocated tokens or incorrectly allocated tokens between the electric vehicle load aggregation system and the electric vehicle charging service platform, business requests of clients rejected by the accessed server, correctly allocated tokens between the electric vehicle load aggregation system and the electric vehicle charging service platform, and the server should be able to normally respond to the business requests of the clients.

[0097] The permission time limit test unit verifies the validity period of the token to ensure the dynamic security of the system and the real-time nature of the data. When the validity period is exceeded, the electric vehicle charging service platform and the electric vehicle load aggregation system shall be inaccessible and no business data shall be sent.

[0098] The above-mentioned automatic permission update request test unit is used to test the automatic update function of the token in the electric vehicle grid-connected system; the correct token is allocated between the electric vehicle load aggregation system and the electric vehicle charging service platform. After the existence time is ≥2 hours, the token should become invalid, that is, it enters the unallocated token or token error state, and the electric vehicle charging service platform and the electric vehicle load aggregation system should be inaccessible and no business data should be sent. The automatic permission update request test unit is used when the token between the electric vehicle load aggregation system and the electric vehicle charging service platform becomes invalid, and the client should automatically complete the token update request before initiating a business request.

[0099] The general inspection submodule may also include: a type test report inspection unit, which is used to verify whether the design, performance and quality of the electric vehicle grid-connected operation and control system meet the requirements of relevant standards and specifications.

[0100] Further, the functional inspection submodule includes: a charge and discharge adjustable function test unit, a metering function test unit, an instruction consistency test unit, an aggregated collection data consistency test unit, and a charge and discharge equipment instruction response deviation test unit;

[0101] The charge and discharge adjustable function test unit is used to verify the accuracy of the charge and discharge data of the charge and discharge device based on the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, generate verification data and send it to the metering function test unit, the instruction consistency test unit, and the aggregated collection data consistency test unit;

[0102] The metering function test unit is used to verify the accuracy, timeliness and precision of the charge and discharge regulation of the charge and discharge device based on the verification data, generate a verification result and send it to the charge and discharge device instruction response deviation test unit;

[0103] The instruction consistency test unit is used to check whether there is error and / or delay in the scheduling instruction sending process based on the verification data;

[0104] The aggregated data consistency test unit is used to check whether the power grid simulation data, the electric vehicle simulation data and the charging pile simulation data are consistent with the verification data;

[0105] The charge-discharge device instruction response deviation test unit is used to determine the response speed and response accuracy of the charge-discharge device to the charging pile-level regulation instruction based on the verification result.

[0106] Specifically, the charge-discharge adjustable function test unit is used to verify the adjustable function of the charge-discharge device. The verification is performed using the following steps:

[0107] Step a: The charge-discharge device should be in a state of being connected to an electric vehicle or a simulated load, and the charge-discharge device has normally started the charge-discharge process, and the power output is in a stable state.

[0108] Step b: The electric vehicle load aggregation system generates a charging pile-level regulation instruction, and the range of the charging pile-level regulation instruction should be within the charge-discharge power range supported by the charge-discharge device; the maximum output power supported by the charge-discharge device is:

[0109] P max = min(P 额定 , P 请求 , min(U 输出 , U 请求 ) * min(I 输出 , I 请求 ))

[0110] P 请求 = U 请求 × I 请求

[0111] Wherein, P max represents the maximum output power supported by the charge-discharge device, P 额定 represents the rated output power marked on the nameplate of the charge-discharge device, P 请求 represents the requested charge or discharge power issued by the electric vehicle or the simulated load, U 输出 represents the maximum output voltage marked on the nameplate of the charge-discharge device, U 请求 represents the requested charge or discharge voltage issued by the electric vehicle or the simulated load, I 输出 represents the maximum output current marked on the nameplate of the charge-discharge device, I 请求 represents the requested charge or discharge current issued by the electric vehicle or the simulated load.

[0112] Step c: The electric vehicle load aggregation system issues a charging pile-level regulation instruction, which can be sent to the charge-discharge device via the electric vehicle charging service platform. The charge-discharge device should change in the direction of the target value within 1 minute, and the change amplitude should not be less than 70% of the difference between the charging pile-level regulation instruction and the current output power.

[0113] The above-mentioned metering function test unit, when verifying the metering accuracy and timeliness of the charging and discharging equipment, ensures the accuracy of metering by comparing with the actual power consumption; the following steps are adopted for the test and inspection of metering:

[0114] Step A: The test and inspection operator of metering checks the corresponding type test report of the charging and discharging equipment to determine whether the selected metering device meets the national standard for electric energy metering devices and is put into use after being verified by an electric energy metering detection agency;

[0115] Step B: The metering function test unit checks the metering data collection period of the electric vehicle charging service platform, which should not be greater than 3 min (preferably 1 min). The data content includes data such as voltage, current, and power, and the metadata archiving should be completed in a timely manner. The archiving sampling period should not be greater than 15 min (preferably 1 min), and the total power consumption within the sampling period should not be greater than the total power consumption during this period.

[0116] Step C: The metering function test unit checks the period for the electric vehicle charging service platform to send data to the electric vehicle load aggregation system, which should not be greater than 5 min (preferably 1 min). The electric vehicle load aggregation system archives and samples the metadata. Check the sampling period of the electric vehicle load aggregation system, which should not be greater than 15 min (preferably 1 min), and the total power consumption within the sampling period should not be greater than the total power consumption during this period. During sampling, it is advisable to record the average power, maximum power, and minimum power within this period.

[0117] It should be noted that when conducting metering inspection tests in the laboratory, the metering function should be strictly verified. During on-site inspection tests, the electric vehicle load aggregation system can be used to collect data and the order data sent by the electric vehicle charging service platform to complete the metering function verification.

[0118] The instruction consistency test unit is also used to test the consistency of the electric vehicle load aggregation system in generating and issuing charging pile-level control instructions. By sending a series of charging pile-level control instructions and observing the vehicle's response, it is checked whether there are errors or delays in the transmission process of the charging pile-level control instructions to ensure the reliable execution of the charging pile-level control instructions; the following steps are adopted for the test and inspection of instruction consistency:

[0119] Step a1: The charging and discharging equipment should be in a state of being connected to an electric vehicle or a simulated load, and the charging and discharging equipment has normally started the charging (discharging) process, and the power output is in a stable state.

[0120] Step a2: The power grid dispatching system generates a power grid demand instruction or plan and issues it to the electric vehicle load aggregation system. The data parsed by the electric vehicle load aggregation system should be consistent with the power grid demand instruction or plan value. The power grid demand instruction or plan generated by the power grid dispatching system includes platform-level and charging and discharging equipment-level demand instructions or plans.

[0121] Step a3: When it is a charge-discharge device-level instruction or response plan, the electric vehicle load aggregation system sends the instruction or response plan to the corresponding electric vehicle charging service platform. The electric vehicle load aggregation system should only perform protocol conversion without modifying any data, and the data parsed and executed by the electric vehicle charging service platform should be consistent with the value sent by the electric vehicle load aggregation system. When it is a platform-level instruction, the electric vehicle load aggregation system should be able to correctly decompose it to each electric vehicle charging service platform, and the decomposition result should be consistent with the calculation result provided by the decomposition algorithm description.

[0122] When the electric vehicle charging service platform receives or parses and forms a charge-discharge device-level instruction or response plan, if the planned value is within the power range supported by the charge-discharge device, it should be directly sent; otherwise, it should be adjusted downwards or upwards. When adjusting downwards, the lower limit of the power supported by the charge-discharge device should be used for sending. When adjusting upwards, it can be directly sent or the upper limit of the power supported by the charge-discharge device can be used for sending.

[0123] It should be noted that during the instruction consistency laboratory test, the instruction consistency should be strictly verified. During the on-site inspection test, only steps a1 and a2 can be checked to assist in completing the test inspection of the electric vehicle load aggregation adjustment accuracy.

[0124] The said aggregation acquisition data consistency test unit can also be used to test the station fitting of the electric vehicle load aggregation system and the electric vehicle charging service platform, and whether the sum of the aggregated unit fitting measurement data and the charge-discharge device data is consistent, with an error not greater than 0.5%. Aggregation acquisition data consistency means that the electric vehicle load aggregation system and the electric vehicle charging service platform are consistent in station fitting, and the sum of the aggregated unit fitting measurement data and the charge-discharge device data. The following steps are used to perform the aggregation acquisition data consistency test inspection:

[0125] Step A1: The electric vehicle charging and swapping service platform and the electric vehicle load aggregation system fit the station power data, which should be consistent with the sum of the power data of the charge-discharge devices in the station at the same moment, and the error should not be greater than 0.5%. If the power data collected by the charge-discharge device is missing, the fitting result should be consistent with the calculation result provided by the power data fitting rule.

[0126] Step A2: The electric vehicle load aggregation system fits according to the aggregated unit power data, which should be consistent with the sum of the power data of all charge-discharge devices of the aggregated unit at the same moment, and the error should not be greater than 0.5%. If the power data collected by the charge-discharge device is missing, the fitting result should be consistent with the calculation result provided by the power data fitting rule.

[0127] The error expressions of Step A1 and Step A2 are as follows:

[0128]

[0129] Among them, err represents the error of fitting the metering data, and P 拟合 represents the fitting power data of the charging and discharging equipment within the selected range, and P i represents the collected power data or fitting power data of the i-th charging pile at the fitting moment within the selected range.

[0130] Step A3: The fitting result of the power data of the aggregation unit of the electric vehicle load aggregation system should be consistent with the sum of the fitting power data of all stations of the aggregation unit, and the error should not be greater than 0.5%.

[0131] The instruction response deviation test unit of the charging and discharging equipment is used to test the response accuracy of the charging and discharging equipment to instructions. By sending precise control instructions and measuring the actual response of the equipment, it is used to evaluate whether its deviation is within the acceptable range.

[0132] Furthermore, the performance test sub-module includes: a power response delay test unit of the charging and discharging equipment, a regulation capacity test unit of the charging and discharging equipment, a regulation rate test unit of the charging and discharging equipment, and a regulation accuracy test unit of the charging and discharging equipment;

[0133] The power response delay test unit of the charging and discharging equipment is used to obtain the response time required for the charging and discharging equipment to respond to the charging pile-level regulation instruction based on the two-way charging and discharging mode control algorithm and send it to the regulation rate test unit of the charging and discharging equipment;

[0134] The regulation capacity test unit of the charging and discharging equipment is used to test the maximum capacity regulation range of the electric energy reached by the charging and discharging equipment, the electric vehicle charging service platform, and the electric vehicle load aggregation system under ideal conditions based on the constant power charging and discharging control algorithm, and send the test result to the regulation accuracy test unit of the charging and discharging equipment;

[0135] The regulation rate test unit of the charging and discharging equipment is used to check the response speed of the charging pile for charging and discharging regulation based on the charging pile-level regulation instruction based on the response time;

[0136] The regulation accuracy test unit of the charging and discharging equipment is used to check the availability of the electric vehicle charging service platform in responding to the dispatching instruction based on the test result.

[0137] The performance test sub-module may further include: an electric vehicle load aggregation regulation accuracy unit and an electric vehicle load aggregation regulation rate unit;

[0138] The above-mentioned charge and discharge equipment power response delay test unit is also used to test the time required for the charge and discharge equipment to respond to the power grid regulation command; the charge and discharge equipment regulation capacity test unit is also used to verify the maximum regulation range that the charge and discharge equipment, the electric vehicle charging service platform, and the electric vehicle load aggregation system can achieve under ideal conditions; the charge and discharge equipment regulation rate test unit is also used to test the regulation response speed; the charge and discharge equipment regulation accuracy test unit is also used to test the availability of the charge and discharge equipment in responding to the power grid dispatching command; the electric vehicle load aggregation regulation accuracy unit is used to test the availability and reliability of the regulation function of the electric vehicle load aggregation system; the electric vehicle load aggregation regulation rate unit is used to test the regulation response speed of the aggregated resources of the electric vehicle load aggregation system.

[0139] The charge and discharge equipment power response delay test unit is used to test the time required for the charge and discharge equipment to respond to the power grid regulation command; the following steps can be adopted for execution:

[0140] Step C1: The charge and discharge equipment should be in a state of being connected to an electric vehicle or a simulated load, the charge and discharge equipment has normally started the charging or discharging process, and the power output is in a stable state;

[0141] Step C2: The electric vehicle load aggregation system generates a regulation command within the charging or discharging power range supported by the charge and discharge equipment, and issues it to the charge and discharge equipment through the electric vehicle charging service platform;

[0142] Step C3: When the charge and discharge equipment receives the regulation command, start timing. The first moment point when the response reaches more than 90% accuracy of the regulation command target value and lasts for more than 5 minutes is the end time, and the intermediate duration should not exceed 20S; the regulation response accuracy of the charge and discharge equipment can be expressed as follows:

[0143]

[0144] Δt = t1 - t0

[0145] Where, acc represents the regulation response accuracy of the charge and discharge equipment, P 实际 represents the actual output power of the charge and discharge equipment, P 调控 represents the regulation command value received by the charge and discharge equipment, that is, the regulation target value, Δt represents the regulation start time of the charge and discharge equipment, t1 represents the first moment point when the stable output power of the charge and discharge equipment is more than 90% accurate of the regulation command target value, and t0 represents the moment when the charge and discharge equipment receives the regulation command.

[0146] It should be noted that when conducting laboratory tests to verify the time required for the charge and discharge equipment to respond to grid regulation commands, the start-up time of the charge and discharge equipment regulation should be strictly verified. During on-site tests, the test can be assisted by the regulation accuracy of the electric vehicle load aggregation to complete the test, and the start-up time of the charge and discharge equipment regulation is not recorded.

[0147] When the test inspection unit for the regulation capacity of the charge and discharge equipment conducts tests to verify the maximum capacity regulation range achieved by the charge and discharge equipment, the electric vehicle charging service platform, and the electric vehicle load aggregation system under ideal conditions, the following steps are executed:

[0148] Step d1: The charge and discharge equipment should be in a state of being connected to an electric vehicle or a simulated load. The charge (discharge) process of the charge and discharge equipment has been normally started, and the power can reach the full power output state of the charge and discharge equipment. If an electric vehicle or a simulated load that can meet the maximum power demand cannot be provided, it is advisable to refer to the maximum stable output power in the type test report as the theoretical maximum load value.

[0149] Step d2: The electric vehicle load aggregation system takes 3 minutes as a cycle. It is advisable to generate or set more than 3 charge and discharge equipment-level regulation commands at 80%, 50%, 30%, 10%, 5%, 3%, 1%, 0% of the rated power respectively and in reverse order to 100% or as required by the actual situation, and send them to the charge and discharge equipment through the electric vehicle charging service platform. If it is a two-way charge and discharge equipment for electric vehicles, positive values are used for charging and negative values are used for discharging. The charge and discharge equipment-level regulation commands should be calculated and generated at 80%, 50%, 30%, 10%, 5%, 3%, 1%, 0%, 100% of the charging rated power and 5%, 10%, 30%, 50%, 80%, 100% of the discharging power respectively or set more than 3 charging and discharging equipment-level regulation commands as required by the actual situation, and it is necessary to pass through the 0 power point. During the execution, if the minimum output power supported by the charge and discharge equipment is clear, the generated charge and discharge equipment-level regulation commands should start to reverse order to the rated power of 100% when reaching the minimum power.

[0150] Without affecting the charging continuity of a single charging order, record the maximum output power and the minimum output power that the charge and discharge equipment can reach. The regulation capacity of the charge and discharge equipment is calculated as:

[0151] P 调节容量 =P 最大负荷 -P 最小负荷

[0152] Among them, P 调节容量 represents the regulation capacity of the charge and discharge equipment, P 最大负荷 represents the maximum output power that the charge and discharge equipment can reach, which can refer to the maximum stable output power value in the type test report or the measured value, P 最小负荷It represents the minimum charging power that the charging and discharging equipment can achieve, which should be the minimum stable output power value that can be achieved without affecting the continuity of a single charging order.

[0153] It should be noted that during laboratory inspection tests, the regulation capacity of the charging and discharging equipment should be strictly verified and information maintenance should be done well. During on-site inspection tests, the generation of regulation commands at the charging and discharging equipment level should preferably be not less than 30% of the rated power. The calculated data is not used as the regulation capacity data of the charging and discharging equipment and is for reference only.

[0154] The regulation rate test unit of the charging and discharging equipment is used to test the regulation response speed; the unit is kW / min. When testing the regulation response speed, the following steps are executed:

[0155] Step e1: The charging and discharging equipment should be in a state of being connected to an electric vehicle or a simulated load, and the output of the charging and discharging equipment should be in a stable state.

[0156] Step e2: When conducting a downward adjustment test, the charging and discharging equipment should reach the rated output power and the output should be in a stable state. The electric vehicle load aggregation system calculates the minimum output power of the charging and discharging equipment according to the regulation capacity data of the charging and discharging equipment, forms a regulation command at the charging and discharging equipment level, and issues it to the charging and discharging equipment through the electric vehicle charging service platform; when conducting an upward adjustment test, the electric vehicle load aggregation system calculates the minimum output power of the charging and discharging equipment as the regulation command at the charging and discharging equipment level and issues it to the charging and discharging equipment. After the charging output power is in a stable state, the electric vehicle load aggregation system takes the rated power of the charging and discharging equipment as the regulation command value and issues it to the charging and discharging equipment through the electric vehicle charging service platform.

[0157] The time when the regulation command at the charging and discharging equipment level is issued is the starting time of timing. The first moment when it is adjusted to 90% of the regulation command value power and stabilized within the accuracy limit is the end time. The regulation rate of the charging and discharging equipment is calculated according to the following formula:

[0158]

[0159] Among them, v represents the regulation rate of the charging and discharging equipment, unit: kW / min, P 最大 represents the maximum output power achieved by the charging and discharging equipment, P 最小 represents the minimum output power achieved by the charging and discharging equipment, and t represents the time difference between the start and end of timing.

[0160] It should be noted that during laboratory inspection tests for testing the regulation response speed, it is advisable to verify the regulation rate of the charging and discharging equipment. During on-site inspection tests, if the timing conditions are available, the charging (discharging) regulation rate test can be carried out, and the data is for reference only.

[0161] The charging and discharging equipment regulation accuracy test unit is also used to test the accuracy of the charging and discharging equipment during the regulation process. The accuracy test is carried out according to the following steps:

[0162] Step f1: The charging and discharging equipment should be in a state of being connected to an electric vehicle or a simulated load. The charging and discharging equipment has normally started the charging or discharging process, and the power is in a stable output state.

[0163] Step f2: The electric vehicle load aggregation system generates charging and discharging equipment-level regulation commands at 90%, 80%, 50%, and 30% of the rated power of the charging and discharging equipment respectively. The generated charging and discharging equipment-level regulation commands should be within the output range of the charging and discharging equipment, and are sent to the charging and discharging equipment through the electric vehicle charging service platform.

[0164] Step f3: The charging and discharging equipment periodically uploads its real-time power data information, which is sent to the electric vehicle load aggregation system through the electric vehicle charging service platform. The electric vehicle load aggregation system calculates the regulation accuracy of the charging and discharging equipment. The calculation process of the regulation accuracy of the discharging equipment satisfies the following formula:

[0165]

[0166] where Acc represents the regulation accuracy of the charging and discharging equipment, P i,调控 represents the set regulation command in the i-th period, P i,平均 represents the actual average operating power within the set time period in the i-th period, and n represents the total number of power data points collected within the time period.

[0167] When testing the regulation accuracy of the charging and discharging equipment, the regulation accuracy of different forms of charging and discharging equipment should meet the following requirements:

[0168] (1) The charging and discharging equipment can be a group management and group control pile. The group management and group control charging pile should be able to receive the charging power regulation command sent by the electric vehicle charging service platform or the electric vehicle load aggregation system, and can adjust the maximum charging capacity of the group management and group control pile or the maximum charging capacity of a single gun. The message content should meet the requirements of GB / T 27930-2023. During charging, when receiving a command lower than the requested power data of the electric vehicle or the simulated load, it should be adjusted to the target value smoothly within 1 minute; when the output power reaches more than 30% of the rated power, the regulation accuracy should not be less than 96%, and when the output power reaches less than 30% of the rated power, the regulation accuracy should not be less than 80%.

[0169] (2) The charging and discharging equipment can be a DC charging pile. The DC charging pile shall be able to receive the charging power adjustment instruction sent by the electric vehicle charging service platform or the electric vehicle load aggregation system. When receiving an instruction lower than the requested power data of the electric vehicle or the simulated load, it shall be adjusted to the target value in a smooth manner within 1 minute. The content of the message shall meet the requirements of the national standard GB / T 27930-2023. When the output power reaches more than 30% of the rated power, the adjustment accuracy shall not be less than 96%. When the output power reaches less than 30% of the rated power, the adjustment accuracy shall not be less than 80%.

[0170] (3) The charging and discharging equipment can be an AC charging pile. The AC charging pile shall be able to receive the orderly charging instruction sent by the electric vehicle charging service platform or the electric vehicle load aggregation system. The orderly charging instruction can be a PWM signal. Adjust the duty cycle of PWM (Pulse Width Modulation) within 1 minute. The corresponding relationship between the power and the duty cycle value and the duty cycle accuracy shall meet the requirements of the national standard GB / T 18487.1-2023.

[0171] The electric vehicle load aggregation regulation accuracy unit is also used to test the availability and reliability of the regulation function of the electric vehicle load aggregation system. The following steps are adopted during the availability and reliability test:

[0172] Step g1: The automatic power regulation function of the electric vehicle load aggregation system is in the enabled state, the electric vehicle charging (discharging) load aggregation acquisition function is normal, and the data is continuous without interruption.

[0173] Step g2: The power grid dispatching system generates a regulation instruction within the adjustable range of the electric vehicle load aggregation system and sends it to the electric vehicle load aggregation system, or directly sets a regulation instruction within the adjustable range in the electric vehicle load aggregation system.

[0174] Step g3: The electric vehicle load aggregation system decomposes the regulation instruction according to the operation status of the electric vehicle charging service platform, the charging and discharging equipment, etc., and sends it to the charging and discharging equipment through the electric vehicle charging service platform.

[0175] Based on the data collected by the electric vehicle load aggregation system, calculate the electric vehicle load aggregation regulation accuracy. The large-scale regulation accuracy at the level of 2000 piles and above shall not be less than 85%. For the aggregation scale of less than 2000 piles, it is considered that the conditions for electric vehicle load aggregation have not been formed, and this article does not apply.

[0176]

[0177] Among them, Vcc represents the power regulation accuracy of the time period, P j,目标 is the total target regulation power set for the j-th time period, P j,平均Set the actual operating average power of the total load within the time period for the j-th period. m represents the total number of power data points collected within the time period.

[0178] The electric vehicle load aggregation regulation rate unit checks the regulation response speed of the aggregated resources of the electric vehicle load aggregation system. The unit is kW / min and is executed using the following steps:

[0179] Step H1: The automatic power regulation function of the electric vehicle load aggregation system is in the enabled state, and the electric vehicle charging or discharging load aggregation collection function is normal, with continuous and uninterrupted data.

[0180] Step H2: During the downward adjustment test, the electric vehicle load aggregation system should operate in a non-regulated stable state. The power grid dispatching system generates a regulation command within the adjustable range of the electric vehicle load aggregation system and issues it, or directly sets a reasonable regulation command value in the electric vehicle load aggregation system. The target value of the regulation command should not be greater than 95% of the current operating value. During the upward adjustment test, the electric vehicle load resources aggregated by the electric vehicle load aggregation system should be in a stable state of low-power regulation operation. The power grid dispatching system generates a regulation command within the adjustable range of the electric vehicle load aggregation system and issues it, or directly sets a reasonable regulation command value in the electric vehicle load aggregation system. The regulation command value should not be lower than 80% of the upper limit of the adjustable range of the electric vehicle load aggregation system and higher than the current operating data.

[0181] Step H3: The electric vehicle load aggregation system decomposes the regulation command according to the electric vehicle charging service platform, the operating status of the charging and discharging equipment, etc., and issues it to the charging and discharging equipment through the electric vehicle charging service platform.

[0182] Based on the data collected by the electric vehicle load aggregation system, calculate the electric vehicle load aggregation regulation rate. The moment when the regulation command is issued is the starting time of timing, and the first moment when it is adjusted to 90% of the command adjustment power and stabilized within the accuracy limit is the end time. The electric vehicle load aggregation regulation rate is calculated according to the following formula:

[0183]

[0184] Among them, v represents the electric vehicle load aggregation regulation rate, and the unit is: kW / min. P 最大 represents the maximum stable output power achieved by the electric vehicle load aggregation system during the inspection test. P 最小 represents the minimum output power achieved by the electric vehicle load aggregation system during the inspection test. t represents the time difference between the start and end of timing.

[0185] It should be noted that the electric vehicle load aggregation regulation rate should preferably adopt the on-site inspection mode. Affected by the collection frequency, the calculated data is for reference only.

[0186] Furthermore, the electric vehicle simulation module includes: a power battery simulation sub-module, a vehicle controller simulation sub-module, a communication and information interaction simulation sub-module, and an environment and road condition simulation sub-module;

[0187] The power battery simulation sub-module is used to simulate the battery capacity and charging efficiency of the electric vehicle and send them to the communication and information interaction simulation sub-module;

[0188] The vehicle controller simulation sub-module is used to simulate the control logic and communication interface for charging the electric vehicle and send them to the communication and information interaction simulation sub-module; the communication interface includes: a simulation interface that provides a communication protocol for the interaction between the electric vehicle and external devices;

[0189] The environment and road condition simulation sub-module is used to test the adaptability of the performance of the electric vehicle to the environment and driving conditions, simulate the influence of the environment on the battery and motor of the electric vehicle, obtain the test simulation results and send them to the communication and information interaction simulation sub-module;

[0190] The communication and information interaction simulation sub-module is used to simulate the process of interaction between the electric vehicle and the external device based on the battery capacity, the charging efficiency, the control logic, the communication interface, and the test simulation results, simulate the two-way interaction information between the electric vehicle and the power grid, and generate electric vehicle simulation data; the two-way interaction information between the electric vehicle and the power grid includes: power scheduling and charging time optimization.

[0191] The above-mentioned power battery simulation sub-module: is also used to simulate the dynamic performance of the electric vehicle battery pack, and support different battery chemistries (such as lithium-ion, lithium iron phosphate, solid-state batteries, etc.). A high-precision programmable DC power supply or electronic load device is used, combined with a simulation algorithm to achieve the simulation effect; the dynamic characteristics include: simulating the charge and discharge characteristics of the battery, including constant current and constant voltage modes. Support the dynamic adjustment of SOC (State of Charge) and SOH (State of Health). Support the simulation of battery fault conditions, such as overcharging, over-discharging, short circuit, and increased internal resistance.

[0192] The above-mentioned Vehicle Control Unit (VCU) simulation sub-module: It is used to simulate the logic functions and communication interfaces of the vehicle control unit, and is implemented using a real-time control platform or an embedded controller development board; the communication interfaces include: providing a communication protocol simulation structure for interacting with external devices, and are used to simulate the logic functions and communication interfaces of the vehicle control unit (VCU). It is implemented using a real-time control platform or an embedded controller development board, such as the TI C2000 series microcontrollers. The logic functions include: charge and discharge priority allocation, and simulation of fault diagnosis logic. The communication interfaces include: providing communication protocol simulations for interacting with external devices, such as CAN (Controller Area Network, bus technology), Ethernet; external devices such as charging piles, BMS (Battery Monitoring and Management System), and motor controllers.

[0193] The above-mentioned environment and road conditions simulation sub-module: It is also used to comprehensively test the adaptability of vehicle performance to the environment and driving conditions, and is implemented by combining a real-time simulation platform and environment simulation devices (such as temperature control boxes, humidity generators); it simulates the effects of the temperature, humidity, and altitude of the external environment on the power battery and the motor through the environment simulation devices; it simulates the power requirements of the vehicle under different road conditions (such as slopes, towns, highways); it provides an impact analysis of different vehicle loads; it combines the grid conditions to test the performance of electric vehicles under low voltage or frequency fluctuation conditions;

[0194] The above-mentioned communication and information interaction simulation sub-module: It is also used to be implemented using an industrial communication module and a protocol parser. Industrial communication modules such as CANoe (CAN open environment, bus development environment), OPAL-RT real-time simulation software platform, support remote software upgrade (Over-the-Air Technology, OTA) and diagnostic data upload testing; it is used for the simulation of mainstream communication protocols; mainstream communication protocols such as ISO (International Organization for Standardization) 15118, IEC (International Electro Technical Commission) 61851, CAN (Controller Area Network, serial communication protocol bus), Modbus communication protocol, and simulate the two-way information interaction between electric vehicles and the grid, including power scheduling and charging time optimization;

[0195] The above-mentioned power battery simulation sub-module, vehicle controller simulation sub-module, communication and information interaction simulation sub-module, and environment and road condition simulation sub-module can be interconnected through a grid connection interface module to construct a complete electric vehicle simulation module, which can dynamically simulate the charging and discharging behavior, grid interaction, control logic, and environmental adaptability of the entire vehicle, thereby providing a high-precision grid-connected operation test platform. The power battery simulation sub-module, vehicle controller simulation sub-module, communication and information interaction simulation sub-module, and environment and road condition simulation sub-module respectively simulate the key components and operating characteristics of different functions of electric vehicles.

[0196] Further, the electric vehicle load aggregation system includes: a central control and scheduling module, a data acquisition and analysis module, a communication and interface module, an optimization and load distribution module, and an edge computing module; the central control and scheduling module, the data acquisition and analysis module, the optimization and load distribution module, and the edge computing module are connected to the communication and interface module;

[0197] The data acquisition and analysis module is configured to obtain the grid simulation data, and analyze the grid simulation data by using big data analysis tools to generate the grid scheduling requirements of the electric vehicle and send them to the optimization and load distribution module;

[0198] The optimization and load distribution module is configured to collect the grid scheduling requirements of the electric vehicle and the state of the electric vehicle, and generate a load distribution strategy according to the grid scheduling requirements of the electric vehicle and the state of the electric vehicle, and send it to the edge computing module;

[0199] The edge computing module is configured to generate a charging pile-level computing task according to the load distribution strategy and send it to the central control and scheduling module;

[0200] The central control and scheduling module is configured to process the charging pile-level computing task by using a distributed computing architecture and a scheduling algorithm to obtain a processing result; based on the processing result, generate a charging pile-level control instruction and send it to the charging and discharging equipment.

[0201] The above-mentioned electric vehicle load aggregation system may further include: a communication and interface module; the communication and interface module serves as a communication interface between the central control and scheduling module, the data acquisition and analysis module, the optimization and load distribution module, and the edge computing module.

[0202] The above-mentioned data collection and analysis module is used to collect real-time operation data of charging piles, electric vehicles, and the power grid. It configures IoT (Internet of Things) devices to collect information and uses big data analysis tools for real-time data analysis. Examples of big data analysis tools include the Hadoop distributed file system and the Spark large-scale data processing tool. The real-time data analysis specifically includes: 1. Data collection: including voltage, current, state of charge (SOC), location information, load capacity, owner requirements, etc. 2. Data analysis: real-time analysis of load trends, identification of peak load risks, and prediction of future load demands. 3. Anomaly detection: identification of communication failures, hardware failures, or abnormal user operations.

[0203] The above-mentioned optimization and load distribution module generates a load distribution strategy according to system requirements and the state of electric vehicles. It uses a genetic algorithm combined with a machine learning model to predict load demands and vehicle behavior. Specifically, it includes: 1. Load optimization: optimizing the load distribution of electric vehicles in terms of time and space based on their remaining battery power, location, and charging requirements. 2. Dynamic allocation: adjusting the charge and discharge strategy according to the real-time changes in the power grid state. 3. Optimization objectives: including minimizing load fluctuations, reducing peak loads, and supporting frequency regulation, etc. When performing load distribution, the instruction priority is processed as follows: high priority, medium priority, and low priority are set. 1. High priority: power grid frequency regulation, emergency load shedding (such as demand response during peak hours). 2. Medium priority: dynamic load balancing, regional charging strategy adjustment. 3. Low priority: long-term optimization tasks (such as charging plans when electric vehicles are parked for a long time). The task processing order is dynamically adjusted according to the instruction priority to ensure the rapid execution of high-priority tasks.

[0204] The above-mentioned edge computing module; based on the deployment of edge devices to run lightweight AI models and control logic, some computing tasks are delegated to edge devices close to charging piles or electric vehicles to improve the speed of command response. Among them, edge devices, such as NVIDIA Jetson embedded systems and Raspberry Pi computer programming education systems. Its functions include: 1. Realize localized command processing: reduce communication delays and quickly respond to local scheduling needs. 2. Local prediction: predict short-term load changes at the charging station or regional level and provide advance response. 3. Distributed control: independently manage local loads without relying on central servers. The edge computing module also includes the deployment of distributed and edge computing architectures, which can specifically include: real-time data processing and real-time task scheduling. Real-time data processing is to distribute computing tasks such as load distribution and strategy optimization to edge computing nodes at the regional or site level (such as charging station controllers) to reduce the computing load of the central server. Strategy optimization adopts a hierarchical decision-making mechanism; hierarchical decisions can include: 1. Central level: responsible for global optimization, such as large-scale load prediction and cross-regional load distribution. 2. Regional level: responsible for the charging and discharging control and scheduling of electric vehicles in the region. 3. Device level: directly respond to the status changes of a single vehicle or a single charging station and perform rapid adjustments. Real-time task scheduling: adopts event-driven mode, dynamically triggers local optimization tasks by monitoring changes in the power grid status and vehicle status.

[0205] The above-mentioned central control and scheduling module adopts a distributed computing architecture (such as a microservices architecture) and scheduling algorithms, and is used for receiving, analyzing, optimizing, and distributing instructions for global tasks in the system. It is the core part of the system to support efficient task processing. It uses fast optimization algorithms (such as greedy algorithms, heuristic algorithms) to process a large number of instruction requests in a short time. For complex problems, a hybrid method is adopted, such as using linear programming for long-term strategies, and genetic algorithms can also be used for real-time optimization. Specific examples include: (S1) Receiving real-time scheduling instructions from power grid operators or energy markets, including requirements such as load shedding, load increase, and frequency response. Among them, power grid operators include TSO (Technical Standards Orders) and DSO (Device Software Optimization). (S2) Formulating optimized charging and discharging strategies according to the status and geographical distribution of aggregated electric vehicles. (S3) Implementing load forecasting, balanced scheduling, and policy distribution. (S4) Providing real-time monitoring and feedback channels to evaluate the execution effect of instructions. In addition, the central control and scheduling module has the ability to handle high-concurrency tasks: 1. The central system uses a microservices architecture to modularize functions such as load optimization, instruction scheduling, and data analysis, supporting multi-threaded concurrent processing. 2. Distributed task queue: Using a distributed task queue to manage instructions, and distributed task queues such as Kafka (open-source stream processing platform) and RabbitMQ (open-source message broker software) support the efficient distribution and execution of massive tasks. 3. Containerized deployment: Container technology can be used to achieve rapid expansion and dynamic load balancing of modules, avoiding system overload; container technologies such as Docker (application container engine).

[0206] The above-mentioned communication and interface module is used for interconnection with external devices, supporting multiple communication protocols. It optimizes communication efficiency using industrial-grade communication modules and edge computing technology. Industrial-grade communication modules such as 5G (5th Generation Mobile Communication Technology), LoRa (Long Range Radio), and PLC (Programmable Logic Controller) are adopted, and low-latency protocols are used to ensure the millisecond-level transmission of instructions. Specifically, it includes support for mainstream protocols such as EV (Electric Vehicle) - charging station communication ISO15118, charging pile background management protocol OCPP (Open ChargePoint Protocol), and grid communication IEC61850, ensuring system compatibility in complex scenarios and avoiding delays caused by protocol conversion. Additionally, a data caching system is deployed at the edge node to store common strategies and real-time status data, reducing the access frequency of the central server and improving the response speed.

[0207] The actual scenario of the electric vehicle load aggregation system quickly processing the regulation instructions sent by the grid can be as follows:

[0208] 1. Scenario: The grid needs frequency response

[0209] The grid operator sends a load regulation instruction (such as reducing the total regional load by 20MW) to the electric vehicle load aggregation system;

[0210] The central control module divides the task into several subtasks (such as reducing the load of each charging station by 5kW);

[0211] The communication and interface module sends the regulation instruction to the edge node (regional charging station);

[0212] Based on the current status of the charging vehicles, the edge node directly stops charging some vehicles or adjusts the charging power, with the response time controlled within milliseconds. The electric vehicle load aggregation system generates a charging pile-level regulation instruction. Starting from the moment of the charging pile-level regulation instruction, it reaches the electric vehicle charging service platform within 500ms. Starting from the moment when the electric vehicle charging service platform receives and finishes processing the charging pile-level regulation instruction, it forwards the instruction to the charging pile or replies with the instruction reception result within 200ms.

[0213] 2. Scenario: Peak load management

[0214] The system predicts that the regional load may exceed the grid capacity within the next 10 minutes;

[0215] The optimization and load distribution module generates a load distribution plan in advance to reduce unnecessary high-power charging behaviors.

[0216] The communication and interface module sends the optimization plan to the vehicle or charging pile, dynamically adjusting the charging strategy. For example, vehicles with low priority delay charging, while vehicles with high priority charge faster.

[0217] 3. Scenario: V2G response of a vehicle group

[0218] The grid operator issues a regulation instruction: Requiring 100 electric vehicles to feed back 10 MW of electricity within 5 minutes;

[0219] The central control and scheduling module screens suitable vehicles according to the SOC and location of the vehicles to generate a discharge task list.

[0220] The edge node distributes the discharge instruction to each vehicle, and the vehicle immediately starts discharging and transmits electricity to the grid. The response time of the whole process is less than 2 minutes;

[0221] The requirements for the decomposition and distribution time of the regulation instruction by the load aggregator should meet the requirements of DL / T 2473.1 7.3. The regulation performances such as the regulation accuracy, regulation rate, and response time of the electric vehicle load aggregator, electric vehicle charging service platform, and charging pile should meet the requirements of the recommended standard DL / T2473.1 7.7 of the power industry.

[0222] The technical effects and advantages of the present invention:

[0223] 1. Ensure system compatibility and security: The interaction between electric vehicles and the grid requires a high degree of compatibility and security. The inspection and test system can verify the coordination of the charging and discharging functions of electric vehicles with the grid, ensure that there is no impact on the grid during grid-connected operation, and at the same time guarantee the safety of the vehicle and the user. The inspection and test system is used to inspect and test the functions and performances of the adjustable capabilities when electric vehicles are used as adjustable load resources.

[0224] 2. Optimize energy management: Through the inspection and test system, the efficiency and stability of the energy management of electric vehicles during grid-connected operation can be evaluated. This includes the charging strategy, discharging strategy, and the performance of energy recovery, ensuring that electric vehicles can efficiently utilize grid resources while reducing the burden on the grid.

[0225] 3. Promote the development of smart grid: The grid-connected operation of electric vehicles is an important part of the smart grid. The inspection and test system can test the communication protocols and control strategies between electric vehicles and the smart grid, promote the development of smart grid technology, and realize the intelligence and automation of the grid.

[0226] 4. Improve user experience: The inspection and test system can verify the charging performance of electric vehicles under different grid conditions, ensuring that users can obtain stable and fast charging services at any time and place, thus enhancing user satisfaction and the popularization rate of electric vehicles.

[0227] 5. Promote standard formulation and compliance: Through the inspection and test system, relevant standards and specifications can be formulated for the grid-connected operation of electric vehicles, ensuring that all electric vehicles and charging facilities can comply with unified technical requirements and promoting the healthy development of the industry.

[0228] 6. Enhance operation reliability: It can achieve a comprehensive test of the interaction performance between electric vehicles and the grid, providing an efficient test platform for the development and optimization of grid-connected operation control algorithms, and enhancing the stability and reliability of the coordinated operation between electric vehicles and the grid. Constructing the inspection and test system includes: hardware construction, software development, and system integration and debugging steps. Constructing this inspection and test system is crucial for promoting the development of the electric vehicle industry, which can improve the stability and efficiency of the grid and promote the progress of smart grid technology.

[0229] In addition, in view of the problems in the prior art such as low efficiency, inconvenient data collection, lack of on-site tests, single function of the test system, and limitations of the test platform caused by the lack of such a system, these defects limit the development and application of the interaction technology between electric vehicles and the grid. The inspection and test system is constructed based on the grid dispatching system, electric vehicle load aggregation system, and electric vehicle charging service platform, including hardware construction, software development, and system integration and debugging steps; the hardware construction includes: step u1, building a grid simulation module: selecting a bidirectional power converter and a controller to simulate the dynamic characteristics of the grid; step u2, integrating an electric vehicle simulation module: designing a power battery model and a power electronics interface; step u3, configuring monitoring and data collection equipment, selecting high-precision sensors and high-speed sampling units; the software development includes: developing a control algorithm test platform to support the loading and real-time debugging of different algorithms, and also setting up a host computer management system to provide a graphical interface and data processing tools; system integration and debugging includes: integrating hardware and software modules and verifying the reliability and accuracy of the system through tests. Through the test system provided by the present invention, a comprehensive test of the interaction performance between electric vehicles and the grid can be achieved, supporting the simulation of various grid operation states, such as fault, short circuit, voltage sag and other working conditions, and having the function test ability of vehicle-grid interaction (V2G), including two-way energy flow and information interaction, providing an efficient test platform for the development and optimization of grid-connected operation control algorithms, and verifying charging power optimization, grid-connected stability control, etc., enhancing the stability and reliability of the coordinated operation between electric vehicles and the grid.

[0230] Finally, an example of the application of the inspection and test system for grid-connected operation and control of electric vehicles of the present invention is given, which specifically includes the following steps:

[0231] Step 1: Design two test methods, namely laboratory test and on-site test, according to the test technical specifications.

[0232] Step 2: The laboratory test adopts the sampling method to conduct test inspections on the combination of the same charging pile model, electric vehicle charging service platform, and electric vehicle load aggregation system.

[0233] Step 3: Based on the electric vehicle load aggregation system, conduct full-chain test inspections on the "power grid dispatching system - electric vehicle load aggregation system - electric vehicle charging service platform - charging and discharging equipment".

[0234] The inspection and test of the technical specifications for the grid connection operation and control of electric vehicles should be carried out under the condition that the type test is completed at the charging and discharging pile or the battery swapping station and a type test report is available. The construction of the inspection and test system for the technical specifications of the grid connection operation and control of electric vehicles should refer to the system provisions in Section 4.1 of the recommended national energy industry standard NB / T 11305.1-2023 "Two-way Interaction of Electric Vehicle Charging and Discharging - Part 1: General Principles".

[0235] It should be noted that all inspection and tests are carried out under normal atmospheric conditions in the jurisdiction. During the test period of each project, the test environmental conditions are as follows: environmental temperature: -20°C to +50°C, relative humidity: not more than 90%, and atmospheric pressure: 86 kPa to 106 kPa.

[0236] Example 2:

[0237] Based on the same inventive concept, as Figure 3 shown, the present invention also provides a method for inspecting and testing the grid connection operation and control of electric vehicles, which may include:

[0238] Step X1: Use the grid simulation module of the inspection and test system to generate grid simulation data by simulating a grid with dynamic characteristics.

[0239] Step X2: Use the electric vehicle simulation module of the inspection and test system to simulate the battery capacity, charging efficiency of the electric vehicle, and the control logic for charging the electric vehicle, and generate electric vehicle simulation data.

[0240] Step X3: Use the charging pile simulation module of the inspection and test system to simulate the charging pile and generate charging pile simulation data.

[0241] Step X4: Use the monitoring and data acquisition module of the inspection and test system to take the grid simulation data, the electric vehicle simulation data, and the charging pile simulation data as operation data.

[0242] Step X5: Use the inspection and test module of the inspection and test system to load the grid connection control algorithm according to the operation data, and conduct inspection and tests on the grid connection operation and control of the electric vehicle.

[0243] Further, in step X5, the use of the inspection and test module of the inspection and test system to load the grid connection control algorithm according to the operation data and conduct inspection and tests on the grid connection operation and control of the electric vehicle includes:

[0244] Use the inspection and test module to load the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, conduct inspection and tests on the grid connection operation and control of the electric vehicle, and verify the stability and response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

[0245] Further, the method further includes:

[0246] Step Y1: Use the electric vehicle load aggregation system to obtain the grid simulation data; generate the grid dispatching requirements for the electric vehicle based on the grid simulation data; generate the charging pile-level regulation instructions based on the grid dispatching requirements;

[0247] Step Y2: Use the grid dispatching system to respond to the grid dispatching requirements of the electric vehicle; generate dispatching instructions based on the grid dispatching requirements;

[0248] Step Y3: Use the electric vehicle charging service platform to respond to the dispatching instructions; form the power dispatching of the electric vehicle based on the dispatching instructions;

[0249] Step Y4: Use the charge and discharge equipment to respond to the charging pile-level regulation instructions; control the charging pile according to the charging pile-level regulation instructions, and adjust the charge and discharge of the electric vehicle according to the power dispatching of the electric vehicle.

[0250] Further, the use of the inspection and test module to load the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, conduct inspection and tests on the grid connection operation and control of the electric vehicle, and verify the stability and response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm includes:

[0251] Step X5.1: Use the general inspection sub-module to load the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, and conduct inspection and tests on the grid connection operation and control of the electric vehicle;

[0252] Step X5.2: Use the function inspection sub-module to verify the stability of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm;

[0253] Step X5.3: Use the performance test sub-module to verify the response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

[0254] Further, in step X5.1, when using the general inspection sub-module to load the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm to conduct inspection and testing on the grid-connected operation and control of the electric vehicle, it includes:

[0255] Step X5.1.1: Use the appearance test unit to check the appearance of the charge and discharge equipment during the inspection and testing of the grid-connected operation and control of the electric vehicle.

[0256] Step X5.1.2: Use the communication test unit to test the communication function between the electric vehicle simulation module and the grid simulation module during the inspection and testing of the grid-connected operation and control of the electric vehicle.

[0257] Step X5.1.3: Use the permission control test unit to set permissions for the test process of the inspection and testing module during the inspection and testing of the grid-connected operation and control of the electric vehicle, perform identity verification and authorized grid connection of the electric vehicle through the permissions, set the validity period of the permissions, and set the automatic update request of the permissions.

[0258] Step X5.1.4: Use the permission time limit test unit to control the inability to access between the electric vehicle charging service platform and the electric vehicle load aggregation system when the validity period of the permissions is exceeded based on the validity period of the permissions.

[0259] Step X5.1.5: Use the permission automatic update request test unit to test the automatic update request of the permissions.

[0260] Further, in step X5.2, when using the function inspection sub-module to verify the stability of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, it includes:

[0261] Step X5.2.1: The charge and discharge adjustable function test unit is used to verify the accuracy of the charge and discharge data of the charge and discharge equipment based on the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, and generate verification data.

[0262] Step X5.2.2: Use the metering function test unit to verify the accuracy, timeliness, and precision of the charge and discharge adjustment of the charge and discharge equipment based on the verification data, and generate a verification result.

[0263] Step X5.2.3: Using the instruction consistency test unit, check whether there are errors and / or delays in the process of sending the scheduling instructions based on the verification data;

[0264] Step X5.2.4: Using the aggregated acquisition data consistency test unit, verify whether the grid simulation data, the electric vehicle simulation data, and the charging pile simulation data are consistent with the verification data;

[0265] Step X5.2.5: Using the charge and discharge device instruction response deviation test unit, determine the response speed and response accuracy of the charge and discharge device to the charging pile-level control instructions based on the verification results.

[0266] Further, in step X5.3, using the performance test sub-module to verify the response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, including:

[0267] Step X5.3.1: Using the charge and discharge device power response delay test unit, obtain the response time required for the charge and discharge device to respond to the charging pile-level control instructions based on the bidirectional charge and discharge mode control algorithm;

[0268] Step X5.3.2: Using the charge and discharge device regulation capacity test unit, based on the constant power charge and discharge control algorithm, test the maximum capacity regulation range of the electric energy reached by the charge and discharge device, the electric vehicle charging service platform, and the electric vehicle load aggregation system under ideal conditions to obtain the test results;

[0269] Step X5.3.3: Using the charge and discharge device regulation rate test unit, based on the response time, check the response speed of the charging pile when performing charge and discharge regulation based on the charging pile-level control instructions;

[0270] Step X5.3.4: Using the charge and discharge device regulation accuracy test unit, based on the test results, check the availability of the electric vehicle charging service platform in responding to the scheduling instructions.

[0271] Further, in step X2, using the electric vehicle simulation module of the inspection and test system to simulate the battery capacity, charging efficiency, and control logic for charging an electric vehicle to generate electric vehicle simulation data, including:

[0272] Step X2.1: Using the power battery simulation sub-module to simulate the battery capacity and charging efficiency of the electric vehicle;

[0273] Step X2.2: Use the vehicle controller simulation sub-module to simulate the control logic and communication interface for charging an electric vehicle; the communication interface includes: a simulation interface that provides a communication protocol for the interaction between the electric vehicle and external devices.

[0274] Step X2.3: Use the environment and road condition simulation sub-module to test the adaptability of the performance of the electric vehicle to the environment and driving conditions, simulate the impact of the environment on the battery and motor of the electric vehicle, and obtain the test simulation results.

[0275] Step X2.4: Use the communication and information interaction simulation sub-module to simulate the process of interaction between the electric vehicle and the external device based on the battery capacity, the charging efficiency, the control logic, the communication interface, and the test simulation results, simulate the two-way interaction information between the electric vehicle and the power grid, and generate electric vehicle simulation data; the two-way interaction information between the electric vehicle and the power grid includes: power scheduling and charging time optimization.

[0276] Further, in step Y1, use the electric vehicle load aggregation system to obtain the power grid simulation data; based on the power grid simulation data, generate the power grid scheduling requirements for the electric vehicle; based on the power grid scheduling requirements, generate charging pile-level control instructions, including:

[0277] Step Y1.1: Use the data collection and analysis module to obtain the power grid simulation data, and use big data analysis tools to analyze the power grid simulation data to generate the power grid scheduling requirements for the electric vehicle.

[0278] Step Y1.2: Use the optimization and load distribution module to collect the power grid scheduling requirements of the electric vehicle and the status of the electric vehicle, and generate a load distribution strategy according to the power grid scheduling requirements of the electric vehicle and the status of the electric vehicle.

[0279] Step Y1.3: Use the edge computing module to generate charging pile-level computing tasks according to the load distribution strategy.

[0280] Step Y1.4: Use the central control and scheduling module to process the charging pile-level computing tasks using a distributed computing architecture and a scheduling algorithm to obtain a processing result; based on the processing result, generate charging pile-level control instructions.

[0281] Embodiment 3:

[0282] As Figure 4As shown, the present invention also provides an electronic device, which may be a computer device, a single-chip microcomputer device, a smart mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected through a bus; the memory can be used to store an execution program, and an exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory can also be used to store data, and this data can be called and / or modified when the instructions are executed.

[0283] The processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, and is suitable for implementing one or more instructions. Specifically, it is suitable for loading and executing one or more instructions in the storage medium to implement the corresponding method flow or corresponding function, so as to implement the steps of a method for testing the grid connection operation and control of an electric vehicle in the above embodiment.

[0284] Embodiment 4:

[0285] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device-readable storage medium (Memory). The electronic device-readable storage medium is a memory device in the electronic device and is used to store programs and data. It can be understood that the storage medium here can include both the built-in storage medium in the electronic device and, of course, the extended storage medium supported by the electronic device. The storage medium provides a storage space, and this storage space stores the operating system of the terminal. And, one or more instructions suitable for being loaded and executed by the processor are stored in this storage space. These instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. By the processor loading and executing one or more instructions stored in the storage medium, the steps of a method for testing the grid connection operation and control of an electric vehicle in the above embodiment can be implemented.

[0286] Those skilled in the art should understand that the embodiments of the present invention application can be provided as a method, a system, or a computer program product. Therefore, the present invention application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) that contain computer-usable program code.

[0287] The present invention application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0288] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing devices to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device implements the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0289] These computer program instructions can also be loaded onto a computer or other programmable data processing devices, such that a series of operation steps are executed on the computer or other programmable devices to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable devices provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0290] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention application and not to limit its protection scope. Although the present invention application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that after reading the present invention application, various changes, modifications, or equivalent replacements can still be made to the specific implementation manners of the application. However, these changes, modifications, or equivalent replacements are all within the protection scope of the pending claims of the application.

Claims

1. An inspection and test system for grid-connected operation and control of an electric vehicle, characterized in that Including: A power grid simulation module, an electric vehicle simulation module, a charging pile simulation module, a monitoring and data acquisition module, and an inspection and test module that are communicatively connected; The power grid simulation module is configured to generate power grid simulation data by simulating a power grid with dynamic characteristics and send the power grid simulation data to the monitoring and data acquisition module; The electric vehicle simulation module is configured to simulate the battery capacity, charging efficiency of an electric vehicle, and the control logic for charging the electric vehicle, generate electric vehicle simulation data, and send the electric vehicle simulation data to the monitoring and data acquisition module; The charging pile simulation module is configured to simulate a charging pile, generate charging pile simulation data, and send the charging pile simulation data to the monitoring and data acquisition module; The monitoring and data acquisition module is configured to send the received power grid simulation data, electric vehicle simulation data, and charging pile simulation data as operation data to the inspection and test module; The inspection and test module is configured to load a grid connection control algorithm according to the operation data and conduct inspection and testing on the grid connection operation and control of the electric vehicle.

2. The system according to claim 1, wherein The inspection and test module is specifically configured to load a bidirectional charge and discharge mode control algorithm and / or a constant power charge and discharge control algorithm, conduct inspection and testing on the grid connection operation and control of the electric vehicle, and verify the stability and response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

3. The system according to claim 1, characterized in that, Further including: A power grid dispatching system, an electric vehicle load aggregation system, an electric vehicle charging service platform, and charge and discharge equipment that are communicatively connected to the monitoring and data acquisition module; The electric vehicle load aggregation system is configured to obtain the power grid simulation data; generate a power grid dispatching demand for the electric vehicle based on the power grid simulation data and send it to the power grid dispatching system; Generate a charging pile-level regulation instruction based on the power grid dispatching demand and send it to the charge and discharge equipment; The power grid dispatching system is configured to respond to the power grid dispatching demand of the electric vehicle; generate a dispatching instruction based on the power grid dispatching demand and send it to the electric vehicle charging service platform; The electric vehicle charging service platform is configured to respond to the dispatching instruction; Form an electric power dispatching for the electric vehicle based on the dispatching instruction and send it to the charging pile; The charge and discharge equipment is configured to respond to the charging pile-level regulation instruction; control the charging pile according to the charging pile-level regulation instruction, and perform charge and discharge regulation on the electric vehicle according to the electric power dispatching of the electric vehicle.

4. The system according to claim 2, characterized in that, The inspection and test module includes: a general inspection sub-module, a function inspection sub-module, and a performance test sub-module; The general inspection sub-module is configured to load a bidirectional charge and discharge mode control algorithm and / or a constant power charge and discharge control algorithm, and conduct inspection and testing on the grid connection operation and control of the electric vehicle; The function inspection sub-module is configured to verify the stability of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm; The performance test sub-module is configured to verify the response performance of the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm.

5. The system according to claim 4, wherein The general inspection sub-module includes: an appearance test unit, a communication test unit, a permission control test unit, a permission validity test unit, and a permission automatic update request test unit; the appearance test unit is communicatively connected to the charging and discharging device, the communication test unit is communicatively connected to the power grid simulation module, the permission control test unit is communicatively connected to the inspection and test module, and the permission control test unit, the permission validity test unit, and the permission automatic update request test unit are communicatively connected; The appearance test unit is used to inspect the appearance of the charging and discharging device during the inspection and test of the grid connection operation and control of the electric vehicle; The communication test unit is used to test the communication function between the electric vehicle simulation module and the power grid simulation module during the inspection and test of the grid connection operation and control of the electric vehicle; The permission control test unit is used to set permissions for the test process of the inspection and test module during the inspection and test of the grid connection operation and control of the electric vehicle, authenticate and authorize the grid connection of the electric vehicle through the permissions, set the validity period of the permissions and send it to the permission validity test unit, and set the automatic update request of the permissions and send it to the permission automatic update request test unit; The permission validity test unit is used to control the inability to access between the electric vehicle charging service platform and the electric vehicle load aggregation system when the validity period of the permissions is exceeded based on the validity period of the permissions; The permission automatic update request test unit is used to test the automatic update request of the permissions.

6. The system according to claim 4, wherein The function inspection sub-module includes: a charge and discharge adjustable function test unit, a metering function test unit, an instruction consistency test unit, an aggregated acquisition data consistency test unit, and a charge and discharge device instruction response deviation test unit; The charge and discharge adjustable function test unit is used to verify the accuracy of the charge and discharge data of the charging and discharging device based on the bidirectional charge and discharge mode control algorithm and / or the constant power charge and discharge control algorithm, generate verification data and send it to the metering function test unit, the instruction consistency test unit, and the aggregated acquisition data consistency test unit; The metering function test unit is used to verify the accuracy, timeliness, and precision of the charge and discharge adjustment of the charging and discharging device based on the verification data, generate a verification result and send it to the charge and discharge device instruction response deviation test unit; The instruction consistency test unit is used to check whether there are errors and / or delays in the process of sending the dispatching instruction based on the verification data; The aggregated acquisition data consistency test unit is used to verify whether the power grid simulation data, the electric vehicle simulation data, and the charging pile simulation data are consistent with the verification data; The charge and discharge device instruction response deviation test unit is used to determine the response speed and response accuracy of the charging and discharging device to the charging pile-level control instruction based on the verification result.

7. The system according to claim 4, characterized in that The performance test sub-module includes: a charge and discharge equipment power response delay test unit, a charge and discharge equipment regulation capacity test unit, a charge and discharge equipment regulation rate test unit, and a charge and discharge equipment regulation accuracy test unit; The charge and discharge equipment power response delay test unit is used to obtain the response time required for the charge and discharge equipment to respond to the charging pile-level regulation instruction based on the bidirectional charge and discharge mode control algorithm and send it to the charge and discharge equipment regulation rate test unit; The charge and discharge equipment regulation capacity test unit is used to test the maximum capacity adjustment range of electric energy achieved by the charge and discharge equipment, the electric vehicle charging service platform, and the electric vehicle load aggregation system under ideal conditions based on the constant power charge and discharge control algorithm, obtain the test results and send them to the charge and discharge equipment regulation accuracy test unit; The charge and discharge equipment regulation rate test unit is used to check the response speed of the charging pile for charge and discharge regulation based on the charging pile-level regulation instruction based on the response time; The charge and discharge equipment regulation accuracy test unit is used to check the availability of the electric vehicle charging service platform to respond to the dispatching instruction based on the test results; 8. The system according to claim 1, characterized in that, The electric vehicle simulation module includes: a power battery simulation sub-module, a vehicle controller simulation sub-module, a communication and information interaction simulation sub-module, and an environment and road condition simulation sub-module; The power battery simulation sub-module is used to simulate the battery capacity and charging efficiency of the electric vehicle and send them to the communication and information interaction simulation sub-module; The vehicle controller simulation sub-module is used to simulate the control logic and communication interface for charging the electric vehicle and send them to the communication and information interaction simulation sub-module; the communication interface includes: a simulation interface providing the communication protocol for the interaction between the electric vehicle and external devices; The environment and road condition simulation sub-module is used to test the adaptability of the performance of the electric vehicle to the environment and driving conditions, simulate the influence of the environment on the battery and motor of the electric vehicle, obtain the test simulation results and send them to the communication and information interaction simulation sub-module; The communication and information interaction simulation sub-module is used to simulate the process of interaction between the electric vehicle and external devices, simulate the two-way interaction information between the electric vehicle and the power grid, and generate electric vehicle simulation data based on the battery capacity, the charging efficiency, the control logic, the communication interface, and the test simulation results; the two-way interaction information between the electric vehicle and the power grid includes: power dispatching and charging time optimization; 9. The system according to claim 3, wherein The electric vehicle load aggregation system includes: a central control and dispatching module, a data collection and analysis module, a communication and interface module, an optimization and load distribution module, and an edge computing module; the central control and dispatching module, the data collection and analysis module, the optimization and load distribution module, and the edge computing module are connected to the communication and interface module; The data collection and analysis module is used to obtain the power grid simulation data and analyze the power grid simulation data using big data analysis tools to generate the power grid dispatching requirements of the electric vehicle and send them to the optimization and load distribution module; The optimization and load distribution module is used to collect the grid dispatching requirements and the status of the electric vehicle, and generate a load distribution strategy according to the grid dispatching requirements and the status of the electric vehicle, and send it to the edge computing module; The edge computing module is used to generate a charging pile-level computing task according to the load distribution strategy and send it to the central control and dispatching module; The central control and dispatching module is used to process the charging pile-level computing task by using a distributed computing architecture and a scheduling algorithm to obtain a processing result; based on the processing result, generate a charging pile-level control instruction and send it to the charging and discharging equipment.

10. A method for testing the grid connection operation and control of an electric vehicle, which uses the electric vehicle grid connection operation and control test system described in any one of claims 1-9 above, is characterized in that, It includes: Using the grid simulation module of the inspection and testing system, by simulating a grid with dynamic characteristics, grid simulation data is generated; Using the electric vehicle simulation module of the inspection and testing system, simulating the battery capacity, charging efficiency of the electric vehicle and the control logic for charging the electric vehicle, electric vehicle simulation data is generated; Using the charging pile simulation module of the inspection and testing system, simulating the charging pile, charging pile simulation data is generated; Using the monitoring and data acquisition module of the inspection and testing system, taking the grid simulation data, the electric vehicle simulation data and the charging pile simulation data as operation data; Using the inspection and testing module of the inspection and testing system, according to the operation data, loading a grid connection control algorithm, and conducting inspection and testing on the grid connection operation and control of the electric vehicle.

Images