Method and device for testing load of alternating current charging pile, and medium

Abstract

The invention provides an alternating current charging pile load test method and device and a medium, and belongs to the technical field of charging piles. The method comprises the following steps: constructing a circuit system for simulating the state of the electric vehicle; parameters of the simulation load are configured through a software tool, charging behaviors of the electric vehicle under different electric quantity states are simulated, and rapid changes of the load under specific working conditions are simulated; key parameters are collected from the simulation load system and the alternating current charging pile in real time or periodically; and analyzing the collected data through a data processing algorithm, and generating a detailed test report. According to the invention, rapid configuration of the AC charging pile load is realized, the test period is shortened, and the test efficiency is improved. And an automatic test method is adopted, so that the human input and the dependence on test equipment are reduced, and the test cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to a method, a device and a medium for testing an AC charging pile load, and belongs to the technical field of charging piles. Background Art

[0002] With the widespread popularity of two-wheeled electric vehicles, AC charging piles are important charging infrastructure, and their performance stability and safety are directly related to the user experience and safety. Therefore, it is particularly important to conduct effective and comprehensive testing of AC charging piles. At present, the testing method of AC charging piles mainly relies on hardware load boxes or real two-wheeled electric vehicle loads. However, this method has many shortcomings. First, the cost is too high because multiple two-wheeled electric vehicles or hardware load boxes need to be purchased for testing. Secondly, the flexibility is poor, the two-wheeled electric vehicles are difficult to divert, and the testers need to constantly manually adjust the charging status of the electric vehicle to adapt to different testing requirements. Furthermore, the test efficiency is low, and it is impossible to quickly realize the complex scenarios of actual charging of electric vehicles, and it is even more impossible to meet the needs of rapid iteration of product development.

[0003] In addition, the existing AC charging pile test scheme also has the problem of limited test scenarios. Testers can often only test a single charging pile and cannot simulate the situation where multiple charging piles are working at the same time. Especially when multiple electric vehicles are charging at the same time, the performance and stability of the charging pile may be affected, but the existing test methods cannot effectively evaluate this situation. At the same time, data analysis and processing capabilities are also a major shortcoming of existing technologies. Due to the different levels of testers, it is impossible to quickly and accurately extract and analyze key information in the test data, resulting in difficulties in the interpretation and evaluation of test results. This makes it difficult for testers to promptly discover and predict possible problems with the charging pile, which affects the research and development quality and market competitiveness of the charging pile.

[0004] In summary, the existing AC charging pile testing methods have shortcomings in terms of cost, flexibility, testing efficiency, test scenario coverage, and data analysis and processing capabilities. Summary of the invention

[0005] The purpose of the present invention is to provide a method, device and medium for testing the load of an AC charging pile, and to provide an efficient, economical, flexible and comprehensive testing solution to solve the above technical problems.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions: A method for testing an AC charging pile load comprises the following steps: Construct a circuit system for simulating the state of an electric vehicle, including a power circuit part, a control circuit part and a measurement circuit part, which is used to simulate the actual power consumption of the electric vehicle during the charging process, realize the switching of different load states and measure various parameters of the simulated load during the charging process; Use software tools to configure the parameters of simulated loads, simulate the charging behavior of electric vehicles at different power levels, and simulate the rapid changes of loads under specific working conditions; Collect key parameters from simulated load systems and AC charging piles in real time or periodically; The collected data is analyzed through data processing algorithms and a detailed test report is generated.

[0007] Preferably, the electric vehicle in different power states includes: Electric vehicle low power state: simulate the low power state of the electric vehicle, test the stability of the entire charging cycle, and confirm whether the uploaded power is correct; Electric vehicle fully charged state: It can simulate the electric vehicle battery reaching a fully charged state, and test the accuracy of the trickle charge control and full-charge automatic stop function of the charging pile when it is nearly fully charged; Load connection and disconnection status: Switch the connection status of the load to simulate the user's plugging and unplugging behavior during the charging process to test the instant response capability and safety protection mechanism of the charging pile; Multiple loads disconnected or disconnected at the same time: In the scenario where multiple vehicles are charging at the same time, test the simultaneous disconnection or connection of multiple virtual loads, and test the stability and management ability of the charging pile under sudden load changes.

[0008] Preferably, configuring the parameters of the simulated load by a software tool comprises the following steps: Initialization operation: When using for the first time, use the tool to obtain the parameters of the AC charging pile, including rated power, maximum charging current, and single-phase or three-phase power supply; Custom rule configuration: According to the test requirements, configure the parameters of the simulated load through the graphical user interface or script file, including the charging status, charging current, and charging voltage in different time periods to simulate the actual charging status changes of electric vehicles; Automatic or manual test mode: Based on your needs, choose to execute the parameter configuration of the simulated load in real time or periodically to test the performance of the AC charging pile in different test scenarios.

[0009] Preferably, collecting key parameters from the simulated load system and the AC charging pile in real time or periodically includes the following steps: Use embedded development boards and sensors to collect the voltage, current and power of AC charging piles; Record the charging status changes of the simulated load, such as charging connection or disconnection, charging voltage and current fluctuations; Record the charging status changes of the AC charging pile, including the increase or decrease of current and power, and temperature changes; Summarizes and records key indicators, including charging efficiency, overload, overtemperature, connection status, connection time, voltage and current fluctuation data.

[0010] Preferably, the collected data is analyzed by a data processing algorithm, and a detailed test report is generated, including: performing statistical analysis on the collected data to evaluate the performance of the AC charging pile; generating a test report, including generating a detailed test report on demand, including data charts, timing diagrams and fault descriptions, for evaluating the performance of the DC charging pile.

[0011] A device for testing an AC charging pile load comprises a processor and a memory storing program instructions, wherein the processor is configured to execute a method for testing an AC charging pile load when running the program instructions.

[0012] A computer-readable storage medium stores a computer program, which is executed by a processor to implement the AC charging pile load testing method.

[0013] The advantages of the present invention are: the present invention realizes the rapid configuration of the AC charging pile load, without the need to manually adjust the load size and parameters, thereby greatly shortening the test cycle and improving the test efficiency. The use of automated testing methods reduces the manpower input and the dependence on test equipment, effectively reducing the test cost. The efficient testing method helps to timely discover and solve potential problems of the charging pile in the load test, thereby ensuring the performance and safety of the charging pile and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0015] Figure 1 It is a schematic diagram of the process of the present invention.

[0016] Figure 2 It is a schematic diagram of the test process of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1 like Figure 1 As shown, a method for testing an AC charging pile load comprises the following steps: S1: Construct a circuit system that simulates the state of an electric vehicle, including a power circuit part, a control circuit part, and a measurement circuit part, which is used to simulate the actual power consumption of the electric vehicle during the charging process, realize the switching of different load states, and measure various parameters of the simulated load during the charging process.

[0019] S2: Configure the parameters of the simulated load through software tools, simulate the charging behavior of electric vehicles under different power states, and simulate the rapid changes of the load under specific working conditions.

[0020] S3: Collect key parameters from the simulated load system and AC charging pile in real time or periodically.

[0021] S4: Analyze the collected data through data processing algorithms and generate a detailed test report.

[0022] As a refinement of the above embodiment, the power circuit is the core part of the simulated load, which is used to simulate the actual power consumption of the electric vehicle during the charging process; the control circuit is used to control the various components in the power circuit to achieve switching of different load states; the measurement circuit is mainly used to measure various parameters of the simulated load during the charging process to provide data support for the test.

[0023] As a refinement of the above embodiment, the electric vehicle includes the following in different power states: Electric vehicle low-battery state: simulate the low-battery state of an electric vehicle, test the stability of the entire charging cycle, and confirm whether the uploaded power is correct.

[0024] Electric vehicle fully charged state: It can simulate the electric vehicle battery reaching a fully charged state, and test the accuracy of the trickle charge control and full-charge automatic stop function of the charging pile when it is nearly fully charged.

[0025] Load connection and disconnection status: Switch the connection status of the load to simulate the user's plugging and unplugging behavior during the charging process to test the charging pile's instant response capability and safety protection mechanism.

[0026] Multiple loads disconnected or disconnected at the same time: In the scenario where multiple vehicles are charging at the same time, test the simultaneous disconnection or connection of multiple virtual loads, and test the stability and management ability of the charging pile under sudden load changes.

[0027] As a refinement of the above embodiment, configuring the parameters of the simulated load through a software tool includes the following steps: Initialization operation: When using for the first time, use the tool to obtain the parameters of the AC charging pile, including rated power, maximum charging current, and single-phase or three-phase power supply.

[0028] Custom rule configuration: According to the test requirements, configure the parameters of the simulated load through the graphical user interface or script file, including the charging status, charging current, and charging voltage in different time periods to simulate the actual charging status changes of electric vehicles.

[0029] Automatic or manual test mode: Based on your needs, choose to execute the parameter configuration of the simulated load in real time or periodically to test the performance of the AC charging pile in different test scenarios.

[0030] As a refinement of the above embodiment, collecting key parameters from the simulated load system and the AC charging pile in real time or periodically includes the following steps: Use embedded development boards and sensors to collect the voltage, current, and power of the AC charging pile.

[0031] Record charging status changes of simulated loads, such as charging connection or disconnection, charging voltage and current fluctuations.

[0032] Record the charging status changes of the AC charging pile, including the increase or decrease of current and power, and temperature changes.

[0033] Summarizes and records key indicators, including charging efficiency, overload, overtemperature, connection status, connection time, voltage and current fluctuation data.

[0034] As a refinement of the above embodiment, the collected data is analyzed through a data processing algorithm, and a detailed test report is generated, including: performing statistical analysis on the collected data to evaluate the performance of the AC charging pile; generating a test report, including generating a detailed test report on demand, including data charts, timing diagrams and fault descriptions, for evaluating the performance of the DC charging pile.

[0035] The embodiment of the present disclosure also provides a test device for an AC charging pile load, including a processor and a memory. Optionally, the device may also include a communication interface and a bus. The processor, the communication interface, and the memory may communicate with each other through the bus. The communication interface may be used for information transmission. The processor may call the logic instructions in the memory to execute the test method for the AC charging pile load of the above embodiment.

[0036] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0037] The memory, as a computer-readable storage medium, can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor executes the function application and data processing by running the program instructions / modules stored in the memory, that is, the test method of the AC charging pile load in the above embodiment is implemented.

[0038] The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory may include a high-speed random access memory and may also include a non-volatile memory.

[0039] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned AC charging pile load testing method.

[0040] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0041] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for testing an AC charging pile load, characterized in that: The following steps are involved: Construct a circuit system for simulating the state of an electric vehicle, including a power circuit part, a control circuit part and a measurement circuit part, which is used to simulate the actual power consumption of the electric vehicle during the charging process, realize the switching of different load states and measure various parameters of the simulated load during the charging process; Use software tools to configure the parameters of simulated loads, simulate the charging behavior of electric vehicles at different power levels, and simulate the rapid changes of loads under specific working conditions; Collect key parameters from simulated load systems and AC charging piles in real time or periodically; The collected data is analyzed through data processing algorithms and a detailed test report is generated.

2. The AC charging pile load testing method according to claim 1, characterized in that: Electric vehicles in different power states include: Electric vehicle low power state: simulate the low power state of the electric vehicle, test the stability of the entire charging cycle, and confirm whether the uploaded power is correct; Electric vehicle fully charged state: It can simulate the electric vehicle battery reaching a fully charged state, and test the accuracy of the trickle charge control and full-charge automatic stop function of the charging pile when it is nearly fully charged; Load connection and disconnection status: Switch the connection status of the load to simulate the user's plugging and unplugging behavior during the charging process to test the instant response capability and safety protection mechanism of the charging pile; Multiple loads disconnected or disconnected at the same time: In the scenario where multiple vehicles are charging at the same time, test the simultaneous disconnection or connection of multiple virtual loads, and test the stability and management ability of the charging pile under sudden load changes.

3. The AC charging pile load testing method according to claim 2, characterized in that: The parameters of the simulated load are configured through the software tool, including the following steps: Initialization operation: When using for the first time, use the tool to obtain the parameters of the AC charging pile, including rated power, maximum charging current, and single-phase or three-phase power supply; Custom rule configuration: According to the test requirements, configure the parameters of the simulated load through the graphical user interface or script file, including the charging status, charging current, and charging voltage in different time periods to simulate the actual charging status changes of electric vehicles; Automatic or manual test mode: Based on your needs, choose to execute the parameter configuration of the simulated load in real time or periodically to test the performance of the AC charging pile in different test scenarios.

4. The AC charging pile load testing method according to claim 1, characterized in that: Collecting key parameters from the simulated load system and AC charging pile in real time or periodically includes the following steps: Use embedded development boards and sensors to collect the voltage, current and power of AC charging piles; Record the charging status changes of the simulated load, such as charging connection or disconnection, charging voltage and current fluctuations; Record the charging status changes of the AC charging pile, including the increase or decrease of current and power, and temperature changes; Summarizes and records key indicators, including charging efficiency, overload, overtemperature, connection status, connection time, voltage and current fluctuation data.

5. The AC charging pile load testing method according to claim 1, characterized in that: The collected data is analyzed through data processing algorithms, and a detailed test report is generated, including: statistical analysis of the collected data to evaluate the performance of the AC charging pile; test report generation, including on-demand generation of detailed test reports, including data charts, timing diagrams and fault descriptions, which are used to evaluate the performance of the DC charging pile.

6. A test device for an AC charging pile load, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the AC charging pile load testing method as described in any one of claims 1-5 when running the program instructions.

7. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the program is executed by a processor, the method described in any one of claims 1 to 5 is implemented.

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