CN-122017405-A - Automatic test system and method for authentication standard of energy storage converter

CN122017405ACN 122017405 ACN122017405 ACN 122017405ACN-122017405-A

Abstract

The invention provides an energy storage converter authentication standard automatic test system which comprises a hardware test platform, a central control and processing unit, a standard test case database, an automatic test engine and an intelligent analysis and report generation module. Simulating working conditions of a battery and a power grid through a hardware test platform and collecting data; taking the central control and processing unit as a core for scheduling; storing the structured test cases through a standard test case database; the invention realizes the full-flow automation, standardization and intellectualization of the authentication test of the energy storage converter, greatly improves the test efficiency, accuracy and consistency, and solves the problems of low efficiency, easy error and difficult strict alignment of the traditional manual test.

Inventors

XU CHUNYAN
LU JINHAO
YAO SHAOXIONG

Assignees

深圳市盛弘电气股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260128

Claims (10)

1. An energy storage converter authentication standard automatic test system, comprising: The hardware test platform comprises a programmable direct current power supply for simulating a battery, a power grid simulator for simulating a power grid, a data acquisition unit for acquiring test data and an interface cabinet for connecting an energy storage converter to be tested; The central control and processing unit is in communication connection with the hardware test platform and is used for controlling the programmable direct current power supply, the power grid simulator and the data acquisition unit of the hardware test platform to work cooperatively; The system comprises a standard test case database, a standard test case database and a standard test program database, wherein the standard test case database stores a plurality of standardized test cases generated according to at least one target authentication standard structural decomposition, and each standardized test case at least comprises a test item identifier, a test purpose, a pre-condition, an excitation signal parameter, a test step sequence, an expected result criterion and a data acquisition requirement; The automatic test engine is respectively connected with the standard test case database and the central control and processing unit and is used for analyzing and executing the standard test cases selected from the standard test case database, automatically generating a control instruction sequence according to the test step sequence and the excitation signal parameters of the selected standard test cases and transmitting the control instruction sequence to the central control and processing unit so as to control the hardware test platform to execute a plurality of test items, monitor the test state in real time and automatically trigger the data acquisition unit to record test data; The intelligent analysis and report generation module is connected with the automatic test engine and the data acquisition unit, and is used for automatically comparing and analyzing the actual measurement data recorded by the data acquisition unit with expected result criteria in the corresponding standardized test cases, and automatically generating a detailed test report containing test data, analysis and comparison results and test conclusions according to a preset report template.
2. The energy storage converter authentication standard automatic test system according to claim 1, wherein the programmable direct current power supply is used for providing adjustable direct current voltage and current according to excitation signal parameters of test cases, and the power grid simulator is used for simulating voltage, frequency, waveform distortion and fault conditions of a power grid according to the excitation signal parameters of the test cases.
3. The energy storage converter certification automatic test system according to claim 1, wherein the test items include one or more of basic performance tests, protection function tests, and power quality tests.
4. The energy storage converter authentication standard automatic test system according to claim 1, wherein the automatic test engine is further configured to monitor an output condition of the hardware test platform in real time during a test execution process, and automatically generate an adjustment instruction and perform parameter fine adjustment on the hardware test platform through the central control and processing unit when it is detected that the output condition deviates from a preset requirement of a currently executed standardized test case, so that the test condition meets a standard requirement.
5. The automatic test system of energy storage converter authentication criteria of claim 1, wherein the automatic comparison and analysis by the intelligent analysis and report generation module comprises extracting feature data corresponding to an expected result criterion from measured data, comparing the feature data with a criterion threshold or range, and automatically determining that a single test result is pass or fail.
6. An automatic test method for authentication standards of an energy storage converter based on the system of any one of claims 1 to 5, comprising the following steps: Step S1, a tested energy storage converter is connected to the interface cabinet, and authentication standards or test item selection instructions input by a user are received; S2, loading one or more corresponding standardized test cases from the standard test case database according to the selection instruction, and analyzing by the automatic test engine; Step S3, automatically generating a control instruction sequence according to the test step sequence of the selected standardized test case and the excitation signal parameters, and transmitting the control instruction sequence to the central control and processing unit so as to control the hardware test platform to execute a plurality of test items; S4, after the single test or the series of tests are completed, automatically extracting characteristic data in the measured data, comparing the characteristic data with expected result criteria in corresponding standardized test cases, and automatically judging the passing state of each test item; And S5, automatically generating a complete authentication test report according to a preset template based on the measured data, analysis comparison results and judgment conclusions of all the test items.
7. The test method according to claim 6, further comprising monitoring output conditions of the hardware test platform in real time, automatically generating an adjustment instruction and performing parameter fine adjustment on the hardware test platform through the central control and processing unit when the output conditions are detected to deviate from preset requirements of currently executed standardized test cases, so that the test conditions meet the standard requirements.
8. The test method of claim 6, wherein the test items include one or more of a basic performance test, a protection function test, and a power quality test.
9. The method according to claim 6, wherein in step S5, if all the test items are determined to pass, the report generating module automatically gathers the test data, generates a test conclusion, and attaches the original data to form a certification test report, and if any one of the test items is determined to fail, the report generating module records detailed information of the failed item.
10. The test method according to claim 6, wherein in step S4, feature data corresponding to an expected result criterion is extracted from the measured data, and the feature data is compared with a criterion threshold or range to determine whether a single test result is a pass or fail.

Description

Automatic test system and method for authentication standard of energy storage converter Technical Field The invention relates to the technical field of power electronic testing, in particular to an automatic testing system and method for an authentication standard of an energy storage converter. Background As a core component of the energy storage system, the performance, safety and grid connection characteristics of the energy storage converter must meet a series of strict authentication standards, such as national standards in china (GB/T34120, GB/T34133), UL1547 in the united states, EN 50549 in the european union, and the like. These standards cover a number of aspects of electrical performance, safety protection, grid adaptability, electromagnetic compatibility, and the like. The certification test process of existing energy storage converters is inherently highly dependent on manual serialization operations. The whole process starts from manually researching and reading a standard document by an engineer, manually setting all parameters of the tested equipment (such as voltage frequency waveforms of a power grid simulator, power curves of a direct current source and the like) according to the parameters, then gradually executing various tests, and manually recording key data and judging whether the response of the tested equipment meets the requirements in real time. After the test is completed, engineers need to manually summarize and sort all test data, manually draw various waveforms and characteristic curves, and finally write test reports item by item. The authentication test technology is severely dependent on manual operation and interpretation, so that the overall efficiency is low and the consistency of results is difficult to guarantee. The test engineer must manually configure a large number of devices, perform repeated steps and record massive data, making the test cycle lengthy and labor costly. More importantly, the step deviation and subjective judgment error are inevitably introduced into manual operation, so that the comparability of test results of different personnel and different times is poor, and the authority and repeatability of the authentication conclusion are weakened. Furthermore, existing methods have inherent drawbacks in testing the integrity of coverage and data value mining. In the face of complex and strict technical standards, manual testing is difficult to systematically cover all critical conditions and edge use cases, and the omission risk exists. The large amount of data generated in the test process is only used for generating a static report, the whole flow is tedious and error-prone, potential product performance trend and depth insight behind the data are completely wasted, so that the test link only plays a role of 'qualification judgment', and effective feedback cannot be provided for product iteration and reliability improvement. Based on this, a new solution is needed. Disclosure of Invention The invention provides an automatic test system and an automatic test method for an authentication standard of an energy storage converter. According to an aspect of the present invention, there is provided an automatic test system for authentication standards of an energy storage converter, including: The hardware test platform comprises a programmable direct current power supply for simulating a battery, a power grid simulator for simulating a power grid, a data acquisition unit for acquiring test data and an interface cabinet for connecting an energy storage converter to be tested; The central control and processing unit is in communication connection with the hardware test platform and is used for controlling the programmable direct current power supply, the power grid simulator and the data acquisition unit of the hardware test platform to work cooperatively; The system comprises a standard test case database, a standard test case database and a standard test program database, wherein the standard test case database stores a plurality of standardized test cases generated according to at least one target authentication standard structural decomposition, and each standardized test case at least comprises a test item identifier, a test purpose, a pre-condition, an excitation signal parameter, a test step sequence, an expected result criterion and a data acquisition requirement; The automatic test engine is respectively connected with the standard test case database and the central control and processing unit and is used for analyzing and executing the standard test cases selected from the standard test case database, automatically generating a control instruction sequence according to the test step sequence and the excitation signal parameters of the selected standard test cases and transmitting the control instruction sequence to the central control and processing unit so as to control the hardware test platform to execute a plurality of test items, monitor the t