Excitation system limiter performance test system and method

Abstract

The invention relates to the technical field of motor excitation control, in particular to an excitation system limiter performance test system and method, and the system comprises a hardware inspection module which carries out the hardware inspection of an excitation system limiter, and obtains a first inspection result which comprises hardware connection information and hardware state information; the parameter setting module is used for performing parameter setting on the excitation system limiter to obtain a first setting result, and the first setting result comprises signal parameter information and load parameter information; the environment simulation module is used for simulating a test environment to obtain a first simulation result, and the first simulation result comprises simulation signal information and simulation load information; the performance testing module is used for testing the performance of the excitation system limiter according to the first checking result and the first setting result to obtain a first testing result; the result adjusting module is used for adjusting the first test result according to the first simulation result to obtain a second test result; and a report generation module.

Description

Technical Field

[0001] The present invention relates to the technical field of motor excitation control, and in particular to a system and method for testing the performance of an excitation system limiter. Background Art

[0002] The excitation system is crucial in power systems. Its limiter ensures stable generator operation under various operating conditions, preventing excessive or insufficient excitation current, which could damage equipment and cause system instability. However, existing excitation system limiter testing methods often rely on manual operation and data recording, which is not only inefficient but also prone to significant errors in test results due to human error.

[0003] Furthermore, the numerous test items require frequent equipment changes and parameter adjustments between tests, further increasing testing complexity and time costs. Furthermore, traditional testing methods struggle to simulate the complex operating conditions of actual power system operations, making it impossible to comprehensively and accurately evaluate the limiter's performance. Therefore, there is an urgent need to develop an automated testing system for excitation system limiters that can automate testing, improve test accuracy and efficiency, and simulate a variety of complex operating conditions. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an excitation system limiter performance testing system and method which improves test efficiency, reduces test complexity and time cost, and improves the accuracy and reliability of test results.

[0005] In a first aspect, the present invention provides an excitation system limiter performance testing system, the system comprising:

[0006] a hardware inspection module, performing a hardware inspection on the excitation system limiter to obtain a first inspection result, wherein the first inspection result includes hardware connection information and hardware status information;

[0007] a parameter setting module, performing parameter setting on the excitation system limiter to obtain a first setting result, wherein the first setting result includes signal parameter information and load parameter information;

[0008] An environment simulation module simulates a test environment to obtain a first simulation result, wherein the first simulation result includes simulation signal information and simulation load information;

[0009] a performance testing module, performing a performance test on the excitation system limiter according to the first inspection result and the first setting result to obtain a first test result;

[0010] a result adjustment module, adjusting the first test result according to the first simulation result to obtain a second test result;

[0011] The report generation module determines whether the second test result meets the preset performance standard according to the preset test standard and generates a test report.

[0012] Furthermore, the hardware connection information check includes a connection line check and an interface matching check; the hardware status information check includes a power module check, a signal processing module check and an actuator check.

[0013] Furthermore, the signal parameter information includes a signal type setting, a signal frequency setting, a signal amplitude setting, and a signal phase setting; and the load parameter information setting includes a load impedance setting, a load power setting, and a load change rate setting.

[0014] Furthermore, the simulated signal information includes grid voltage fluctuations, frequency changes, harmonic signals and fault signals; and the simulated load information includes load characteristics and load dynamic changes.

[0015] Furthermore, a performance test is performed on the excitation system limiter based on the first inspection result and the first setting result, and the performance test content includes voltage regulation performance test, excitation current stability test, load mutation response test, frequency change response test, overcurrent protection test, overvoltage protection test, underexcitation protection test and harmonic suppression performance test.

[0016] Furthermore, the content and method of adjusting the first test result according to the first simulation result include signal environment difference adjustment, load environment difference adjustment, sensor error calibration and environmental factor compensation.

[0017] Furthermore, the test report content includes the equipment's test identification, test standards, module execution records, data collection and processing instructions, limiter performance indicator presentation, standard comparison analysis, comprehensive performance evaluation, and improvement suggestions.

[0018] On the other hand, the present application also provides a method for testing the performance of an excitation system limiter, the method comprising:

[0019] Performing a hardware check on the excitation system limiter to obtain a first check result, wherein the first check result includes hardware connection information and hardware status information;

[0020] Performing parameter setting on the excitation system limiter to obtain a first setting result, wherein the first setting result includes signal parameter information and load parameter information;

[0021] Simulating a test environment to obtain a first simulation result, where the first simulation result includes simulation signal information and simulation load information;

[0022] performing a performance test on the excitation system limiter according to the first inspection result and the first setting result to obtain a first test result;

[0023] Adjusting the first test result according to the first simulation result to obtain a second test result;

[0024] Determine whether the second test result meets the preset performance standard according to the preset test standard, and generate a test report.

[0025] In a third aspect, the present application provides an electronic device comprising a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and runnable on the processor, wherein the transceiver, the memory, and the processor are connected via the bus, and the computer program implements the steps of any one of the above methods when executed by the processor.

[0026] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps in any one of the above methods when executed by a processor.

[0027] Compared with the prior art, the present invention has the following advantages: the various modules in the system work closely together to realize the automation of the test process; the hardware inspection module automatically completes the inspection of the excitation system limiter hardware, and the parameter setting module automatically performs parameter settings, avoiding the tedious steps of manual operation and reducing test time; because the system can automatically complete multiple test tasks, it avoids the frequent replacement of test equipment and adjustment of test parameters between tests, thereby greatly improving test efficiency and reducing test complexity; the system adopts automated testing, reducing the links of manual operation and manual data recording, avoiding test result errors caused by human factors, and making the test results more accurate and reliable;

[0028] The environmental simulation module can simulate the complex working conditions in the actual operation of the power system, generate simulated signal information and simulated load information, and provide a more realistic test environment for performance testing, so as to conduct a comprehensive and accurate evaluation of the performance of the limiter; the hardware inspection module can fully obtain hardware connection information and hardware status information, and the parameter setting module can accurately set signal parameters and load parameters. This information provides a more comprehensive basis for performance testing and helps to discover the performance of the limiter under different conditions; the result adjustment module adjusts the test results according to the simulation results, and the report generation module makes judgments and generates reports according to preset standards, which can comprehensively consider various factors and conduct a more comprehensive and in-depth evaluation of the performance of the limiter; the report generation module can automatically generate test reports according to preset test standards, providing a clear and standardized basis for subsequent analysis and decision-making, which helps to discover problems in a timely manner and take corresponding measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the present invention;

[0030] Figure 2 It is a flow chart of the performance test method of the excitation system limiter. DETAILED DESCRIPTION

[0031] In the description of this application, those skilled in the art should know that this application can be implemented as a method, an apparatus, an electronic device, and a computer-readable storage medium. Therefore, this application can be specifically implemented in the following forms: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software. In addition, in some embodiments, this application can also be implemented in the form of a computer program product in one or more computer-readable storage media, wherein the computer-readable storage medium contains computer program code.

[0032] The computer-readable storage medium may be any combination of one or more computer-readable storage media. Computer-readable storage media include: electrical, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or components, or any combination thereof. More specific examples of computer-readable storage media include: portable computer disks, hard disks, random access memories, read-only memories, erasable programmable read-only memories, flash memory, optical fibers, optical disc read-only memories, optical storage devices, magnetic storage devices, or any combination thereof. In this application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device, or component.

[0033] The acquisition, storage, use, and processing of data in this application's technical solution comply with relevant national laws.

[0034] This application describes the provided methods, devices, and electronic devices through flowcharts and / or block diagrams.

[0035] It should be understood that each block in the flowchart and / or block diagram, as well as combinations of blocks in the flowchart and / or block diagram, can be implemented by computer-readable program instructions. These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine. These computer-readable program instructions are executed by the computer or other programmable data processing device to produce a device that implements the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0036] These computer-readable program instructions may also be stored in a computer-readable storage medium that enables a computer or other programmable data processing device to operate in a specific manner. In this way, the instructions stored in the computer-readable storage medium produce an instruction device product that implements the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0037] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device, so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby enabling the instructions executed on the computer or other programmable data processing apparatus to provide a process that implements the functions / operations specified by the blocks in the flowchart and / or block diagram.

[0038] The present application is described below in conjunction with the accompanying drawings.

[0039] like Figure 1 As shown, the excitation system limiter performance test system of the present invention specifically includes the following modules:

[0040] a hardware inspection module, performing a hardware inspection on the excitation system limiter to obtain a first inspection result, wherein the first inspection result includes hardware connection information and hardware status information;

[0041] a parameter setting module, performing parameter setting on the excitation system limiter to obtain a first setting result, wherein the first setting result includes signal parameter information and load parameter information;

[0042] An environment simulation module simulates a test environment to obtain a first simulation result, wherein the first simulation result includes simulation signal information and simulation load information;

[0043] a performance testing module, performing a performance test on the excitation system limiter according to the first inspection result and the first setting result to obtain a first test result;

[0044] a result adjustment module, adjusting the first test result according to the first simulation result to obtain a second test result;

[0045] The report generation module determines whether the second test result meets the preset performance standard according to the preset test standard and generates a test report.

[0046] In this embodiment, the various modules in the system work closely together to achieve automation of the test process; the hardware inspection module automatically completes the inspection of the excitation system limiter hardware, and the parameter setting module automatically sets the parameters, avoiding the tedious steps required for manual operation and reducing test time; because the system can automatically complete multiple test tasks, it avoids the frequent replacement of test equipment and adjustment of test parameters between tests, thereby greatly improving test efficiency and reducing test complexity; the system adopts automated testing, reducing the links of manual operation and manual data recording, avoiding test result errors caused by human factors, and making the test results more accurate and reliable;

[0047] The environmental simulation module can simulate the complex working conditions in the actual operation of the power system, generate simulated signal information and simulated load information, and provide a more realistic test environment for performance testing, so as to conduct a comprehensive and accurate evaluation of the performance of the limiter; the hardware inspection module can fully obtain hardware connection information and hardware status information, and the parameter setting module can accurately set signal parameters and load parameters. This information provides a more comprehensive basis for performance testing and helps to discover the performance of the limiter under different conditions; the result adjustment module adjusts the test results according to the simulation results, and the report generation module makes judgments and generates reports according to preset standards, which can comprehensively consider various factors and conduct a more comprehensive and in-depth evaluation of the performance of the limiter; the report generation module can automatically generate test reports according to preset test standards, providing a clear and standardized basis for subsequent analysis and decision-making, which helps to discover problems in a timely manner and take corresponding measures.

[0048] More specifically for the hardware inspection module:

[0049] The hardware connection information check includes connection line check and interface matching check;

[0050] The connection line inspection includes checking the integrity of the electrical connections and the reliability of the connections. Use professional line detection equipment, such as a multimeter and insulation resistance tester, to check all electrical connection lines inside the excitation system limiter and with external equipment. Check whether there are any problems such as open circuits, short circuits, and poor contact. Check whether the connections of each connecting component are firm. Gently shake the connection parts manually to observe whether there is any looseness. For important connection parts, you can also use tools such as torque wrenches to check whether the tightening torque of the connecting bolts meets the requirements to prevent problems such as increased contact resistance and heat caused by loose connections, which may affect the normal operation of the equipment.

[0051] Interface compatibility checks include checking the physical interface matching and communication protocol compatibility. Checking whether the physical interfaces between the excitation system limiter and other devices match, including whether the interface shape, size, and pin definition comply with relevant standards and design requirements. Although communication protocol compatibility is more of a software-level check, it is also necessary to confirm whether the hardware interface supports the corresponding communication protocol during the hardware check phase. By consulting the device's technical documentation and communication protocol specifications, check whether the hardware interface's electrical characteristics, signal levels, transmission rates, and other parameters are consistent with the communication protocol requirements, laying the foundation for subsequent communication testing and functional verification.

[0052] The hardware status information check includes power module check, signal processing module check and actuator check;

[0053] The power module inspection includes input voltage detection and output voltage and current detection. Use a voltmeter to measure the input voltage of the excitation system limiter power module to check whether it is within the specified range. If the input voltage is too high or too low, it may cause the power module to malfunction or even damage the equipment. Check whether the output voltage and current of the power module are stable and meet the design requirements. By connecting the load equipment to simulate the actual working conditions, use instruments such as multimeters and ammeters to measure the output voltage and current values. At the same time, observe the fluctuations of the output voltage and current to determine whether the voltage and current stabilization performance of the power module is good.

[0054] Signal processing module inspection includes checking the signal amplification and filtering functions as well as the accuracy of analog-to-digital conversion and digital-to-analog conversion. Input a standard signal to the signal processing module and use an oscilloscope or other instrument to measure the amplitude and waveform of the output signal. Check whether the signal processing module can correctly amplify and filter the input signal, whether the amplitude of the output signal meets expectations, and whether the waveform is distorted. If the signal processing module includes analog-to-digital conversion and digital-to-analog conversion functions, a conversion accuracy check is required. Input a known analog signal, measure the digital value after analog-to-digital conversion, then convert it back to an analog signal through digital-to-analog conversion, compare it with the original input signal, and calculate the conversion error. Ensure that the conversion accuracy meets system requirements to ensure the accuracy of signal processing.

[0055] The inspection of the actuator includes the action response check and the contact status check; for the actuator in the excitation system limiter, it is activated by the control signal and the response of the actuator is observed; check whether the actuator can act promptly and accurately according to the control instruction, and whether the action time meets the requirements; check the contact condition of the actuator contacts, including the contact resistance and contact pressure; use instruments such as micro-ohmmeter to measure the contact resistance of the contacts and ensure that its value is within the specified range to ensure good electrical connection; at the same time, observe whether the contacts are worn, ablated, etc., and replace or repair them in time if necessary.

[0056] In this embodiment, by using professional line detection equipment, a comprehensive inspection of the integrity and reliability of the electrical connection is carried out, and problems such as open circuit, short circuit, poor contact, etc. in the line can be discovered in time; the interface matching inspection includes physical interface matching and communication protocol compatibility inspection; by checking whether the shape, size, pin definition, etc. of the physical interface meet the standards and design requirements, and whether the hardware interface supports the corresponding communication protocol, communication failures and equipment failures caused by interface mismatch can be avoided; the power module inspection detects the input voltage, output voltage and current to ensure that the power module works within the normal range; if the input voltage is too high or too low, it may Cause the power module to work abnormally, affect the stability and reliability of the equipment, and even damage the equipment; unstable output voltage and current will also have an adverse effect on the normal operation of the equipment; the signal processing module inspection includes signal amplification and filtering function inspection as well as analog-to-digital conversion and digital-to-analog conversion accuracy inspection; through these inspections, it can be ensured that the signal processing module can correctly amplify, filter and convert the input signal to ensure the accuracy and reliability of the signal; if there is a problem with the signal processing module, it may cause signal distortion, excessive noise, conversion error and other problems, affecting the performance and control accuracy of the equipment; the actuator inspection includes action response inspection and contact status inspection; by checking the actuator The action response and contact status can ensure that the actuator can act promptly and accurately according to the control instructions, ensuring the normal control function of the equipment; the detailed hardware connection information and hardware status information obtained by the hardware inspection module provide an accurate data basis for subsequent parameter setting, performance testing and other steps; only when the hardware status is normal and the connection is reliable, the subsequent test results will be reliable and have reference value; through a comprehensive inspection of the hardware, potential hardware problems can be discovered and eliminated in time, reducing test errors caused by hardware failures; by checking and adjusting the power module, the accuracy and reliability of the test can be improved; by regularly checking the excitation system limiter Hardware inspection can promptly identify potential hardware problems and take appropriate measures to repair or replace them, thereby preventing equipment failures. It helps reduce equipment maintenance costs and downtime, and improves equipment availability and reliability. Good hardware status is the basis for long-term stable operation of equipment. Comprehensive inspection and maintenance of hardware through the hardware inspection module can ensure that all components of the equipment are in good working condition, reduce equipment wear and aging, and extend the service life of the equipment. Hardware failures may cause safety accidents and cause serious harm to personnel and equipment. Strict inspection of hardware through the hardware inspection module can promptly identify and eliminate safety hazards and reduce safety risks.

[0057] For the parameter setting module, more specifically:

[0058] The first setting result includes signal parameter information and load parameter information;

[0059] The signal parameter information includes:

[0060] Signal type setting: Set the required signal for the test based on the signal type that the excitation system limiter may receive and process in actual operation; different types of signals can simulate the input conditions of the limiter under different working conditions;

[0061] Signal frequency setting: In motor excitation control, the signal frequency affects the dynamic response of the system; the parameter setting module can set the signal frequency within a certain frequency range according to test requirements;

[0062] Signal amplitude setting: Set the signal amplitude to simulate input signals of different strengths. For example, when testing the overload protection function of the limiter, set a larger amplitude signal to observe whether it can limit the excitation current in time. When performing routine performance tests, set the amplitude signal within the normal operating range.

[0063] Signal phase setting: For multi-phase excitation systems, signal phase is an important parameter. By setting the phase difference between different signals, the phase relationship of multi-phase current and voltage in actual operation is simulated, and the performance of the limiter under complex phase conditions is tested.

[0064] The load parameter information setting includes:

[0065] Load impedance setting: According to the load conditions that may be connected during actual operation of the generator, the load impedance value, including resistance value, inductance value and capacitance value, can be set in the parameter setting module. Different load impedance combinations can simulate loads of different properties and test the limiter's ability to regulate the excitation current under various loads.

[0066] Load power setting: set the load power to simulate the operation of the generator under different power output conditions;

[0067] Load change rate setting: To simulate the dynamic change of load in actual operation, set the load change rate parameters.

[0068] In this embodiment, through the refined setting of signal parameters and load parameters, various complex working conditions in the actual operation of the power system can be simulated; by setting different signal frequencies, amplitudes and phases, as well as load impedance, power and change rate, the working state of the generator in various scenarios such as light load, heavy load, and load mutation can be truly restored, which changes the situation in which traditional tests are difficult to simulate complex working conditions, making the test more in line with actual operation needs, thereby comprehensively and accurately evaluating the performance of the limiter; with the help of human-computer interaction interface, data transmission and control, and parameter verification functions, the parameters can be set quickly and accurately; and the frequent adjustments in traditional manual operations are avoided. The module eliminates inefficiencies caused by test equipment and parameters, while reducing human setting errors and test result errors. The standardized parameter setting process also improves the repeatability and comparability of test results, ensuring that each test can be performed under consistent conditions, enhancing the credibility of the test results. The module can flexibly adjust parameters according to different test requirements. Whether it is a special test for specific performance indicators or a comprehensive integrated test, it can be achieved by setting appropriate parameters. The detailed and accurate parameter setting results are closely related to the performance test results. In the subsequent result analysis, the performance of the limiter under specific parameter conditions can be clearly understood.

[0069] For the environmental simulation module, more specifically:

[0070] The analog signal information includes:

[0071] Grid voltage fluctuations. In actual power systems, grid voltage can fluctuate due to factors such as load changes and faults. The environmental simulation module can generate voltage fluctuation signals of different amplitudes and frequencies, such as simulating voltage swells, sags, and flicker. This tests the excitation system limiter's ability to regulate excitation current when the grid voltage is unstable, ensuring it can maintain stable generator terminal voltage.

[0072] Frequency changes: The operating frequency of the power system may shift due to factors such as load imbalance and power generation changes. The module can simulate frequency changes within a certain range, test the response performance of the limiter under frequency fluctuation conditions, and verify whether it can ensure the normal operation of the generator under different frequency conditions.

[0073] Harmonic signals: Due to the presence of nonlinear loads in the power system, harmonics are generated in the power grid. The environmental simulation module can generate analog signals containing harmonics of different orders, simulate the harmonic pollution environment, and test the excitation system limiter's ability to suppress harmonics and its working stability in a harmonic environment.

[0074] Fault signals: Common fault signals in power systems include voltage and current signals generated by short circuits, two-phase short circuits, and single-phase ground short circuits. By simulating these fault signals, the limiter's rapid response and protection capabilities under fault conditions are tested, and its ability to respond to system faults is evaluated.

[0075] The simulated load information includes:

[0076] Load characteristics: According to the characteristics of different types of loads in the actual power system, the environmental simulation module can adjust the impedance parameters of the simulated load to simulate load conditions with different power factors;

[0077] Dynamic load changes simulate the dynamic changes of the load in actual operation, such as sudden increase, sudden decrease, and periodic changes of the load; by setting parameters such as the load power change rate and change amplitude, the load is simulated from no-load to full-load, from full-load to no-load, and periodic fluctuations. The tracking and adjustment capabilities of the excitation system limiter to dynamic load changes are tested to verify whether it can quickly stabilize the output voltage and excitation current of the generator.

[0078] In this embodiment, the environmental simulation module can simulate a variety of complex analog signal information such as grid voltage fluctuations, frequency changes, harmonic signals, fault signals, and simulated load information with different load characteristics and dynamic changes, and can highly restore various working conditions in the actual operation of the power system; compared with the defect that traditional testing methods are difficult to simulate complex working conditions, this module allows the excitation system limiter to be tested in an environment close to the real environment, thereby achieving a comprehensive evaluation of its performance and avoiding the problem of incomplete performance evaluation due to a single test scenario; by targeted simulation of grid voltage surges and dips, frequency offsets, harmonic pollution, system failures and other conditions, the limiter's ability to adjust the excitation current to maintain voltage stability when the grid is unstable, its response performance under frequency fluctuation conditions, its ability to suppress harmonics and its ability to respond to faults can be accurately tested. Rapid response and protection functions; at the same time, simulating load characteristics and dynamic changes can effectively test the limiter's ability to track and adjust load changes; because the simulated environment is close to the actual operating conditions, the test results can better reflect the performance of the limiter in real scenarios, avoiding test errors caused by the disconnection between traditional tests and reality, and greatly improving the accuracy and reliability of the test; the limiter optimized and improved based on the test results of this module can better cope with complex working conditions after being put into actual use, reduce the risks of equipment damage and system instability caused by substandard performance, and ensure the safe and reliable operation of the power system; the environmental simulation module provides R&D personnel with a wealth of test scenarios and data, which helps to deeply analyze the performance characteristics and potential problems of the limiter under different working conditions, so as to carry out targeted technical improvements and optimized designs.

[0079] For the performance testing module, more specifically:

[0080] A performance test is performed on the excitation system limiter according to the first inspection result and the first setting result, wherein the performance test includes:

[0081] The voltage regulation performance test simulates the steady-state operation of the generator based on the signal and load parameters set by the parameter setting module and inputs the corresponding signal to the excitation system limiter. By measuring the generator terminal voltage, the voltage regulation capability of the limiter is evaluated to check whether it can stabilize the voltage within the specified range.

[0082] The excitation current stability test monitors the fluctuation of the excitation current during steady-state operation to determine whether the limiter can maintain a stable output of the excitation current. By recording the average value and fluctuation range of the excitation current, the voltage stabilization performance of the limiter is analyzed. If the excitation current fluctuation is too large, the normal operation and life of the generator may be affected.

[0083] The load sudden response test uses the environmental simulation module to simulate sudden increases or decreases in load conditions to observe the response speed and adjustment ability of the excitation system limiter when the load changes. At the moment of the load sudden change, the change curves of the generator terminal voltage and excitation current are measured, and indicators such as voltage recovery time and overshoot are calculated to evaluate whether the limiter can quickly stabilize the voltage and current to ensure that the generator can continue to operate normally under load changes.

[0084] Frequency change response test simulates the situation where the power system frequency shifts and tests the limiter's response to frequency changes. By changing the frequency of the input signal, it is observed whether the limiter can adjust the excitation current in time to maintain the stability of the generator's output voltage. At the same time, the operating status of the generator during the frequency change process is analyzed to evaluate the limiter's adaptability under frequency fluctuation conditions.

[0085] Overcurrent protection test: By setting parameters, the excitation current exceeds the overcurrent protection threshold of the limiter. The test is to see whether the limiter can trigger the overcurrent protection action in time, cut off or limit the excitation current, and protect the generator and related equipment from damage. The test is also to check whether the response time of the protection action meets the design requirements, and whether the limiter can automatically reset or manually reset to the normal working state after the protection action.

[0086] Overvoltage protection test simulates the situation of excessive voltage at the generator end and tests the overvoltage protection function of the limiter. When the voltage exceeds the set overvoltage protection value, it observes whether the limiter can quickly take measures to reduce the excitation current and restore the voltage to a safe range. At the same time, it verifies the accuracy and reliability of the overvoltage protection action to avoid equipment failure due to false or non-action of the protection.

[0087] Under-excitation protection test: Test the under-excitation protection function of the limiter by reducing the excitation current to simulate the under-excitation working condition; check whether the limiter can send out an alarm signal or take protective measures in time when the excitation current is too low to prevent the generator from entering an unstable operating state or demagnetization fault;

[0088] The harmonic suppression performance test measures the harmonic content of the excitation system limiter's output signal when inputting an analog signal containing harmonics to evaluate its harmonic suppression capability. By calculating indicators such as the total harmonic distortion rate, the limiter's operating performance in a harmonic environment is analyzed to determine whether it can effectively reduce the impact of harmonics on the generator and power system.

[0089] In this embodiment, the voltage regulation performance test and the excitation current stability test ensure the stability of the terminal voltage and excitation current of the generator during steady-state operation, providing stable power output for the power system; the load mutation response test and the frequency change response test ensure that the generator can quickly stabilize the voltage and current when the load and frequency change, and maintain the dynamic stability of the system; the overcurrent, overvoltage, and underexcitation protection test triggers the protection mechanism in time under abnormal working conditions to avoid equipment damage and system instability, and comprehensively guarantee the safe and reliable operation of the power system; this module carries out special tests on the core performance indicators of the excitation system limiter, and changes the traditional test caused by the lack of systematicity and precision by scientifically setting test conditions, accurately measuring data, and rigorously calculating performance indicators. The performance test module can make a quantitative and accurate evaluation of the limiter's performance with the help of automated test control and high-precision data acquisition and monitoring equipment to realize the automation of the test process, reduce manual operation links, and reduce test errors caused by human factors. At the same time, it avoids the tedious process of frequent equipment replacement and parameter adjustment in traditional testing, greatly improves test efficiency, and ensures that the test results are true, reliable and repeatable. The harmonic suppression performance test and other contents can deeply analyze the performance of the limiter under complex working conditions, help R&D personnel discover the deficiencies in product design and function, and thus carry out targeted technical improvements and optimizations, and promote the continuous upgrading of excitation system limiter technology.

[0090] For the result adjustment module, more specifically:

[0091] The content and method of adjusting the first test result according to the first simulation result include:

[0092] Adjustment for signal environment differences: In actual power system operation, the signal environment is complex and changeable, including grid voltage fluctuations, frequency changes, and harmonic interference. The result adjustment module will correct the performance indicators affected by signal factors in the first test results based on the different signal conditions simulated by the environmental simulation module. If the simulation results show the presence of high-order harmonic interference, and the first test results do not consider the impact of harmonics on limiter performance, the module will adjust related indicators such as voltage regulation performance and excitation current stability based on the harmonic characteristics and the limiter's response model in the harmonic environment, so that they are closer to the performance under actual operating conditions.

[0093] Adjustment for load environment differences: Based on the different load characteristics and dynamic changes in the simulated load information, the module re-evaluates the limiter's response performance under load changes in the first test result. If the simulated load experiences a sudden increase, and the first test result does not fully reflect the limiter's dynamic regulation effect in this situation, the adjustment module will adjust indicators such as voltage recovery time and overshoot in the load sudden change response test based on parameters such as the amplitude and rate of the simulated load increase, combined with the limiter's dynamic response characteristics, to accurately reflect the limiter's actual performance under actual load change conditions.

[0094] Sensor error calibration: During performance testing, sensors used to collect parameters such as voltage, current, and frequency may have certain measurement errors. The result adjustment module uses the standard simulated signal and load information provided by the environmental simulation module to calibrate the data collected by the sensors. By comparing the simulated standard voltage signal with the actual voltage data collected by the sensor, the sensor error value is calculated and the relevant data in the first test result is corrected to improve the data accuracy.

[0095] Environmental factor compensation: Environmental factors such as temperature and humidity in the actual operating environment will affect the performance of the excitation system limiter; although it is difficult to fully simulate these environmental factors in performance testing, the result adjustment module can compensate for performance changes caused by environmental factors based on historical data and theoretical models.

[0096] In this embodiment, by adjusting the difference in signal environment and the difference in load environment, the complex and changeable signal conditions and load changes in the actual power system are fully considered, and the deviation in the first test result caused by the idealization of the test environment is corrected, so that the test result can truly reflect the performance of the excitation system limiter in actual operation; avoid the problem of inaccurate performance evaluation of the limiter due to the inconsistency between the test environment and the actual working conditions, and provide a reliable basis for subsequent product optimization and operation and maintenance; the sensor error calibration function uses standard analog signals and load information to calibrate the data collected by the sensor during the performance test, effectively eliminating the influence of sensor measurement errors on the test results, and greatly improving the accuracy of the test data; this helps to accurately evaluate the various performance indicators of the limiter, Reduce performance misjudgment due to data errors, making test results more convincing and valuable for reference; the environmental factor compensation mechanism fully considers the impact of environmental factors such as temperature and humidity in the actual operating environment that are difficult to fully simulate in the test on the performance of the limiter, and compensates through historical data and theoretical models, filling the lack of environmental factor considerations in the test process; further improves the test evaluation system, making the test results more comprehensive and scientific, and able to more accurately predict the operating performance of the limiter in actual complex environments; accurate and true test results can help R&D personnel more clearly understand the advantages and disadvantages of the excitation system limiter under actual working conditions, and provide precise guidance for product optimization and improvement; avoid R&D direction errors caused by test result deviations, improve R&D efficiency, and reduce R&D costs.

[0097] More specifically for the report generation module:

[0098] The test report includes:

[0099] The test identification of the equipment records the basic information of the tested excitation system limiter, such as model, specification, production number, etc., to clearly identify the test object; at the same time, mark the test time, test personnel, test environment and other test-related identification information to ensure the traceability of the test process;

[0100] Test standards: List the industry standards, internal company specifications, and preset performance standards followed in this test, and explain the basis for judging the test results;

[0101] Module execution record, briefly describing the execution process of the hardware inspection module, parameter setting module, environmental simulation module, performance test module, and result adjustment module, including key operation steps, set parameter values, simulated working conditions, etc., so that the report reader can understand the overall test process;

[0102] Data collection and processing instructions, which describe the data collection method and parameter types collected during the performance test, as well as the data calibration and compensation processing methods of the result adjustment module, reflecting the scientific nature and accuracy of the test data;

[0103] Limiter performance indicators are presented in the form of tables and charts, showing various performance indicators in the second test results, such as voltage regulation accuracy, excitation current stability, load sudden change response time, protection function trigger threshold, etc., to intuitively present the performance of the limiter;

[0104] Standard comparative analysis: compare the test results with the preset performance standards item by item, clearly marking whether each indicator meets the standard; for indicators that do not meet the standard, analyze the possible reasons, such as hardware defects, unreasonable parameter settings, etc.

[0105] Comprehensive performance evaluation: Based on the test results, a comprehensive evaluation conclusion of the excitation system limiter performance is given to determine whether it meets the expected design requirements and can be put into actual use;

[0106] Improvement suggestions: Based on the problems and deficiencies found in the test, specific improvement suggestions are put forward, including hardware optimization directions, parameter adjustment plans, follow-up test priorities, etc., to provide reference for product upgrades and improvements.

[0107] In this embodiment, the tested equipment and test identification are recorded in detail to ensure that each link of the test process can be accurately traced, which is convenient for subsequent review and problem location; the test basis and standards are clearly listed so that the test process has rules to follow and the result judgment has a basis to rely on, which improves the standardization and authority of the test work and avoids result disputes caused by vague standards; the detailed record of the execution process of each module and the description of the data collection and processing methods enable the report readers to clearly understand the overall process and data source of the test, eliminating doubts caused by lack of understanding of the test process; the credibility of the test results is greatly enhanced through the open and transparent presentation of information, whether it is internal R&D personnel, quality management personnel, or external regulatory agencies and cooperative customers, they can all give full trust to the test results; with a variety of expressions The performance indicators of the limiter are presented in the form of grids and charts, which makes complex performance data intuitive and facilitates the rapid capture of key performance information; combined with standard comparative analysis, the compliance status is clearly marked and the reasons for non-compliance are deeply analyzed, so that R&D personnel and technical personnel can quickly locate the performance shortcomings of the limiter, provide precise direction for optimization and improvement, avoid blind adjustments, and improve R&D efficiency; comprehensive performance evaluation gives clear product performance conclusions, which directly provides a decision-making basis for whether the product can be put into use; improvement suggestions are based on the problems found in the test, and specific optimization plans are proposed from multiple dimensions such as hardware, parameters, and testing, which promote the R&D team to carry out product upgrades in a targeted manner, accelerate the product iteration process, and help continuously improve the excitation system limiter technology to better meet the power system's requirements for high performance and high reliability of equipment.

[0108] like Figure 2 As shown, the excitation system limiter performance testing method of the present invention specifically includes the following steps:

[0109] Performing a hardware check on the excitation system limiter to obtain a first check result, wherein the first check result includes hardware connection information and hardware status information;

[0110] Performing parameter setting on the excitation system limiter to obtain a first setting result, wherein the first setting result includes signal parameter information and load parameter information;

[0111] Simulating a test environment to obtain a first simulation result, where the first simulation result includes simulation signal information and simulation load information;

[0112] performing a performance test on the excitation system limiter according to the first inspection result and the first setting result to obtain a first test result;

[0113] Adjusting the first test result according to the first simulation result to obtain a second test result;

[0114] Determine whether the second test result meets the preset performance standard according to the preset test standard, and generate a test report.

[0115] This method can realize test automation, without the need for frequent manual operation of equipment and recording of data, thus avoiding the time consumption caused by manual operation, significantly shortening the overall test cycle, and greatly improving test efficiency; from hardware inspection to parameter setting, to environmental simulation, performance testing, result adjustment and report generation, each step is closely linked and automatically advanced, without the need for manual intervention to switch between different test links, reducing the complexity and time cost of the test, making the test process smoother and more efficient; traditional manual testing is easily affected by subjective factors such as operator experience and proficiency, resulting in large errors in test results; this method adopts an automated process and strictly follows the preset steps, reducing the interference of human factors in the test process and ensuring the accuracy and reliability of test data; during the test process, it can automatically and accurately collect various data, and process and analyze them according to the established algorithm, avoiding manual reading, recording and The method can reduce the possible errors in calculation and improve the accuracy of the test results; the method generates a variety of complex working conditions including simulated signal information and simulated load information by simulating the test environment; under the simulated complex working conditions, the various performance indicators of the excitation system limiter are comprehensively tested, which can accurately discover the performance characteristics and potential problems of the limiter under different conditions, and provide a more comprehensive and accurate basis for the performance optimization and improvement of the limiter; according to the preset test standards, the method can automatically judge the adjusted second test results to determine whether the limiter performance meets the requirements, avoiding the subjectivity and uncertainty of manual judgment, and making the test result judgment more scientific and objective; it automatically generates a detailed test report containing test process information, various test data, result judgment conclusions, analysis and suggestions, etc., providing intuitive and clear test result feedback for testers and relevant technical personnel.

[0116] In addition, the present application also provides an electronic device, including a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and runnable on the processor. The transceiver, the memory, and the processor are respectively connected via a bus. When the computer program is executed by the processor, each process of the above-mentioned method embodiment for controlling output data is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0117] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An excitation system limiter performance test system, characterized in that: The system comprises: a hardware inspection module, performing a hardware inspection on the excitation system limiter to obtain a first inspection result, wherein the first inspection result includes hardware connection information and hardware status information; a parameter setting module, performing parameter setting on the excitation system limiter to obtain a first setting result, wherein the first setting result includes signal parameter information and load parameter information; An environment simulation module simulates a test environment to obtain a first simulation result, wherein the first simulation result includes simulation signal information and simulation load information; a performance testing module, performing a performance test on the excitation system limiter according to the first inspection result and the first setting result to obtain a first test result; a result adjustment module, adjusting the first test result according to the first simulation result to obtain a second test result; The report generation module determines whether the second test result meets the preset performance standard according to the preset test standard and generates a test report.

2. The excitation system limiter performance test system according to claim 1, characterized in that: The hardware connection information check includes a connection line check and an interface matching check; the hardware status information check includes a power module check, a signal processing module check and an actuator check.

3. The excitation system limiter performance test system according to claim 1, characterized in that: The signal parameter information includes signal type setting, signal frequency setting, signal amplitude setting and signal phase setting; the load parameter information setting includes load impedance setting, load power setting and load change rate setting.

4. The excitation system limiter performance test system according to claim 1, characterized in that: The simulated signal information includes grid voltage fluctuations, frequency changes, harmonic signals and fault signals; the simulated load information includes load characteristics and load dynamic changes.

5. The excitation system limiter performance test system according to claim 1, characterized in that: The excitation system limiter is subjected to a performance test based on the first inspection result and the first setting result, wherein the performance test includes a voltage regulation performance test, an excitation current stability test, a load mutation response test, a frequency change response test, an overcurrent protection test, an overvoltage protection test, an underexcitation protection test, and a harmonic suppression performance test.

6. The excitation system limiter performance test system according to claim 1, characterized in that: The content and method of adjusting the first test result according to the first simulation result include signal environment difference adjustment, load environment difference adjustment, sensor error calibration and environmental factor compensation.

7. The excitation system limiter performance test system according to claim 1, characterized in that: The test report includes the equipment's test identification, test standards, module execution records, data collection and processing instructions, limiter performance indicator presentation, standard comparison analysis, comprehensive performance evaluation, and improvement suggestions.

8. A method for testing the performance of an excitation system limiter, characterized in that: The method comprises: Performing a hardware check on the excitation system limiter to obtain a first check result, wherein the first check result includes hardware connection information and hardware status information; Performing parameter setting on the excitation system limiter to obtain a first setting result, wherein the first setting result includes signal parameter information and load parameter information; Simulating a test environment to obtain a first simulation result, where the first simulation result includes simulation signal information and simulation load information; performing a performance test on the excitation system limiter according to the first inspection result and the first setting result to obtain a first test result; Adjusting the first test result according to the first simulation result to obtain a second test result; Determine whether the second test result meets the preset performance standard according to the preset test standard, and generate a test report.

9. An electronic device for testing the performance of an excitation system limiter, comprising a bus, a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the transceiver, the memory, and the processor are connected via the bus, and wherein: When the computer program is executed by the processor, the steps of the system according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the system according to any one of claims 1 to 7 are implemented.

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