Power supply aging test system

Abstract

The invention relates to the field of power supply testing, in particular to a power supply aging test system which comprises a power supply aging test system and a power supply aging test method. The system comprises an industrial control computer, an aging rack, an energy recovery module, an electronic load module and a closed test cabin, the industrial control computer controls aging test parameters and data acquisition, the multi-channel electronic load module is arranged in the aging rack, the energy recovery module converts electric energy into energy which can be stored or fed back to a power grid, and the closed test cabin is integrated with a temperature and humidity control unit. The test method comprises the steps of connecting a to-be-tested power supply to equipment, setting related parameters, starting a test, monitoring data, performing anomaly detection, generating a test report and the like. The technical effects of multi-channel synchronous test, energy recovery, accurate temperature and humidity control, accurate anomaly detection, detailed test report generation, remote monitoring support and the like are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of power supply testing, and in particular to a power supply aging testing system. Background Art

[0002] In numerous fields, including the manufacturing, sales, and repair of electronic measuring instruments, as well as electronic components and electromechanical subassemblies, the performance of power supply products is crucial to the stable operation of various devices. With the advancement of industrial automation and intelligentization, the demand for the quality and reliability of power supply products is becoming increasingly stringent. Burn-in testing, as a key step in evaluating the stability and durability of power supply products, has a direct impact on their quality and market competitiveness due to its accuracy and efficiency. Accurate and efficient burn-in testing can proactively identify potential problems with power supply products, reduce product failure rates in actual use, improve customer satisfaction, and promote the stable development of related industries.

[0003] In traditional power supply product burn-in testing, various test items, such as humidity and temperature testing, are typically performed on separate test fixtures. For example, the power supply product is first placed in a dedicated humidity test fixture for humidity testing, and then transferred to a temperature test fixture for temperature testing. This testing method involves frequent transfer of the product between different fixtures, and each test fixture has its own independent operating procedures and processes, requiring the operator to perform multiple different operational settings.

[0004] However, this existing testing method has significant drawbacks. The cumbersome process of transferring power supply products between different test devices not only consumes significant time and labor, but is also susceptible to interference from external environmental factors during the transfer process, leading to distorted test results. This inability to accurately reflect the true performance of the power supply product makes it difficult to meet current demands for high quality and reliability. Summary of the Invention

[0005] The purpose of this application is to overcome the above technical problems and provide a power supply aging test system. A power supply aging test system, comprising: Industrial computer, at least one burn-in rack, energy recovery module, electronic load module and sealed test chamber; The industrial control computer is connected to the aging rack via a communication interface and is used to control aging test parameters and data collection; The aging rack has a built-in multi-channel electronic load module, each channel is independently connected to the output end of the power supply to be tested, and communicates with the industrial control computer through a parallel RS485 interface; The energy recovery module is electrically connected to the electronic load module and is used to convert the electrical energy output by the power supply under test into energy that can be stored or fed back to the power grid; The sealed test chamber is integrated with a temperature and humidity control unit, including a heating and exhaust system, a circulating fan and a sensor. The temperature and humidity control unit sets constant temperature and humidity values through an industrial control computer and provides real-time feedback and adjustment. The system also includes terminal control software that supports multi-channel synchronous testing, dynamic parameter configuration, and AI analysis of test data. The software calculates energy recovery efficiency using the following formula: η = (P recovery / P input) × 100%; Where η is the recovery efficiency, Precovery is the recovered power, and Pinput is the input power of the power supply to be tested.

[0006] By adopting the above technical solutions, the aging test parameters and data collection are controlled by an industrial control computer, which can accurately control the test process; the aging rack has a built-in multi-channel electronic load module, and each channel is independently connected to the power supply to be tested and communicates with the industrial control computer, which can test multiple power supplies to be tested at the same time; the energy recovery module converts the electrical energy output by the power supply to be tested into energy that can be stored or fed back to the power grid, achieving energy saving and power saving; the closed test chamber integrates a temperature and humidity control unit and can set constant temperature and humidity values and provide real-time feedback and adjustment, which can realize synchronous aging testing of multiple projects; the terminal control software supports multi-channel synchronous testing, dynamic parameter configuration and test data AI analysis, and can also calculate energy recovery efficiency, which improves the test function and ease of use, and facilitates the analysis and processing of test results.

[0007] A power supply aging test method comprises the following steps: S1. Connect the AC input of the power supply to be tested to the AC output socket of the aging rack, connect the output to the copper interface of the electronic load module, and connect the RS485 communication interface to the aging rack in parallel; S2. Start the industrial computer and power cabinet, set the input power supply mode of the aging rack, and set the temperature and humidity target values of the closed test chamber through the touch screen; S3. Select the test model in the terminal software, configure the output voltage, current load value, test time, and upper and lower limits of voltage and current, and dynamically adjust the load power using the following formula: Pload = Vsetting × Isetting; Among them, V setting and I setting are the voltage and current values set by the software respectively; S4. Start the multi-channel aging test. The industrial computer monitors the voltage, current, temperature and humidity data of each channel in real time, and feeds power back to the grid through the energy recovery module. S5. Use machine learning algorithms to detect anomalies in the test data. The test is considered qualified if the following conditions are met: |Vactual - Vset| ≤ ΔVthreshold and |Iactual - Iset| ≤ ΔIthreshold; S6. The test automatically stops after the preset aging time is reached, and a test report is generated that includes energy recovery efficiency, temperature and humidity stability, and channel consistency indicators.

[0008] By adopting the above technical solution, the power supply to be tested can be correctly connected to the test system, the power supply mode of the aging rack and the temperature and humidity target values of the closed test chamber can be set, the load power can be dynamically adjusted according to the software settings, multi-channel aging testing can be achieved and relevant data can be monitored in real time. The consumed electricity can also be fed back to the power grid, and the test data anomalies can be detected and determined to be qualified through machine learning algorithms. Finally, the test is automatically stopped and a test report containing energy recovery efficiency, temperature and humidity stability, and channel consistency indicators is generated, which improves the test function and ease of use, avoids the cumbersome operating procedures and test distortion problems caused by multiple tests being performed on different devices, and achieves the purpose of energy saving.

[0009] Preferably, the temperature and humidity control unit adjusts the heating power and fan speed through a PID algorithm, and its control equation is: u(t) = K_p e(t) + K_i ∫0^te(τ) dτ + K_d (de(t) / dt); Where u(t) is the control output, and e(t) is the deviation between the set value and the actual value of temperature and humidity.

[0010] By adopting the above technical solution and using the PID algorithm to adjust the heating power and fan speed of the temperature and humidity control unit, precise control can be performed based on the deviation between the temperature and humidity set value and the actual value, so that the closed test chamber can more accurately reach and maintain the set constant temperature and humidity values, ensuring the stability of the aging test environment and improving the accuracy of the test results.

[0011] Preferably, the multi-channel test supports the simultaneous access of 30-36 power supplies to be tested, and distributes the power of the electronic load module through a load balancing algorithm.

[0012] By adopting the above technical solution, 30-36 power supplies under test can be aged at once, improving test efficiency. At the same time, the load balancing algorithm is used to distribute the power of the electronic load module to ensure the stability and consistency of the test environment of each power supply under test, making the test results more accurate and reliable.

[0013] Preferably, the energy recovery module uses a bidirectional inverter to convert the electric energy consumed by the electronic load module into alternating current with the same frequency and phase as the power grid.

[0014] By adopting the above technical solution and utilizing the bidirectional inverter of the energy recovery module, the electric energy consumed by the electronic load module can be converted into alternating current with the same frequency and phase as the power grid. During the power supply aging test, part of the consumed electricity can be recovered, achieving the purpose of energy saving and reducing power consumption.

[0015] Preferably, the terminal software supports adding new model parameter templates and associating historical test data through a database to optimize the AI analysis model.

[0016] Using the above technical solution, the AC input of the power supply under test is connected to the AC output socket of the burn-in rack, the output is connected to the copper connector of the electronic load module, and the RS485 communication interface is connected in parallel with the burn-in rack. The industrial control computer and power cabinet are powered on, the input power supply mode of the burn-in rack is set, and the temperature and humidity target values of the sealed test chamber are set via the touch screen. The test model is selected in the terminal software, and the output voltage, current load value, test time, and upper and lower voltage and current limits are configured, and the load power is dynamically adjusted. A multi-channel burn-in test is initiated, with the industrial control computer monitoring the voltage, current, temperature and humidity data of each channel in real time and feeding power back to the grid via the energy recovery module. A machine learning algorithm is used to detect anomalies in the test data, automatically terminating the test after the preset burn-in time is reached, and generating a test report that includes energy recovery efficiency, temperature and humidity stability, and channel consistency metrics. The terminal software supports adding parameter templates for new models and optimizing the AI analysis model by linking historical test data to a database. This facilitates testing of new models, leverages historical data to improve the accuracy of the AI analysis model, enhances the system's versatility and intelligence, makes the test more tailored to the needs of different models, and improves the reliability of test result analysis.

[0017] Preferably, the test report includes the inter-channel difference coefficient, which is calculated as follows: C_v = (σ / μ) × 100%; Among them, σ is the standard deviation of the key parameters of each channel, and μ is the mean.

[0018] By adopting the above technical solution, the power supply to be tested is connected to the aging rack and electronic load module in steps, the industrial control computer and power cabinet are started and the temperature and humidity target values are set, the test parameters are configured in the terminal software and the multi-channel aging test is started, the data is monitored in real time and the power is fed back through the energy recovery module, and the machine learning algorithm is used for anomaly detection. The test is automatically stopped after the preset time is reached. The generated test report contains the inter-channel difference coefficient calculated according to a specific formula, which can intuitively reflect the discrete degree of the key parameters of each channel and help to evaluate the consistency and stability of the power supply aging test.

[0019] Preferably, the anomaly detection uses an isolation forest algorithm to mark data points that exceed the 3σ range as faults.

[0020] By adopting the above technical solution and using the isolation forest algorithm to mark data points outside the 3σ range as faults, anomalies can be detected more accurately in power supply aging tests, improving the accuracy and reliability of test data anomaly detection, thereby ensuring the validity of test results.

[0021] Preferably, the test data is stored using blockchain technology to ensure that the data cannot be tampered with.

[0022] By employing this technical solution, during a power supply burn-in test, the power supply under test is connected according to specific procedures, relevant parameters are set, and a multi-channel burn-in test is initiated. Real-time monitoring and energy recovery are performed, and anomalies in the test data are detected and analyzed. A test report is generated within a preset timeframe. Furthermore, using blockchain technology to store test data ensures that it cannot be tampered with, guaranteeing its authenticity and reliability, and providing an accurate basis for subsequent analysis, evaluation, and decision-making.

[0023] Preferably, the method supports remote monitoring, and the user accesses the real-time test interface of the industrial control computer through an encrypted protocol.

[0024] By adopting the above technical solution, the power supply aging test method has a remote monitoring function. Users can access the real-time test interface of the industrial control computer with the help of an encrypted protocol, so they can easily grasp the test status anytime and anywhere, which improves the convenience and controllability of the test process.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The energy recovery module converts the electrical energy output by the power supply under test into energy that can be stored or fed back to the grid, achieving the goal of energy saving and reducing power consumption; 2. The sealed test chamber is integrated with a temperature and humidity control unit. Constant temperature and humidity values can be set via an industrial computer and adjusted with real-time feedback, enabling simultaneous aging testing of multiple projects and avoiding test distortion caused by transferring products between different test devices. 3. The system supports multi-channel synchronous testing. Multi-channel testing supports the simultaneous access of 30-36 power supplies to be tested, which improves test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a principle block diagram of a power supply aging test system according to an embodiment of the present application.

[0027] Figure 2 This is a flow chart of a power supply aging test according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the Figure 1-Figure 2, further describing the technical solutions in the embodiments of the present invention in detail. The described embodiments are merely possible technical implementations of the present invention, but are not limited thereto. Those skilled in the art can fully combine the embodiments of the present invention, and other embodiments derived without inventive effort are also within the scope of protection of the present invention.

[0029] This application mainly uses integrated equipment and software control to implement power supply aging testing and energy recovery, thereby improving test efficiency, accuracy and energy saving. The following is a further detailed description of this application.

[0030] Example 1: The power supply aging test system provided in the embodiment of the present application includes an industrial control computer, an aging rack, an energy recovery module, an electronic load module and a closed test chamber, wherein the industrial control computer is connected to the aging rack through a communication interface, which can control the aging test parameters and collect data; the aging rack has a multi-channel electronic load module, each channel is independently connected to the output end of the power supply to be tested, and communicates with the industrial control computer via a parallel RS485 interface; the energy recovery module is electrically connected to the electronic load module, and can convert the electric energy output by the power supply to be tested into energy that can be stored or fed back to the power grid; the closed test chamber integrates a temperature and humidity control unit, which sets constant temperature and humidity values through the industrial control computer and provides real-time feedback and adjustment; the system also has terminal control software that supports multi-channel synchronous testing, dynamic parameter configuration and AI analysis of test data, and can calculate energy recovery efficiency through formulas, which enables the power supply aging test to efficiently complete multiple tasks in one system, improves the accuracy and convenience of the test, reduces the impact of manual operation and external interference on the test results, and at the same time realizes energy recovery to achieve the purpose of energy saving.

[0031] Specifically, the industrial control computer includes a host, a display and a communication interface. The host is usually a high-performance computer with powerful computing power and data processing capabilities to cope with complex test parameter control and data acquisition tasks. It can be replaced with a server-level computer to meet the needs of large-scale test data processing. The display is used to display test parameters, data and operation interface, so that the operator can intuitively understand the test status. An LCD or touch screen display can be used. The communication interface is generally a serial port or a network port, which is used to transmit data with the aging rack to ensure stable and efficient communication. Through the precise control of test parameters and rapid processing of collected data by the host, combined with the intuitive display of the display and the stable transmission of the communication interface, effective management of the aging test process is achieved.

[0032] The aging rack includes a frame structure, a multi-channel electronic load module and an RS485 interface. The frame structure plays a supporting and fixing role to ensure the stability of the aging rack. It is generally made of metal materials such as steel or aluminum alloy, and can also be made of high-strength plastic materials. Each channel of the multi-channel electronic load module can be independently connected to the output end of the power supply under test, and can accurately simulate different load conditions to achieve a comprehensive test of the power supply performance. For example, a resistive load or a programmable load can be used to adapt to different types and power levels of power supplies under test. The RS485 interfaces are connected in parallel to facilitate communication with industrial computers to transmit test data and control signals. The frame structure provides a basis for the installation and protection of the electronic load module and the RS485 interface. The electronic load module performs load testing on the power supply under test, and the RS485 interface realizes data transmission. The three work together to ensure that the aging rack can accurately and reliably complete the test task.

[0033] The energy recovery module consists of a bidirectional inverter and a control circuit. The bidirectional inverter is the core component of energy recovery. It converts the electrical energy consumed by the electronic load module into AC power with the same frequency and phase as the grid, enabling energy recovery and reuse. Bidirectional inverters with varying power and efficiency levels are available to meet the needs of different test scales. The control circuit regulates and controls the inverter's operating state to ensure stable and efficient energy recovery. The bidirectional inverter converts electrical energy, while the control circuit provides precise regulation, enabling the energy recovery module to effectively recover the energy consumed during testing, achieving energy savings.

[0034] The electronic load module consists of multiple load cells and copper connectors. Load cells are essential components for simulating loads and can be configured with various load values based on different test requirements, such as resistors, inductors, or capacitors. The copper connectors connect to the output terminals of the power supply under test, ensuring a stable and reliable electrical connection. Multiple load cells work together to simulate various real-world load conditions. Connecting to the power supply under test through the copper connectors provides the necessary load conditions for burn-in testing.

[0035] The sealed test chamber consists of a cabin, a temperature and humidity control unit, and sensors. The cabin is sealed to prevent external environmental factors from interfering with the test and can be made of metal or plastic. The temperature and humidity control unit includes a heating and exhaust system, a circulating fan, and other components. Constant temperature and humidity values can be set via an industrial computer, with real-time feedback and adjustment. The heating and exhaust system regulates the temperature within the cabin, while the circulating fan ensures uniform air flow within the cabin, ensuring a uniform temperature and humidity distribution. Sensors monitor the cabin's temperature and humidity in real time and transmit this data back to the industrial computer. The cabin provides a closed test environment, the temperature and humidity control unit precisely controls environmental parameters, and the sensors monitor environmental data in real time. Together, these three ensure the stability and accuracy of the test environment.

[0036] The terminal control software runs on an industrial computer and features a graphical user interface, facilitating parameter settings and test control. The software supports multi-channel simultaneous testing, enabling simultaneous testing of multiple power supplies, improving test efficiency. It also supports dynamic parameter configuration, allowing for flexible adjustment of test parameters based on diverse testing requirements. Furthermore, the software performs AI-based analysis on test data, using machine learning algorithms to uncover potential insights within the data and assist in determining the performance and quality of the power supply. The software also calculates energy recovery efficiency using a formula, visually demonstrating the effectiveness of energy recovery. Through these features, the terminal control software enables intelligent management and control of the entire test system.

[0037] The implementation principle of this embodiment is as follows: This power supply aging test system realizes high efficiency, accuracy and energy saving of power supply aging test through the coordinated work of various components. The industrial control computer serves as the core control component to control parameters and collect data for the entire test process; the aging rack provides a test platform and load simulation for the power supply to be tested; the energy recovery module recycles the electric energy consumed during the test to achieve energy reuse; the electronic load module simulates different load conditions and conducts a comprehensive test on the power supply; the closed test chamber provides a stable test environment; and the terminal control software performs intelligent management and data analysis on the entire test system. Compared with traditional testing methods, this system reduces manual operation and external interference, improves test efficiency and accuracy, and realizes energy recovery. It has significant practicality and innovation, and provides a better solution for aging testing of power supply products.

[0038] Example 2: The difference between this embodiment and the above embodiment is that the energy recovery module uses a supercapacitor energy storage unit instead of a bidirectional inverter. The supercapacitor energy storage unit can quickly store and release electrical energy, store it when the electronic load module consumes electrical energy, and release it when needed. Supercapacitors have the advantages of fast charging and discharging speed and long life, and can better adapt to fluctuations in electrical energy during the test. The supercapacitor energy storage unit includes multiple supercapacitors and an energy management circuit. Multiple supercapacitors are connected in series or in parallel to form an energy storage array to meet different energy storage needs. The energy management circuit is used to control the charging and discharging process of the supercapacitor to ensure the safety and efficiency of energy storage and release.

[0039] The implementation principle of this embodiment is: an energy recovery module using a supercapacitor energy storage unit, taking advantage of the fast charging and discharging characteristics of the supercapacitor, can more flexibly store and release the electrical energy consumed during the test. During the power aging test, when the electronic load module consumes electrical energy, the supercapacitor energy storage unit quickly stores the electrical energy; when the system needs electrical energy, it can be quickly released. This method avoids the energy loss of the bidirectional inverter during the power conversion process and improves the efficiency of energy recovery. At the same time, the long life characteristics of the supercapacitor also reduce the maintenance cost of the energy recovery module, enhance the reliability and stability of the system, and further improve the overall performance of the power aging test system, which has obvious advantages over traditional energy recovery methods.

[0040] Example 3: The power supply aging test method provided in the embodiment of the present application includes the following steps: S1. Connect the AC input of the power supply to be tested to the AC output socket of the aging rack, connect the output to the copper sheet interface of the electronic load module, and connect the RS485 communication interface to the aging rack in parallel. During operation, for high-power power supplies (greater than 2000W), its AC input terminal must be connected to the output terminal block behind the air switch on the aging rack. Use appropriate power connection cables to ensure the stability and reliability of the electrical connection. At the same time, during the wiring process, be sure to turn off the start switch of the power cabinet to ensure the safety of the operator. For multi-channel power supplies, each channel must be connected to the trolley electronic load output copper sheet separately. Each trolley can connect 6 channels per layer (the power of each channel is less than 1000W and the current is less than 20A. When the power is greater than 1000W and the current is greater than 20A, multiple channels must be connected in parallel with copper sheets).

[0041] S2. Start the industrial computer and power cabinet, set the input power supply mode for the burn-in rack, and set the target temperature and humidity values for the sealed test chamber via the touchscreen. After starting the industrial computer, wait for system initialization to complete, then turn on the main power switch on the power cabinet. The main power switch indicator will illuminate, indicating power is on. The emergency stop switch can be used to shut down the entire burn-in test system. Apply power to the burn-in rack using the start switches on the cabinet panel (Start switch 1 supplies power to burn-in trolley 1, with the corresponding power indicator illuminating; Start switch 3 supplies power to burn-in trolley 2, with the corresponding power indicator illuminating; Start switch 2 is reserved) or the corresponding buttons on the touchscreen. Simultaneously, the start switch activates the heating and exhaust system within the burn-in chamber, while the stop switch deactivates it. The "Start" and "Stop" buttons on the touchscreen display correspond to the start and stop switches on the cabinet panel, representing the burn-in chamber's operating switches. On the test screen, tap "Next Page" on the touchscreen display to enter the actual temperature display at the temperature test point. This page allows manual operation of switches such as "Exhaust," "Low-Speed Circulation," "Circulating Fan," and "Single-Unit Heating." According to the test requirements, click "Set" on the touch screen to enter the parameter setting interface. If there are no special requirements, set the required temperature parameters of the aging chamber to 40°C according to the specifications. The temperature and humidity control unit uses the PID algorithm to adjust the heating power and fan speed to achieve the set temperature and humidity values. Its control equation is: u(t) = K_pe(t) + K_i ∫0^te(τ) dτ + K_d (de(t) / dt), where u(t) is the control output and e(t) is the deviation between the set temperature and humidity values and the actual values.

[0042] S3. Select the test model in the terminal software, configure the output voltage, current load value, test time, and upper and lower voltage and current limits. Dynamically adjust the load power using the formula Pload = Vset × Iset, where Vset and Iset are the software-defined voltage and current values, respectively. In the terminal software interface, find the model selection and parameter configuration module. First, set the communication address of the power supply under test to the same number of load channels as the connected trolley aging rack, ranging from 1 to 36 channels. If the connected load has multiple channels, the first channel number of the connected load will prevail. Select the appropriate model based on the power supply under test and the test requirements. If you do not need to change the model, search for the model you want to test in the "View or Edit Specifications" column and click on it. To add a new model, search for existing specifications similar to the new model in the "View or Edit Specifications" column, enter the new model in the "P / N" field, and click "Save" to create a new model. Then, adjust the parameters according to the new model's specifications. Set basic parameters on the "Basic Settings" interface (check "√" in "Options" to avoid testing if none are required; select "In-cycle" in "Monitoring Mode" to cycle the test within one cycle, or "Out-of-cycle" to test only the first time and then not again; select "ON" in "ON / OFF" to turn on the power output during the test, or "OFF" to turn off the power output during the test; set the time for the output voltage and current to stabilize in the "Stabilization Time" item, which is generally not changed; set the output voltage value in the "Output Voltage" item; set the output current value in the "Load Value" item; set the output current value + / -10% in the "Voltage and Current Limits" item; set the required test time in the "Test Time" item; and set the unit of the required test time in the "Time Type" item). After setting the parameters, click "Save" to save the parameters. On the "Channel Configuration" interface, set the device model to be tested. After setting, click "Save" to save the parameters (this item is generally not set here). The software will calculate the load power based on the set voltage and current values and automatically adjust the working status of the electronic load module.

[0043] S4. Initiate the multi-channel aging test. The industrial computer monitors the voltage, current, temperature, and humidity data of each channel in real time, and feeds power back to the grid via the energy recovery module. Click the "Start All" button on the terminal software interface to initiate the multi-channel aging test. This multi-channel test supports simultaneous connection of 30-36 power supplies under test and distributes the power of the electronic load modules using a load balancing algorithm. The industrial computer obtains test data from each channel in real time through the communication interface and analyzes and processes the data. The energy recovery module uses a bidirectional inverter to convert the power consumed by the electronic load modules into AC power with the same frequency and phase as the grid, and then feeds it back to the grid to achieve energy recovery.

[0044] S5. A machine learning algorithm is used to detect anomalies in the test data. If the conditions |Vactual - VSet| ≤ ΔVthreshold and |Iactual - ISet| ≤ ΔIthreshold are met, the test is considered passed. This anomaly detection utilizes the Isolation Forest algorithm, marking data points outside the 3σ range as faults. An industrial control computer analyzes the collected test data in real time, using machine learning algorithms to identify anomalies and ensure the accuracy and reliability of the test results. Furthermore, the test data is stored using blockchain technology to ensure it cannot be tampered with. Furthermore, this method supports remote monitoring, with users accessing the industrial control computer's real-time test interface via an encrypted protocol.

[0045] S6. Testing automatically stops after the preset aging time is reached, and a test report is generated that includes energy recovery efficiency, temperature and humidity stability, and channel consistency metrics. The test report also includes the inter-channel coefficient of variation, calculated as C_v = (σ / μ) × 100%, where σ is the standard deviation of each channel's key parameter and μ is the mean. The terminal software supports adding parameter templates for new models and links historical test data to the database to optimize the AI analysis model. The system automatically stops testing after the preset aging time and organizes and analyzes the data collected during the test to generate a detailed test report, providing a solid basis for power supply product quality assessment. Finally, turn off the power switch and remove the connecting cables to prepare for testing the next device (or channel).

[0046] The implementation principle of this embodiment is as follows: This power supply aging test method realizes a comprehensive and accurate aging test of the power supply product through a series of orderly steps. From the connection of the power supply to be tested, parameter setting, monitoring of the test process and energy recovery, to the final anomaly detection and report generation, all links are closely coordinated. The automation and intelligence of the test process are realized by the collaborative work of the terminal software and the industrial control computer. Anomaly detection is performed through machine learning algorithms, which improves the reliability and accuracy of the test results. At the same time, the application of the energy recovery module achieves the purpose of energy saving. The generated detailed test report provides an important reference for the quality evaluation and improvement of power supply products. Compared with traditional test methods, it has higher efficiency and better results, and can meet the needs of aging testing of modern power supply products.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A power aging test system, characterized in that: include: Industrial computer, at least one burn-in rack, energy recovery module, electronic load module and sealed test chamber; The industrial control computer is connected to the aging rack via a communication interface and is used to control aging test parameters and data collection; The aging rack has a built-in multi-channel electronic load module, each channel is independently connected to the output end of the power supply to be tested, and communicates with the industrial control computer through a parallel RS485 interface; The energy recovery module is electrically connected to the electronic load module and is used to convert the electrical energy output by the power supply under test into energy that can be stored or fed back to the power grid; The sealed test chamber is integrated with a temperature and humidity control unit, including a heating and exhaust system, a circulating fan and a sensor. The temperature and humidity control unit sets constant temperature and humidity values through an industrial control computer and provides real-time feedback and adjustment. The system also includes terminal control software that supports multi-channel synchronous testing, dynamic parameter configuration, and AI analysis of test data. The software calculates energy recovery efficiency using the following formula: η = (P recovery / P input) × 100%; Where η is the recovery efficiency, Precovery is the recovered power, and Pinput is the input power of the power supply to be tested.

2. A power aging test method, characterized in that: The following steps are involved: S1. Connect the AC input of the power supply to be tested to the AC output socket of the aging rack, connect the output to the copper interface of the electronic load module, and connect the RS485 communication interface to the aging rack in parallel; S2. Start the industrial computer and power cabinet, set the input power supply mode of the aging rack, and set the temperature and humidity target values of the closed test chamber through the touch screen; S3. Select the test model in the terminal software, configure the output voltage, current load value, test time, and upper and lower limits of voltage and current, and dynamically adjust the load power using the following formula: Pload = Vsetting × Isetting; Among them, V setting and I setting are the voltage and current values set by the software respectively; S4. Start the multi-channel aging test. The industrial computer monitors the voltage, current, temperature and humidity data of each channel in real time, and feeds power back to the grid through the energy recovery module. S5. Use machine learning algorithms to detect anomalies in the test data. The test is considered qualified if the following conditions are met: |Vactual - Vset| ≤ ΔVthreshold and |Iactual - Iset| ≤ ΔIthreshold; S6. The test automatically stops after the preset aging time is reached, and a test report is generated that includes energy recovery efficiency, temperature and humidity stability, and channel consistency indicators.

3. The structurally sound connector according to claim 2, characterized in that: The temperature and humidity control unit adjusts the heating power and fan speed through the PID algorithm, and its control equation is: u(t) = K_p e(t) + K_i ∫0^te(τ) dτ + K_d (de(t) / dt); Where u(t) is the control output, and e(t) is the deviation between the set value and the actual value of temperature and humidity.

4. The structurally sound connector according to claim 3, characterized in that: The multi-channel test supports the simultaneous access of 30-36 power supplies to be tested, and distributes the power of the electronic load module through a load balancing algorithm.

5. The structurally sound connector according to claim 2, characterized in that: The energy recovery module adopts a bidirectional inverter to convert the electric energy consumed by the electronic load module into alternating current with the same frequency and phase as the power grid.

6. The structurally sound connector according to claim 2, characterized in that: The terminal software supports adding parameter templates for new models and associating historical test data through a database to optimize the AI analysis model.

7. The structurally sound connector according to claim 2, characterized in that: The test report contains the inter-channel difference coefficient, which is calculated as follows: C_v = (σ / μ) × 100%; Among them, σ is the standard deviation of the key parameters of each channel, and μ is the mean.

8. The structurally sound connector according to claim 2, characterized in that: The anomaly detection adopts the isolation forest algorithm and marks the data points beyond the 3σ range as faults.

9. The structurally sound connector according to claim 2, characterized in that: The test data is stored through blockchain technology to ensure that the data cannot be tampered with.

10. The structurally sound connector according to claim 2, characterized in that: The method supports remote monitoring, and users access the real-time test interface of the industrial control computer through an encrypted protocol.

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