A high-power power supply testing method and system based on environmental simulation

Abstract

The present invention discloses a high-power power supply test method and system based on environmental simulation, which is intended to accurately evaluate the charge and discharge performance of a high-power power supply under different environmental conditions. The present invention comprises the following steps: obtaining a target power supply sample and performing charge and discharge tests under different environmental conditions, and evaluating the results; determining environmental influencing factors and their influence on the test results using a regression analysis method; constructing a simulation test model according to the charge and discharge characteristics and environmental influencing factors; importing the current test environmental conditions into the model for simulation testing to obtain simulation test results; evaluating the test accuracy according to the simulation test results, and adjusting the current test environmental conditions to optimize the test results. The present invention improves the accuracy and reliability of high-power power supply testing by comprehensively considering environmental factors, and is suitable for high-power power supply performance evaluation in the industrial and scientific research fields.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply testing, and in particular to a high-power power supply testing method and system based on environmental simulation. Background Art

[0002] In modern industry and technology, high-power power supplies are widely used in various devices and systems, and their performance directly affects the reliability and efficiency of the equipment. Therefore, it is particularly important to accurately test and evaluate high-power power supplies. However, traditional high-power power supply testing methods usually ignore the impact of environmental factors on test results, which may have a significant impact on power supply performance in actual applications. For example, changes in environmental conditions such as temperature, humidity, and pressure can cause changes in the charge and discharge characteristics of the power supply, which in turn affects its working performance and life.

[0003] Currently, existing test methods are mainly conducted under standard laboratory conditions, which are often different from the conditions in the actual working environment of the power supply, resulting in inconsistency between the test results and the actual application effects. Especially under extreme environmental conditions, such as high temperature, low temperature, high humidity or low voltage, traditional methods are difficult to accurately evaluate the true performance of the power supply. In addition, the existing test methods lack a systematic analysis of environmental influencing factors and cannot provide comprehensive information on how environmental conditions affect the performance of the power supply.

[0004] In order to overcome the above shortcomings, it is particularly necessary to provide a test method that can accurately evaluate the performance of high-power power supplies under various environmental conditions. The present invention proposes a high-power power supply test method based on environmental simulation, which improves the accuracy and reliability of the test by systematically analyzing and simulating the influencing factors under different environmental conditions, and provides strong support for the design, production and application of high-power power supplies. Summary of the invention

[0005] In order to solve at least one of the above technical problems, the present invention proposes a high-power power supply testing method and system based on environmental simulation.

[0006] A first aspect of the present invention provides a high-power power supply testing method based on environmental simulation, comprising:

[0007] Obtain a power supply sample of a target high-power power supply, perform a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluate the charge-discharge performance test results of the power supply sample under different environmental conditions;

[0008] Analyze the charge and discharge performance test results based on a regression analysis method to determine the environmental influencing factors that affect the test accuracy and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0009] Acquire the charge and discharge characteristics of the power supply sample during the charge and discharge test, and build a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0010] Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and obtain simulation test results;

[0011] The simulation test accuracy of the current environmental conditions is evaluated according to the simulation test results, and the current test environmental conditions are adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment plan.

[0012] In this solution, the power supply sample of the target high-power power supply is obtained, the charge and discharge performance test of the power supply sample is performed under different environmental conditions, and the charge and discharge performance test results of the power supply sample under different environmental conditions are evaluated, specifically:

[0013] Obtain power samples and actual performance data of the target high-power power supply, build an environmental simulation cabin, obtain historical test data of the target high-power power supply, and obtain a range of changes in historical test environmental conditions based on the historical test data, wherein the test environmental conditions include temperature, humidity, air pressure, and magnetic field strength;

[0014] Taking values ​​of the historical test environmental condition variation range according to a preset step length to obtain an environmental condition test value of the power supply sample;

[0015] The power supply sample is placed in the environmental simulation chamber, and a charge-discharge performance test is performed on each test environmental factor according to the environmental condition test value based on the control variable method, and the temperature change, capacity change, resistance change, voltage and current change of the power supply sample under each environmental condition test value are recorded in real time to obtain performance parameter change data of the power supply sample;

[0016] Determine the charging efficiency, discharging efficiency and cycle life of the power supply sample under different environmental conditions according to the performance parameter change data to evaluate the performance under different environmental conditions, and obtain performance evaluation results under different environmental conditions;

[0017] Compare the performance evaluation results under the different environmental conditions with the actual performance data of the power supply sample, and analyze the performance deviation between the performance test of the power supply sample under different environmental conditions and the actual performance;

[0018] The performance evaluation accuracy of power supply samples under different environmental conditions is determined based on the performance deviation, and the charging and discharging performance test results of the power supply samples under different environmental conditions are obtained. The charging and discharging performance test results include performance parameter change data of the power supply samples, performance evaluation results under different environmental conditions, performance deviation between the performance test of the power supply samples under different environmental conditions and the actual performance, and performance evaluation accuracy.

[0019] In this solution, the charge and discharge performance test results are analyzed based on the regression analysis method to determine the environmental impact factors that affect the test accuracy and the impact relationship of each environmental impact factor on the charge and discharge performance test, specifically:

[0020] Based on the regression analysis method, the charge and discharge performance test results under the different environmental conditions are subjected to regression analysis, and the charge efficiency, discharge efficiency and cycle life under different environmental conditions are used as dependent variables, and the test environment factor is used as an independent variable to construct a regression equation;

[0021] Calculating the regression coefficient of the regression equation under each environmental condition based on the least squares method, performing a t test on the regression coefficient under each environmental condition to obtain a t value, and judging the significance of the regression coefficient of the regression equation under each environmental condition according to the t value and a t value distribution table;

[0022] Determine the influence of each test environment factor on the test accuracy of charge and discharge performance according to the significance of the regression coefficient of the regression equation under each environmental condition, and mark the test environment factor with an influence greater than a preset value as an environmental influence factor that will affect the test accuracy of charge and discharge of the power supply sample;

[0023] Draw an environmental condition-charge and discharge performance relationship curve diagram for each test environmental factor in the charge and discharge performance test and the charge and discharge performance test result;

[0024] The influence relationship of different environmental influencing factors on the charge and discharge performance test is determined according to the environmental condition-charge and discharge performance relationship curve diagram, and the influence relationship includes the charging efficiency influence relationship, the discharge efficiency influence relationship, the power supply capacity influence relationship, and the charge and discharge test accuracy influence relationship.

[0025] In this solution, the charging and discharging characteristics of the power supply sample during the charging and discharging test are obtained, and a simulation test model of the target high-power power supply is constructed according to the charging and discharging characteristics and the influence relationship of each environmental influencing factor on the charging and discharging performance test, specifically:

[0026] Collecting charge and discharge characteristic data of power supply samples during charge and discharge tests under different environmental conditions, wherein the charge and discharge characteristic data includes a charge current and voltage curve, a discharge current and voltage curve, and a temperature change curve;

[0027] Extracting charging and discharging characteristics of power supply samples for performance testing under different environmental conditions according to the charging and discharging characteristic data, wherein the charging and discharging characteristics include charging rate, discharging rate, maximum charging voltage and current, minimum charging voltage and current, and temperature rise rate;

[0028] An equivalent circuit model of the target high-power power supply is constructed based on the RC model, and the charge and discharge characteristics of the equivalent circuit model in the charge and discharge process are limited according to the charge and discharge characteristic data, and the equivalent circuit model is fitted according to the influence relationship of each environmental influencing factor on the charge and discharge performance test to obtain a simulation test model of the target high-power power supply.

[0029] In this solution, the current test environment conditions of the target high-power power supply are obtained, and the current test environment conditions are imported into the simulation test model to perform simulation test to obtain simulation test results, specifically:

[0030] Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and calculate and simulate the charge and discharge characteristics of the target high-power power supply under the current test environment conditions;

[0031] According to the charge and discharge characteristics under the current test environment conditions, the current charging efficiency, current discharge efficiency, and current cycle life of the target high-power power supply are calculated for evaluation, and the simulation test results under the current environmental conditions are obtained.

[0032] In this solution, the simulation test accuracy of the current environmental conditions is evaluated according to the simulation test results, and the current test environmental conditions are adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment solution, which is specifically:

[0033] According to the influence relationship of each environmental influencing factor on the charge and discharge performance test, the test accuracy of the simulation test results of the target high-power power supply under the current test environment conditions is evaluated to obtain the test accuracy data of the target high-power power supply under the current test environment;

[0034] Determining the environmental conditions to be adjusted according to the test accuracy data and the degree of influence of each test environmental factor on the test accuracy of the charge and discharge performance, and determining the adjustment priority of the environmental conditions to be adjusted according to the degree of influence;

[0035] The adjustment direction of the test environmental conditions of the target high-power power supply is determined according to the simulation test accuracy data and the environmental conditions-charge and discharge performance relationship curve diagram, and the test environmental conditions of the target high-power power supply are adjusted according to the environmental conditions to be adjusted, the adjustment priority of the environmental conditions, and the adjustment direction.

[0036] The second aspect of the present invention further provides a high-power power supply test system based on environmental simulation, the system comprising: a memory, a processor, the memory comprising a high-power power supply test method program based on environmental simulation, the high-power power supply test method program based on environmental simulation being executed by the processor to implement the following steps:

[0037] Obtain a power supply sample of a target high-power power supply, perform a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluate the charge-discharge performance test results of the power supply sample under different environmental conditions;

[0038] Analyze the charge and discharge performance test results based on a regression analysis method to determine the environmental influencing factors that affect the test accuracy and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0039] Acquire the charge and discharge characteristics of the power supply sample during the charge and discharge test, and build a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0040] Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and obtain simulation test results;

[0041] The simulation test accuracy of the current environmental conditions is evaluated according to the simulation test results, and the current test environmental conditions are adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment plan.

[0042] In this solution, the charging and discharging characteristics of the power supply sample during the charging and discharging test are obtained, and a simulation test model of the target high-power power supply is constructed according to the charging and discharging characteristics and the influence relationship of each environmental influencing factor on the charging and discharging performance test, specifically:

[0043] Collecting charge and discharge characteristic data of power supply samples during charge and discharge tests under different environmental conditions, wherein the charge and discharge characteristic data includes a charge current and voltage curve, a discharge current and voltage curve, and a temperature change curve;

[0044] Extracting charging and discharging characteristics of power supply samples for performance testing under different environmental conditions according to the charging and discharging characteristic data, wherein the charging and discharging characteristics include charging rate, discharging rate, maximum charging voltage and current, minimum charging voltage and current, and temperature rise rate;

[0045] An equivalent circuit model of the target high-power power supply is constructed based on the RC model, and the charge and discharge characteristics of the equivalent circuit model in the charge and discharge process are limited according to the charge and discharge characteristic data, and the equivalent circuit model is fitted according to the influence relationship of each environmental influencing factor on the charge and discharge performance test to obtain a simulation test model of the target high-power power supply.

[0046] In this solution, the current test environment conditions of the target high-power power supply are obtained, and the current test environment conditions are imported into the simulation test model to perform simulation test to obtain simulation test results, specifically:

[0047] Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and calculate and simulate the charge and discharge characteristics of the target high-power power supply under the current test environment conditions;

[0048] According to the charge and discharge characteristics under the current test environment conditions, the current charging efficiency, current discharge efficiency, and current cycle life of the target high-power power supply are calculated for evaluation, and the simulation test results under the current environmental conditions are obtained.

[0049] In this solution, the simulation test accuracy of the current environmental conditions is evaluated according to the simulation test results, and the current test environmental conditions are adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment solution, which is specifically:

[0050] According to the influence relationship of each environmental influencing factor on the charge and discharge performance test, the test accuracy of the simulation test results of the target high-power power supply under the current test environment conditions is evaluated to obtain the test accuracy data of the target high-power power supply under the current test environment;

[0051] Determining the environmental conditions to be adjusted according to the test accuracy data and the degree of influence of each test environmental factor on the test accuracy of the charge and discharge performance, and determining the adjustment priority of the environmental conditions to be adjusted according to the degree of influence;

[0052] The adjustment direction of the test environmental conditions of the target high-power power supply is determined according to the simulation test accuracy data and the environmental conditions-charge and discharge performance relationship curve diagram, and the test environmental conditions of the target high-power power supply are adjusted according to the environmental conditions to be adjusted, the adjustment priority of the environmental conditions, and the adjustment direction.

[0053] The present invention discloses a high-power power supply test method and system based on environmental simulation, which is intended to accurately evaluate the charge and discharge performance of a high-power power supply under different environmental conditions. The present invention comprises the following steps: obtaining a target power supply sample and performing charge and discharge tests under different environmental conditions, and evaluating the results; determining environmental influencing factors and their influence on the test results using a regression analysis method; constructing a simulation test model according to the charge and discharge characteristics and environmental influencing factors; importing the current test environmental conditions into the model for simulation testing to obtain simulation test results; evaluating the test accuracy according to the simulation test results, and adjusting the current test environmental conditions to optimize the test results. The present invention improves the accuracy and reliability of high-power power supply testing by comprehensively considering environmental factors, and is suitable for high-power power supply performance evaluation in the industrial and scientific research fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A flow chart of a high-power power supply testing method based on environmental simulation of the present invention is shown;

[0055] Figure 2 A flow chart showing the simulation test results obtained by the present invention is shown;

[0056] Figure 3 A flow chart showing a test environment condition adjustment scheme obtained by the present invention;

[0057] Figure 4 A block diagram of a high-power power supply testing system based on environmental simulation of the present invention is shown. DETAILED DESCRIPTION

[0058] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0059] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0060] Figure 1 The flowchart of a high-power power supply testing method based on environmental simulation of the present invention is shown.

[0061] like Figure 1 As shown, the first aspect of the present invention provides a high-power power supply testing method based on environmental simulation, comprising:

[0062] S102, obtaining a power supply sample of a target high-power power supply, performing a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluating the charge-discharge performance test results of the power supply sample under different environmental conditions;

[0063] S104, analyzing the charge and discharge performance test results based on a regression analysis method to determine the environmental impact factors that affect the test accuracy and the impact relationship of each environmental impact factor on the charge and discharge performance test;

[0064] S106, obtaining the charge and discharge characteristics of the power supply sample during the charge and discharge test, and constructing a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0065] S108, obtaining the current test environment conditions of the target high-power power supply, importing the current test environment conditions into the simulation test model to perform simulation testing, and obtaining simulation test results;

[0066] S110, evaluating the simulation test accuracy of the current environmental conditions according to the simulation test results, adjusting the current test environmental conditions according to the simulation test accuracy, and obtaining a test environmental condition adjustment plan.

[0067] It should be noted that since the target high-power power supply will be affected by environmental conditions during the test, the test results cannot accurately reflect the actual charging and discharging performance of the target high-power power supply; therefore, by obtaining high-power power supply samples for charging and discharging performance tests under different environmental conditions, and by testing under multiple environmental conditions, the charging and discharging performance of power supply samples under different environmental conditions can be fully understood; through regression analysis, the impact of different environmental factors on power supply performance can be identified and quantified, and the cause-effect relationship can be clarified. For example, the specific impact of temperature changes on charging time and efficiency can be determined, and the accuracy and reliability of the test can be improved by analyzing the influencing factors, and the test error can be reduced. By understanding the role of each influencing factor in detail, the performance of the power supply in different environments can be more accurately predicted; the model constructed based on actual test data and regression analysis results can more accurately simulate the performance of the power supply under different environmental conditions. The model can reflect the comprehensive impact of various environmental factors on the performance of the power supply, and the simulation test model can predict the performance of the power supply under untested environmental conditions and provide more performance data. For example, the charging and discharging characteristics of the power supply under extreme low temperature conditions can be predicted to help testers understand the applicability of the current environmental test conditions in advance; reduce the number of actual tests, and reduce the test cost and time through simulation tests. Through simulation testing, some expensive and complicated actual testing processes can be avoided, and the test efficiency can be improved; before the actual test, the performance of the power supply under the current environmental conditions can be understood through model simulation, and the test environment conditions can be adjusted in time according to the simulation test results to improve the flexibility and adaptability of the test. The significant impact of certain environmental conditions on the test results can be found in the simulation test, and the actual test environment can be adjusted accordingly; according to the evaluation results, an environmental condition adjustment plan is formulated to optimize the actual test environment to ensure that the actual performance of the target high-power power supply for performance testing can be reflected under the current test conditions; the target high-power power supply is a power supply device that provides high power output, including modular power supplies and UPS.

[0068] According to an embodiment of the present invention, the power supply sample of the target high-power power supply is obtained, the charge and discharge performance test of the power supply sample is performed under different environmental conditions, and the charge and discharge performance test results of the power supply sample under different environmental conditions are evaluated, specifically:

[0069] Obtain power samples and actual performance data of the target high-power power supply, build an environmental simulation cabin, obtain historical test data of the target high-power power supply, and obtain a range of changes in historical test environmental conditions based on the historical test data, wherein the test environmental conditions include temperature, humidity, air pressure, and magnetic field strength;

[0070] Taking values ​​of the historical test environmental condition variation range according to a preset step length to obtain an environmental condition test value of the power supply sample;

[0071] The power supply sample is placed in the environmental simulation chamber, and a charge-discharge performance test is performed on each test environmental factor according to the environmental condition test value based on the control variable method, and the temperature change, capacity change, resistance change, voltage and current change of the power supply sample under each environmental condition test value are recorded in real time to obtain performance parameter change data of the power supply sample;

[0072] Determine the charging efficiency, discharging efficiency and cycle life of the power supply sample under different environmental conditions according to the performance parameter change data to evaluate the performance under different environmental conditions, and obtain performance evaluation results under different environmental conditions;

[0073] Compare the performance evaluation results under the different environmental conditions with the actual performance data of the power supply sample, and analyze the performance deviation between the performance test of the power supply sample under different environmental conditions and the actual performance;

[0074] The performance evaluation accuracy of power supply samples under different environmental conditions is determined based on the performance deviation, and the charging and discharging performance test results of the power supply samples under different environmental conditions are obtained. The charging and discharging performance test results include performance parameter change data of the power supply samples, performance evaluation results under different environmental conditions, performance deviation between the performance test of the power supply samples under different environmental conditions and the actual performance, and performance evaluation accuracy.

[0075] It should be noted that by combining the actual performance data of the power supply sample with the historical test data, a comprehensive performance evaluation basis can be obtained; the environmental simulation chamber can accurately simulate different historical test environmental conditions, ensure the controllability and repeatability of the test environment, and improve the comparability and reliability of the test results; by taking values ​​through preset step sizes, the environmental conditions can be finely controlled to ensure that the changes in each environmental variable during the test are orderly and controllable, and the detailed step size setting improves the accuracy of the environmental condition test values; the controlled variable method can accurately evaluate the independent impact of each environmental factor on the power supply performance, reducing the interference of other variables; by determining key performance indicators such as charging efficiency, discharge efficiency and cycle life, the performance of the power supply under different environmental conditions can be quantified, covering multiple performance dimensions of the power supply under different environmental conditions, ensuring the comprehensiveness and meticulousness of the evaluation; by comparing the performance evaluation results with the actual performance data, the specific impact of environmental conditions on the test results can be identified.

[0076] According to an embodiment of the present invention, the charge and discharge performance test results are analyzed based on the regression analysis method to determine the environmental impact factors affecting the test accuracy and the influence relationship of each environmental impact factor on the charge and discharge performance test, specifically:

[0077] Based on the regression analysis method, the charge and discharge performance test results under the different environmental conditions are subjected to regression analysis, and the charge efficiency, discharge efficiency and cycle life under different environmental conditions are used as dependent variables, and the test environment factor is used as an independent variable to construct a regression equation;

[0078] Calculating the regression coefficient of the regression equation under each environmental condition based on the least squares method, performing a t test on the regression coefficient under each environmental condition to obtain a t value, and judging the significance of the regression coefficient of the regression equation under each environmental condition according to the t value and a t value distribution table;

[0079] Determine the influence of each test environment factor on the test accuracy of charge and discharge performance according to the significance of the regression coefficient of the regression equation under each environmental condition, and mark the test environment factor with an influence greater than a preset value as an environmental influence factor that will affect the test accuracy of charge and discharge of the power supply sample;

[0080] Draw an environmental condition-charge and discharge performance relationship curve diagram for each test environmental factor in the charge and discharge performance test and the charge and discharge performance test result;

[0081] The influence relationship of different environmental influencing factors on the charge and discharge performance test is determined according to the environmental condition-charge and discharge performance relationship curve diagram, and the influence relationship includes the charging efficiency influence relationship, the discharge efficiency influence relationship, the power supply capacity influence relationship, and the charge and discharge test accuracy influence relationship.

[0082] It should be noted that regression analysis is a statistical method used to explore the impact of one or more independent variables on the dependent variable. Here, the charge efficiency, discharge efficiency and cycle life are the dependent variables (i.e. the results we want to study), while the environmental conditions (such as temperature, humidity, pressure, etc.) are the independent variables (i.e. the factors that may affect the results). By collecting the charge and discharge performance data under different environmental conditions and establishing a mathematical model (regression equation) using regression analysis methods, we can quantify the impact of each environmental factor on the charge and discharge performance. The least squares method is an optimization technique used to minimize the sum of squares of the errors between the observed and predicted values ​​in the regression equation to determine the regression coefficient. The t-test is used to determine whether the regression coefficient is significant (i.e. whether there is enough statistical evidence to show that the independent variable has an impact on the dependent variable). The t-value is calculated and then compared with the t-value distribution table. If the t-value exceeds a certain critical value, the regression coefficient is considered significant, indicating that the corresponding environmental factor has a significant impact on the charge and discharge performance. The significant regression coefficient reflects the impact of each environmental factor on the charge and discharge performance. The higher the significance, the greater the impact. By comparing the significance of these coefficients with the preset threshold, it is possible to identify which environmental factors have an impact greater than the threshold, thereby determining these factors as important environmental influencing factors and marking them as factors that have a significant impact on test accuracy. By drawing the relationship curve between environmental conditions (independent variables) and charge and discharge performance (dependent variables), the impact of different environmental factors on charge and discharge performance can be intuitively displayed. These graphs help to further analyze and understand the specific impact pattern of each environmental factor on charge and discharge performance under different conditions. By analyzing the environmental conditions-charge and discharge performance relationship curve, the specific impact of each environmental factor on charging efficiency, discharge efficiency, power supply capacity and test accuracy can be identified. The identification of these impact relationships helps to understand the comprehensive impact of environmental factors on charge and discharge performance, thereby providing a basis for optimizing power supply test conditions and improving test accuracy.

[0083] According to an embodiment of the present invention, the charging and discharging characteristics of the power supply sample during the charging and discharging test are obtained, and a simulation test model of the target high-power power supply is constructed according to the charging and discharging characteristics and the influence relationship of each environmental influencing factor on the charging and discharging performance test, specifically:

[0084] Collecting charge and discharge characteristic data of power supply samples during charge and discharge tests under different environmental conditions, wherein the charge and discharge characteristic data includes a charge current and voltage curve, a discharge current and voltage curve, and a temperature change curve;

[0085] Extracting charging and discharging characteristics of power supply samples for performance testing under different environmental conditions according to the charging and discharging characteristic data, wherein the charging and discharging characteristics include charging rate, discharging rate, maximum charging voltage and current, minimum charging voltage and current, and temperature rise rate;

[0086] An equivalent circuit model of the target high-power power supply is constructed based on the RC model, and the charge and discharge characteristics of the equivalent circuit model in the charge and discharge process are limited according to the charge and discharge characteristic data, and the equivalent circuit model is fitted according to the influence relationship of each environmental influencing factor on the charge and discharge performance test to obtain a simulation test model of the target high-power power supply.

[0087] It should be noted that the RC model is a commonly used battery equivalent circuit model, which consists of resistance (R) and capacitance (C) components and is used to simulate the charging and discharging behavior of the battery. By introducing the previously extracted charging and discharging characteristic data into the RC model, the specific parameters of the model can be limited to make it closer to the charging and discharging characteristics of the actual power supply. For example, by adjusting the resistance and capacitance values ​​in the model, the simulated charging voltage and current curves are matched with the actual test data. Through the previous regression analysis and feature extraction steps, the influence of each environmental factor on the charging and discharging performance has been clarified. Using these relationships, the equivalent circuit model is fitted, that is, the model parameters are adjusted so that the simulation results under different environmental conditions are consistent with the actual test results. This step ensures that the simulation test model can accurately reflect the charging and discharging behavior of the target high-power power supply under different environmental conditions.

[0088] Figure 2 A flow chart of obtaining simulation test results according to the present invention is shown.

[0089] According to an embodiment of the present invention, the current test environment condition of the target high-power power supply is obtained, and the current test environment condition is imported into the simulation test model to perform simulation test to obtain the simulation test result, specifically:

[0090] S202, obtaining the current test environment conditions of the target high-power power supply, importing the current test environment conditions into the simulation test model to perform simulation testing, and calculating and simulating the charge and discharge characteristics of the target high-power power supply under the current test environment conditions;

[0091] S204, calculating the current charging efficiency, current discharging efficiency, and current cycle life of the target high-power power source according to the charging and discharging characteristics under the current test environment conditions for evaluation, and obtaining simulation test results under the current environment conditions.

[0092] It should be noted that, first of all, it is necessary to obtain relevant data under the current test environment conditions (such as temperature, humidity, pressure, electromagnetic intensity, etc.). These environmental condition data will be input into the previously constructed simulation test model. Through this model, the charging and discharging characteristics of the target high-power power supply under these specific environmental conditions can be calculated and simulated, such as the current, voltage and temperature changes during charging and discharging. This step uses the equivalent circuit model and environmental impact factor relationship established earlier to predict the performance of the actual power supply under the current environment. Based on the charging and discharging characteristics generated by the simulation test model, specific performance indicators can be further calculated, including charging efficiency (the ratio of the amount of electricity charged per unit time to the input amount of electricity), discharge efficiency (the ratio of the amount of electricity discharged per unit time to the output amount of electricity) and cycle life (the number of sustainable charging and discharging times of the power supply under current conditions). The evaluation results provide a comprehensive understanding of the power supply performance of the current test environment, which helps to judge and optimize the conditions for the use of the power supply.

[0093] Figure 3 The flowchart of the test environment condition adjustment scheme obtained by the present invention is shown.

[0094] According to an embodiment of the present invention, the simulation test accuracy of the current environmental conditions is evaluated according to the simulation test results, and the current test environmental conditions are adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment plan, specifically:

[0095] S302, evaluating the test accuracy of the simulation test results of the target high-power power supply under the current test environment conditions according to the influence relationship of each environmental influencing factor on the charge-discharge performance test, and obtaining the test accuracy data of the target high-power power supply under the current test environment;

[0096] S304, determining the environmental conditions to be adjusted according to the test accuracy data and the degree of influence of each test environment factor on the charge and discharge performance test accuracy, and determining the adjustment priority of the environmental conditions to be adjusted according to the degree of influence;

[0097] S306, determining the adjustment direction of the test environmental conditions of the target high-power power supply according to the simulation test accuracy data and the environmental conditions-charge and discharge performance relationship curve, and adjusting the test environmental conditions of the target high-power power supply according to the environmental conditions to be adjusted, the adjustment priority of the environmental conditions, and the adjustment direction.

[0098] It should be noted that the influence relationship of each environmental influencing factor on the charge and discharge performance test determined previously is used to evaluate the accuracy of the simulated test results under the current test environment conditions. The test accuracy data reflects the degree of match between the simulated results and the real results; the test accuracy data and the influence of each environmental factor on the test accuracy are analyzed to determine which environmental conditions need to be adjusted. For example, if a certain environmental factor has a significant impact on the test results and the accuracy is not high, the environmental factor needs to be adjusted first. Environmental factors with a greater degree of influence will be assigned a higher adjustment priority to ensure that the test accuracy is improved by adjusting these key factors. Combined with the simulated test accuracy data and the environmental condition-charge and discharge performance relationship curve, determine how to adjust the environmental conditions to improve the test accuracy. For example, if the increase of a certain environmental factor leads to a decrease in charge and discharge efficiency, it can be considered to reduce the value of the factor. The adjustment direction can be to increase or decrease the value of a certain environmental factor. According to the environmental conditions to be adjusted, their priority and adjustment direction, a specific adjustment plan is formulated to optimize the test environment conditions, thereby improving the accuracy of the test results.

[0099] According to an embodiment of the present invention, it also includes:

[0100] Acquire performance change data of a target high-power power supply operating under different environmental conditions within a preset time period, sort the performance change data according to a time series to obtain performance change time series data, and divide the performance change time series data into a training set and a test set according to a preset ratio;

[0101] Building a performance change prediction model for a target high-power power source based on an LSTM algorithm, initializing an LSTM layer and a fully connected layer of the performance change model, importing the training set into the performance change prediction model for training, and compiling the model according to an Adam optimizer and a mean square error loss function;

[0102] Importing the test set into the performance change prediction model after training to perform prediction verification, determining the prediction accuracy of the performance change prediction model, and if the accuracy is less than a preset value, adjusting the model parameters until the accuracy is not less than the preset value;

[0103] Acquire current performance change data of the target high-power power supply working under different environmental conditions in the current time period, import the current performance change data into the performance change prediction model, and obtain predicted performance change data under different environmental conditions for the performance change of the target high-power power supply working under different environmental conditions in the future preset time period;

[0104] Performing a clustering operation on the predicted performance change data under the different environmental conditions based on a K-means clustering algorithm, classifying environmental conditions with similar predicted performance change data into one category, and obtaining a clustering result;

[0105] Analyze each type of clustering results, determine the performance degradation trend of the target high-power power supply in each type of clustering results, evaluate the environmental conditions of each type of clustering results according to the performance degradation trend, and classify the environmental conditions included in each type of clustering results into excellent, good, and poor environmental conditions to obtain environmental condition grade data;

[0106] Determine a performance test cycle of a target high-power power supply operating under different environmental conditions according to the environmental condition level data and the predicted performance change data under different environmental conditions, and perform performance tests on the target high-power power supply operating under different environmental conditions according to the performance test cycle to obtain periodic performance test results;

[0107] When the periodic performance test result is lower than the preset performance value, the target high-power power supply whose periodic performance test result is lower than the preset performance value is maintained.

[0108] It should be noted that, since the power supply performance of the target high-power power supply is different under different environmental conditions, and the power supply performance of the target high-power power supply will also decline over time, the performance change prediction model of the target high-power power supply is constructed through LSTM (Long Short-Term Memory Network) to predict the performance change in the future preset time period, and obtain the predicted performance change data under different environmental conditions; based on the K-means clustering algorithm, different environmental conditions are divided into one category according to the predicted performance change data, and the environmental condition data of the predicted performance change data with similar clustering are divided into one category, and the environmental conditions in the clustering results are divided into excellent, good, and poor grades. Each grade represents the performance decline trend of the target high-power power supply working under different environmental conditions, that is, the power supply life working under different environmental conditions; the K-means clustering algorithm can be used to assign grades to different environmental conditions in batches, avoiding manual assignment of grades to each environmental condition one by one, and reducing resource waste; using environmental condition grade data and predicted performance change data, a reasonable performance test cycle is determined. Excellent environmental conditions require a longer test cycle, while poor environmental conditions require more frequent tests. Perform performance tests on the power supply regularly to obtain periodic performance test results. If the periodic performance test results are lower than the preset performance value, it indicates that the power supply performance has degraded and maintenance is required. Timely maintenance can ensure the stable performance of the power supply under various environmental conditions, extend the service life of the power supply, and improve its reliability. By scientifically determining the performance test cycle of the power supply based on the environmental condition level data and the predicted performance change data under different environmental conditions, waste of resources can be avoided. For example, under relatively ideal environmental conditions, the performance of the power supply changes less, the test cycle can be extended, the number of unnecessary tests can be reduced, and manpower and material resources can be saved. However, under harsh environmental conditions, the performance of the power supply may change rapidly, and the test cycle needs to be shortened to ensure that problems are discovered in a timely manner. The Adam optimizer is an optimization algorithm for training deep learning models.

[0109] Figure 4 A block diagram of a high-power power supply testing system based on environmental simulation of the present invention is shown.

[0110] The second aspect of the present invention further provides a high-power power supply test system 4 based on environmental simulation, the system comprising: a memory 41, a processor 42, the memory comprising a high-power power supply test method program based on environmental simulation, the high-power power supply test method program based on environmental simulation when executed by the processor, implements the following steps:

[0111] Obtain a power supply sample of a target high-power power supply, perform a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluate the charge-discharge performance test results of the power supply sample under different environmental conditions;

[0112] Analyze the charge and discharge performance test results based on a regression analysis method to determine the environmental influencing factors that affect the test accuracy and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0113] Acquire the charge and discharge characteristics of the power supply sample during the charge and discharge test, and build a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test;

[0114] Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and obtain simulation test results;

[0115] The simulation test accuracy of the current environmental conditions is evaluated according to the simulation test results, and the current test environmental conditions are adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment plan.

[0116] The present invention discloses a high-power power supply test method and system based on environmental simulation, which is intended to accurately evaluate the charge and discharge performance of a high-power power supply under different environmental conditions. The present invention comprises the following steps: obtaining a target power supply sample and performing charge and discharge tests under different environmental conditions, and evaluating the results; determining environmental influencing factors and their influence on the test results using a regression analysis method; constructing a simulation test model according to the charge and discharge characteristics and environmental influencing factors; importing the current test environmental conditions into the model for simulation testing to obtain simulation test results; evaluating the test accuracy according to the simulation test results, and adjusting the current test environmental conditions to optimize the test results. The present invention improves the accuracy and reliability of high-power power supply testing by comprehensively considering environmental factors, and is suitable for high-power power supply performance evaluation in the industrial and scientific research fields.

[0117] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0118] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0119] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0120] Those skilled in the art can understand that: all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), disks or optical disks, etc. Various media that can store program codes.

[0121] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0122] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high-power power supply testing method based on environmental simulation, characterized in that: The following steps are involved: Obtain a power supply sample of a target high-power power supply, perform a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluate the charge-discharge performance test results of the power supply sample under different environmental conditions; Analyze the charge and discharge performance test results based on a regression analysis method to determine the environmental influencing factors that affect the test accuracy and the influence relationship of each environmental influencing factor on the charge and discharge performance test; Acquire the charge and discharge characteristics of the power supply sample during the charge and discharge test, and build a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test; Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and obtain simulation test results; Evaluate the simulation test accuracy of the current environmental conditions according to the simulation test results, adjust the current test environmental conditions according to the simulation test accuracy, and obtain a test environmental condition adjustment plan; The simulation test accuracy of the current environmental condition is evaluated according to the simulation test result, and the current test environmental condition is adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment plan, specifically: According to the influence relationship of each environmental influencing factor on the charge and discharge performance test, the test accuracy of the simulation test results of the target high-power power supply under the current test environment conditions is evaluated to obtain the test accuracy data of the target high-power power supply under the current test environment; Determining the environmental conditions to be adjusted according to the test accuracy data and the degree of influence of each test environmental factor on the test accuracy of the charge and discharge performance, and determining the adjustment priority of the environmental conditions to be adjusted according to the degree of influence; The adjustment direction of the test environmental conditions of the target high-power power supply is determined according to the simulation test accuracy data and the environmental conditions-charge and discharge performance relationship curve diagram, and the test environmental conditions of the target high-power power supply are adjusted according to the environmental conditions to be adjusted, the adjustment priority of the environmental conditions, and the adjustment direction.

2. A high-power power supply testing method based on environmental simulation according to claim 1, characterized in that: The obtaining of a power supply sample of a target high-power power supply, performing a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluating the charge-discharge performance test results of the power supply sample under different environmental conditions are specifically as follows: Obtain power samples and actual performance data of the target high-power power supply, build an environmental simulation cabin, obtain historical test data of the target high-power power supply, and obtain a range of changes in historical test environmental conditions based on the historical test data, wherein the test environmental conditions include temperature, humidity, air pressure, and magnetic field strength; Taking values ​​of the historical test environmental condition variation range according to a preset step length to obtain an environmental condition test value of the power supply sample; The power supply sample is placed in the environmental simulation chamber, and a charge-discharge performance test is performed on each test environmental factor according to the environmental condition test value based on the control variable method, and the temperature change, capacity change, resistance change, voltage and current change of the power supply sample under each environmental condition test value are recorded in real time to obtain performance parameter change data of the power supply sample; Determine the charging efficiency, discharging efficiency and cycle life of the power supply sample under different environmental conditions according to the performance parameter change data to evaluate the performance under different environmental conditions, and obtain performance evaluation results under different environmental conditions; Compare the performance evaluation results under the different environmental conditions with the actual performance data of the power supply sample, and analyze the performance deviation between the performance test of the power supply sample under different environmental conditions and the actual performance; The performance evaluation accuracy of power supply samples under different environmental conditions is determined based on the performance deviation, and the charging and discharging performance test results of the power supply samples under different environmental conditions are obtained. The charging and discharging performance test results include performance parameter change data of the power supply samples, performance evaluation results under different environmental conditions, performance deviation between the performance test of the power supply samples under different environmental conditions and the actual performance, and performance evaluation accuracy.

3. A high-power power supply testing method based on environmental simulation according to claim 1, characterized in that: The charge-discharge performance test results are analyzed based on the regression analysis method to determine the environmental impact factors that affect the test accuracy and the impact relationship of each environmental impact factor on the charge-discharge performance test, specifically: Based on the regression analysis method, the charge and discharge performance test results under the different environmental conditions are subjected to regression analysis, and the charge efficiency, discharge efficiency and cycle life under different environmental conditions are used as dependent variables, and the test environment factor is used as an independent variable to construct a regression equation; Calculating the regression coefficient of the regression equation under each environmental condition based on the least squares method, performing a t test on the regression coefficient under each environmental condition to obtain a t value, and judging the significance of the regression coefficient of the regression equation under each environmental condition according to the t value and a t value distribution table; Determine the influence of each test environment factor on the test accuracy of charge and discharge performance according to the significance of the regression coefficient of the regression equation under each environmental condition, and mark the test environment factor with an influence greater than a preset value as an environmental influence factor that will affect the test accuracy of charge and discharge of the power supply sample; Draw an environmental condition-charge and discharge performance relationship curve diagram for each test environmental factor in the charge and discharge performance test and the charge and discharge performance test result; The influence relationship of different environmental influencing factors on the charge and discharge performance test is determined according to the environmental condition-charge and discharge performance relationship curve diagram, and the influence relationship includes the charging efficiency influence relationship, the discharge efficiency influence relationship, the power supply capacity influence relationship, and the charge and discharge test accuracy influence relationship.

4. A high-power power supply testing method based on environmental simulation according to claim 1, characterized in that: The acquiring of the charge and discharge characteristics of the power supply sample during the charge and discharge test, and the building of a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test, are specifically as follows: Collecting charge and discharge characteristic data of power supply samples during charge and discharge tests under different environmental conditions, wherein the charge and discharge characteristic data includes a charge current and voltage curve, a discharge current and voltage curve, and a temperature change curve; Extracting charging and discharging characteristics of power supply samples for performance testing under different environmental conditions according to the charging and discharging characteristic data, wherein the charging and discharging characteristics include charging rate, discharging rate, maximum charging voltage and current, minimum charging voltage and current, and temperature rise rate; An equivalent circuit model of the target high-power power supply is constructed based on the RC model, and the charge and discharge characteristics of the equivalent circuit model in the charge and discharge process are limited according to the charge and discharge characteristic data, and the equivalent circuit model is fitted according to the influence relationship of each environmental influencing factor on the charge and discharge performance test to obtain a simulation test model of the target high-power power supply.

5. The high-power power supply testing method based on environmental simulation according to claim 1, characterized in that: The current test environment condition of the target high-power power source is obtained, and the current test environment condition is imported into the simulation test model to perform simulation test, and obtain the simulation test result, specifically: Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and calculate and simulate the charge and discharge characteristics of the target high-power power supply under the current test environment conditions; According to the charge and discharge characteristics under the current test environment conditions, the current charging efficiency, current discharge efficiency, and current cycle life of the target high-power power supply are calculated for evaluation, and the simulation test results under the current environmental conditions are obtained.

6. A high-power power supply test system based on environmental simulation, characterized in that: The high-power power supply test system based on environmental simulation includes a storage and a processor, wherein the storage includes a high-power power supply test method program based on environmental simulation, and when the high-power power supply test method program based on environmental simulation is executed by the processor, the following steps are implemented: Obtain a power supply sample of a target high-power power supply, perform a charge-discharge performance test on the power supply sample under different environmental conditions, and evaluate the charge-discharge performance test results of the power supply sample under different environmental conditions; Analyze the charge and discharge performance test results based on a regression analysis method to determine the environmental influencing factors that affect the test accuracy and the influence relationship of each environmental influencing factor on the charge and discharge performance test; Acquire the charge and discharge characteristics of the power supply sample during the charge and discharge test, and build a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test; Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and obtain simulation test results; Evaluate the simulation test accuracy of the current environmental conditions according to the simulation test results, adjust the current test environmental conditions according to the simulation test accuracy, and obtain a test environmental condition adjustment plan; The simulation test accuracy of the current environmental condition is evaluated according to the simulation test result, and the current test environmental condition is adjusted according to the simulation test accuracy to obtain a test environmental condition adjustment plan, specifically: According to the influence relationship of each environmental influencing factor on the charge and discharge performance test, the test accuracy of the simulation test results of the target high-power power supply under the current test environment conditions is evaluated to obtain the test accuracy data of the target high-power power supply under the current test environment; Determining the environmental conditions to be adjusted according to the test accuracy data and the degree of influence of each test environmental factor on the test accuracy of the charge and discharge performance, and determining the adjustment priority of the environmental conditions to be adjusted according to the degree of influence; The adjustment direction of the test environmental conditions of the target high-power power supply is determined according to the simulation test accuracy data and the environmental conditions-charge and discharge performance relationship curve diagram, and the test environmental conditions of the target high-power power supply are adjusted according to the environmental conditions to be adjusted, the adjustment priority of the environmental conditions, and the adjustment direction.

7. A high-power power supply test system based on environmental simulation according to claim 6, characterized in that: The acquiring of the charge and discharge characteristics of the power supply sample during the charge and discharge test, and the building of a simulation test model of the target high-power power supply according to the charge and discharge characteristics and the influence relationship of each environmental influencing factor on the charge and discharge performance test, are specifically as follows: Collecting charge and discharge characteristic data of power supply samples during charge and discharge tests under different environmental conditions, wherein the charge and discharge characteristic data includes a charge current and voltage curve, a discharge current and voltage curve, and a temperature change curve; Extracting charging and discharging characteristics of power supply samples for performance testing under different environmental conditions according to the charging and discharging characteristic data, wherein the charging and discharging characteristics include charging rate, discharging rate, maximum charging voltage and current, minimum charging voltage and current, and temperature rise rate; An equivalent circuit model of the target high-power power supply is constructed based on the RC model, and the charge and discharge characteristics of the equivalent circuit model in the charge and discharge process are limited according to the charge and discharge characteristic data, and the equivalent circuit model is fitted according to the influence relationship of each environmental influencing factor on the charge and discharge performance test to obtain a simulation test model of the target high-power power supply.

8. A high-power power supply test system based on environmental simulation according to claim 6, characterized in that: The current test environment condition of the target high-power power source is obtained, and the current test environment condition is imported into the simulation test model to perform simulation test, and obtain the simulation test result, specifically: Acquire the current test environment conditions of the target high-power power supply, import the current test environment conditions into the simulation test model to perform simulation testing, and calculate and simulate the charge and discharge characteristics of the target high-power power supply under the current test environment conditions; According to the charge and discharge characteristics under the current test environment conditions, the current charging efficiency, current discharge efficiency, and current cycle life of the target high-power power supply are calculated for evaluation, and the simulation test results under the current environmental conditions are obtained.

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