Air-gap solid-sealed pole performance test platform and test method considering ambient humidity

Abstract

This invention relates to the field of electrical equipment testing technology, and more particularly to a performance testing platform and method for air-gap solid-sealed poles that takes into account environmental humidity. The platform comprises: a power frequency voltage generator connected to a first high-voltage test electrode via a voltage divider to generate a power frequency voltage; a first high-voltage test electrode and a second high-voltage test electrode spaced apart within a high-voltage test chamber, forming a test station for mounting the air-gap solid-sealed pole; a second high-voltage test electrode connected to a grounding grid; a current sensor fitted onto the connection line between the second high-voltage test electrode and the grounding grid; a voltage divider for measuring the voltage of the air-gap solid-sealed pole; a data acquisition device connected to the voltage divider and the current sensor; and a host computer connected to the power frequency voltage generator, a humidity monitoring and control device, and the data acquisition device. This invention can truly reflect the actual working conditions of the air-gap solid-sealed pole and provides a basis for performance evaluation of air-gap solid-sealed poles that takes into account environmental humidity.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment testing technology, and in particular to a performance testing platform and method for an air gap type solid-sealed pole that takes into account ambient humidity. Background Technology

[0002] Air gap type solid seal pole is an integrated pole in which the vacuum interrupter and the conductive end are solidified and connected into one piece using insulating materials with sealing properties such as epoxy resin. Because it can use epoxy resin as the main insulation and mechanical support of the vacuum interrupter, it has fewer structural parts, higher conductivity reliability, and overall performance is better than traditional assembled pole.

[0003] The excellent performance of air-gap solid-sealed terminals makes them widely used in the insulation of various electrical equipment. However, the problems that come with them are becoming increasingly prominent. Air-gap solid-sealed terminals on the market often suffer from poor heat dissipation due to the thick epoxy resin seal. Furthermore, prolonged exposure to high temperature, high pressure, and humid working environments leads to a decline in insulation performance and cracking of the epoxy resin, which can have a significant impact on electrical equipment. Therefore, it is particularly important to conduct insulation performance testing on air-gap solid-sealed terminals to ensure their safety and reliability.

[0004] Currently, insulation performance testing for air-gap solid-sealed poles is usually limited to power frequency withstand voltage testing, loop resistance testing, and partial discharge testing, but the influence of humid environment on the insulation performance of air-gap solid-sealed poles during operation is ignored, resulting in inaccurate test results. Summary of the Invention

[0005] This invention provides a performance testing platform and method for air-gap type solid-sealed terminals that takes into account ambient humidity, in order to solve the problem of inaccurate performance testing of solid-sealed terminals.

[0006] The first aspect of this invention provides a performance testing platform for an air-gap type solid-sealed electrode that takes into account environmental humidity, such as... Figure 1 As shown, it includes: an aging test chamber, a first high-voltage test electrode, a second high-voltage test electrode, a voltage divider, a power frequency voltage generator, a humidity measurement and control device, a current sensor, a data acquisition device, a host computer, and a grounding grid;

[0007] The power frequency voltage generator is connected to the first high voltage test electrode through the voltage divider to generate power frequency voltage;

[0008] The first high-voltage test electrode and the second high-voltage test electrode are spaced apart inside the high-voltage test chamber, forming a test station in the middle for setting the air-gap type solid-sealed electrode post, and are respectively connected to the upper electrode and the lower electrode of the air-gap type solid-sealed electrode post.

[0009] The second high-voltage test electrode is connected to the grounding grid;

[0010] The current sensor is sleeved on the connection line between the second high voltage test electrode and the grounding grid, and is used to measure the output current of the air gap solid-sealed electrode.

[0011] The voltage divider is used to measure the voltage of the air-gap solid-sealed electrode;

[0012] The data acquisition device is connected to the voltage divider and the current sensor respectively, and is used to collect the voltage data measured by the voltage divider and the current data collected by the current sensor.

[0013] The host computer is connected to the power frequency voltage generator, the humidity measurement and control device, and the data acquisition device, respectively. It is used to control the power frequency voltage generator to generate voltage according to the preset pressurization time, control the humidity measurement and control device to humidify according to the preset humidity value, and also to acquire and store the current and voltage data of the air gap solid-sealed pole collected by the data acquisition device and the humidity data monitored by the humidity measurement and control device.

[0014] Specifically, the humidity measurement and control device includes: a humidity control unit, a humidification unit, and a humidity monitoring unit;

[0015] The humidity control unit is connected to the host computer and the humidification unit, and is used to control the humidification unit to humidify according to the humidity control signal of the host computer;

[0016] The humidity monitoring unit is connected to the host computer and is used to detect the internal humidity of the aging test chamber and send it to the host computer.

[0017] Specifically, it also includes: the first grounding electrode and the second grounding electrode;

[0018] The voltage divider is connected to the first grounding electrode;

[0019] The power frequency voltage generator is connected to the second grounding body.

[0020] Specifically, the data acquisition device includes: a data acquisition unit and a wireless transceiver unit;

[0021] The data acquisition unit is connected to the voltage divider, the current sensor and the wireless transceiver unit respectively, and is used to collect the voltage data measured by the voltage divider and the current data collected by the current sensor, and send them to the wireless transceiver unit.

[0022] The wireless transceiver unit is wirelessly connected to the host computer and is used for wireless data transmission with the host computer.

[0023] Specifically, the aging test chamber is in a sealed state.

[0024] The present invention also provides a method for assessing the performance of an air-gap type solid-sealed electrode that takes into account ambient humidity, specifically including the following steps:

[0025] S1: Monitor the humidity inside the aging test chamber through the humidity measurement and control device, increase the humidity inside the aging test chamber to the preset humidity value, and maintain the humidity; control the power frequency voltage generator to generate a stable voltage according to the preset voltage value and the preset voltage application duration.

[0026] S2: The voltage data and output current data of the air gap solid-sealed electrode under test are collected by the voltage divider and the current sensor, and uploaded to the host computer to calculate the first working resistance of the air gap solid-sealed electrode for each test and store it, and then the test ends.

[0027] S3: Increase the humidity inside the aging test chamber and the duration of the applied voltage;

[0028] S4: Repeat steps S2-S3 until the humidity in the aging test chamber increases to the highest preset humidity value and the voltage application time increases to the highest preset voltage application time, then end the test;

[0029] S5: Establish a first functional relationship between the humidity in the aging test chamber, the duration of voltage application, the error factor, and the working resistance of the air gap solid-sealed electrode. Substitute the humidity in the aging test chamber and the duration of voltage application in each test into the first functional relationship to obtain the second working resistance of the air gap solid-sealed electrode corresponding to each test.

[0030] S6: Establish a second functional relationship between the first working resistor, the second working resistor, the number of tests, and the error factor. Substitute the first and second working resistors corresponding to each test into the second functional relationship for iterative calculation until the correction error factor that minimizes the error between the first and second working resistors is obtained.

[0031] S7: Substitute the correction error factor into the first functional relationship to obtain the corrected working resistance of the air gap solid-sealed pole.

[0032] S8: Based on the corrected working resistance of the air-gap solid-sealed pole and the preset reference working resistance, calculate the insulation performance evaluation factor of the air-gap solid-sealed pole.

[0033] S9: Based on the preset range of insulation performance evaluation factors, obtain the insulation performance test results of the air gap type solid-sealed pole specimen.

[0034] Specifically, step S6 includes the following steps:

[0035] S61: Establish a functional relationship between the first working resistance value, the second working resistance value, and the error factor y;

[0036] S62: Execute the annealing algorithm, randomly generate an initial solution for the error factor y, calculate the objective function f(y), and set the number of iterations;

[0037] S63: Generate a new perturbation solution y', and calculate the objective function Δf = f(y) - f(y'); if Δf ≥ 0, then accept the new perturbation solution y'; otherwise, accept the new solution according to the probability acceptance criterion.

[0038] S64: Determine if the number of iterations has been reached. If the number of iterations has been reached, proceed to step S64; otherwise, re-enter step S62.

[0039] S65: Determine whether the termination condition is met. If it is, the operation ends and y' is output as the correction error factor. Otherwise, reset the iteration count and proceed to step S62.

[0040] Specifically, in step S3, increasing the humidity inside the aging test chamber and the duration of voltage application are as follows:

[0041] The humidity value inside the aging test chamber is increased at equal intervals according to the preset humidity intervals.

[0042] The applied voltage duration is increased according to the preset pressurization time interval.

[0043] Specifically, in step S9, obtaining the insulation performance test results of the air-gap type solid-sealed pole specimen based on a preset performance evaluation factor range specifically involves:

[0044] When the evaluation factor α∈(0,10], it indicates that the air-gap solid-sealed pole insulation is normal; when the evaluation factor α∈(10,50], it indicates that the air-gap solid-sealed pole insulation is deteriorated; when the evaluation factor α∈(50,+∞), it indicates that the air-gap solid-sealed pole insulation is ineffective.

[0045] Specifically, the new perturbation solution y' is obtained by multiplying the initial solution of the error factor y by an attenuation coefficient, the attenuation coefficient being in the range of 0.95-0.99.

[0046] The beneficial effects of this invention are as follows: An embodiment of this invention provides a performance testing platform for an air-gap type solid-sealed electrode that takes into account environmental humidity. The platform includes: an aging test chamber, a first high-voltage test electrode, a second high-voltage test electrode, a voltage divider, a power frequency voltage generator, a humidity measurement and control device, a current sensor, a data acquisition device, a host computer, and a grounding grid. The power frequency voltage generator is connected to the first high-voltage test electrode via the voltage divider to generate a power frequency voltage. The first and second high-voltage test electrodes are spaced apart within the high-voltage test chamber, forming a test station for setting the air-gap type solid-sealed electrode. The second high-voltage test electrode is connected to the grounding grid. The current sensor is sleeved between the second high-voltage test electrode and the grounding grid. The connection line between the ground grids is used to test the output current of the air-gap solid-sealed electrode; the voltage divider is used to measure the voltage of the air-gap solid-sealed electrode; the data acquisition device is connected to the voltage divider and the current sensor respectively, and is used to monitor the humidity inside the aging test chamber and humidify the inside of the aging test chamber according to the preset humidity; the host computer is connected to the power frequency voltage generator, the humidity measurement and control device and the data acquisition device respectively, and is used to control the power frequency voltage generator to generate voltage according to the preset pressurization time, control the humidity measurement and control device to humidify according to the preset humidity gradient value, and also to acquire and store the current and voltage data of the air-gap solid-sealed electrode collected by the data acquisition device and the humidity data monitored by the humidity measurement and control device.

[0047] The air-gap solid-sealed electrode performance testing platform provided by this invention, which takes into account environmental humidity, can provide the air-gap solid-sealed electrode under test with a working voltage and humidity environment equivalent to the working environment through a power frequency voltage generator and a humidity measurement and control device. It can also monitor the humidity in the test environment in real time through the humidity measurement and control device, and collect the working voltage and current of the air-gap solid-sealed electrode through a voltage divider and a current sensor and send them to the host computer for recording. This truly realizes the actual working condition of the air-gap solid-sealed electrode and provides a basis for the performance evaluation of air-gap solid-sealed electrodes that take into account environmental humidity.

[0048] The present invention provides a method for testing the performance of air-gap solid-sealed terminals considering ambient humidity. This method is applied to a performance testing platform for air-gap solid-sealed terminals considering ambient humidity and includes the following steps: S1: Monitor the humidity inside the aging test chamber using a humidity control device, increase the humidity inside the aging test chamber to a preset humidity value, and maintain the humidity; control the power frequency voltage generator to generate a stable voltage according to a preset voltage value and a preset applied voltage duration; S2: Collect voltage data and output current data across the air-gap solid-sealed terminal under test using a voltage divider and a current sensor, upload them to a host computer to calculate and store the first working resistance of the air-gap solid-sealed terminal corresponding to each test, and end one test; S3: Increase the humidity inside the aging test chamber and the applied voltage duration; S4: Repeat steps S2-S3 until the humidity inside the aging test chamber increases to the highest preset humidity value and the applied voltage duration increases to the highest preset applied voltage duration, and end the test; S5: Establish information on the humidity inside the aging test chamber, the applied voltage duration, and the applied voltage duration. The first functional relationship between the voltage application duration and error factor and the working resistance of the air-gap solid-sealed electrode is established. The humidity and voltage application duration in the aging chamber for each test are substituted into this first functional relationship to obtain the second working resistance of the air-gap solid-sealed electrode for each test. S6: A second functional relationship is established between the first working resistance, the second working resistance, the number of tests, and the error factor. The first and second working resistances for each test are substituted into this second functional relationship for iterative calculation until a corrected error factor that minimizes the error between the first and second working resistances is obtained. S7: The corrected error factor is substituted into the first functional relationship to obtain the corrected working resistance of the air-gap solid-sealed electrode. S8: Based on the corrected working resistance of the air-gap solid-sealed electrode and the preset reference working resistance, the insulation performance evaluation factor of the air-gap solid-sealed electrode is calculated. S9: Based on the range of the preset insulation performance evaluation factor, the insulation performance test results of the air-gap solid-sealed electrode sample are obtained.

[0049] The present invention provides a method for testing the performance of air-gap solid-sealed terminals, taking into account environmental humidity, on a performance testing platform for air-gap solid-sealed terminals. This method obtains the first working resistance of the air-gap solid-sealed terminal by acquiring voltage and output current data across its terminals. It then obtains the second working resistance by considering the humidity in the aging chamber, the duration of voltage application, and the number of experiments in each test. The method corrects the error between the first and second working resistances through iterative calculations, resulting in a corrected working resistance. Finally, it determines the degree of performance degradation of the air-gap solid-sealed terminal that best reflects actual operating conditions using the corrected working resistance, thereby improving the accuracy of performance testing. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a schematic diagram of the performance testing platform for air-gap solid-sealed poles.

[0052] Figure 2 Flowchart of the performance testing method for air-gap solid-sealed poles;

[0053] Figure labels: 1-Aging test chamber; 2-First high voltage test electrode; 3-Second high voltage test electrode; 4-Voltage divider; 5-Power frequency voltage generator; 6-Humidity measurement and control device; 7-Current sensor; 8-Data acquisition device; 9-Host computer; 10-Grounding grid. Detailed Implementation

[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] The first aspect of this invention provides a performance testing platform for an air-gap type solid-sealed electrode that takes into account ambient humidity. Please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of the performance testing platform for air-gap solid-sealed poles.

[0056] In this embodiment, the air gap type solid-sealed electrode performance test platform that takes into account the ambient humidity includes: aging test chamber 1, first high voltage test electrode 2, second high voltage test electrode 3, voltage divider 4, power frequency voltage generator 5, humidity measurement and control device 6, current sensor 7, data acquisition device 8, host computer 9, and grounding grid 10.

[0057] The power frequency voltage generator 5 is connected to the first high voltage test electrode 2 through the voltage divider 4 to generate power frequency voltage;

[0058] The first high-voltage test electrode 2 and the second high-voltage test electrode 3 are spaced apart inside the high-voltage test chamber 1, forming a test station in the middle for setting the air gap type solid-sealed electrode post, which is connected to the upper electrode and the lower electrode of the air gap type solid-sealed electrode post respectively.

[0059] The second high-voltage test electrode 3 is connected to the grounding grid 10 and is used to guide the output current of the air-gap type solid-sealed electrode into the ground.

[0060] The current sensor 7 is connected to the connection line between the second high voltage test electrode 3 and the grounding grid 10, and is used to measure the output current of the air gap type solid-sealed pole.

[0061] Voltage divider 4 is used to measure the voltage of the air-gap solid-sealed pole;

[0062] The data acquisition device 8 is connected to the voltage divider 4 and the current sensor 7 respectively, and is used to acquire the voltage data measured by the voltage divider 4 and the current data acquired by the current sensor 7.

[0063] The humidity monitoring and control device 6 is installed inside the aging test chamber 1 to monitor the humidity inside the aging test chamber 1 and to humidify the inside of the aging test chamber 1 according to the preset humidity.

[0064] The host computer 9 is connected to the power frequency voltage generator 5, the humidity measurement and control device 6, and the data acquisition device 8 respectively. It is used to control the power frequency voltage generator 5 to generate voltage according to the preset pressurization time, control the humidity measurement and control device to humidify according to the preset humidity value, and also to acquire and store the current and voltage data of the air gap solid-sealed pole collected by the data acquisition device and the humidity data monitored by the humidity measurement and control device.

[0065] In the specific implementation process, the humidity measurement and control device 6 is controlled to humidify according to the preset humidity value and monitor the humidity in the aging test chamber 1. When the humidity value in the aging test chamber 1 increases to the preset humidity, humidification is stopped and the humidity is maintained. The power frequency voltage generator 5 is controlled to generate a stable voltage according to the preset voltage value and preset pressurization time. The voltage data and output current data at both ends of the air gap solid-sealed pole under test are collected by the voltage divider 4 and the current sensor 7 and uploaded to the host computer 9 for storage.

[0066] The tester increases the preset humidity value at fixed intervals and increases the preset pressurization time at fixed intervals, then conducts the test again and records the results on the host computer until the preset humidity value increased at fixed intervals exceeds the maximum preset humidity value, at which point the test ends.

[0067] In another embodiment of the present invention, the power frequency voltage generator 5 and the voltage divider 4 are connected by a high-voltage cable.

[0068] In another embodiment of the present invention, the humidity measurement and control device 6 includes: a humidity control unit, a humidification unit, and a humidity monitoring unit;

[0069] The humidity control unit is connected to the host computer and the humidification unit, and is used to control the humidification unit to humidify according to the humidity control signal of the host computer 9;

[0070] The humidity monitoring unit is connected to the host computer 9 and is used to detect the internal humidity of the aging test chamber 1 and send it to the host computer 9.

[0071] In another embodiment of the present invention, the air gap type solid-sealed pole performance test platform considering ambient humidity provided by the present invention further includes: a first grounding body and a second grounding body;

[0072] The first grounding electrode is connected to the voltage divider, and the second grounding electrode is connected to the power frequency voltage generator. Both the first and second grounding electrodes are used to ensure the safety of equipment and personnel.

[0073] In another embodiment of the present invention, the data acquisition device includes: a data acquisition unit and a wireless transceiver unit;

[0074] The data acquisition unit is connected to the voltage divider, the current sensor, and the wireless transceiver unit respectively. It is used to collect the voltage data measured by the voltage divider and the current data collected by the current sensor, and send them to the wireless transceiver unit.

[0075] The wireless transceiver unit is wirelessly connected to the host computer for wireless data transmission between them.

[0076] In another specific embodiment of the present invention, the aging test chamber is in a sealed state to ensure that humidity and heat are not lost during the test.

[0077] Another aspect of the present invention provides an embodiment of a method for testing the performance of an air-gap type solid-sealed electrode that takes into account ambient humidity, such as... Figure 2 As shown, the specific steps include:

[0078] S1: Monitor the humidity inside the aging test chamber, increase the humidity value inside the aging test chamber to the preset humidity w, and maintain the humidity; according to the preset voltage value U and the preset voltage application time h... t Control the power frequency voltage generator to produce a stable voltage;

[0079] S2: The voltage data U across the air-gap solid-sealed electrode under test is acquired through a voltage divider and a current sensor. c and output current data I c The data is then uploaded to the host computer to calculate the first working resistance R of the air-gap solid-sealed electrode for each test. c Store the data to end the test.

[0080] S3: Increase the humidity w in the aging test chamber according to the preset humidity interval, and increase the applied voltage duration h according to the preset time interval;

[0081] S4: Repeat steps S2-S3 until the preset humidity value is increased to w zThe preset voltage application duration is increased to h, then the test ends;

[0082] S5: The first functional relationship regarding the second working resistance of the air-gap solid-sealed pole is established as follows:

[0083]

[0084] Where: h t The preset voltage application duration is given for the i-th test, k is the environmental humidity influence coefficient, and w ic w represents the humidity inside the aging test chamber during the i-th test. b The humidity inside the aging test chamber before the test is y, the error factor is s, the integral variable is N, and the number of tests is N.

[0085] S6: Establish the first working resistance R c Second working resistor R j The second functional relationship between the number of tests N and the error factor is used to determine the first working resistance R corresponding to the i-th test. ci Second working resistor R ji Substitute the second functional relationship into the iterative calculation until the value of the correction error factor y' that minimizes the error between the first and second working resistors is obtained;

[0086] S7: Substitute the value of the correction error factor y' into formula (1) to obtain the corrected working resistance value R of the air gap solid-sealed pole. j The formula is as follows:

[0087]

[0088] S8: The insulation performance evaluation factor α of the air-gap solid-sealed pole is calculated, and the formula is as follows:

[0089]

[0090] Where R j 'R represents the working resistance of the optimized air-gap solid-sealed electrode sample.' b Preset reference working resistance;

[0091] S9: When α∈(0,10], it indicates that the air gap type solid-sealed pole insulation is normal; when α∈(10,50], it indicates that the air gap type solid-sealed pole insulation is deteriorated; when α∈(50,+∞), it indicates that the air gap type solid-sealed pole insulation fails.

[0092] In another specific embodiment, step S6 specifically includes:

[0093] S61: Establish the first working resistance value R c Second working resistance value R jThe functional relationship between the error factor y and the error factor y is as follows:

[0094]

[0095] In the formula: R ci R is the value of the first working resistance of the air-gap solid-sealed electrode in the i-th test. ji is the value of the second working resistance of the air-gap solid-sealed electrode in the i-th test, and N is the total number of tests;

[0096] S62: Execute the annealing algorithm, randomly generate an initial solution for the error factor y, calculate the objective function f(y), and set the number of iterations;

[0097] S63: Generate a new perturbation solution y', and calculate the objective function Δf = f(y) - f(y'); if Δf ≥ 0, then accept the new perturbation solution y'; otherwise, accept the new solution according to the probability acceptance criterion.

[0098] S64: Determine if the number of iterations has been reached. If the number of iterations has been reached, proceed to step S64; otherwise, re-enter step S62.

[0099] S65: Determine whether the termination condition is met. If it is, the operation ends and y' is output as the correction error factor. Otherwise, reset the iteration count and proceed to step S62.

[0100] In another specific embodiment of the present invention, the new perturbation solution y' is obtained by multiplying the initial solution of the error factor y by an attenuation coefficient, the attenuation coefficient being in the range of 0.95-0.99.

[0101] In another specific embodiment of the present invention, the probability acceptance criterion is the Metropolis criterion.

[0102] In another specific embodiment of the present invention, increasing the preset humidity value and the duration of voltage application specifically involves:

[0103] The preset humidity value w is increased at equal intervals according to the preset humidity value interval Δw;

[0104] The applied voltage duration h is increased at equal intervals according to the preset pressurization duration interval Δh.

[0105] The terms “first,” “second,” “third,” “fourth,” etc. (if applicable) used in this application are to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0106] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0107] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

Claims

1. A test method for a performance testing platform for air-gap solid-sealed terminals considering ambient humidity, wherein the performance testing platform for air-gap solid-sealed terminals considering ambient humidity comprises: Aging test chamber, first high voltage test electrode, second high voltage test electrode, voltage divider, power frequency voltage generator, humidity measurement and control device, current sensor, data acquisition device, host computer, grounding grid; The power frequency voltage generator is connected to the first high voltage test electrode through the voltage divider to generate power frequency voltage; The first high-voltage test electrode and the second high-voltage test electrode are spaced apart inside the high-voltage test chamber, forming a test station in the middle for setting the air-gap type solid-sealed electrode post, and are respectively connected to the upper electrode and the lower electrode of the air-gap type solid-sealed electrode post. The second high-voltage test electrode is connected to the grounding grid; The current sensor is sleeved on the connection line between the second high voltage test electrode and the grounding grid, and is used to measure the output current of the air gap solid-sealed electrode. The voltage divider is used to measure the voltage of the air-gap solid-sealed electrode; The data acquisition device is connected to the voltage divider and the current sensor respectively, and is used to collect the voltage data measured by the voltage divider and the current data collected by the current sensor. The host computer is connected to the power frequency voltage generator, the humidity measurement and control device and the data acquisition device respectively. It is used to control the power frequency voltage generator to generate voltage according to the preset pressurization time, control the humidity measurement and control device to humidify according to the preset humidity value, and also to acquire and store the current data and voltage data of the air gap solid-sealed pole collected by the data acquisition device and the humidity data monitored by the humidity measurement and control device. Its features include the following steps: S1: Monitor the humidity inside the aging test chamber through the humidity measurement and control device, increase the humidity inside the aging test chamber to the preset humidity value, and maintain the humidity; control the power frequency voltage generator to generate a stable voltage according to the preset voltage value and the preset voltage application duration. S2: The voltage data and output current data of the air gap solid-sealed electrode under test are collected by the voltage divider and the current sensor, and uploaded to the host computer to calculate the first working resistance of the air gap solid-sealed electrode for each test and store it, and then the test ends. S3: Increase the humidity inside the aging test chamber and the duration of the applied voltage; S4: Repeat steps S2-S3 until the humidity in the aging test chamber increases to the highest preset humidity value and the voltage application time increases to the highest preset voltage application time, then end the test; S5: Establish a first functional relationship between the humidity in the aging test chamber, the duration of voltage application, the error factor, and the working resistance of the air gap solid-sealed electrode. Substitute the humidity in the aging test chamber and the duration of voltage application in each test into the first functional relationship to obtain the second working resistance of the air gap solid-sealed electrode corresponding to each test. S6: Establish a second functional relationship between the first working resistor, the second working resistor, the number of tests, and the error factor. Substitute the first and second working resistors corresponding to each test into the second functional relationship for iterative calculation until the correction error factor that minimizes the error between the first and second working resistors is obtained. S7: Substitute the correction error factor into the first functional relationship to obtain the corrected working resistance of the air gap solid-sealed pole. S8: Based on the corrected working resistance of the air-gap solid-sealed pole and the preset reference working resistance, calculate the insulation performance evaluation factor of the air-gap solid-sealed pole. S9: Based on the preset range of insulation performance evaluation factors, obtain the insulation performance test results of the air gap type solid-sealed pole specimen.

2. The test method for the performance testing platform of the air-gap type solid-sealed pole considering environmental humidity as described in claim 1, characterized in that, The humidity measurement and control device includes: a humidity control unit, a humidification unit, and a humidity monitoring unit; The humidity control unit is connected to the host computer and the humidification unit, and is used to control the humidification unit to humidify according to the humidity control signal of the host computer; The humidity monitoring unit is connected to the host computer and is used to detect the internal humidity of the aging test chamber and send it to the host computer.

3. The test method for the performance testing platform of the air-gap type solid-sealed pole considering environmental humidity as described in claim 1, characterized in that, Also includes: First grounding electrode and second grounding electrode; The voltage divider is connected to the first grounding electrode; The power frequency voltage generator is connected to the second grounding body.

4. The test method for the performance testing platform of the air-gap type solid-sealed pole considering ambient humidity as described in claim 1, characterized in that, The data acquisition device includes: a data acquisition unit and a wireless transceiver unit; The data acquisition unit is connected to the voltage divider, the current sensor and the wireless transceiver unit respectively, and is used to acquire the voltage data measured by the voltage divider and the current data acquired by the current sensor, and send them to the wireless transceiver unit. The wireless transceiver unit is wirelessly connected to the host computer and is used for wireless data transmission with the host computer.

5. The test method for the performance testing platform of the air-gap type solid-sealed pole considering environmental humidity as described in claim 1, characterized in that, The aging test chamber is sealed.

6. The test method for the performance testing platform of the air-gap type solid-sealed electrode considering ambient humidity as described in claim 1, characterized in that, Step S6 specifically includes the following steps: S61: Establish a functional relationship between the first working resistance value, the second working resistance value, and the error factor y; S62: Execute the annealing algorithm, randomly generate an initial solution for the error factor y, calculate the objective function f(y), and set the number of iterations; S63: Generate a new perturbation solution y Calculate the objective function ;like Then accept the new solution y with perturbation. Otherwise, accept the new solution according to the probability acceptance criterion; S64: Determine if the number of iterations has been reached. If the number of iterations has been reached, proceed to step S65; otherwise, re-enter step S62. S65: Determine if the termination condition is met. If it is, the operation ends, and y is set to 0. Output as a correction error factor; otherwise, reset the iteration count and proceed to step S62.

7. The test method for the performance testing platform of the air-gap type solid-sealed pole considering environmental humidity as described in claim 1, characterized in that, In step S3, increasing the humidity inside the aging test chamber and the duration of voltage application specifically involve: The humidity value inside the aging test chamber is increased at preset intervals. The applied voltage duration is increased according to the preset pressurization time interval.

8. The test method for the performance testing platform of the air-gap solid-sealed pole considering ambient humidity as described in claim 1, characterized in that, In step S9, obtaining the insulation performance test results of the air-gap type solid-sealed pole specimen based on a preset performance evaluation factor range specifically involves: When the evaluation factor α∈(0,10], it indicates that the air-gap solid-sealed pole insulation is normal; when the evaluation factor α∈(10,50], it indicates that the air-gap solid-sealed pole insulation is deteriorated; when the evaluation factor α∈(50,+∞), it indicates that the air-gap solid-sealed pole insulation is ineffective.

9. The test method for the performance testing platform of the air-gap solid-sealed pole considering ambient humidity as described in claim 6, characterized in that, The new solution to the perturbation y The attenuation coefficient is obtained by multiplying the initial solution of the error factor y, and the value of the attenuation coefficient ranges from 0.95 to 0.99.

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