Transformer substation electromagnetic environment test method and device, computer equipment and storage medium

Abstract

The invention relates to a transformer substation electromagnetic environment testing method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: determining a test site of an electromagnetic environment of a transformer substation; steady-state background testing is carried out at the testing site, and steady-state background testing data are obtained; acquiring the environment humidity of the test site; under the condition that the environment humidity is greater than a first preset humidity threshold value, the horizontal rotation rate of the electromagnetic probe is adjusted according to the environment humidity; according to the adjusted horizontal rotation rate of the electromagnetic probe, performing a transient background test at the test site to obtain transient background test data; according to the steady state background test data and the transient state background test data, training to obtain an electromagnetic environment simulation model; and obtaining electromagnetic environment test data of the transformer substation by using the electromagnetic environment simulation model. By adopting the method, the electromagnetic environment of the transformer substation can be evaluated more comprehensively, and the test accuracy can be improved in an environment with relatively high humidity.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic environment data testing, and in particular to a method, device, computer equipment, computer-readable storage medium and computer program product for testing the electromagnetic environment of a substation. Background Art

[0002] As substation construction continues to expand, the demand for electromagnetic environment testing is also increasing. This is mainly to ensure that the electromagnetic environment of the substation will not have an adverse effect on the surrounding environment and human health; at present, substation electromagnetic environment testing technology has shown a trend of diversification. This includes traditional power outage tests and live detection, as well as intelligent testing using digital instruments and meters. However, with the increasing complexity of substation equipment, electromagnetic environment testing is also facing more technical difficulties. For example, high-frequency, high-power, and multi-functional equipment testing requires more advanced testing technology and equipment. Traditional electromagnetic compatibility testing technology may not be able to meet these needs.

[0003] At present, the electromagnetic environment test of substations is mainly divided into the test of power frequency electric field strength and the test of power frequency magnetic induction strength. The commonly used test equipment mainly includes special probes or electric and magnetic field test instruments. The three-dimensional probe can measure the electric field or magnetic field strength components in three mutually perpendicular directions at a certain point in space. However, the current test limitations are still relatively serious. The most obvious limitation is that the accuracy and stability of the test will be seriously reduced in rainy, foggy and snowy days or when the ambient humidity is high. During the test process, the signal interference around and inside the substation must also be considered.

[0004] Therefore, there is an urgent need for a substation electromagnetic environment testing method, device, computer equipment, computer readable storage medium and computer program product that can more comprehensively evaluate the electromagnetic environment of the substation and improve the accuracy of the test in an environment with high humidity. Summary of the invention

[0005] Based on this, it is necessary to provide a substation electromagnetic environment testing method, device, computer equipment, computer-readable storage medium and computer program product that can more comprehensively evaluate the electromagnetic environment of the substation and improve the accuracy of the test in an environment with high humidity to address the above technical problems.

[0006] In a first aspect, the present application provides a substation electromagnetic environment testing method, comprising:

[0007] Determine the test site for the substation electromagnetic environment;

[0008] Perform a steady-state background test at the test site to obtain steady-state background test data;

[0009] Obtaining the ambient humidity of the test location;

[0010] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0011] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test location to obtain transient background test data;

[0012] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0013] The electromagnetic environment simulation model is used to obtain the electromagnetic environment test data of the substation.

[0014] In one embodiment, the performing of a steady-state background test at the test location to obtain steady-state background test data includes:

[0015] When the substation is operating normally, a non-frequency-selective broadband radiation measuring instrument is used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site, and multiple measurements and average processing are performed to obtain steady-state background test data.

[0016] In one embodiment, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity includes:

[0017] Determining the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity;

[0018] The horizontal rotation rate of the electromagnetic probe is adjusted according to the influence adjustment coefficient.

[0019] In one embodiment, the method further comprises:

[0020] When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

[0021] In one embodiment, determining the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity includes:

[0022] Determine a mathematical model between the ambient humidity and the horizontal rotation rate of the electromagnetic probe;

[0023] The mathematical model is used to dynamically calculate the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity; wherein the mathematical model includes the influence factor of the ambient humidity on the electromagnetic wave propagation speed and the influence factor on the sensitivity of the electromagnetic probe.

[0024] In one of the embodiments, when the ambient humidity is greater than a second preset humidity threshold, shortening the test distance between the substation and the test location includes:

[0025] A distance sensor is used to monitor the test distance between the substation and the test location in real time. When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened, and the pitch angle and power output of the electromagnetic probe are automatically adjusted according to humidity changes.

[0026] In a second aspect, the present application also provides a substation electromagnetic environment testing device, comprising:

[0027] A location determination module is used to determine the test location of the substation electromagnetic environment;

[0028] A testing module, used for performing a steady-state background test at the test site to obtain steady-state background test data;

[0029] An acquisition module, used for acquiring the ambient humidity of the test location;

[0030] An adjustment module, configured to adjust the horizontal rotation rate of the electromagnetic probe according to the ambient humidity when the ambient humidity is greater than a first preset humidity threshold;

[0031] The test module is further used to perform a transient background test at the test location according to the adjusted horizontal rotation rate of the electromagnetic probe to obtain transient background test data;

[0032] A model training module, used for training an electromagnetic environment simulation model according to the steady-state background test data and the transient background test data;

[0033] The environment monitoring module is used to obtain the electromagnetic environment test data of the substation using the electromagnetic environment simulation model.

[0034] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0035] Determine the test site for the substation electromagnetic environment;

[0036] Perform a steady-state background test at the test site to obtain steady-state background test data;

[0037] Obtaining the ambient humidity of the test location;

[0038] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0039] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test location to obtain transient background test data;

[0040] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0041] The electromagnetic environment simulation model is used to obtain the electromagnetic environment test data of the substation.

[0042] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0043] Determine the test site for the substation electromagnetic environment;

[0044] Perform a steady-state background test at the test site to obtain steady-state background test data;

[0045] Obtaining the ambient humidity of the test location;

[0046] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0047] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test location to obtain transient background test data;

[0048] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0049] The electromagnetic environment simulation model is used to obtain the electromagnetic environment test data of the substation.

[0050] In a fifth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0051] Determine the test site for the substation electromagnetic environment;

[0052] Perform a steady-state background test at the test site to obtain steady-state background test data;

[0053] Obtaining the ambient humidity of the test location;

[0054] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0055] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test location to obtain transient background test data;

[0056] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0057] The electromagnetic environment simulation model is used to obtain the electromagnetic environment test data of the substation.

[0058] The above-mentioned substation electromagnetic environment test method, device, computer equipment, computer-readable storage medium and computer program product can comprehensively evaluate the electromagnetic environment of the substation under different operating conditions by conducting steady-state and transient background tests at key test locations in the substation. Considering the influence of ambient humidity on electromagnetic testing and adjusting the rotation rate of the electromagnetic probe accordingly can reduce the interference of humidity on the test results and improve the accuracy of the test data. By dynamically adjusting the test parameters (such as the horizontal rotation rate of the electromagnetic probe) to adapt to different environmental conditions, the flexibility and adaptability of the test method are enhanced. The electromagnetic environment simulation model trained with steady-state and transient background test data can be used to simulate and predict the electromagnetic environment of the substation under various conditions, providing a scientific basis for decision-making. The simulation model can help identify potential electromagnetic environment risks and provide support for safety management and risk prevention of the substation. According to the simulation results, the equipment layout and operation of the substation can be optimized to reduce electromagnetic interference and improve the overall performance of the system. By continuously using the simulation model for testing and analysis, long-term monitoring and trend analysis of the electromagnetic environment of the substation can be achieved, and potential problems can be discovered and solved in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0060] FIG1 is an application environment diagram of a method for testing the electromagnetic environment of a substation in one embodiment;

[0061] FIG2 is a schematic diagram of a flow chart of a method for testing the electromagnetic environment of a substation in one embodiment;

[0062] FIG3 is a schematic diagram of a flow chart of a method for testing the electromagnetic environment of a substation in another embodiment;

[0063] FIG4 is a structural block diagram of a substation electromagnetic environment testing device in one embodiment;

[0064] FIG. 5 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0066] The substation electromagnetic environment test method provided in the embodiment of the present application can be applied to the application environment shown in Figure 1. Among them, the terminal 102 communicates with the server 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers.

[0067] When the ambient humidity is greater than a first preset humidity threshold, server 104 adjusts the horizontal rotation rate of the electromagnetic probe according to the ambient humidity; trains an electromagnetic environment simulation model according to the adjusted horizontal rotation rate of the electromagnetic probe and the steady-state background test data and the transient background test data; and obtains the substation electromagnetic environment test data using the electromagnetic environment simulation model.

[0068] The terminal 102 may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices, and portable wearable devices. The IoT devices may be smart speakers, smart TVs, smart air conditioners, smart car devices, projection devices, etc. Portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. Head-mounted devices may be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc. The server 104 may be an independent physical server, a server cluster or distributed system consisting of multiple physical servers, or a cloud server that provides cloud computing services.

[0069] In an exemplary embodiment, as shown in FIG2 , a method for testing the electromagnetic environment of a substation is provided, which is described by taking the method applied to the server in FIG1 as an example, and includes the following steps S202 to S214. Among them:

[0070] Step S202, determining a test location for the electromagnetic environment of the substation.

[0071] Specifically, first, it is necessary to identify the key locations within the substation, including but not limited to the inlet and outlet ports, equipment areas, control rooms, etc. These areas are usually areas with high electromagnetic radiation intensity or sensitive to the electromagnetic environment. Non-frequency-selective broadband radiation meters and electromagnetic probes are installed at these key locations to facilitate the monitoring of the electromagnetic environment in these areas. By combining electromagnetic monitoring at fixed locations with electromagnetic monitoring at dynamic locations, comprehensive monitoring of the electromagnetic environment of the substation can be achieved. When determining the test location, environmental factors such as humidity and temperature must also be considered, which may affect the propagation and measurement of electromagnetic radiation. Data collection is performed at the determined test location, and then the collected data is analyzed to evaluate the status of the electromagnetic environment. Based on the test results and environmental changes, the test location can be dynamically adjusted to ensure that accurate and comprehensive electromagnetic environment data is continuously obtained.

[0072] Step S204, performing a steady-state background test at a test location to obtain steady-state background test data.

[0073] Specifically, the purpose of the steady-state background test is to obtain the electromagnetic environment baseline data of the substation under normal operating conditions. These data will be used as a reference for subsequent transient tests to evaluate the impact of transient processes on the electromagnetic environment. By comparing the steady-state background data and transient test data, the changes in the electromagnetic environment of the substation under different operating conditions can be evaluated. Use a non-selective broadband radiation meter to measure the power frequency and radio frequency electric and magnetic fields. When the substation is operating normally, multiple measurements are taken at key locations to obtain stable background data. The data from multiple measurements are averaged to reduce random errors and obtain relatively stable background data. The steady-state background test data is recorded and stored for subsequent analysis and comparison.

[0074] Step S206, obtaining the ambient humidity of the test location.

[0075] Specifically, a high humidity environment may increase the propagation attenuation of electromagnetic waves in the air, thus affecting the accuracy of the measurement results. Humidity may affect the electrical performance of the measurement equipment, such as the sensitivity and stability of the probe. According to the measured humidity value, the test parameters, such as the test distance and the rotation rate of the probe, can be adjusted to reduce the impact of humidity on the test results. Humidity data can be used to correct the measurement results to ensure the accuracy and reliability of the data.

[0076] Methods for humidity measurement: A hygrometer can be used at the test site to perform real-time humidity measurements. Record humidity measurements for subsequent analysis and data correction.

[0077] Step S208: When the ambient humidity is greater than a first preset humidity threshold, adjust the horizontal rotation rate of the electromagnetic probe according to the ambient humidity.

[0078] Specifically, according to the performance of the test equipment and the characteristics of the test environment, a first preset humidity threshold (e.g., 50%) is set. When the ambient humidity exceeds this threshold, additional measures need to be taken to ensure the accuracy of the test. Increased humidity may cause the propagation of electromagnetic waves in the air to attenuate, affecting the accuracy of the measurement. Humidity may affect the electrical properties of the measuring equipment, such as the sensitivity and stability of the electromagnetic probe. By increasing the rotation rate of the electromagnetic probe, the time for humidity to affect the electromagnetic probe can be reduced, thereby reducing the negative impact of humidity on the test results. Speeding up the rotation speed of the electromagnetic probe can improve the efficiency of the test and reduce the time required for the test. Record the humidity data before and after the adjustment for subsequent analysis and verification of the adjustment effect. Analyze the test results after adjusting the rotation rate to ensure the accuracy and reliability of the test. Generally, the relationship between the rotation rate of the probe and the humidity can be determined by linear fitting. Adjust the rotation rate of the probe to a new value to adapt to the current humidity conditions.

[0079] Step S210 , performing a transient background test at a test site according to the adjusted horizontal rotation rate of the electromagnetic probe to obtain transient background test data.

[0080] Specifically, transient background testing aims to capture the instantaneous changes in the electromagnetic environment that may occur in the normal operation of the substation, which may be caused by factors such as equipment startup and shutdown, load changes, etc. By comparing with the steady-state background test data, the impact of these transient changes on the electromagnetic environment can be evaluated.

[0081] Changes in ambient humidity may affect the propagation of electromagnetic waves and the performance of electromagnetic probes, so the rotation rate of the electromagnetic probe needs to be adjusted to adapt to these changes. By adjusting the rotation rate, the impact of humidity on probe performance can be reduced and the accuracy of test data can be improved. During the test, the ambient humidity is monitored in real time, and the rotation rate of the probe is adjusted according to humidity changes. Use the adjusted rotation rate to perform transient background tests and collect electromagnetic environment data. The collected transient background test data is recorded and stored for subsequent analysis. Analyze the transient background test data to evaluate the stability and change trend of the electromagnetic environment.

[0082] Step S212: training an electromagnetic environment simulation model based on the steady-state background test data and the transient background test data.

[0083] Specifically, firstly, the steady-state background test data and transient background test data are preprocessed, including: removing outliers and noise to ensure the quality and consistency of the data. The data are standardized to make them on the same scale for easy comparison and analysis.

[0084] Then, extract key features from the preprocessed steady-state background test data and transient background test data, which can represent the main attributes and change trends of the electromagnetic environment. If the data dimension is too high, dimensionality reduction may be required to reduce the computational complexity and improve the generalization ability of the model. According to the data characteristics and analysis purpose, select a suitable simulation model, such as a machine learning model, a physical model, or a hybrid model. Set the model parameters, such as the learning rate, the number of iterations, etc., to optimize the performance of the model. First, use the steady-state background test data to train the model so that it can learn the basic laws of the electromagnetic environment. Then, add the transient background test data to the training process so that the model can capture the dynamic changes of the electromagnetic environment.

[0085] In addition, use methods such as cross-validation to evaluate the accuracy and generalization ability of the model. Analyze the prediction error of the model and identify the deficiencies of the model. Adjust the model parameters based on the validation results to optimize the model performance.

[0086] Step S214: using the electromagnetic environment simulation model to obtain the substation electromagnetic environment test data.

[0087] Specifically, according to the substation operating conditions to be simulated, the corresponding parameters are input, such as equipment load, operation mode, environmental conditions, etc. The simulation model is started and it is allowed to calculate and simulate according to the input parameters and the learned data pattern. The simulation model will output the predicted electromagnetic environment data, including electric field strength, magnetic field strength, radiation level, etc. These data are usually presented in digital form and can be further processed and analyzed. The data generated by the simulation model is compared with the actual test data to evaluate the accuracy and reliability of the model. The simulation results are analyzed to identify the changing trends and potential problems of the electromagnetic environment. The simulation results are used to evaluate the electromagnetic environment risks in the operation of the substation and provide a basis for safety management. Based on the simulation analysis, measures are proposed to optimize the electromagnetic environment of the substation, such as equipment layout adjustment, shielding measures, etc. According to the comparison between the simulation results and the actual test data, the simulation model is continuously iterated and optimized. The simulation data is visualized through charts, graphs, etc. to facilitate understanding and communication. As new test data is obtained, the training data of the model is updated to improve the prediction ability of the model.

[0088] In the above-mentioned substation electromagnetic environment test method, by conducting steady-state and transient background tests at key test locations in the substation, the electromagnetic environment of the substation under different operating conditions can be comprehensively evaluated. Considering the impact of ambient humidity on electromagnetic testing and adjusting the rotation rate of the electromagnetic probe accordingly, the interference of humidity on the test results can be reduced and the accuracy of the test data can be improved. By dynamically adjusting the test parameters (such as the horizontal rotation rate of the electromagnetic probe) to adapt to different environmental conditions, the flexibility and adaptability of the test method are enhanced. The electromagnetic environment simulation model trained with steady-state and transient background test data can be used to simulate and predict the electromagnetic environment of the substation under various conditions, providing a scientific basis for decision-making. The simulation model can help identify potential electromagnetic environment risks and provide support for safety management and risk prevention of the substation. According to the simulation results, the equipment layout and operation of the substation can be optimized to reduce electromagnetic interference and improve the overall performance of the system. By continuously using the simulation model for testing and analysis, long-term monitoring and trend analysis of the electromagnetic environment of the substation can be achieved, and potential problems can be discovered and solved in a timely manner.

[0089] In an exemplary embodiment, performing a steady-state background test at a test site to obtain steady-state background test data includes:

[0090] When the substation is operating normally, a non-frequency-selective broadband radiation meter is used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site, and multiple measurements and average processing are performed to obtain steady-state background test data.

[0091] Specifically, the purpose of the steady-state background test is to obtain the baseline data of the electromagnetic field level of the substation under normal operating conditions. These data will serve as a comparison benchmark for subsequent transient tests or abnormal state tests.

[0092] The test equipment selected is a non-frequency selective broadband radiation meter, which can measure electromagnetic fields over a wide frequency range, including power frequency (usually 50 or 60 Hz) and radio frequency (radio frequency).

[0093] Multiple measurements were performed at the test site to ensure data representativeness and reduce random errors. The results of multiple measurements were averaged to obtain a more stable and reliable steady-state background value.

[0094] Testing power frequency electromagnetic fields: refers to measuring low-frequency electromagnetic fields that are directly related to the operation of the power system.

[0095] Testing radio frequency electromagnetic fields: refers to measuring high-frequency electromagnetic fields that may be generated by radio communication equipment or other electronic equipment.

[0096] Select key areas within the substation for testing, such as inlets and outlets, equipment areas, and control rooms. The electromagnetic field levels in these areas are critical to assessing the electromagnetic environment of the substation. Record the time, location, equipment settings, and other information for each measurement to facilitate subsequent analysis and verification. Store the measured data for long-term tracking and trend analysis. Based on the steady-state background data, identify potential electromagnetic environment risks and develop corresponding management measures.

[0097] In this embodiment, by conducting a steady-state background test at the test site, detailed data on the electromagnetic field level of the substation under normal operating conditions can be obtained, which is conducive to accurately evaluating the electromagnetic environment. The test equipment selects a non-frequency-selective broadband radiation meter and an electromagnetic probe, which can, on the one hand, broaden the frequency range of the test, and on the other hand, can be combined with the electromagnetic probe to conduct a dynamic test on the test site, which can improve the comprehensiveness and flexibility of the test.

[0098] In an exemplary embodiment, as shown in FIG3 , adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity includes:

[0099] Step S302, determining the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity;

[0100] Step S304: adjusting the horizontal rotation rate of the electromagnetic probe according to the influence adjustment coefficient.

[0101] Specifically, the influence adjustment coefficient is a coefficient determined according to the change of environmental humidity, and is used to adjust the horizontal rotation rate of the electromagnetic probe. The influence adjustment coefficient of humidity on the electromagnetic probe is related to the linear fit between the actual humidity change rate of the probe and the horizontal rotation rate. The increased horizontal rotation rate of the electromagnetic probe is equal to the standard horizontal rotation rate × the influence adjustment coefficient of humidity on the electromagnetic probe.

[0102] The influence adjustment coefficient can be determined through experimental data, theoretical analysis or historical data to reflect the specific impact of humidity on the performance of the electromagnetic probe. According to the influence adjustment coefficient, the horizontal rotation rate of the electromagnetic probe is adjusted. If the humidity increases, the rotation rate may need to be increased to reduce the impact of humidity on the test results. This adjustment is dynamic, that is, as the ambient humidity changes in real time, the rotation rate of the probe will also be adjusted accordingly.

[0103] First, use a humidity sensor to monitor the humidity of the test environment in real time. Through the automatic control system, the rotation rate of the probe is automatically adjusted according to the humidity monitoring results and the preset influence adjustment coefficient. By adjusting the rotation rate, the negative impact of humidity on the electromagnetic test results can be reduced and the accuracy of the test data can be improved. In an environment with high humidity, increasing the rotation rate can speed up the test process and improve test efficiency. This method is especially important when performing electromagnetic testing outdoors or in an environment with large humidity changes. In situations where long-term monitoring of the electromagnetic environment is required, dynamically adjusting the probe rotation rate can ensure the continuity and reliability of the test data.

[0104] In this embodiment, this method can ensure that the electromagnetic probe can provide accurate and reliable test data under different environmental humidity conditions, thereby improving the overall quality and efficiency of electromagnetic environment testing.

[0105] In an exemplary embodiment, when the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test site is shortened; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

[0106] Specifically, the first preset humidity threshold is a lower humidity threshold. When the humidity exceeds this value, some measures may need to be taken, such as adjusting the rotation rate of the probe. The second preset humidity threshold is a higher humidity threshold (e.g., 60%). When the humidity exceeds this value, further measures need to be taken, such as shortening the test distance.

[0107] By shortening the distance between the substation and the test site, the distance that electromagnetic waves travel in the air can be reduced, thereby reducing attenuation. Reducing the distance helps improve the accuracy of the measurement because the strength of the electromagnetic field decays with increasing distance. The adjustment of the test distance is dynamic, and the decision on whether to shorten the distance is made based on the real-time humidity monitoring results. When adjusting the test distance, safety factors also need to be considered to ensure the safety of testers and equipment.

[0108] The specific operation is to use a humidity sensor to monitor the humidity of the test environment in real time. When the humidity exceeds the second preset humidity threshold, the test distance is shortened according to a predetermined strategy. An automatic control system can be developed to automatically adjust the test distance according to the humidity monitoring results. In some cases, the test distance can also be manually adjusted by the tester based on the humidity readings. By shortening the test distance, the quality of the electromagnetic environment test data obtained under high humidity conditions can be improved. This method improves the adaptability of the test method to environmental changes and ensures that reliable test results can be obtained under different humidity conditions. This method is particularly useful in particularly humid environments or climate conditions, such as tropical rainforest areas or high humidity seasons.

[0109] In this embodiment, by shortening the test distance between the substation and the test site under high humidity conditions, the adverse effect of humidity on electromagnetic testing can be effectively addressed, ensuring the accuracy and reliability of test data.

[0110] In an exemplary embodiment, determining the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity includes:

[0111] Determine the mathematical model between the ambient humidity and the horizontal rotation rate of the electromagnetic probe;

[0112] The influence adjustment coefficient of the electromagnetic probe is dynamically calculated according to the ambient humidity by using a mathematical model; wherein the mathematical model includes the influence factor of the ambient humidity on the electromagnetic wave propagation speed and the influence factor on the sensitivity of the electromagnetic probe.

[0113] Specifically, it is used to describe the relationship between ambient humidity and electromagnetic probe performance (including horizontal rotation rate). The mathematical model usually includes multiple parameters and equations, which can reflect the specific impact of humidity on electromagnetic wave propagation speed and probe sensitivity.

[0114] Humidity may affect the propagation speed of electromagnetic waves in the air, and the propagation speed factor is used to quantify this effect. Humidity may also affect the sensitivity of the probe, that is, the probe's ability to respond to changes in the electromagnetic field, and the sensitivity factor is used to quantify this effect.

[0115] The influence adjustment coefficient is dynamically calculated through a mathematical model using the real-time monitored ambient humidity data. The calculated adjustment coefficient is used to adjust the horizontal rotation rate of the electromagnetic probe to adapt to the current humidity conditions.

[0116] The model can help predict the performance changes of electromagnetic probes under different humidity conditions. Through the application of the model, test parameters can be optimized to improve the accuracy and efficiency of the test. Collect the performance data of the electromagnetic probe under different humidity conditions for the establishment and verification of the model. Develop an algorithm to implement the calculation of the mathematical model so that the adjustment coefficient can be automatically calculated. Verify the accuracy of the mathematical model with experimental data to ensure that the model can reliably predict the impact of humidity on the performance of the probe. Adjust the model based on the verification results to improve its prediction accuracy. In the actual test, the rotation rate of the probe is automatically adjusted according to the humidity to maintain the accuracy of the test.

[0117] In this embodiment, this method can ensure that the electromagnetic probe can maintain optimal performance under different humidity conditions, thereby improving the quality and reliability of electromagnetic environment testing.

[0118] In an exemplary embodiment, when the ambient humidity is greater than a second preset humidity threshold, shortening the test distance between the substation and the test location includes:

[0119] A distance sensor is used to monitor the test distance between the substation and the test site in real time. When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test site is shortened, and the pitch angle and power output of the electromagnetic probe are automatically adjusted according to humidity changes.

[0120] Specifically, a humidity sensor is used to monitor the ambient humidity in real time to ensure that humidity changes can be responded to in a timely manner. A second preset humidity threshold is set, and when the humidity exceeds this threshold, the corresponding adjustment measures are initiated. A distance sensor is used to monitor the distance between the substation and the test site in real time. When the humidity exceeds the second preset humidity threshold, the test distance is automatically or manually shortened to reduce the impact of humidity on the propagation of electromagnetic waves. According to the humidity change, the pitch angle of the electromagnetic probe is automatically adjusted to optimize the reception and transmission direction of the electromagnetic wave. By adjusting the pitch angle, the signal reception quality can be improved and the signal attenuation caused by humidity can be reduced. According to the changes in humidity and distance, the power output of the electromagnetic probe is automatically adjusted to ensure the strength and coverage of the signal. In a high humidity environment, the power output may need to be increased to compensate for the signal attenuation to maintain the accuracy of the test. An automated control system is developed to automatically adjust the test parameters based on the real-time monitored humidity and distance data. The system can feedback the adjustment results in real time to ensure that the test parameters are always in the best state. This method is particularly useful when performing electromagnetic testing outdoors or in an environment with large humidity changes. In situations where long-term monitoring of the electromagnetic environment is required, dynamic adjustment of the test parameters can ensure the continuity and reliability of the test data.

[0121] In this embodiment, these adjustment measures can improve the accuracy of electromagnetic testing in a high humidity environment. Automatic adjustment reduces manual intervention and improves test efficiency.

[0122] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0123] Based on the same inventive concept, the embodiment of the present application also provides a substation electromagnetic environment testing device for implementing the substation electromagnetic environment testing method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more substation electromagnetic environment testing device embodiments provided below can refer to the above limitations on the substation electromagnetic environment testing method, and will not be repeated here.

[0124] In an exemplary embodiment, as shown in FIG4 , a substation electromagnetic environment testing device is provided, comprising:

[0125] A location determination module 402 is used to determine a test location for the electromagnetic environment of a substation;

[0126] A testing module 404 is used to perform a steady-state background test at a test location to obtain steady-state background test data;

[0127] An acquisition module 406 is used to acquire the ambient humidity of the test site;

[0128] An adjustment module 408 is used to adjust the horizontal rotation rate of the electromagnetic probe according to the ambient humidity when the ambient humidity is greater than a first preset humidity threshold;

[0129] The test module 404 is further used to perform a transient background test at a test location according to the adjusted horizontal rotation rate of the electromagnetic probe to obtain transient background test data;

[0130] A model training module 410 is used to train an electromagnetic environment simulation model based on steady-state background test data and transient background test data;

[0131] The environment monitoring module 412 is used to obtain the electromagnetic environment test data of the substation using the electromagnetic environment simulation model.

[0132] In an exemplary embodiment, the test module 404 is also used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site using a non-frequency-selective broadband radiation meter when the substation is operating normally, and perform multiple measurements and averaging to obtain steady-state background test data.

[0133] In an exemplary embodiment, the adjustment module 408 is further configured to determine an influence adjustment coefficient of the electromagnetic probe according to the ambient humidity; and adjust the horizontal rotation rate of the electromagnetic probe according to the influence adjustment coefficient.

[0134] In an exemplary embodiment, the adjustment module 408 is further configured to shorten the test distance between the substation and the test location when the ambient humidity is greater than a second preset humidity threshold; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

[0135] In an exemplary embodiment, the adjustment module 408 is also used to determine a mathematical model between ambient humidity and the horizontal rotation rate of the electromagnetic probe; using the mathematical model, the influence adjustment coefficient of the electromagnetic probe is dynamically calculated according to the ambient humidity; wherein the mathematical model includes the influence factor of ambient humidity on the propagation speed of electromagnetic waves and the influence factor on the sensitivity of the electromagnetic probe.

[0136] In an exemplary embodiment, the adjustment module 408 is also used to use a distance sensor to monitor the test distance between the substation and the test site in real time, shorten the test distance between the substation and the test site when the ambient humidity is greater than a second preset humidity threshold, and automatically adjust the pitch angle and power output of the electromagnetic probe according to the humidity change.

[0137] Each module in the above-mentioned substation electromagnetic environment test device can be implemented in whole or in part by software, hardware and their combination. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0138] In an exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be shown in FIG5. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store steady-state background test data and transient background test data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a substation electromagnetic environment test method is implemented.

[0139] Those skilled in the art will understand that the structure shown in FIG. 5 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0140] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0141] Determine the test site for the substation electromagnetic environment;

[0142] Conduct a steady-state background test at a test site to obtain steady-state background test data;

[0143] Obtain the ambient humidity of the test site;

[0144] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0145] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test site to obtain transient background test data;

[0146] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0147] The electromagnetic environment simulation model is used to obtain the substation electromagnetic environment test data.

[0148] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0149] When the substation is operating normally, a non-frequency-selective broadband radiation meter is used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site, and multiple measurements and average processing are performed to obtain steady-state background test data.

[0150] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0151] Determine the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity;

[0152] According to the impact adjustment coefficient, adjust the horizontal rotation rate of the electromagnetic probe.

[0153] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0154] When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

[0155] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0156] Determine the mathematical model between the ambient humidity and the horizontal rotation rate of the electromagnetic probe;

[0157] The influence adjustment coefficient of the electromagnetic probe is dynamically calculated according to the ambient humidity by using a mathematical model; wherein the mathematical model includes the influence factor of the ambient humidity on the electromagnetic wave propagation speed and the influence factor on the sensitivity of the electromagnetic probe.

[0158] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0159] A distance sensor is used to monitor the test distance between the substation and the test site in real time. When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test site is shortened, and the pitch angle and power output of the electromagnetic probe are automatically adjusted according to humidity changes.

[0160] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0161] Determine the test site for the substation electromagnetic environment;

[0162] Conduct a steady-state background test at a test site to obtain steady-state background test data;

[0163] Obtain the ambient humidity of the test site;

[0164] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0165] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test site to obtain transient background test data;

[0166] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0167] The electromagnetic environment simulation model is used to obtain the substation electromagnetic environment test data.

[0168] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0169] When the substation is operating normally, a non-frequency-selective broadband radiation meter is used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site, and multiple measurements and average processing are performed to obtain steady-state background test data.

[0170] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0171] Determine the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity;

[0172] According to the impact adjustment coefficient, adjust the horizontal rotation rate of the electromagnetic probe.

[0173] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0174] When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

[0175] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0176] Determine the mathematical model between the ambient humidity and the horizontal rotation rate of the electromagnetic probe;

[0177] The influence adjustment coefficient of the electromagnetic probe is dynamically calculated according to the ambient humidity by using a mathematical model; wherein the mathematical model includes the influence factor of the ambient humidity on the electromagnetic wave propagation speed and the influence factor on the sensitivity of the electromagnetic probe.

[0178] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0179] A distance sensor is used to monitor the test distance between the substation and the test site in real time. When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test site is shortened, and the pitch angle and power output of the electromagnetic probe are automatically adjusted according to humidity changes.

[0180] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0181] Determine the test site for the substation electromagnetic environment;

[0182] Conduct a steady-state background test at a test site to obtain steady-state background test data;

[0183] Obtain the ambient humidity of the test site;

[0184] When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity;

[0185] According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test site to obtain transient background test data;

[0186] According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained;

[0187] The electromagnetic environment simulation model is used to obtain the substation electromagnetic environment test data.

[0188] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0189] When the substation is operating normally, a non-frequency-selective broadband radiation meter is used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site, and multiple measurements and average processing are performed to obtain steady-state background test data.

[0190] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0191] Determine the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity;

[0192] According to the impact adjustment coefficient, adjust the horizontal rotation rate of the electromagnetic probe.

[0193] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0194] When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

[0195] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0196] Determine the mathematical model between the ambient humidity and the horizontal rotation rate of the electromagnetic probe;

[0197] The influence adjustment coefficient of the electromagnetic probe is dynamically calculated according to the ambient humidity by using a mathematical model; wherein the mathematical model includes the influence factor of the ambient humidity on the electromagnetic wave propagation speed and the influence factor on the sensitivity of the electromagnetic probe.

[0198] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0199] A distance sensor is used to monitor the test distance between the substation and the test site in real time. When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test site is shortened, and the pitch angle and power output of the electromagnetic probe are automatically adjusted according to humidity changes.

[0200] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0201] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0202] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0203] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for testing the electromagnetic environment of a substation, characterized in that: The method comprises: Determine the test site for the substation electromagnetic environment; Perform a steady-state background test at the test site to obtain steady-state background test data; Obtaining the ambient humidity of the test location; When the ambient humidity is greater than a first preset humidity threshold, adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity; According to the adjusted horizontal rotation rate of the electromagnetic probe, a transient background test is performed at the test location to obtain transient background test data; According to the steady-state background test data and the transient background test data, an electromagnetic environment simulation model is trained; The electromagnetic environment simulation model is used to obtain the electromagnetic environment test data of the substation.

2. The method according to claim 1, characterized in that: The step of performing a steady-state background test at the test location to obtain steady-state background test data includes: When the substation is operating normally, a non-frequency-selective broadband radiation measuring instrument is used to measure the electromagnetic field background values ​​of the power frequency and radio frequency at the test site, and multiple measurements and average processing are performed to obtain steady-state background test data.

3. The method according to claim 1, characterized in that: The step of adjusting the horizontal rotation rate of the electromagnetic probe according to the ambient humidity comprises: Determining the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity; The horizontal rotation rate of the electromagnetic probe is adjusted according to the influence adjustment coefficient.

4. The method according to claim 1, characterized in that The method further comprises: When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened; wherein the second preset humidity threshold is greater than the first preset humidity threshold.

5. The method according to claim 3, characterized in that: Determining the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity includes: Determine a mathematical model between the ambient humidity and the horizontal rotation rate of the electromagnetic probe; The mathematical model is used to dynamically calculate the influence adjustment coefficient of the electromagnetic probe according to the ambient humidity; wherein the mathematical model includes the influence factor of the ambient humidity on the electromagnetic wave propagation speed and the influence factor on the sensitivity of the electromagnetic probe.

6. The method according to claim 4, characterized in that When the ambient humidity is greater than a second preset humidity threshold, shortening the test distance between the substation and the test location includes: A distance sensor is used to monitor the test distance between the substation and the test location in real time. When the ambient humidity is greater than a second preset humidity threshold, the test distance between the substation and the test location is shortened, and the pitch angle and power output of the electromagnetic probe are automatically adjusted according to humidity changes.

7. A substation electromagnetic environment testing device, characterized in that: The device comprises: A location determination module is used to determine the test location of the substation electromagnetic environment; A testing module, used for performing a steady-state background test at the test site to obtain steady-state background test data; An acquisition module, used for acquiring the ambient humidity of the test location; An adjustment module, configured to adjust the horizontal rotation rate of the electromagnetic probe according to the ambient humidity when the ambient humidity is greater than a first preset humidity threshold; The test module is further used to perform a transient background test at the test location according to the adjusted horizontal rotation rate of the electromagnetic probe to obtain transient background test data; A model training module, used for training an electromagnetic environment simulation model according to the steady-state background test data and the transient background test data; The environment monitoring module is used to obtain the electromagnetic environment test data of the substation using the electromagnetic environment simulation model.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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