Ultra-high frequency and ultra-fast transient overvoltage measurement design system

Abstract

The invention discloses an ultra-high frequency and ultra-fast transient overvoltage measurement design system, and designs a system comprising a system planning module, a design module, an integrated test module and a data analysis application module for solving the problem that high frequency and ultra-fast transient overvoltage VFTO in a power system is difficult to accurately measure. The system planning module outputs VFTO performance data, the design module designs a VFTO sensor and a signal processing and data acquisition system according to the VFTO performance data, the integration test module integrates design content to a measurement system and performs test adjustment, and finally the data analysis application module applies a result to a power system. The system combines an ultrahigh frequency sensor and an optimized signal processing algorithm, can efficiently measure VFTO events up to hundreds of MHz, remarkably improves the measurement sensitivity and accuracy, supports real-time data monitoring and early warning, provides a solid guarantee for safe and stable operation of an electric power system, is easy to expand and upgrade, adapts to the requirements of electric power systems of different scales, and has wide application prospects. The device is an indispensable measuring tool for power engineers.

Description

Technical Field

[0001] The present invention relates to the technical field of overvoltage measurement in power systems, and in particular to a ultra-high frequency ultra-fast transient overvoltage measurement design system. Background Art

[0002] In the daily operation of power systems, transient events such as switch operation, circuit breaker opening, and ground faults can easily cause very fast transient overvoltage (VFTO). These VFTO events are known for their extremely high frequency range, which can reach hundreds of MHz, posing a severe challenge to the safe operation of power systems. Due to the instantaneous, high-frequency and unpredictable characteristics of VFTO events, extremely high requirements are placed on the insulation performance, equipment safety and system stability of power systems.

[0003] Although the existing overvoltage measurement system can monitor the voltage fluctuation of the power system to a certain extent, it is often unable to cope with transient overvoltages with significant high-frequency characteristics such as VFTO. Specifically, the traditional measurement system has obvious deficiencies in the response speed, measurement accuracy and data processing capabilities of high-frequency signals, making it difficult to accurately capture and analyze the complete waveform characteristics of VFTO events, and thus unable to provide a reliable basis for fault prevention and protection strategy formulation of the power system.

[0004] In addition, with the rapid development of power systems towards high voltage, large capacity and intelligence, the widespread application of new power equipment such as GIS (Gas Insulated Substation) and GIL (Gas Insulated Lines) has also increased the requirements for VFTO measurement technology. These devices have complex internal structures and high insulation requirements. Once a VFTO event occurs, it may cause irreversible damage to the equipment and even cause a large-scale power outage. Therefore, it is particularly important to develop a measurement system that can accurately measure high-frequency VFTO events and has high sensitivity, high accuracy and strong data processing capabilities.

[0005] In summary, the existing overvoltage measurement system has obvious defects in dealing with the high-frequency characteristics of VFTO and cannot meet the growing safety monitoring and fault prevention needs of the power system. Therefore, it is necessary to design a new VFTO measurement design system to achieve efficient and accurate measurement of VFTO events and provide strong guarantee for the safe and stable operation of the power system. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a ultra-high frequency ultra-fast transient overvoltage measurement design system to solve the problems of insufficient measurement accuracy and limited high-frequency response capability in the prior art.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is: a UHF UHF transient overvoltage measurement design system, comprising a system planning module, a design module, an integrated test module and a data analysis and application module connected in sequence, the system planning module is used to output VFTO performance data and transmit it to the design module, the design module receives the VFTO performance data, and outputs the VFTO sensor measurement design content to the integrated test module, the integrated test module receives the VFTO sensor measurement design content, integrates it into the measurement system and outputs the test adjustment result, the data analysis and application module receives the test adjustment result and applies it to the power system.

[0008] In a preferred solution, the system planning module acquires and analyzes the data generated by VFTO, and outputs the performance indicator data to the design module.

[0009] In a preferred solution, the performance indicator data includes frequency range, sensitivity, dynamic range, bandwidth, and signal-to-noise ratio.

[0010] In a preferred solution, the design module includes a sensor design unit and a signal processing and data acquisition system design unit.

[0011] In a preferred solution, the sensor design unit designs and outputs the VFTO measurement sensor design content to the signal processing and data acquisition system design unit.

[0012] In a preferred solution, the signal processing and data acquisition system design unit receives the VFTO measurement sensor design content, and outputs the VFTO acquisition signal design content to the integrated test module.

[0013] In a preferred solution, the sensor designed by the sensor design unit has high frequency bandwidth, high sensitivity and good electromagnetic compatibility to meet the measurement requirements of VFTO events up to hundreds of MHz.

[0014] In a preferred solution, the measurement system provided by the integrated test module includes a VFTO sensor, a signal processing circuit, and a data acquisition and processing module.

[0015] In a preferred solution, the integrated test module outputs the test parameters of the measurement system to the data analysis application module during the integrated test phase to facilitate test verification and result adjustment.

[0016] In a preferred solution, the data analysis application module receives and analyzes VFTO test data, studies its generation mechanism and propagation characteristics, and applies the analysis results to the design, operation and maintenance, and fault diagnosis of GIS or GIL to improve the safety and reliability of the power system.

[0017] In a preferred solution, the system uses a 300-500 MHz ultra-high frequency sensor combined with an optimized signal processing algorithm to improve the sensitivity of the measurement system and the accuracy of the measurement results, meeting the measurement requirements for the high-frequency characteristics of VFTO.

[0018] The ultra-high frequency ultra-fast transient overvoltage measurement design system and simulation method provided by the present invention have the following beneficial effects: 1. The present invention solves the problems of insufficient measurement accuracy and limited high-frequency response capability in the prior art. Specifically, it solves the problem that the existing overvoltage measurement system cannot meet the measurement requirements of the high-frequency characteristics of VFTO, resulting in the inability to accurately capture and analyze VFTO events, and the problem that the existing measurement data is insufficient in sensitivity and accuracy, affecting the prevention and protection measures for power system failures. 2. The system of the present invention can respond to and measure VFTO events up to hundreds of MHz, significantly improving the measurement system's ability to measure high-frequency signals.

[0019] 3. The present invention improves the sensitivity of the measurement system and the accuracy of the measurement results by combining a UHF sensor with an optimized signal processing algorithm; 4. The present invention integrates multiple modules such as sensor design, signal processing, data acquisition and analysis to form a complete VFTO measurement design system; 5. The measurement results of the present invention are directly applied to the GIS or GIL of the power system, thereby improving the safety and reliability of the power system; 6. The present invention significantly improves the sensitivity of the measurement system and the accuracy of the measurement results by optimizing the sensor design and signal processing algorithm; 7. The system of the present invention can respond to and measure VFTO events up to hundreds of MHz, meeting the needs of high-frequency measurement; 8. The present invention can timely detect and prevent potential power system failures by accurately monitoring and analyzing VFTO, significantly improving the safety and reliability of the power system; 9. The measurement results of the present invention are directly applied to the GIS or GIL of the power system, providing strong support for the design, operation and maintenance, and fault diagnosis of the power system, and have high practical application value; 10. The present invention supports real-time data monitoring and early warning, provides solid guarantee for the safe and stable operation of the power system, and is of great significance for the prevention of power system failures and safe operation. The system is easy to expand and upgrade, adapts to the needs of power systems of different sizes, and is an indispensable measurement tool for power engineers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples: Figure 1 It is a schematic diagram of the system structure of the present invention; In the figure: system planning module 1, design module 2, integration testing module 3, data analysis application module 4. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments: Example 1 like Figure 1 As shown, a UHF UFS transient overvoltage measurement design system includes a system planning module 1, a design module 2, an integrated test module 3 and a data analysis and application module 4 which are connected in sequence. The system planning module 1 is used to output VFTO performance data and transmit it to the design module 2. The design module 2 receives the VFTO performance data and outputs the VFTO sensor measurement design content to the integrated test module 3. The integrated test module 3 receives the VFTO sensor measurement design content, integrates it into the measurement system and outputs the test adjustment result. The data analysis and application module 4 receives the test adjustment result and applies it to the power system.

[0022] In this embodiment, the system planning module 1 acquires and analyzes the VFTO generated data, and outputs the performance indicator data to the design module 2 .

[0023] Furthermore, the performance indicator data includes frequency range, sensitivity, dynamic range, bandwidth, and signal-to-noise ratio.

[0024] Furthermore, the design module 2 includes a sensor design unit and a signal processing and data acquisition system design unit.

[0025] Furthermore, the sensor design unit designs and outputs the VFTO measurement sensor design content to the signal processing and data acquisition system design unit.

[0026] Furthermore, the signal processing and data acquisition system design unit receives the VFTO measurement sensor design content, and outputs the VFTO acquisition signal design content to the integrated test module 3 .

[0027] Furthermore, the sensor designed by the sensor design unit has high frequency bandwidth, high sensitivity and good electromagnetic compatibility to meet the measurement requirements of VFTO events up to hundreds of MHz.

[0028] Furthermore, the measurement system of the integrated test module 3 includes a VFTO sensor, a signal processing circuit, and a data acquisition and processing module.

[0029] Furthermore, the integrated test module 3 outputs the test parameters of the measurement system to the data analysis application module 4 during the integrated test phase to facilitate test verification and result adjustment.

[0030] Furthermore, the data analysis application module 4 receives and analyzes VFTO test data, studies its generation mechanism and propagation characteristics, and applies the analysis results to the design, operation and maintenance, and fault diagnosis of GIS or GIL to improve the safety and reliability of the power system.

[0031] Furthermore, the system uses a 300-500 MHz ultra-high frequency sensor combined with an optimized signal processing algorithm to improve the sensitivity of the measurement system and the accuracy of the measurement results, meeting the measurement requirements for the high-frequency characteristics of VFTO.

[0032] Example 2 In another preferred embodiment, based on the above embodiment 1, Figure 1 As shown, this embodiment describes a UHF UFS transient overvoltage measurement design system in detail according to the various modules of the system and their interactions.

[0033] 1. Implementation of System Planning Module 1 System planning module 1 is the starting point of the VFTO measurement design system, and is mainly responsible for acquiring and parsing the data generated by VFTO. Specifically, this module receives real-time data or simulation experiment data from the power system to conduct in-depth analysis of the frequency range, amplitude and other characteristics of VFTO events. Based on the analysis results, system planning module 1 outputs performance indicator data including frequency range, sensitivity, dynamic range, bandwidth, signal-to-noise ratio, etc., and transmits these data to design module 2.

[0034] During the implementation process, the system planning module 1 adopted advanced data analysis algorithms, which can accurately extract the key parameters of VFTO events and provide reliable data support for subsequent design work.

[0035] 2. Implementation of Design Module 2 After receiving the performance index data from the system planning module 1, the design module 2 starts the specific work of VFTO sensor measurement design; this module is divided into two parts: the sensor design unit and the signal processing and data acquisition system design unit.

[0036] (1) Sensor design unit Based on the performance indicator data, the sensor design unit designed a VFTO measurement sensor with high frequency bandwidth, high sensitivity and good electromagnetic compatibility. During the design process, the sensor's size, shape, material and installation location were considered to ensure that the sensor can accurately capture the VFTO signal and reduce the impact on the normal operation of the power system.

[0037] After completing the design, the sensor design unit will output the detailed VFTO measurement sensor design content to the signal processing and data acquisition system design unit.

[0038] (2) Signal processing and data acquisition system design unit After receiving the sensor design content, the signal processing and data acquisition system design unit further designs front-end amplification and filtering circuits suitable for high-frequency signals; these circuits are intended to improve the dynamic range and signal-to-noise ratio of the VFTO measurement system and ensure signal accuracy; at the same time, the unit also uses high-speed data acquisition cards and digital technology to support rapid signal acquisition and accurate processing.

[0039] In addition, in order to further improve the accuracy and reliability of the measurement data, the signal processing and data acquisition system design unit also developed data processing algorithms, including denoising, signal recognition, feature extraction and other steps; these algorithms can reduce the impact of interference signals to a certain extent and extract the key features of the VFTO signal.

[0040] After completing the design, the signal processing and data acquisition system design unit will output the VFTO acquisition signal design content to the integrated test module 3.

[0041] 3. Implementation of integration test module 3 After receiving the VFTO acquisition signal design content, the integrated test module 3 integrates it into a complete measurement system; the measurement system includes components such as a VFTO sensor, a signal processing circuit, and a data acquisition and processing module.

[0042] In a laboratory environment, the integrated test module 3 first performs a preliminary test on the measurement system to verify the feasibility of its design and whether the performance indicators meet the requirements; during the test, the output data of the measurement system will be recorded and analyzed to evaluate its response characteristics at different frequencies and amplitudes.

[0043] After completing the preliminary tests, the integrated test module 3 will also conduct field tests in the actual GIS or GIL environment. These tests are designed to further verify the performance of the measurement system in a complex power system and adjust the system parameters based on the test results to optimize its performance.

[0044] After the test is completed, the integrated test module 3 will output the test parameters of the measurement system to the data analysis and application module 4 for subsequent data processing and application.

[0045] 4. Implementation of Data Analysis Application Module 4 After receiving the test data from the integrated test module 3, the data analysis application module 4 first conducts in-depth research and analysis on it; by analyzing the generation mechanism and propagation characteristics of the VFTO signal, the potential problems and risks in the power system can be further understood.

[0046] Subsequently, the data analysis application module 4 applies the processed results to the design, operation and maintenance, and fault diagnosis of GIS or GIL; specifically, these results can help engineers better evaluate the safety and reliability of the power system and guide the improvement and optimization of the system; at the same time, by timely discovering and preventing potential power system failures, the overall operating efficiency and stability of the system can also be improved.

[0047] Through the application of this system, effective monitoring and analysis of VFTO events can be achieved, providing strong guarantees for the safe operation of the power system.

[0048] In the preferred solution, the system planning module 1 obtains and analyzes the data generated by VFTO, and outputs the performance index data to the design module 2; with the above settings, the design module 2 performs refined design according to the performance index data, including equipment selection, layout optimization and parameter configuration, to ensure that the system can effectively suppress the potential harm of VFTO (very fast transient overvoltage) to power grid equipment, and feeds back the design results to the system planning module 1 for verification and adjustment.

[0049] In the preferred solution, the performance indicator data includes frequency range, sensitivity, dynamic range, bandwidth, and signal-to-noise ratio; the above settings can comprehensively evaluate the signal reception and processing capabilities of the device. In actual applications, these parameters are adjusted according to specific needs to ensure that the device maintains an efficient and stable working state in a complex environment.

[0050] In the preferred solution, the design module 2 includes a sensor design unit and a signal processing and data acquisition system design unit; the above settings ensure the accurate acquisition and processing of data. The sensor design unit is responsible for capturing high-precision environmental parameters, while the signal processing and data acquisition system design unit is responsible for converting the original signal into analyzable data, providing a solid data foundation for subsequent decision-making.

[0051] In the preferred solution, the sensor design unit designs and outputs the VFTO measurement sensor design content to the signal processing and data acquisition system design unit; the above settings ensure the accurate capture and conversion of the VFTO signal, providing a high-quality data basis for subsequent analysis. The signal processing and data acquisition system design unit then carefully interprets and optimizes the received design content to ensure the efficiency and stability of the overall system performance.

[0052] In the preferred solution, the signal processing and data acquisition system design unit receives the VFTO measurement sensor design content and outputs the VFTO acquisition signal design content to the integrated test module 3; the above settings ensure the accurate transmission and efficient processing of the VFTO signal from the sensor to the test module, and the integrated test module 3 then verifies and calibrates the VFTO acquisition signal, laying a solid foundation for subsequent data analysis and fault warning.

[0053] In the preferred solution, the sensor designed by the sensor design unit has high-frequency bandwidth, high sensitivity and good electromagnetic compatibility to meet the measurement requirements of VFTO events up to hundreds of MHz; the above settings ensure that the sensor can still work stably in a complex electromagnetic environment, accurately capture and transmit key data of VFTO events, and provide solid technical support for the stable operation of the power system.

[0054] In the preferred solution, the measurement system of the integrated test module 3 includes a VFTO sensor, a signal processing circuit, and a data acquisition and processing module; the above settings ensure the accuracy and real-time performance of the test process; the VFTO sensor captures fast transient overvoltage signals, the signal processing circuit amplifies and filters weak signals, and the data acquisition and processing module efficiently records and analyzes data, providing a solid guarantee for the stable operation of the power system.

[0055] In the preferred solution, the integrated test module 3 outputs the test parameters of the measurement system to the data analysis application module 4 during the integrated test phase to facilitate test verification and result adjustment. The above settings ensure the continuity of the test process and the real-time nature of data processing. At the same time, the ability to quickly identify abnormal data is enhanced, making it easier for the team to optimize the test strategy in a timely manner and improve overall product quality. The test accuracy and efficiency are effectively improved, ensuring the VFTO (very fast transient overvoltage) monitoring capability in a complex electromagnetic environment. At the same time, the data analysis application module 4 analyzes the test parameters through intelligent algorithms to provide data support for system optimization.

[0056] In the preferred solution, the data analysis application module 4 receives and analyzes VFTO test data, studies its generation mechanism and propagation characteristics, and applies the analysis results to the design, operation and maintenance, and fault diagnosis of GIS or GIL to improve the safety and reliability of the power system; the above settings not only enhance the adaptability of the power grid to complex electromagnetic environments, but also realize equipment performance prediction and optimization through data-driven methods, reduce unplanned downtime, and ensure stable operation of the power grid.

[0057] In the preferred solution, the system uses a 300~500MHz ultra-high frequency sensor combined with an optimized signal processing algorithm to improve the sensitivity of the measurement system and the accuracy of the measurement results, and meet the measurement requirements of the high-frequency characteristics of VFTO; the above settings ensure that the slight changes of VFTO (fast transient overvoltage) can still be stably captured in a complex electromagnetic environment, effectively reducing noise interference and improving the operation safety and reliability of the power system.

[0058] In summary, the present invention provides a UHF UFT transient overvoltage measurement design system, which solves the problems of insufficient measurement accuracy and limited high-frequency response capability in the prior art; the VFTO measurement design system adopts a modular design, including a system planning module 1, a design module 2, an integrated test module 3 and a data analysis application module 4. This design allows each part of the system to be independently developed and optimized, thereby improving the flexibility and scalability of the system; the system can effectively respond to and measure VFTO events up to hundreds of MHz, which is difficult to achieve with traditional overvoltage measurement systems, and meets the needs of high-frequency measurement; by combining UHF sensors with optimized signal processing algorithms, the system significantly improves the sensitivity of the measurement system and the accuracy of the measurement results, which is a major innovation in traditional measurement technology; the system integrates the functions of multiple modules, not only integrating multiple modules such as sensors, signal processing, data acquisition and analysis, but also through close collaboration between modules, a closed-loop process from data acquisition to analysis application is realized, and this integration method is unique in the field of VFTO measurement; the system is customized The sensor design unit and the signal processing and data acquisition system design unit in the design module can customize the design of measurement sensors and signal processing circuits according to the VFTO performance data. This customized design enables the system to capture and analyze VFTO events more accurately. The experiment of the present invention is combined with field testing. After the integrated test module is initially tested in a laboratory environment, it is also tested in the actual GIS or GIL environment, and the system parameters are adjusted according to the test results. This test method ensures the reliability and stability of the system in practical applications. The system is equipped with a user-friendly interface. Operators can monitor the measurement data in real time through an intuitive graphical interface and make necessary configuration adjustments, which enhances the ease of use and maintainability of the system. In addition, the system has powerful data storage and retrieval functions, supports retrospective analysis of historical data, and provides strong support for the safe and stable operation of the power grid. The system also has remote monitoring and diagnosis capabilities. Through network connection, operation and maintenance personnel can remotely access the system to achieve remote monitoring, fault diagnosis and software upgrades, which greatly improves the operation and maintenance efficiency and the convenience of system maintenance.

Claims

1. A UHF UFS transient overvoltage measurement design system, characterized by: The system comprises a system planning module (1), a design module (2), an integrated test module (3) and a data analysis and application module (4) which are connected in sequence. The system planning module (1) is used to output VFTO performance data and transmit it to the design module (2). The design module (2) receives the VFTO performance data and outputs VFTO sensor measurement design content to the integrated test module (3). The integrated test module (3) receives the VFTO sensor measurement design content, integrates it into the measurement system and outputs the test adjustment result. The data analysis and application module (4) receives the test adjustment result and applies it to the power system.

2. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 1, characterized in that: The system planning module (1) acquires and analyzes the data generated by the VFTO, and outputs the performance index data to the design module (2).

3. A UHF UFS transient overvoltage measurement design system according to claim 2, characterized in that: The performance indicator data include frequency range, sensitivity, dynamic range, bandwidth, and signal-to-noise ratio.

4. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 2, characterized in that: The design module (2) comprises a sensor design unit and a signal processing and data acquisition system design unit.

5. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 4, characterized in that: The sensor design unit designs and outputs the VFTO measurement sensor design content to the signal processing and data acquisition system design unit.

6. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 5, characterized in that: The signal processing and data acquisition system design unit receives the VFTO measurement sensor design content, and outputs the VFTO acquisition signal design content to the integrated test module (3).

7. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 6, characterized in that: The measurement system provided in the integrated test module (3) comprises a VFTO sensor, a signal processing circuit, and a data acquisition and processing module.

8. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 6, characterized in that: The integrated test module (3) outputs the test parameters of the measurement system to the data analysis application module (4) during the integrated test phase, so as to facilitate test verification and result adjustment.

9. The ultra-high frequency ultra-fast transient overvoltage measurement design system according to claim 8, characterized in that: The data analysis application module (4) receives and analyzes VFTO test data, studies its generation mechanism and propagation characteristics, and applies the analysis results to the design, operation and maintenance, and fault diagnosis of GIS or GIL to improve the safety and reliability of the power system.

10. A UHF UFS transient overvoltage measurement design system according to any one of claims 1 to 9, characterized in that: The system uses a 300-500 MHz ultra-high frequency sensor combined with an optimized signal processing algorithm to improve the sensitivity of the measurement system and the accuracy of the measurement results, meeting the measurement requirements for the high-frequency characteristics of VFTO.

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