基于 Chan-WLS 算法的超声波定位方法,用于利用光纤 F-P 传感阵列检测电力变压器局部放电故障

IF 4.4 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
High Voltage Pub Date : 2024-07-19 DOI:10.1049/hve2.12472
Hong Liu, Tianhe Yang, Zhixian Zhang, Haoyuan Tian, Yuxuan Song, Qiuxia Sun, Wei Wang, Yunjun Geng, Weigen Chen
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引用次数: 0

摘要

光纤 F-P 传感器具有绝缘性好、灵敏度高、抗电磁干扰、结构简单、价格低廉等优点,已成为局部放电故障的主流检测方法之一。根据板壳振动理论给出了 F-P 传感器声敏膜片的一阶谐振频率,并根据法布里-珀罗干涉原理设计了光纤 F-P 传感阵列。此外,还提出了一种传感器安装方法,即在电力变压器换油阀处使用光纤穿透器通过法兰将光纤 F-P 探头引入电力变压器内部。利用部分放电超声信号传播到 F-P 传感阵列的到达时间差 (TDOA) 建立了非线性方程组。利用 Chan-WLS 算法将 TDOA 定位方法中的非线性方程转换为非线性优化问题,并在 220 kV 实际电力变压器上进行求解和实验验证。实验结果表明,基于 Chan-WLS 算法求解的局部放电故障定位误差为 20.27 cm,在可接受误差范围内。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultrasonic localization method based on Chan‐WLS algorithm for detecting power transformer partial discharge faults by fibre optic F‐P sensing array
Fibre optic F‐P sensor has become one of the mainstream detection methods for partial discharge faults due to their advantages of good insulation, high sensitivity, resistance to electromagnetic interference, simple structure and inexpensive pricing. The first‐order resonant frequency of the acoustically sensitive diaphragm of the F‐P sensor is given based on the theory of plate and shell vibration, and the fibre optic F‐P sensing array is designed based on the Fabry–Perot interference principle. A sensor installation method is also proposed for introducing a fibre optic F‐P probe into the power transformer interior using a fibre optic penetrator through flange at the power transformer oil change valve. A system of non‐linear equations is developed by utilising the time difference of arrival (TDOA) of the partial discharge ultrasound signal propagation to the F‐P sensing array. The Chan‐WLS algorithm is used to convert the non‐linear equations in the TDOA localisation method into a non‐linear optimisation problem to be solved and experimentally verified on the 220 kV real power transformer. The experimental results show that the error in the partial discharge fault localisation is solved based on the Chan‐WLS algorithm and the actual location is 20.27 cm, which is within the acceptable error.
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来源期刊
High Voltage
High Voltage Energy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍: High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include: Electrical Insulation ● Outdoor, indoor, solid, liquid and gas insulation ● Transient voltages and overvoltage protection ● Nano-dielectrics and new insulation materials ● Condition monitoring and maintenance Discharge and plasmas, pulsed power ● Electrical discharge, plasma generation and applications ● Interactions of plasma with surfaces ● Pulsed power science and technology High-field effects ● Computation, measurements of Intensive Electromagnetic Field ● Electromagnetic compatibility ● Biomedical effects ● Environmental effects and protection High Voltage Engineering ● Design problems, testing and measuring techniques ● Equipment development and asset management ● Smart Grid, live line working ● AC/DC power electronics ● UHV power transmission Special Issues. Call for papers: Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf
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