Evaluation of Aging State of Composite Insulators Based on Terahertz Method

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI:10.1109/CIEEC58067.2023.10165889

Chen Zhenyu, Chen Zhuo, Tong Xiangwei, Kuang Jianghua, Ren Xiang, Kang Longyu

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Abstract

Composite insulator is an important insulating equipment of power system, which is prone to internal faults that are not easy to detect during operation, and the detection and diagnosis of faults becomes an important issue. Terahertz method is an emerging method to detect internal faults of insulators, which has the advantages of strong penetration ability, high safety and accurate measurement, and can effectively extract the information of the measured samples and precisely determine the fault location of insulators. In this paper, firstly, samples of six composite insulators with different operating ages in a region of North China were made, and afterwards, in order to investigate the influence of aging degrees of composite insulators on the terahertz wave transmission parameters, the terahertz vector network analyzer was used to conduct experimental tests on the calibrated groups of samples\, and a model of aging detection of composite insulators based on the terahertz signal transmission characteristics was established.

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基于太赫兹法的复合绝缘子老化状态评价

复合绝缘子是电力系统重要的绝缘设备，在运行过程中容易发生内部故障，不易被发现，故障的检测与诊断成为一个重要问题。太赫兹法是一种新兴的绝缘子内部故障检测方法，具有穿透能力强、安全性高、测量准确等优点，能够有效提取被测样品的信息，精确确定绝缘子的故障位置。本文首先在华北某地区制作了6个不同工作年龄的复合绝缘子样品，随后，为了研究复合绝缘子老化程度对太赫兹波传输参数的影响，利用太赫兹矢量网络分析仪对校准后的样品组进行了实验测试。建立了基于太赫兹信号传输特性的复合绝缘子老化检测模型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 IEEE 6th International Electrical and Energy Conference (CIEEC)

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