电缆中间接头局部放电电磁波传播特性分析及传感器优化设计

doi:10.3969/j.issn.1008-0198.2024.05.013

湖南电力 ›› 2024, Vol. 44 ›› Issue (5): 81-86.doi: 10.3969/j.issn.1008-0198.2024.05.013

电缆中间接头局部放电电磁波传播特性分析及传感器优化设计

周雪欢¹, 曾萍¹, 刘志刚¹, 陈乾¹, 程桉¹, 张泽权², 蔡新景²

1.国网吉安供电公司,江西吉安 343009;
2.沈阳工业大学电气工程学院,辽宁沈阳 110870

收稿日期:2024-07-08 修回日期:2024-08-29 出版日期:2024-10-25 发布日期:2024-11-06
通信作者: 蔡新景（1980）,男,教授,博士生导师,主要从事等离子体输运、电力设备状态检测、有源配电网方面的研究工作。
作者简介:周雪欢(1990),女,高级工程师,从事电力设备运维技术研究工作。
基金资助:
国网江西省电力有限公司科技项目（5218L0230008）

Electromagnetic Wave Propagation Characteristics Analysis in Partial Discharge of Cable Joint and Sensor Optimation Design of Sensor

ZHOU Xuehuan¹, ZENG Ping¹, LIU Zhigang¹, CHEN Qian¹, CHENG An¹, ZHANG Zequan², CAI Xinjing²

1. State Grid Ji’an Power Supply Company, Ji’an 343009, China;
2. Department of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China

Received:2024-07-08 Revised:2024-08-29 Online:2024-10-25 Published:2024-11-06

摘要/Abstract

摘要： 高频电流法检测电缆中间接头局部放电故障,检测灵敏度较低,往往不能有效监测局部放电信号。电容耦合法灵敏度较高,具有监测中间接头局部放电的潜在应用可能性。采用有限元方法对电缆中间接头局部放电电磁波传播特性进行了仿真,得到不同监测点三个方向电场强度变化规律,分析局部放电电磁波衰减特性和频谱特性,并对电容传感器进行优化设计,为电容传感器在电缆中间接头局部放电监测应用提供理论参考。

关键词: 电缆中间接头, 电磁波, 有限元, 电容传感器, 频谱特性, 优化设计

Abstract: In response to the low detection sensitivity of high-frequency current method for detecting partial discharge faults in cable intermediate joints, based on the high sensitivity of capacitive coupling method, finite element method is used to simulate the electromagnetic wave propagation characteristics of partial discharge in cable intermediate joints. The variation law of electric field intensity in three directions at dif‍ferent monitoring points is obtained. At the same time, the attenuation characteristics and spectral characteristics of partial discharge electromagnetic waves are analyzed, and the capacitance sensor is optimized for design, providing reference for the application of capacitance sensors in monitoring partial discharge in cable intermediate joints.

Key words: cable joint, electromagnetic wave, finite element, capacitive sensor, spectral characteristic, optimal design

中图分类号:

TM247

周雪欢, 曾萍, 刘志刚, 陈乾, 程桉, 张泽权, 蔡新景. 电缆中间接头局部放电电磁波传播特性分析及传感器优化设计[J]. 湖南电力, 2024, 44(5): 81-86.

ZHOU Xuehuan, ZENG Ping, LIU Zhigang, CHEN Qian, CHENG An, ZHANG Zequan, CAI Xinjing. Electromagnetic Wave Propagation Characteristics Analysis in Partial Discharge of Cable Joint and Sensor Optimation Design of Sensor[J]. Hunan Electric Power, 2024, 44(5): 81-86.

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电缆中间接头局部放电电磁波传播特性分析及传感器优化设计

Electromagnetic Wave Propagation Characteristics Analysis in Partial Discharge of Cable Joint and Sensor Optimation Design of Sensor

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