XLPE电缆局部放电在线监测系统研究

山东大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (4): 126-131.

XLPE电缆局部放电在线监测系统研究

随慧斌¹,李靖强²,杨晓娟²,张存明^2,徐斌²,颜彦²,刘长征²,徐文²

1.山东大学电气工程学院,山东济南 250061; 2. 济宁市供电公司,山东济宁 272100

收稿日期:2012-02-13 出版日期:2012-08-20 发布日期:2012-02-13
作者简介:随慧斌(1974- ),女,山东济宁人,副教授,博士,主要研究方向为电力系统电压稳定性分析，智能电网与微电网，电力系统设备在线监测.E-mail:suihuibin@sdu.edu.cn

On-line partial discharge monitoring system for XLPE power cable

SUI Hui-bin1, LI Jing-qiang2, YANG Xiao-juan2, ZHANG Cun-ming2, XU Bin2, YAN Yan2, LIU Chang-zheng2, XU Wen2

1. School of Electrical Engineering, Shandong University, Jinan 250061, China;
2. Jining Power Supply Company, Jining 272100, China

Received:2012-02-13 Online:2012-08-20 Published:2012-02-13

摘要/Abstract

摘要：

交联聚乙烯(crosslinked polyethylene,XLPE)电力电缆的局部放电严重影响电缆和电网的运行可靠性。在基于电流互感器测量原理的基础上,提出了一种利用Rogowski线圈测量的XLPE电力电缆局部放电在线监测系统。首先研究了高频电磁耦合传感器的设计,确定了与测量灵敏度相关的参数,并通过实验确定了用于XLPE电力电缆局部放电测量的罗氏线圈参数;设计了监测XLPE电力电缆局部放电的设备和基于光纤通讯的电缆局部放电在线监测系统的整体结构,最后对某变电站运行中的电缆进行了局部放电测试,对监测数据进行分析,结果表明了基于高频罗氏线圈及光纤传输的电缆局部放电在线监测系统的有效性。

关键词: XLPE电缆, 电缆接头, 局部放电, 罗氏线圈, 状态检修

Abstract:

Partial discharge occurred in the cross-linked polyethylene (XLPE) power cable is a serious factor to the power supply reliability of cables and power system. Based on the measuring principle of the current transformer, a Rogowski coil based partial discharge monitoring system for XLPE power cable online monitoring system was proposed. The high frequency electromagnetic coupling sensor was studied, the parameters related to measurement sensitivity were identified, and the Rogowski coil parameters for XLPE power cable partial discharge was determined by experiment. The structure of partial discharge monitoring device and the on-line partial discharge monitoring system based on optical communication cable were designed in detail. The test was carried out on a certain operating cables in a substation. The monitoring data analysis showed the effectiveness of the proposed on-line partial discharge monitoring system for XLPE power cable.

Key words: cross-linked polyethylene(XLPE) cable, cable joint, partial discharge, Rogowski coil, condition based maintenance

随慧斌1,李靖强2,杨晓娟2,张存明2,徐斌2,颜彦2,刘长征2,徐文2. XLPE电缆局部放电在线监测系统研究[J]. 山东大学学报(工学版), 2012, 42(4): 126-131.

SUI Hui-bin1, LI Jing-qiang2, YANG Xiao-juan2, ZHANG Cun-ming2, XU Bin2, YAN Yan2, LIU Chang-zheng2, XU Wen2. On-line partial discharge monitoring system for XLPE power cable[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2012, 42(4): 126-131.

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