基于高频脉冲电流的风电场集电电缆带电检测研究
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摘要
随着可再生能源的兴起,风力发电得到迅速发展。集电电缆作为风力发电系统的重要组成部分,研究其带电检测方法,对提高集电电缆的运行可靠性具有重要意义。本文基于电缆接地线高频脉冲电流对集电电缆开展局部放电带电检测,判断集电电缆的绝缘健康状况和运行状态,以此来提高其运行可靠性。在对某风电场一号集电电缆进行局部放电带电检测时发现了局部放电缺陷,并对现场进行检查,确认电缆接头存在局部放电现象。
With the rise of renewable energy, wind power has been developing rapidly. As an important part of thewind power generation system, the research of live detection method is very important for improving the reliability ofthe power cable. In this paper, based on the high frequency pulse current of the cable grounding wire, the local dis-charge charged detection of the electric cable was carried out to judge the insulation health status and running stateof the electric cable, in order to improve its operation reliability. The partial discharge defect was found when the par-tial discharge charged in a wind electric field 1 electric cable was detected, and the field was checked to confirm thepartial discharge of the cable joint.
With the rise of renewable energy, wind power has been developing rapidly. As an important part of thewind power generation system, the research of live detection method is very important for improving the reliability ofthe power cable. In this paper, based on the high frequency pulse current of the cable grounding wire, the local dis-charge charged detection of the electric cable was carried out to judge the insulation health status and running stateof the electric cable, in order to improve its operation reliability. The partial discharge defect was found when the par-tial discharge charged in a wind electric field 1 electric cable was detected, and the field was checked to confirm thepartial discharge of the cable joint.
引文
[1]王备贝.电力电缆绝缘缺陷检测方法的研究[D].北京:华北电力大学,2013.
[2]李鹤南.高压电缆接头局部放电检测方法[D].北京:华北电力大学,2011.
[3]杜言.交联聚乙烯电缆局部放电在线监测及定位研究[D].重庆:重庆大学,2006.
[4]江秀臣,蔡军,董小兵,等.110kV及以上电压等级交联电缆在线监测技术[J].电力自动化设备,2005(8):13-17.
[5]胡洪飞.基于接地线电流法的电力电缆绝缘在线监测的研究[D].武汉:武汉大学,2004.
[2]李鹤南.高压电缆接头局部放电检测方法[D].北京:华北电力大学,2011.
[3]杜言.交联聚乙烯电缆局部放电在线监测及定位研究[D].重庆:重庆大学,2006.
[4]江秀臣,蔡军,董小兵,等.110kV及以上电压等级交联电缆在线监测技术[J].电力自动化设备,2005(8):13-17.
[5]胡洪飞.基于接地线电流法的电力电缆绝缘在线监测的研究[D].武汉:武汉大学,2004.