区域电网电缆—架空线混合线路故障区间判别方法及实现  

Faulty Zone Discrimination Method and Realization for Cable-overhead Mixed Lines in Regional Power Grid

作　　者：李园园[1] 沈军[1] 朱晓彤[1] 王耀[1] 刘革明[1] 

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102

出　　处：《江苏电机工程》2014年第2期64-68,共5页Jiangsu Electrical Engineering

摘　　要：针对电缆-架空线混合线路故障区间定位困难的问题,文中提出了一种面向区域电网的电缆—架空线混合线路故障区间判别方法,该方法主要基于柔性光学电流互感器(TA)和智能变电站技术。具体介绍了区域电网故障区间判别的整体方案、装置实现、检修和异常处理机制。实际运行经验表明,该方案在区域电网内发生故障后可快速准确识别出故障区间,实现故障的快速定位和检修,加快故障后系统恢复供电。This paper proposes a new method to discriminate the faulty zone for cable-overhead mixed lines in regional power grid based on Flexible Optical Current Transducer （FOCT）and smart substation technology. The overall scheme of the new method, as well as the device realization, maintenance and error handling are discussed in details. The practical application of the method indicates that it is effective to discriminate the faulty zone in regional power grid.

关 键 词：电缆-架空线混合线路 区域电网 故障区间 故障区间识别 柔性光学TA 

分 类 号：TM755[电气工程—电力系统及自动化]