电力系统保护与控制Issue(18)：49-55,7.
T型同杆四回线线路故障选线新方法
A new method of fault line selection for teed circuits with four-parallel transmission lines on the same tower
摘要
Abstract
Teed circuits with four-parallel lines on the same tower consist of four-parallel lines on the same tower and quadruple-lines on the same tower. After analyzing the fault line selection, a new method is proposed. The fault region is determined at first, and then the specific fault branch is identified. The mutual electromagnetic effect between four-parallel transmission lines is decoupled to obtain the relationship between the inverted-sequence current of two power source sides. According to that, the fault side is identified and the fault area can be determined quickly. The positive-sequence voltage difference is introduced to detect the fault branch precisely. Both a theoretical analysis and EMTP simulation results show that the method is correct and has high precision. This work is supported by National Natural Science Foundation of China (No. 51177066).关键词
T型同杆四回线/故障选线/反序电流/电压差Key words
teed circuits with four-parallel lines on the same tower/fault line selection/inverted-sequence current/voltage difference分类
信息技术与安全科学引用本文复制引用
郭培育,邰能灵,于仲安,范春菊..T型同杆四回线线路故障选线新方法[J].电力系统保护与控制,2013,(18):49-55,7.基金项目
国家自然科学基金资助项目 （）
