电力系统保护与控制Issue(15)：8-14,7.
一侧同杆四回线与两侧同杆双回线构成的T型输电线路故障测距新方法
A new fault locating of T-type transmission line consisting of four parallel-line and double circuit
摘要
Abstract
Based on the characteristics of mixed lines composed by four-circuit lines and double-circuit lines on the same tower, the corresponding inverted-sequence positive sequence networks are proposed. on the basis, this paper combines with negative current and positive current and uses the relationship that the negative and positive voltage from bus beginning terminal of fault branch to fault point is equal to the voltage from the T branch node to fault point to derive the fault location equation. According to the solution of the equation, its fault side and fault locating are detected simultaneously. Results of PSCAD/EMTDC simulation verify that the new scheme is accurate and not influenced by fault type, transition resistance, system operating mode and other factors on locating precision.关键词
同杆四回线/同杆双回线/反序电流/混合线路/故障测距Key words
four parallel-line on same tower/double-circuit line on same tower/inverted-sequence current/mixed lines/fault locating分类
信息技术与安全科学引用本文复制引用
于仲安,程明钊,郭培育,邰能灵..一侧同杆四回线与两侧同杆双回线构成的T型输电线路故障测距新方法[J].电力系统保护与控制,2014,(15):8-14,7.基金项目
国家自然科学基金资助项目(51177066；51377104)This work is supported by National Natural Science Foundation of China (No.51177066 and No.51377104) （51177066；51377104）
