摘要
提出了一种利用故障分量中的暂态电流分量实现双回线继电保护的新原理。通过比较故障后双回线上两支路暂态电流分量的相关度来判断区内、外故障。讨论了该保护的动作判据和动作特性,理论分析和仿真计算证明了所提保护原理的正确性和方案的可行性。
A new principle for double-circuit transmission line protection based on transient protection theory is suggest, The correlation degree between two circuits is used to distinguish the internal and external faults.The action criteria and action performance in this scheme are discussed. The faults branch is selected by branch transient current magnitude.The EMTP simulation verifies the feasibility of the principle.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2006年第2期50-53,共4页
Journal of North China Electric Power University：Natural Science Edition
关键词
暂态分量
双回输电线路
相关度
继电保护
transient current component
double-circuit transmission line
correlation
