电力系统自动化2011，Vol.35Issue(7)：38-41,107,5.
超导储能装置对输电线路纵联电流差动保护的影响分析
Effects of Superconductor Magnetic Energy Storage Device on Pilot Current Differential Protection
摘要
Abstract
A blackout occurred in East China power grid in 2009 and its evolution process are introduced. In accordance with, three stages of failure development, status of equipment concerned and protection information are analyzed respectively. Analysis shows that the fault is a rare and complex one, but improper blocking between 35 kV bus coupler auto-switching (BCAS) and bus differential protection (BDP) is a contribution factor to escalation of the fault. Based on dissection of the BCAS protection and BDP principles in this substation, the mutual blocking relationship between these two protections is analyzed, and hidden failures in the design is pointed out. Eventually, the advices and precaution measures are presented.This work is supported by National Natural Science Foundation of China (No. 50677062), the National High Technology Research and Development Program (863 Program) of China (No. 2008AA05Z210) and Zhejiang Provincial Natural Science Foundation of China (No. R107062).关键词
超导储能装置/纵联电流差动保护/功率振荡/电力系统Key words
bus coupler auto-switching (BCAS)/ bus differential protection (BDP)/ protection blocking/ hidden failure/complex fault引用本文复制引用
龚光军,杨军,彭晓涛,张文嘉,孙元章..超导储能装置对输电线路纵联电流差动保护的影响分析[J].电力系统自动化,2011,35(7):38-41,107,5.基金项目
国家自然科学基金资助项目(50707021). （50707021）
