摘要
针对威胁电网安全运行的连锁跳闸问题,分析了现有后备保护存在的缺陷,提出了一种基于广域测量系统的潮流转移识别算法,引入了用于估算发生潮流转移后电网潮流分布的潮流转移因子的概念,并给出了严格的定义与计算方法,提出了可识别潮流转移的广域后备保护方案。在3机系统进行了潮流转移仿真,结果表明该广域后备保护方案具有良好的识别潮流转移能力。
In view of the cascading trip induced by backup relays that affects the safe operation of the system and may even cause blackout, after investigating the defects of the existing backup protection, this paper presents a new wide area backup protection strategy based on WAMS to identify the flow transfer. A new concept of flow transfer relativity factor （FTRF） is proposed to estimate the flow distribution after flow transfer occurs, and the strict definition and calculating method are presented. The simulation in a three-machine network shows that the wide-area backup protection strategy proposed to identify flow transfer works well.
出处
《电力系统自动化》
EI
CSCD
北大核心
2006年第14期14-19,共6页
Automation of Electric Power Systems
基金
教育部科学技术研究重点项目(106052)~~
关键词
潮流转移因子
广域后备保护
广域测量系统(WAMS)
电力系统
flow transferring relativity factor
wide area backup protection
wide area measurement system （WAMS）
power systems
