中国电机工程学报2011，Vol.31Issue(4)：24-30,7.
主动解列控制中电网弱连接的一种在线识别方法
An On-line Weak-connection Identification Method for Controlled Islanding of Power System
摘要
Abstract
The weakly-connected ties in a power system are determined by the system's topology and real-time operating state. When cluster instability occurs, the interface among the out-of-step generator groups will mainly distribute among these weakly-connected ties. In islanding control, it is imperative to identify the weakly-connected ties in the system and search for the splitting cut-sets among these wealdyconnected ties. Based on the slow coherency theory, this paper analyzed the sensitivity of slow mode eigenvalues to line parameters and proposed a novel method for the identification of weakly-connected ties. The analytical expression of the sensitivity of eigenvalues on line parameters was derived and the detailed steps of weakly-connected ties identification were designed. The effectiveness of this method was demonstrated through case studies on a test system and the East-China grid.Finally, the paper also discussed how to apply the method in practical engineering.关键词
电网/慢同调/弱连接/主动解列/电力系统分类
信息技术与安全科学引用本文复制引用
倪敬敏,沈沉,李颖,谭伟..主动解列控制中电网弱连接的一种在线识别方法[J].中国电机工程学报,2011,31(4):24-30,7.基金项目
国家自然科学基金项目(50777032) （50777032）
新世纪优秀人才支持计划项目(NCET-08-0317). （NCET-08-0317）
