摘要
引入一种新的扩展小扰动稳定域的概念,以弥补原有小扰动稳定域无法考虑电力系统(超)低频振荡的不足。文中给出了这种扩展小扰动稳定域的定义,讨论了其边界组成及性质,给出了一种基于优化方法求解相关边界的追踪算法,并基于该追踪算法,利用一个3节点和WSCC3机9节点系统分析了扩展小扰动稳定域的构成、边界性质、影响因素等。该研究工作对寻求有效预防系统出现小扰动稳定失稳和避免出现(超)低频振荡具有一定的参考价值。
A new type of extended small signal stability region （E-SSSR） is presented so that it can consider the low frequency oscillation phenomena captured in power system operations. The definition of the extended small signal stability region is first given, and its boundary structure is discussed. Then an optimal-based approach is given to trace E-SSSR＇s boundaries. Finally, a 3-bus system and WSCC 3-generator- 9-bus system are employed to do dome case studies. The region＇s topological characteristics, boundary composition and influence facts are also analyzed based on the case studies. Works of this paper are helpful to find effective methods to avoid various small signal instabilities and low frequency oscillations in power systems.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第21期22-28,共7页
Proceedings of the CSEE
基金
国家自然科学基金重大项目(50595413)
国家重点基础研究专项基金项目(2004CB217904)
全国博士学位论文作者专项资金项目(200439)
教育部重点项目(105047)
新世纪优秀人才支持计划
霍英东优选资助课题(104019)
天津市科技创新能力与环境建设平台项目~~
关键词
电力系统
稳定
超低频振荡
扩展小扰动稳定域
power system
stability
low frequency oscillation
extended small signal stability region
