与主导振荡模式有关的小扰动稳定域边界拓扑性质  

Topological Characteristics of Power System Small Signal Stability Region in Critical Oscillation Modes

作　　者：孙强[1] 余贻鑫[1] 李鹏 贾宏杰[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津市300072 [2]南方电网技术研究中心,广东省广州市510623

出　　处：《电力系统自动化》2007年第15期6-10,共5页Automation of Electric Power Systems

基　　金：国家重点基础研究发展计划(973计划)资助项目(2004CB217904);国家自然科学基金重大项目(50595413)~~

摘　　要：针对4机11节点电力系统,通过详细模型下的仿真发现小扰动稳定域边界上会出现几何形状的突变现象。进一步研究表明,所发现的小扰动稳定域边界的突变是由于对应边界处的主导振荡模式在不同模式间发生了跳跃变化。同时指出,存在造成小扰动稳定域边界突变的其他原因,边界上主导模式的跳跃仅是小扰动稳定域边界突变的一种机理解释。The sudden change of the boundary of small signal stability region （SSSR） is shown through the studies of a 4-generator 11-bus power system models. It is found that this type of sudden change is due to jumpings of the critical oscillation mode between different modes on the corresponding boundary of SSSR. Meanwhile, it is illustrated that there is other mechanism that may result in this sudden change and it could be concluded that jumpings of critical oscillation mode is only one of the causes that lead to drastic changes of the boundary＇s shape of SSSR.

关 键 词：小扰动稳定域 拓扑性质 HOPF分岔 电力系统 

分 类 号：TM712[电气工程—电力系统及自动化]