中心流形方法降维分析电压崩溃中的Fold分岔  

CENTER MANIFOLD METHOD TO SIMPLIFY THE ANALYSIS OF FOLD BIFURCATION ASSOCIATED WITH VOLTAGE COLLAPSE

作　　者：曹国云[1] 王冲[1] 陈陈[1] 

机构地区：[1]上海交通大学电力学院,上海200240

出　　处：《中国电机工程学报》2002年第7期40-43,共4页Proceedings of the CSEE

基　　金：国家重点基础研究专项经费项目(G19980203)。~~

摘　　要：首次应用依赖于参数的动力学系统中的中心流形方法对电力系统电压崩溃相关联的Fold分岔进行简化分析。该方法可在状态-参数空间中的分岔值邻域内,对高维非线性动力系统进行拓扑等价的降维。采用该方法对一典型电力系统的Fold分岔进行分析,结果表明:中心流形方法分析实际工程中的局部分岔现象是可行且有效的。同时,可应用模态分析法来区分电压失稳和功角失稳。S: The reduction approach of center manifold method for the parameter-dependent nonlinear dynamical system is applied to simplify the analysis of Fold bifurcation associated with voltage collapse in a sample power system. This technique enables us to obtain a lower dimensional and topological equivalent system in the neighborhood of the bifurcation point which is a local subset of the state-parameter spaces. The results of the sample power system by means of the method are visualized by 2 and 3 dimensional plots, which show the method is applicable and efficient to analyze local bifurcations in power system. Also, modal analysis is applied to identify voltage stability from rotor angle stability.

关 键 词：中心流形方法 降维分析 电压崩溃 FOLD分岔 电力系统 电压稳定性 

分 类 号：TM712[电气工程—电力系统及自动化]