摘要
从电力系统内部非线性结构特性出发,运用正则形理论这一有效的非线性分析方法,通过对复合模式在stressed系统中作用的深入研究,提出复合模式成为主导模式可以构成电力系统超低频振荡的振荡模式这一全新看法。从正则形理论复合模式的角度对超低频振荡的产生机理加以阐述,通过时域仿真,并运用Prony方法对其进行检验,表明所提出的这一新见解和新方法的正确性。
Based on the nonlinear inside fabric characteristics of power systems, a new concept is proposed by studying the effects of the combination modes using normal forms method, that is, the oscillation modes of the ultra-low frequency oscillation are just represented by the combination of the fundamental modes when the combination modes become the dominant modes. The appearance of the ultra-low frequency oscillations is explained by means of the effects of the combination modes. The correct of the new concept and the new method are testified in terms of the time domain simulation and the Prony analysis method.
出处
《电工技术学报》
EI
CSCD
北大核心
2007年第8期84-89,共6页
Transactions of China Electrotechnical Society
关键词
超低频振荡
正则形方法
复合模式
非线性相关因子
PRONY分析
Ultra-low frequency oscillation, normal forms method, combination modes, nonlinear participation factor, Prony analysis
