摘要
应用向量场正规形方法分析电力系统低频振荡,应用正规形方法对电力系统运动方程在平衡点处进行泰勒展开,保留二次项,揭示了非线性模式相关性对电力系统动态特性的影响。通过正规形变换,可以将线性系统中的参与因子的概念扩展到非线性系统中,从非线性参与因子的角度说明了系统各振荡模式之间的非线性相互作用。
In this paper, vector-formal method was implicated to analyze low-frequency oscillator in power system. The influence of non-linear model relevance to power system dynamic characteristics were resealed by Taylor expand in the balance point of power system equations of motion and reserving quadratic term. Through the normal form transformation, participate factor of linear system can expand to nonlinear system. From the perspective of non-linear factor, the non-linear interaction between the oscillator pattems of system was illustrated.
出处
《电力科学与工程》
2009年第2期10-12,共3页
Electric Power Science and Engineering
关键词
低频振荡
正规形
非线性参与因子
电力系统
low-frequency oscillator
normal form
non-linear participate factor
