【摘要】 在向量场正则形理论的指导下 ,提出了求解向量场非线性相关系数的算法。把线性化分析中的线性相关因子的概念引申到强非线性系统中 ,求得了非线性相关因子。通过对模式的非线性相关作用的研究 ,得到了在小干扰稳定分析中起着重要作用的低频振荡模式在大干扰下仍将是影响系统动态特性的重要因素这一新观点更多还原

【Abstract】 On the basis of the normal form theory of vector fields, an algorithm to calculate the nonlinear participation coefficient is presented. The concept of linear participation factor in linearization analysis is introduced to strong nonlinear systems to obtain the nonlinear participation coefficients. By studying the nonlinear interactions of various oscillation modes, it is concluded that the low frequency oscillation modes in small-signal stability analysis still play an important role in deciding system oscillation stability when subject to large disturbances.更多还原