应用模态级数方法分析电力系统模态谐振

本文推出了一种分析电力系统模态谐振的方法———模态级数(modalseries)方法。用该方法求取2阶解析解不用解高维非线性代数方程,而且把谐振情况和非谐振情况的公式融为一体,推导容易,计算简单。在2阶解析解的基础上推导出了系统谐振时非线性相关因子的表达式。用该方法分析了简单电力系统中出现的模态谐振情况,获得了良好的效果,由此验证了本文所提出方法及谐振时2阶非线性相关因子的正确性。

Power System Mode Resonance Analysis Using Modal Series Method

An method called modal series method is presented for analyzing power system mode resonance.The second order analytic solution may be obtain without computing the high dimension nonlinear algorithm equation which is an extremely difficult compution work. On the other side the resonance and nonresonance condition are all included in the same solution. Therefore the algorithm is simple and easy to use. On the basis of the second order analytic solution, the nonlinear participation factors under mode resonance are got. The mode resonance phenomenon in simple power is analyzed by using the method and good effects are obtain. in this paper the computing result shows the correctness of the methods and the nonlinear participation factors with mode resonance.