摘要
推导了原系统空间(X空间)中稳定边界的表达式,通过判断持续故障轨迹何时与它相交可以求取临界切除时间,并与线性系统空间(z空间)中求取的临界切除时间作了比较:采用Normal Form变换方法在原系统空间中求轻微故障时的临界切除时间较有效,而在线性系统空间中求严重故障时的临界切除时间较有效,最后对这两种情况进行了对比分析。
The formulate of stability boundary in original system space (X space) are derived. This paper can determine the critical clearance time by judging when the trajectory on fault will intersect with stability boundary and compare this time with that in linear system space (Z space) :the method is effectual when it is applied to slight fault in X space and to serious fault in Z space. Finally, two cases are contrastively analyzed .
出处
《东北电力学院学报》
2004年第4期1-5,共5页
Journal of Northeast China Institute of Electric Power Engineering
