常时滞电力系统鲁棒稳定性分析

Robust Stability Analysis for Power Systems with Constant Time Delay

本文针对常时滞电力系统稳定性问题,构造一种Lyapunov-Krasovskii泛函对其稳定性进行分析。引进积分不等式处理方法处理泛函导数中的积分项,得到常时滞电力系统的鲁棒稳定性判据。以四机11节点系统数值为例,仿真结果表明了本文方法的有效性。

Aiming at the stability problem of power system with constant time delay,a Lyapunov-Krasovskii functional is constructed to analyze the stability of the system in the paper.By introducing integral inequality approach to deal with the integral terms yielded in functional derivatives,the stability criterion is established.Take examples of the four machine with 11 nodes system to show the effectiveness of the proposed method.