运用轨迹分析法计算临界机暂稳功率极限的研究

Study on Calculation of the Critical Machine's Transient Stability Power Limit by Using Trajectory Analysis Method

首先针对单机无穷大系统 ,研究了轨迹分析法中发电机稳定指标Si 随其输入功率P0i变化的规律 ;接着在多机系统中验证了该规律对临界机的有效性。

A Varying regularity of generator's stability index S i,by using trajectory analysis method,with its input P oi is revealed in OMIB system.Then the similar regularity is found at the critical machine in multimachine power systerm.By applying this regularity,the efficiency of calculating the critical machine's transient stability power limit can be improved.