电网技术2012，Vol.36Issue(10)：153-158,6.
基于临界机组对的暂态稳定紧急控制策略
Transient Stability Emergency Control Based on Critical Generator Pairs
摘要
Abstract
To control the transient stability emergency effectively, starting with the information of critical generator pairs a generator tripping/load shedding control strategy based on sensitivity of stability indices of critical generator pairs is proposed. Firstly, the expression of the sensitivity of stability indices of critical generator pairs to control variables is derived and applied to construct constraints of transient stability, and then by means of optimization algorithm the amounts of both tripped generators and shed load needed for emergency control as well as corresponding substations to perform the measures are achieved. Only part of generator information is needed for the proposed method, so the calculation is simple and by means of the sensitivity of stability indices of critical generator pairs the control ability of control quantity to each instable generator can be expressed and its physical meaning is clearer. Simulation results show that the amount of generator tripping and load shedding by the proposed method is less than that by the method based on the sensitivity of margin sensitivity of the whole system.关键词
暂态稳定/紧急控制/灵敏度/临界机组对Key words
transient stability/ emergency control/ sensitivity/ critical generator pairs分类
信息技术与安全科学引用本文复制引用
卢芳,于继来,李彧,高贺男..基于临界机组对的暂态稳定紧急控制策略[J].电网技术,2012,36(10):153-158,6.基金项目
国家863高技术基金资助项目(2011AA05A105) （2011AA05A105）
国家自然科学基金资助项目(50877014,51109050). （50877014,51109050）
