摘要
基于实时参数P-δ预测暂态系统稳定性,得到发电机功角δ的预测值,以功角预测值不大于预先设定的门槛值作为暂态稳定的条件,通过引入最优控制原理,在系统暂态稳定的条件下,得到发电机最优输入机械功率调整量,把微分方程所描述的电力系统控制,转化为以发电机输入机械功率为控制量的最优控制,以实现暂态稳定最优控制。
Based on real-time parameter , transient stability is predicted and the predicted value of generator power angle is obtained. Under the conditions that predicted value of power angle is not greater than the pre-set threshold value, the optimal eontrol theory is introduced; under the condition that the system is transiently stable, the adjusted amount for optimal input mechanical power of generators is obtained ; the power system control based on differential e- quation is transformed into the optimal control problem of the generator input mechanical power, with a view to achieving the optimal control of transient stability.
出处
《华东电力》
北大核心
2013年第4期751-754,共4页
East China Electric Power
基金
国家自然科学基金项目(51267017)~~
关键词
参数预测
功角
暂态稳定
最优控制
输入机械功率
调整量
parameter prediction
power angle
transient stability
optimal control
input mechanical power
adjus-ted amount
