摘要
最优励磁控制规律是全部状态量的最优线性组合,很好地克服了传统控制方式中的单纯按机端电压偏差进行比例式调节的弱点。根据线性最优控制理论,设计了线性最优励磁控制系统。动态仿真分析表明,设计出的最优励磁系统能够有效地增加系统的阻尼,提高系统的稳定性,且能够很好地抑制系统的低频振荡,并具有较好的鲁棒性。
The optimal excitation control law is an optimal linear combination of full state quantity,so the optimal excitation control primely overcomes the weakness in the traditional control mode using single quantity of terminal voltage warp to carry out adjustment proportionally.According to the theory of linear optimal control,a linear optimal excitation system was designed.Analysis of dynamic simulation shows that this optimal excitation system can increase the system damping,improving stability,with good low-frequency oscillation suppression and robustness.
出处
《电工电气》
2011年第7期9-13,共5页
Electrotechnics Electric
关键词
最优控制理论
电力系统稳定
励磁系统
低频振荡
optimal control theory
power system stability
excitation system
low-frequency oscillation
