摘要
研究了具有不确定参数非线性系统的稳定最优模糊保代价控制问题。采用T-S模糊模型描述非线性系统,对具有范数有界,时变参数不确定性的非线性系统,得到了存在稳定最优模糊保代价控制器的充分条件,并推算出了相应的线性矩阵不等式(LMI)形式。建立了永磁同步电动机混沌系统的T-S模型,采用最优模糊保代价控制器进行控制,针对不含参数不确定性和含有参数不确定性两种情况进行仿真研究,均得到满意的控制效果。
The problem of stable optimal fuzzy guaranteed cost control for nonlinear system with parametric uncertainties is studied. The nonlinear system is described by T-S fuzzy model. For nonlinear system with norm bounder time-varying parametric uncertainty, a sufficient condition is derived for stable optimal fuzzy guaranteed cost controller, and the LMI form is derived accordingly. The T-S model is built for chaos characteristics in the permanent-magnet synchronous motors. The satisfied result is got in simulation for system including parametric uncertainties or not including parametric uncertain-ties, by using optimal fuzzy guaranteed cost controller.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2003年第9期152-157,共6页
Proceedings of the CSEE
关键词
永磁同步电动机
混沌系统
非线性系统
最优模糊保代价控制
Permanent-magnet synchronous motors
Chaos
Parametric uncertainty
T-S model
Linear matrix inequality
