摘要
研究了一类输入采用双交叠模糊分划的T-S模糊控制系统稳定性分析及控制器设计问题.基于分段模糊Lyapunov函数,提出了一个新的判定开环T-S模糊系统稳定性的充分条件,该方法只需在各个模糊区间里满足模糊Lyapunov方法中的条件,其保守性比公共Lyapunov函数法和分段Lyapunov函数法的保守性更低.运用并行分布补偿法(PDC)进一步探讨了闭环T-S模糊控制系统的稳定性分析问题并设计了模糊控制器.最后,一个仿真示例说明了本文方法的有效性.
The stability analysis and design techniques of Takagi-Sugeno（T-S） fuzzy control systems whose input vari-zbles employ two-overlapped fuzzy partition are discussed. Based on the piecewise fuzzy Lyapunov function, we propose a new sufficient condition to check the stability of T-S fuzzy control systems. This condition only needs to satisfy the condition of fuzzy Lyapunov function in each fuzzy region. Using the methods of parallel distributed compensation（PDC） and linear matrix inequality（LMI）, we investigate the stability analysis and design of closed-loop T-S fuzzy control systems further. It is shown that the piecewise fuzzy Lyapunov approach is less conservative then those of the common Lyapunov function and the piecewise Lyapunov function. Simulation results verify the efficiency and feasibility of the proposed method.
出处
《控制理论与应用》
EI
CAS
CSCD
北大核心
2010年第3期310-316,共7页
Control Theory & Applications
基金
国家自然科学基金资助项目(60825302,60604018,60774015)
国家“863”计划资助项目(2007AA041403)
