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摘要: 提出了一种新的基于观测器的T-S模糊系统稳定性分析方法.文中将基于观测器的 T-S模糊系统划分为主导子系统与关联系统之和的形式,采用切换控制,针对前提变量部分可 测的情况,利用向量Lyapunov函数方法给出了基于观测器的系统稳定性条件,并依此得出了一 种模糊控制系统规范化的设计方法.结论还可推广到前提变量不可测及可测的情况,并通过仿 真算例得以验证.
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关键词:
- T-S模糊系统 /
- 切换控制 /
- 观测器 /
- 稳定性 /
- 向量Lyapunov函数
Abstract: A new way to analyze stability issues of T-S fuzzy system based on observers is investigated. A T-S system based on observers is regarded as the integration of a dominant subsystem and its interactive systems. The control law is a kind of switching control. Stability condition and design algorithm of the fuzzy system based on observers are devised using the vector Lyapunov function approach for partly observable premise variables. Corresponding conditions can also be obtained for two cases with respect to observable premise variables and unobservable ones. An example is also given.-
Key words:
- T-S fuzzy systems /
- switching control /
- observers /
- stability /
- vector Lyapunov function
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