Adaptive fuzzy output feedback control for MIMO switched nonlinear systems with prescribed performances

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• 作者：Lili Zhang^a ; ^b ; ^{lutzhanglili@163.com" class="auth_mail" title="E-mail the corresponding author} ; Yongming Li^a ; Shaocheng Tong^a
• 关键词：Switched nonlinear systems ; Fuzzy logic systems ; Prescribed performance ; Average dwell time
• 刊名：Fuzzy Sets and Systems
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：306
• 期：Complete
• 页码：153-168
• 全文大小：1040 K

文摘

This paper proposes an adaptive fuzzy output-feedback control approach for a class of uncertain multiple-input and multiple-output (MIMO) switched nonlinear systems with prescribed performance and immeasurable states. In this research, fuzzy logic systems are used to identify the unknown nonlinear functions, a fuzzy switched state observer is established to observe the unmeasured states. Based on backstepping technique and the prescribed performance theory, a new adaptive fuzzy control method with prescribed performance is developed. It is proved that the proposed control approach can ensure that all the signals of the resulting closed-loop system are bounded, and the tracking errors are within the prescribed performance bounds for all times. Simulation studies illustrate the effectiveness of the proposed approach.