Adaptive Fuzzy Output Feedback Control for High-Order Switched Systems with Fuzzy Dead Zone |
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| Institution: | 1. College of Information Sciences and Technology, Bohai University, Jinzhou 121013, China;2. College of Engineering, Bohai University, Jinzhou 121013, China;3. College of Navigation, Dalian Maritime University, Dalian 116026, Liaoning, China;1. Institute of Automation, Qufu Normal University, Qufu, Shandong Province, 273165, PR China;2. Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, 70101, Taiwan;3. School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang Province, 310018, PR China;1. School of Science, University of Science and Technology Liaoning, Anshan, Liaoning 114051, PR China;2. School of Mathematical College, Chongqing Normal University, Chongqing 401331, PR China;3. Institute of Advanced Technology, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, PR China;4. Control and Computer Engineering, North China Electric Power University, Beijing 102206, PR China;5. Department of Electrical Engineering, Yeungnam University, 280 Daehak-Ro, Kyongsan 38541, Republic of Korea;1. School of Information, Shanxi University of Finance and Economics, Taiyuan 030006, China;2. Department of Automation, Shanxi University, Taiyuan 030006, China;3. College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China;1. School of Mathematics and Physics, Bohai University, Jinzhou, Liaoning, PR China;2. Department of Systems and Computer Engineering, Carleton University, Ottawa, ON K1S 5B6, Canada;3. Institute of Automation, Qufu Normal University, Shandong Province 273165, China;4. Faculty of Engineering, Lakehead University, Thunder Bay, ON, Canada;5. Department of Mathematics, Quaid-I-Azam University, 45320, Islamabad 44000, Pakistan;6. Department of Electrical & Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia |
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| Abstract: | In this paper, an observer-based adaptive control problem for a class of high-order switched nonlinear systems in non-strict feedback form with fuzzy dead zone and arbitrary switchings is investigated. Fuzzy logic system was utilized to model the unknown nonlinear function with the universal approximation ability. An adaptive high-order observer is constructed to estimate unavailable state variables. The effect of dead zone can be eliminated by a Nussbaum function. By using the Lyapunov stability theory and backstepping design procedure, the proposed adaptive controller can guarantee all the variables in the closed-loop system are semi-globally uniformly ultimately bounded (SGUUB). Simulation results are exhibited to demonstrate the effectiveness of the proposed control scheme. |
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