Direct adaptive fuzzy control with membership function tuning |
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| Authors: | Morteza Moradi Mohammad Hosein Kazemi Elnaz Ershadi |
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| Affiliation: | 1. Islamic Azad University, Nowshahr Branch, Mazandaran, Iran;2. Electrical Engineering Department, Shahed University, Tehran, Iran;3. Department of Electrical Engineering, Engineering Faculty, Science and Research Branch Islamic Azad University, Tehran, Iran |
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| Abstract: | In this paper, a direct self‐structured adaptive fuzzy control is introduced for the class of nonlinear systems with unknown dynamic models. Control is accomplished by an adaptive fuzzy system with a fixed number of rules and adaptive membership functions. The reference signal and state errors are used to tune the membership functions and update them instantaneously. The Lyapunov synthesis method is also used to guarantee the stability of the closed loop system. The proposed control scheme is applied to an inverted pendulum and a magnetic levitation system, and its effectiveness is shown via simulation. Copyright © 2011 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society |
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| Keywords: | Adaptive fuzzy control fuzzy control nonlinear system self structure algorithm |
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