Title: Design of Indirect Adaptive Fuzzy Control (IAFC) for Nonlinear Hysteretic Systems
Authors: Wang, Chi-Hsu
Wang, Jyun-Hong
Chen, Chun-Yao
Undergraduate Honors Program of Electrical Engineering and Computer Science
Keywords: hysteretic effect;backlash-like hysteretic system;indirect adaptive fuzzy controller
Issue Date: 1-Jan-2014
Abstract: Nonlinear hysteretic phenomena occur in many physical systems, such as electronic throttle and solenoid valves in automobiles, piezoelectric sensors, and many other mechanical actuators. In order to handle the nonlinear properties of hysteretic systems, an indirect adaptive fuzzy controller (IAFC) is proposed in this paper. However, it is a hard task to directly identify unknown hysteretic effects. Firstly, to overcome this problem, a hysteretic function is employed to construct the nonlinear properties of backlashlike hysteretic systems. Then the existence of an indirect adaptive controller (IAFC) is derived in this paper. Unlike the existing fuzzy control methods, our proposed IAFC can deal with different kinds of hysteretic problems with adaptive and control laws. Based on the learning algorithm, the adaptive and control laws not only can be derived but the stability of the closed- loop system can also be guaranteed by the Lyapunov stability criterion. Finally, MATLAB software is used for simulations, and the results show that our proposed IAFC can effectively handle the nonlinear properties in some unknown hysteretic systems.
URI: http://hdl.handle.net/11536/125052
ISBN: 978-1-4799-2072-3
ISSN: 1544-5615
Begin Page: 1998
End Page: 2005
Appears in Collections:Conferences Paper