Abstract
This paper presents a fuzzy-sliding control, based on state feedback methods, to control nonlinear magnetic ball suspension system. Simulations results show that the control speed of fuzzy-sliding-mode controllers is more than the classical sliding mode controllers, but the steady state error of later is less that the earlier. This is due to the limited number of membership functions defined for the input variables of the system. Here, a combination of fuzzy-sliding-mode and state-feedback control is presented. Simulation results show that this controller contains the advantages of both the fuzzy-sliding-mode method (fast response) and the state-feedback scheme (low steady-state error).
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