Fuzzy Backstepping Sliding Mode Control for Mismatched Uncertain System
Fuzzy Backstepping Sliding Mode Control for Mismatched Uncertain System is a scholarly work, published in 2014 in ''Journal of Engineering Science and Technology Review''. The main subjects of the publication include Fuzzy control system, Lyapunov function, robot control, Networked control system, Backstepping, Variable structure control, fuzzy logic, computer science, Fractional-order control, control engineering, mode, biological robustness, irrigation controller, nonlinear system, sliding mode control, control theory, and engineering. Sliding mode controllers have succeeded in many control problems that the conventional control theories have difficulties to deal with; however it is practically impossible to achieve high-speed switching control.Therefore, in this paper an adaptive fuzzy backstepping sliding mode control scheme is derived for mismatched uncertain systems.Firstly fuzzy sliding mode controller is designed using backstepping method based on the Lyapunov function approach, which is capable of handling mismatched problem.Then fuzzy sliding mode controller is designed using T-S fuzzy model method, it can improve the performance of the control systems and their robustness.Finally this method of control is applied to nonlinear system as a case study; simulation results are also provided the performance of the proposed controller.