Intelligent Optimization of Sliding-Mode Fuzzy Logic Controllers

Optimization is the selection process of the best elements with respect to some criterion from a feasible set of variables. There may be single or multiple objectives to be considered during optimization. The optimization process generally involves the minimization of a cost or maximization of a profit. Sliding mode controller design problem ends up with the selection of values for its parameters which may include trials and errors. In this chapter, using intelligent optimization approaches, the parameters of sliding mode controllers are optimized to minimize the effect of chattering while the tracking error is minimized. Since these two objective functions are conflicting objective functions, it is required to use multiobjective intelligent optimization approaches.