Static Output Feedback Fuzzy Controller Design via a Mixed Approach for Regional T-S Fuzzy System

This paper proposes a Takagi-Sugeno (T-S) fuzzy region model to relax the original one. Such switching concept has got rid of Parallel Distributed Compensation (PDC) complicated analysis. By mixing genetic algorithm (GA) and linear matrix inequality (LMI), we present a new hybrid approach about the static output feedback controller design. It is unlike other researches that involve complicated mathematic transformations and system constraints. In this paper, we fix the static output feedback gains by GA to solve the non-convex problem. It is proved that the existence of a set of solvable non-linear matrix inequality (NLMI) suffices to guarantee the stabilization of T-S fuzzy region system. Numerical examples are given to illustrate the effectiveness of the algorithm and validate the new method.