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In this study, the piecewise Lyapunov function based switching fuzzy controller is proposed to get a relaxed criterion for the H∞ control of continuous T-S fuzzy systems. The particle swarm optimization (PSO) algorithm, which is useful for nonlinear optimization problem, is utilized with the LMI tool to get the optimal H∞ performance due to that some conditions of the criterion are bilinear with the s-procedure parameters. The simulation results have shown the validity of the proposed H∞ control method.
Date of Conference: 15-18 Dec. 2009