Sampled-data robust H∞ control for T–S fuzzy systems with time delay and uncertainties

摘要: Abstract This paper investigates sampled-data robust H ∞ control for T–S fuzzy systems with time delay and uncertainties. By introducing the free weighting matrices to deal integral items converting coupling time-varying matrix inequalities into a group of decoupling inequalities, an innovative delay-dependent stabilization criterion is first presented. Then, controller designed stabilize system achieve prescribed disturbance attenuation level, which dependent on both size state upper bound allowable sampling period. Since (1) sawtooth structure fully considered; (2) neither model transformation nor bounding techniques are employed in deriving results; (3) none arbitrarily ignored magnified, less conservative results can be expected. A practical application example given demonstrate effectiveness proposed methods.