Robust H∞ control for uncertain T-S fuzzy systems with state and input delays

Robust H∞ control for Takagi-Sugeno (T-S) fuzzy systems with time-varying state and input delays is considered. At first, delay-dependent criterion for fuzzy system without uncertainties is proposed to design the H∞ control. Next, the delay-dependent criterion for uncertain fuzzy systems has been obtained by simple derivation. The LMI optimization approach is applied to solve the H∞ control problem and find the minimization of H∞ norm bound.