Observer-based H? reliable control for 2-D fuzzy systems

This paper develops a method of fuzzy observer-based H_∞ reliable controller design for two-dimensional (2-D) discrete Takagi-Sugeno (T-S) fuzzy systems. The LMI-based conditions are proposed to guarantee an H_∞ noise attenuation 7 of the whole system under both normal operation and in the presence of some actuator faults. Owing to the introduction of free matrices, the presented design method has a wider range of application and can guarantee a better H_∞ performance of the closed-loop fuzzy control system. Simulation results have demonstrated the effectiveness of the proposed method.