H∞ fuzzy output tracking control of an autopilot with actuator dynamics

This paper investigates the H∞ output tracking control system design of an autopilot applying Takagi-Sugeno (T-S) fuzzy model. The nonlinear dynamics of the autopilot are modeled as a two-rule fuzzy model. Based on the T-S fuzzy model, an observer-based controller is designed to achieve the required tracking performance. A compensator is proposed by using backstepping method to compensate for the influence of the actuator dynamics. Performance and stability analysis for the designed control system are deduced in this work. Finally, simulation results show the effectiveness of the proposed design.