Constrained Fault Tolerant Control Design for Takagi Sugeno Systems

Abstract

The problem of constrained fault tolerant control (CFTC) with multiobjective requirement is investigated for Takagi-Sugeno systems subject to actuator faults. An integrated FTC strategy is adopted by combining a descriptor approach with the proportional integral observer (PIO) to guarantee the closed-loop system stability of the faulty system. Meanwhile, it can ensure the given saturation constraints on control input and the trajectory tracking performance. Based on Lyapunov theory, the optimization problem is formulated in terms of linear matrix inequalities (LMI). Motorcycle simulation results show the effectiveness of the proposed CFTC approach.