Fault Tolerant Control for Induction Motor Drive Using Descriptor Approach
نویسندگان
چکیده
This paper presents an active fault tolerant control (FTC) strategy for induction motor drive that ensures trajectory tracking and offset the effect of the sensor faults despite the presence of load torque disturbance. The proposed approaches use a fuzzy descriptor observer to estimate simultaneously the system state and the sensor fault. The physical model of induction motor is approximated by the Takagi-Sugeno (T-S) fuzzy technique in the synchronous d-q frame rotating with field-oriented control strategy. The performances of the trajectory tracking are analyzed using the Lyapunov theory and 2 L optimization. Finally the effectiveness of the proposed strategy has been illustrated in simulation results. Key-Words: Induction motor, Fault tolerant control, Trajectory tracking, Takagi-Sugeno, LMI.
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