This paper presents a fault tolerant control (FTC) based on the type-2 fuzzy logic system (IT2FLS) using an adaptive control law for a double star induction machine (DSIM) under broken rotor bars (BRB) fault of a squirrel-cage in order to improve its reliability and availability. The adaptive fuzzy control is designed to compensate for the fault effect. The proposed FTC is able to maintain acceptable performance in the event of BRB. The stability of the closed-loop is verified by exploitation of Lyapunov theory. To proof the performance and effectiveness of the proposed FTC, a comparative study within sliding mode control (SMC) is carried out. Obtained results show that the proposed FTC has a better robustness against the BRB fault.
double star induction machine, interval type-2 fuzzy logic system, adaptive control, sliding mode control, fault tolerant control, broken rotor bars
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