Backstepping fault tolerant control for induction motor

Abstract

This paper deals with fault tolerant control (FTC) for a high performance induction motor (IM) based on backstepping strategy implicitly tolerant to defects assuming the effect of the fault on the system (IM) can be modeled by an exogenous signal from a stable autonomous system. An additive term is added to the nominal offset and serves to control the effect of the defect (FTC aspect). This additive term is derived from the internal model whose role is to reproduce the signal representing the effect of the defect (FDI aspect). The proposed fault-tolerant controller for IM may be realized in presence of both rotor and stator electrical faults. Simulation tests confirm widely the feasibility and the effectiveness of the proposal FTC of IM based on the backstepping control.