Robust fuzzy fault tolerant control for induction motor subject to sensor fault
by Habib Ben Zina; Moez Allouche; Maha Bouattour; Mansour Souissi; Mohamed Chaabane; Larbi Chrifi-Alaoui
International Journal of Automation and Control (IJAAC), Vol. 12, No. 2, 2018

Abstract: This study presents a strategy of fault tolerant control (FTC) to keep the vector controlled induction motor (IM). The aim is to minimise the effect of the sensor fault and the parametric uncertainties. Firstly, a fuzzy proportional multiple integral observer (PMIO) is used to estimate simultaneously the system state and the sensor fault. Secondly, a feedback robust state tracking control is synthesised to guarantee the control performances. The proposed controller is based on a T-S reference model to specify the desired trajectory. The performances of the trajectory tracking are analysed using the Lyapunov theory and the L₂ optimisation. The gains of the observer and controller are obtained by solving a set of LMIs constraint. Finally, simulation results are given to show the effectiveness of the proposed control scheme.

Online publication date: Wed, 28-Mar-2018

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