Sensorless Stator Turn-to-Turn fault detection in induction machine based on MRAS observer: Experimental validations

Abstract

In this paper the problem of the stator turn-to-turn fault detection is studied. The proposed technique is based on the residual generates from the error between the faulty system state and the reference system state. A MRAS observer is designed in order to estimate the induction machine state and to detect the stator turn-to-turn fault.
A special three-phase induction machine has been constructed in order simulate true faulty experiments. Simulation and experimental results show the effectiveness of the proposed strategy.