A Proposed Active Flux Based Sensorless Control of Cage-Rotor Synchronous Reluctance Motor

Abstract

Elimination of the position sensor reduces the cost and simplifies the drive system. This paper investigates the sensorless operation of a synchronous reluctance motor (SynRM) equipped with a cage. The concept of active flux is extended to involve this type of motor (cage-rotor SynRM). The performance of the drive system under the proposed control method is compared to the reported technique in the literature for cageless SynRM. The sensorless operation of cage rotor SynRM is investigated under different operating conditions. Matlab/Simulink software is used for modeling and analysis of the proposed method. The obtained results assured the successful application of the extended concept to the cage-rotor SynRM.