Abstract

Sensor reduction is a vital need in the electric vehicle (EV) drive based on synchronous reluctance motor (Syn-Rel) to increase reliability and to save cost. However, adopting sensorless control to achieve a smooth and successful wide speed range remains a challenge. This paper presents the adaptive flux estimator-based speed sensorless control of Syn-Rel motor drive with reliable integrated system. The adaptive speed and position estimation mitigates the sluggishness of the drive for both low and high speed of operation of the Syn-Rel motor drive as compared to the basic stator flux linkage method of speed estimation. It also addresses the solar-assisted system, which is hence used for augmenting the driving range of an electric vehicle. The energy regeneration by regenerative braking is discussed with battery augmentation through kinetic energy of the system. This system is validated in MATLAB/Simulink and the system performance is thoroughly discussed.

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