Direct torque control for the 4-phase switched reluctance motor drives

Abstract

This paper presents a novel control method for the sensorless four phase switched reluctance motor drives, i.e. 8 stator and 6 rotor. The sensorless control is based on direct torque control with direct flux compensation (DFC) for switched reluctance motor drives. The use of direct torque control, implemented in AC drives with a varies degree of success, has yet been completely applied for SRM especially 8/6, 4-phase SRM. Direct torque control strategy implemented to control unit, well known advantages such as simple and robust structure, wide torque speed range and no maintenance. In this paper, we propose a novel way to utilize the 8/6 4 phase switched reluctance motor and the paper then explains the algorithm to be employed in new DTC scheme in SRM drives with simulation results are presented.