Developments in control of switched reluctance motor drives

Switched reluctance motor (SRM) as the name indicates is a machine in which torque is produced by the tendency of its moveable part to move to a position where the inductance of the excited winding is maximized (T.J.E. Miller, 2002). Thus far, SRMs are not established successfully in industry compared to brushless DC motors and induction motors. As per construction of the SRM, there shall not be any reasons as it is simple, ruggedness and winding-less rotor makes it easy for cooling process. However, the primary disadvantages of SRM being torque ripple and acoustic noise. Torque ripple stops SRM to secure place in industry. This problem has to be tackled by introducing appropriate control methods. Many efforts have been put on by researcher around the globe and it seems the problem remain unsolved. In this paper, we are to look at the development on control methodologies introduced and applied, and their success story and the future trends as far as the SRM drives is concern.