A New Torque Sharing Function for Multi-Stage Switched Reluctance Motors using a Step-Skewed Rotor

This paper proposes a new torque sharing function for a multi-stage switched reluctance motor using a step-skewed rotor. The operational point to decide the sharing torque of each stack is moved on the inscribed circle of the triangle at constant speed. The reference torque of each stack can be calculated from the coordinates of the operational point. The reference current profiles have no overlapped period. The more effective torque ripple reduction can be realized.