Evaluation of rotor conducting screens on the rotor of the single-phase switched reluctance machine

The single-phase 2/2-switched reluctance machine is suitable for high-speed operation. The torque production of the SRM motor is a function of the difference between the aligned and unaligned inductance and increasing this difference will theoretically increase torque. Conducting screens are evaluated on the rotor of a prototype 2/2 single phase SRM. The effect of conducting screen on current response and output torque of the machine are evaluated using FEM software and experimentally. The conducting screen has a negative effect on the output power when using optimal commutation angles. FEM is also used to investigate the current during a stroke of the machine. © 2004 The Institution of Electrical Engineers.