Performance Research of Two Topologies of Power Converter for SRM

This paper introduced the principles of the asymmetrical half-bridge type power converter and half-bridge type power converter which typically used for switched reluctance motor, compared the energy ratio, cost-effective, control flexibility and the impact on motor torque of two power converters. The motor we used in this paper is 8/6 structure and the Rated voltage is 24V. In the same control and experimental conditions, we did the starting experiment of the motor which is drove by the two type power converters. In the experimental the motor drags the moment of inertia is 3.08 * 10-2kg · m2 inertia wheel to 1000r/m, with the phase current 140A. The experimental verify that the electric power consumption of H bridge power converter is smaller than the asymmetrical half-bridge type power converter, and the starting torque is larger than the asymmetrical half-bridge type power converter.