Analysis of Soft-switching Converters for Switched Reluctance Motor Drives for Electric Vehicles

Two new soft-switching converters for switched reluctance motor drives are proposed and analyzed. The pro-posed zero-voltage-transition (ZVT) converter possesses the definite advantages that both main transistors and diodes can operate with zero-voltage switching (ZVS), as well as unity device voltage and current stresses. On the other hand, the proposed zero-current-transition (ZCT) converter offers the advantages that both the main and auxiliary switches operate with zero-current switching (ZCS), as well as minimum current and voltage stresses. Both converters have the merits of simple circuit topology, minimum component count and low cost. Keywords soft-switching converters, switched reluctance motor drives, electric vehicle propulsion 1