Nobukazu Hoshi, Tokyo University of Science
When switched reluctance motor (SRM) is driven, higher input dc voltage of inverter, which is drive circuit of SRM, is preferred because SRM winding current can rise or fall faster in higher dc voltage. However, in EV application, it is difficult to use high-voltage battery. As a solution, voltage boost converter is inserted between the battery and the inverter. This solution requires additional reactor; thus, the circuit size becomes large. In this presentation, a novel SRM drive circuit with voltage boost function without additional reactor is presented.