Efficiency comparison of the switched reluctance motor due to the difference in the electromagnetic material

SRM is possible to high output by high speed drive. However, efficiency decreases for increase of iron loss in high speed drive. Therefore, reduction of iron loss is necessary for high efficiency drive. And, we aim to improve of efficiency by electromagnetic steel sheet of low iron loss. We thought Si6.5% electromagnetic steel sheet is suitable to high speed drive application, because Si6.5%material is superior to characteristic of high frequency in the electromagnetic steel sheet material of low iron loss. In this paper, we compare conventional electromagnetic steel sheet and Si6.5% electromagnetic steel sheet. Also use the Si6.5% electromagnetic steel sheet, with the aim to improve the utilization ratio of energy by controlling the firing angle.