An Iron Loss Calculating Method for AC Filter Inductors Used on PWM Inverters

The authors have reported a novel iron loss calculating method based on a loss-map of the magnetic materials. A distinctive feature of this method is that the iron loss on the inductors can easily be calculated in many kinds of converters. In this paper, a novel iron loss calculating method of the AC filter inductor on the PWM inverter by using the loss-map is proposed. This method enables to calculate the iron loss due to the dynamic minor loops by using the loss map and conventional circuit simulator. The relation between the control method for the PWM inverter and the iron loss is discussed. Finally, the effectiveness of this method is verified through 500 W experimental set-up