A novel iron loss calculation method on power converters based on dynamic minor loop

The authors have reported a novel iron loss calculation 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 dynamically. The dynamic measuring method of the dynamic minor-magnetic loop by using the buck-chopper circuit is presented. Next, some typical characteristics of the loss map derived from the dynamic minor loop measurement is discussed. Also, a novel iron loss calculation method of the ac filter inductor on the PWM inverter by using the loss-map method is described. Some experimental results shows that the iron loss obtained from this calculation method coincides well with the actual one