A simple predicting method for losses of electrical sheets under arbitrary induction waveform

Induction waveform in the iron core of the electrical machines is not an ideal sinusoidal but distorted waveform according to the non-linear magnetic characteristic, the non-uniform magnetic resistance due to construction of the magnetic circuit and also the use of non-sinusoidal waveform power supply such as PWM inverter and so on. A predicting method for losses under non-sinusoidal induction with minor loops, which is based on the loss separation, was proposed. In this report, a simple predicting method without loss separation has been proposed.