Analytical Core loss Model for the Switched Reluctance Motor with Experimental Verification

Abstract

An analytical model for core loss estimation in a switched reluctance motor (SRM) is presented in this paper. The flux waveforms in different parts of the magnetic circuit of the motor are obtained using a mathematical model. It is shown that excitation and switching sequences can be taken into account in the flux waveforms prediction. A mathematical equation is introduced based on Steinmetz equation which is able to calculate the core losses for non-sinusoidal flux distribution with reasonable accuracy. Measured core losses of a typical SRM are compared with the model results and a good agreement is achieved. This model can be easily applied to other SRMs.