Circuit models for predicting core losses in the stator and rotor of a caged induction machine with sinusoidal supplies

This paper proposes parameterized models to calculate core losses in the stator and rotor of a caged induction machine. The parameters are identified from results of finite element simulations, using a differential evolution search algorithm. To account for flux distribution and frequency characteristics, it is found that variable hysteresis flux power coefficients are independently required for both the stator and rotor. In addition, a rotor core loss coefficient is necessary.