voltage of the motor leads to a non-sinusoidal flux density which increases the core losses. Therefore, accurate estimation of core losses at various conditions is essential in the optimal design of the motor. Owing to the non-uniform flux density in the machines, core loss analysis is a challenging problem. The core losses mainly consist of static and dynamic components. The static component is the hysteresis loss occurring even at zero frequency. The dynamic component is divided into eddy current losses and excess losses which is the result of magnetic domain walls variations. Since the components of the losses have different origins, they