Parameter calculation of the hybrid excitation synchronous machine system utilizing tooth harmonic for excitation

To obtain the operation characteristics of the hybrid excitation permanent magnet synchronous generator (HEPMSG) utilizing tooth harmonic for excitation quickly, it is important to calculate the parameter. Based on the air-gap permeance method, this paper derives the inductance parameter considering the slots of stator and rotor. And the amplitude and phase angle of the inductance parameter are calculated using finite element method(FEM). According to the inductance parameter and circuit equation, the armature winding voltage and current, and the field current are obtained. The tested results verify the correctness of the parameter calculation.