Design and Analysis of a New Consequent-Pole Hybrid Excited Permanent Magnet Machine with DC-biased Current

A new consequent-pole hybrid-excited permanent magnet machine with DC-biased current (CPHEPM-DC machine) is proposed in this paper. The tooth located in the stator can be divided into two types: the main tooth and the auxiliary tooth. The five-phase multifunctional winding is adopted, which can be regarded as both the armature winding and the excitation winding. There are nine U-typed permanent magnets (PMs) placed in the rotor to improve the power density. In order to verify the correctness of the theoretical analysis, some electromagnetic properties, including the back electromotive force (back-EMF), the average output torque and the cogging torque are analyzed by the finite element (FE) method.