Improvement of pole-splitting permanent-magnet vernier machine with permanent magnets on both stator and rotor sides

Author

Le Sun ; Ming Cheng

Author_Institution

Sch. of Electr. Eng., Southeast Univ., Nanjing, China

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

1556

Lastpage

1561

Abstract

In this paper, the pole-splitting permanent-magnet vernier (PSPMV) machines with improved torque density has been proposed to meet the demands of hybrid electric vehicle (HEV) drive system. Consequent pole rotor and stator permanent magnet are both implemented to improve the performance of PSPMV for Low-Speed Large-Torque (LSLT) applications. These measures reduce the flux leakage and utilize the vacuous spaces between the flux-modulation poles; consequently, the torque density is improved significantly. The operation principle is analyzed. The utilization efficiency of the PMs is discussed in detail. Finally, by using the finite element method (FEM), the performance of the proposed motor is evaluated.

Keywords

finite element analysis; permanent magnet machines; permanent magnets; rotors; stators; FEM; LSLT applications; finite element method; flux leakage reduction; flux-modulation poles; low-speed large-torque applications; operation principle; pole rotor; pole-splitting permanent-magnet vernier machine; stator permanent magnet; torque density improvement; utilization efficiency; Magnetic flux leakage; Permanent magnet motors; Reluctance motors; Rotors; Stator windings; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7013732

Filename

7013732