Title :
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
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;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013732
