Nine-Phase Flux-Switching Permanent Magnet Brushless Machine for Low-Speed and High-Torque Applications

Author

Feng Li ; Wei Hua ; Minghao Tong ; Guishu Zhao ; Ming Cheng

Author_Institution

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

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

In this paper, a 10 kW/500 r/min nine-phase flux-switching permanent magnet (FSPM) machine for wind power generation system is proposed, analyzed, and designed. First, different topologies with alternative stator slots and rotor poles combinations are compared. Then, both the split ratio and rotor pole width, which have major influences on electromagnetic performance, are optimized, whereas static characteristics, viz., the phase PM flux linkage and electromotive force, cogging torque, inductance, and electromagnetic torque, are predicted by 2-D finite-element analysis (FEA). In addition, the unbalance magnetic force is investigated. Finally, a prototype of a 10 kW 36-stator-slots/34-rotor-poles nine-phase FSPM generator is manufactured and the experimental tests is carried out to verify the theoretical analysis and FEA-based predictions.

Keywords

brushless machines; electric potential; finite element analysis; optimisation; permanent magnet generators; rotors; stators; torque; wind power plants; 2D finite-element analysis; FEA-based predictions; FSPM machine; alternative rotor poles; alternative stator slots; cogging torque prediction; electromagnetic performance; electromagnetic torque prediction; electromotive force prediction; high-torque applications; inductance prediction; low-speed applications; nine-phase FSPM generator; nine-phase flux-switching permanent magnet brushless machine; phase PM flux linkage prediction; power 10 kW; rotor pole width; split ratio; static characteristics; unbalance magnetic force; wind power generation system; Reactive power; Rotors; Stator windings; Topology; Torque; Windings; Brushless machines; flux switching; high torque; multiphase; wind generator;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2364716

Filename

7093475