Title :
Novel Dual-Rotor Axial Field Flux-Switching Permanent Magnet Machine
Author :
Hao, Li ; Lin, Mingyao ; Li, Wan ; Luo, Hao ; Fu, Xinghe ; Jin, Ping
Author_Institution :
Sch. of Electr. Eng., Southeast Univ., Nanjing, China
Abstract :
A dual-rotor axial field flux-switching permanent magnet (DRAFFSPM) machine is proposed. A 3-phase 12/10-pole DRAFFSPM machine is designed. The topology and operation principle of the machine are described in detail. The power equation is deduced and the dimensions of the DRAFFSPM machine are determined. The electromagnetic characteristics including the air-gap field distribution, the PM flux-linkage, the back-EMF, and the cogging torque, are investigated based on the 3-D finite element (FE) analysis. The influences of the rotor pole width and the stator slot chamfer on the back-EMF and cogging torque are investigated. It shows that the sinusoidal back-EMF can be gained and the cogging torque can be greatly reduced.
Keywords :
air gaps; electric potential; magnetic flux; permanent magnet machines; rotors; stators; torque motors; 3-phase 12-10 pole DRAFFSPM machine; 3D finite element analysis; FE analysis; PM flux-linkage; air-gap field distribution; back-EMF; cogging torque; dual-rotor axial field flux-switching permanent magnet machine; electromagnetic characteristics; power equation; rotor pole; stator slot chamfer; topology principle; Air gaps; Forging; Permanent magnets; Rotors; Stator windings; Torque; 3-D finite element; Axial field; flux-switching (FS); permanent magnet (PM) machine;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2204964
