DocumentCode :
3110644
Title :
Study on reducing cogging torque of Interior PM Motor for electric vehicle
Author :
Yong-un Park ; Ju-Hee Cho ; Sung-Geun Song ; Dong-Hwa Chung ; Ji-Young So ; Dae-kyong Kim
Author_Institution :
Dept. of Electr. Control Eng., Sunchon Nat. Univ., Sunchon, South Korea
fYear :
2012
fDate :
9-12 Oct. 2012
Firstpage :
171
Lastpage :
175
Abstract :
This paper proposes a new design of rotor shape of Interior Permanent Magnet Synchronous Motor (IPMSM) used for agricultural electric vehicle (AEV). The distribution of the residual magnetic flux density at the air gap is modified by rotor surface shape and V-type magnet angle. As a result, cogging torque and physical characteristic have been improved, and back electromotive force (back-EMF) of the suggested model has been improved to be closest to sine wave form compared to initial model. The validity of the proposed rotor shape optimization is confirmed by the manufactured IPM rotor core and measured the performance of the cogging torque.
Keywords :
agricultural machinery; air gaps; automobiles; electric potential; electric vehicles; machine control; magnetic flux; permanent magnet motors; synchronous motors; torque control; torque motors; AEV; IPM rotor core manufacturing; IPMSM; V-type magnet angle; agricultural electric vehicle; air gap; back electromotive force; back-EMF; cogging torque reduction; interior permanent magnet synchronous motor; residual magnetic flux density distribution; rotor surface shape optimization; sine wave form; Harmonic analysis; Lamination;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2012 IEEE
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0953-0
Type :
conf
DOI :
10.1109/VPPC.2012.6422519
Filename :
6422519
Link To Document :
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