Title :
Analytical determination of optimal split ratio for interior permanent magnet synchronous motor
Author :
Yu Chen ; Ronghai Qu ; Wei Xu ; Jian Li
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
This paper shows that the split ratio of the stator inner diameter to the outer diameter has an influence on the air-gap flux density, stator copper loss, thermal load, torque density and cost for interior permanent magnet synchronous motors (IPMSMs) applied in electric vehicles (EVs). This paper presents a simplified analytical method to study the optimization of the split ratio considering both the efficiency and cost. The validity of this method is verified by experiment on a 35kW prototype.
Keywords :
air gaps; electric vehicles; permanent magnet motors; stators; synchronous motors; torque; air gap flux density; electric vehicles; interior permanent magnet synchronous motor; optimal split ratio; power 35 kW; stator copper loss; torque density; Copper; Permanent magnet motors; Stator cores; Stator windings; Thermal loading; Torque; Electric vehicles (EVs); interior permanent magnet synchronous motors (IPMSMs); split ratio; stator copper loss; thermal load;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6940717
