scholarly journals A High-Speed High-Power-Density Non-Heavy Rare-Earth Permanent Magnet Traction Motor

Author(s):  
Tsarafidy Raminosoa ◽  
Randy Wiles ◽  
J. Emily Cousineau ◽  
Kevin Bennion ◽  
Jon Wilkins
2014 ◽  
Vol 971-973 ◽  
pp. 376-379
Author(s):  
Hao Ming Zhang ◽  
Lian Soon Peh ◽  
Ying Hai Wang

Modern motor needs high speed, high efficiency, high power density and low pulsating torque, traditional rare earth permanent magnet motor manifests its limitation. Halbach motor is a novel permanent magnet motor. Analysis of Halbach motor based on ANSYS proves its merits: sinusoidal field, higher air gap flux and lower rotor yoke flux, which can reduce pulsating torque and improve power density, efficiency of the motor, these merits can improve its dynamic characteristics greatly.


Author(s):  
Xiping Liu ◽  
Ya Li ◽  
Zhangqi Liu ◽  
Tao Ling ◽  
Zhenhua Luo

Purpose The purpose of this paper is to propose a permanent magnet-assisted synchronous reluctance machine (PMASynRM) using ferrite magnets with the same power density as rare-earth PM synchronous motors used in Toyota Prius 2010. Design/methodology/approach A novel rotor structure with rectangular PMs is discussed with respect to the demagnetization of ferrite magnets and mechanical strength. Some electromagnetic characteristics including torque, output power, loss and efficiency are calculated by 2D finite element analysis. Findings The results of the analysis show that a high power density and high efficiency for PMASynRM can be achieved using ferrite magnets. Originality/value This paper proposes a novel rotor structure of PMASynRM with low-cost ferrite magnets that achieves high power density as permanent machines with rare-earth PMs.


2015 ◽  
Vol 51 (3) ◽  
pp. 1-4 ◽  
Author(s):  
Jung Moo Seo ◽  
Jong-Suk Ro ◽  
Se-Hyun Rhyu ◽  
In-Soung Jung ◽  
Hyun-Kyo Jung

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