scholarly journals Characteristic analysis of a less-rare-earth hybrid PM-assisted synchronous reluctance motor for EVs application

AIP Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 056648 ◽  
Author(s):  
Wenye Wu ◽  
Xiaoyong Zhu ◽  
Li Quan ◽  
Deyang Fan ◽  
Zixuan Xiang
Keyword(s):  
Rare Earth ◽  
Characteristic Analysis ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor

scholarly journals Design of External Rotor Ferrite-Assisted Synchronous Reluctance Motor for High Power Density

2021 ◽  
Vol 11 (7) ◽  
pp. 3102
Author(s):  
Md. Zakirul Islam ◽  
Seungdeog Choi ◽  
Malik E. Elbuluk ◽  
Sai Sudheer Reddy Bonthu ◽  
Akm Arafat ◽  
...  
Keyword(s):  
Rare Earth ◽  
Permanent Magnets ◽  
Design Procedure ◽  
Lumped Parameter Model ◽  
High Power Density ◽  
Analytical Design ◽  
Synchronous Reluctance Motor ◽  
Lumped Parameter ◽  
Reluctance Motor ◽  
External Rotor

The rare-earth (RE) permanent magnets (PM) have been increasingly adopted in traction motor application. However, the RE PM is expensive, less abundant, and has cost uncertainties due to limited market suppliers. This paper presents a new design of a RE-free five-phase ferrite permanent magnet-assisted synchronous reluctance motor (Fe-PMaSynRM) with the external rotor architecture with a high saliency ratio. In such architecture, the low magnetic coercivity and demagnetization risk of the ferrite PM is the challenge. This limits the number of flux barriers, saliency ratio, and reluctance torque. A precise analytical design procedure of rotor and stator configuration is presented with differential evolution numerical optimizations by utilizing a lumped parameter model. A 3.7 kW prototype is fabricated to validate the proposed idea.

scholarly journals Re-Use and Recycling of Different Electrical Machines

2018 ◽  
Vol 55 (4) ◽  
pp. 13-23 ◽  
Author(s):  
A. Rassõlkin ◽  
A. Kallaste ◽  
S. Orlova ◽  
L. Gevorkov ◽  
T. Vaimann ◽  
...  
Keyword(s):  
Rare Earth ◽  
Permanent Magnet ◽  
Induction Motor ◽  
Permanent Magnets ◽  
Electrical Machines ◽  
Main Attention ◽  
Base Materials ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor

Abstract The paper discusses the current developments in the recycling of electrical machines. The main attention is devoted to three types of motors: synchronous reluctance motor, permanent magnet assisted synchronous reluctance motor, and induction motor. Base materials of such electrical machines are also described in the paper. Rare-earth permanent magnets used in electrical machines are review separately. Moreover, the paper considers the features of the disassembly and recycling options.

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