scholarly journals Design and Analysis for Loss Reduction of High-Speed Permanent Magnet Motor using a Soft Magnetic Composite

2015 ◽  
Vol 20 (4) ◽  
pp. 444-449 ◽  
Author(s):  
Sung-Ho Lee ◽  
Yong-Jae Kim ◽  
Kyu-Seok Lee ◽  
Sung-Jin Kim
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
Magnetic Composite ◽  
Loss Reduction ◽  
Permanent Magnet Motor ◽  
Soft Magnetic ◽  
Soft Magnetic Composite

Application of Soft Magnetic Composite Material in the Field of Electrical Machines

2013 ◽  
Vol 380-384 ◽  
pp. 4299-4302
Author(s):  
Xiao Bei Li ◽  
Jing Zhao ◽  
Zhen Chen
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
Electric Machine ◽  
Magnetic Composite ◽  
Applied Potential ◽  
Soft Magnetic ◽  
Axial Flux ◽  
Permanent Magnet Machine ◽  
Soft Magnetic Composite ◽  
Radial Flux

The property of the soft magnetic composite (SMC) material is introduced. Take the traditional material used for electric machine, i.e. the silicon steel lamination, as the reference, this paper summarizes the application advantages of SMC in the typical electric machine, such as tubular permanent-magnet liner machine, high-speed permanent-magnet machine, claw-pole machine, axial flux permanent-magnet machine and radial flux permanent-magnet machine. SMC material has much applied potential in the field of electric machine.

A Novel Flux-Weakening Structure of High-Speed Permanent Magnet Motor Based on the Soft Ferrite

2013 ◽  
Vol 694-697 ◽  
pp. 1508-1511
Author(s):  
Xing Hua Wang ◽  
Xue Yuan Lin ◽  
Ming Hui Li ◽  
Yu Chen ◽  
Cheng Hui Zhang
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
High Resistivity ◽  
Permanent Magnet Motor ◽  
Soft Magnetic ◽  
Low Loss ◽  
Magnetic Resistance ◽  
The Magnetic Field ◽  
Soft Ferrite ◽  
Flux Weakening

Soft ferrite has the characteristics of high permeability, high resistivity, low loss. Based on this, a new flux-weakening structure of high-speed permanent magnet motor was presented. The structure relies on changing the saturation of soft magnetic ferrite to change the equivalent magnetic resistance of permanent magnet magnetic circuit in the motor, so the main flux of the permanent magnet motor can be reduced. By the 3D Finite Element analyses, the magnetic field distribution characters in the air gap can be pointed out. The analysis results prove the flux-weakening method is presented in this paper is correct and feasible. It can provide a practical flux-weakening method of the high-speed PM motor.

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