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Rotor strength of high speed axial flux permanent magnet machine with segmented rotor pole structure(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2016年06
Page:
68-76
Research Field:
Publishing date:

Info

Title:
Rotor strength of high speed axial flux permanent magnet machine with segmented rotor pole structure
Author(s):
TONG Wen-ming CI Yuan-ping
 ( National Engineering Research Center for Rare-earth Permanent Magnet Machines, Shenyang University of Technology,Shenyang 110870,China)
Keywords:
axial flux permanent magnet motor high speed segmented rotor pole rotor spider mechani-cal strength electromagnetic performance
PACS:
TM 315
DOI:
10. 15938 / j. emc. 2016. 06. 009
Abstract:
In order to meet the requirements of mechanical strength,radial flux structure is always adopt-ed in high-speed permanent magnet motor. With the development of ultra-thin soft magnetic materials, such as amorphous alloy,high-speed high-frequency permanent magnet motor with axial flux structure is drawing more and more concern. Therefore,a kind of axial flux permanent magnet motor ( AFPMM) with segmented rotor pole structure that is suitable for high-speed operation was studied. An analytical model was built to evaluate the mechanical strength of this type of rotor. Both analytical method and finite ele-ment method were used to study the influence law of rotor strength under different pole arc factors,flange width of rotor,and number of segments of each rotor pole. Meanwhile,the influence law of segmented ro-tor pole structure on the electromagnetic performances of AFPMM,such as air gap flux density,no-load back EMF,cogging torque and torque density was studied. The research work provides a reference for the development of high-speed AFPMM.

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Last Update: 2016-08-20