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Optimal design of an interior permanent magnet synchronous motor with a spliced type rotor
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[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2017年08
Page:
62-71
Research Field:
Publishing date:

Info

Title:
Optimal design of an interior permanent magnet synchronous motor with a spliced type rotor
Author(s):
?SI Meng 12? YANG Xiang-yu 1 ZHAO Shi-wei 1 SI Ji-kai 3
?( 1.School of Electric Power,South China University of Technology,Guangzhou 510640,China;
2.State Grid Chongqing Electric Power Corporation Chongqing Power Research Institude,Chongqing 401123,China;
3.School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China)
Keywords:
permanent magnet synchronous motor spliced type rotor flux barrier optimization Taguchi method
PACS:
TM 351
DOI:
10.15938/j.emc.2017.08.009
Abstract:
Considering that the flux leakage coefficients of conventional interior permanent magnet synchronous motors ( IPMSM) are relatively high,and the mechanical strengths of the rotor bridges are relatively low,a kind of spliced type rotor is proposed.The spliced type rotor has several individual iron core parts,which are spliced together by high strength nonmagnetic components using dovetail slots.The rotor does not require bridges,and hence the leakage flux of the rotor can be restricted effectively.There are several flux barriers ( air slots) in the iron core parts of the spliced type rotor,and these flux barriers can influence the magnetic field distributions in the air gap and realize a near-sinusoidal air gap flux density waveform.The initial design parameters of a 3 kW motor based on the spliced type rotor were obtained from the initial design process,and several key parameters of the rotor flux barriers were optimized by using the Taguchi method.A comparative analysis of the spliced type rotor and a conventional interior permanent magnet rotor was performed,and the comparative analysis results show that the spliced type rotor is superior to the conventional interior permanent magnet rotor.

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Last Update: 2017-11-20