Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure

The traditional bearingless synchronous reluctance motor (BSynRM) with salient pole rotor has some drawbacks such as high suspension force ripple, low torque density and low power factor. To overcome the above shortcomings, the permanent-magnet-assisted bearingless synchronous reluctance motor (PMa-...

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Main Authors: Yizhou Hua, Huangqiu Zhu, Min Gao, Zongyou Ji
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/4/879
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author Yizhou Hua
Huangqiu Zhu
Min Gao
Zongyou Ji
author_facet Yizhou Hua
Huangqiu Zhu
Min Gao
Zongyou Ji
author_sort Yizhou Hua
collection DOAJ
description The traditional bearingless synchronous reluctance motor (BSynRM) with salient pole rotor has some drawbacks such as high suspension force ripple, low torque density and low power factor. To overcome the above shortcomings, the permanent-magnet-assisted bearingless synchronous reluctance motor (PMa-BSynRM) is proposed. In this paper, two types of PMa-BSynRM rotors with the same number of permanent magnets but different magnetic barrier structures are designed. A traditional BSynRM with a salient pole rotor is introduced, and the electromagnetic and vibration characteristics of the three BSynRM are analyzed and compared. Firstly, the rotor structures of the two PMa-BSynRMs are designed, and the operation principle of the BSynRM is introduced. Secondly, electromagnetic characteristics of the three motors are analyzed and compared in detail using FEA software. Thirdly, the vibration analysis of the three motors is carried out. Finally, the experimental prototype platforms are built. The FEA and experimental results verify that the designed PMa-BSynRM can improve the power factor and torque density of traditional BSynRMs, and the most superior BSynRM among the three is identified.
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spelling doaj.art-c045670a00ae40508ee26301db20c1c62023-12-03T12:51:13ZengMDPI AGEnergies1996-10732021-02-0114487910.3390/en14040879Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor StructureYizhou Hua0Huangqiu Zhu1Min Gao2Zongyou Ji3School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaThe traditional bearingless synchronous reluctance motor (BSynRM) with salient pole rotor has some drawbacks such as high suspension force ripple, low torque density and low power factor. To overcome the above shortcomings, the permanent-magnet-assisted bearingless synchronous reluctance motor (PMa-BSynRM) is proposed. In this paper, two types of PMa-BSynRM rotors with the same number of permanent magnets but different magnetic barrier structures are designed. A traditional BSynRM with a salient pole rotor is introduced, and the electromagnetic and vibration characteristics of the three BSynRM are analyzed and compared. Firstly, the rotor structures of the two PMa-BSynRMs are designed, and the operation principle of the BSynRM is introduced. Secondly, electromagnetic characteristics of the three motors are analyzed and compared in detail using FEA software. Thirdly, the vibration analysis of the three motors is carried out. Finally, the experimental prototype platforms are built. The FEA and experimental results verify that the designed PMa-BSynRM can improve the power factor and torque density of traditional BSynRMs, and the most superior BSynRM among the three is identified.https://www.mdpi.com/1996-1073/14/4/879bearingless synchronous reluctance motorelectromagnetic analysisfinite element analysisvibration analysis
spellingShingle Yizhou Hua
Huangqiu Zhu
Min Gao
Zongyou Ji
Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure
Energies
bearingless synchronous reluctance motor
electromagnetic analysis
finite element analysis
vibration analysis
title Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure
title_full Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure
title_fullStr Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure
title_full_unstemmed Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure
title_short Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure
title_sort design and analysis of two permanent magnet assisted bearingless synchronous reluctance motors with different rotor structure
topic bearingless synchronous reluctance motor
electromagnetic analysis
finite element analysis
vibration analysis
url https://www.mdpi.com/1996-1073/14/4/879
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AT huangqiuzhu designandanalysisoftwopermanentmagnetassistedbearinglesssynchronousreluctancemotorswithdifferentrotorstructure
AT mingao designandanalysisoftwopermanentmagnetassistedbearinglesssynchronousreluctancemotorswithdifferentrotorstructure
AT zongyouji designandanalysisoftwopermanentmagnetassistedbearinglesssynchronousreluctancemotorswithdifferentrotorstructure