An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape

The flux switching permanent magnet motor is a kind of double-salient machine with good speed regulation performances and application prospects. However, in traditional sub-domain models which are used to exactly calculate the magnetic field of the flux switching permanent magnet motor, the orders o...

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Main Authors: Jianhui Hu, Fei Liu, Yong Li
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9399132/
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author Jianhui Hu
Fei Liu
Yong Li
author_facet Jianhui Hu
Fei Liu
Yong Li
author_sort Jianhui Hu
collection DOAJ
description The flux switching permanent magnet motor is a kind of double-salient machine with good speed regulation performances and application prospects. However, in traditional sub-domain models which are used to exactly calculate the magnetic field of the flux switching permanent magnet motor, the orders of major harmonics can not be intuitively obtained. The computational efficiency and practicality of the sub-domain models are limited. Meanwhile, some errors are caused in the equivalent process of iron slot shapes. Aiming at these problems, an improved sub-domain model is proposed in this paper. The major magnetic field harmonics are selected in advance for each sub-domain region by the magnetic permeance function model of the air gap. In addition, the influence of the slot shape equivalence is corrected by the magnetic permeability of slots, and the accuracy of the sub-domain calculation is improved. The proposed model is verified to have the advantages of high accuracy and fast computing speeds by 2-D finite element analysis. A convenient and reliable approach for flux switching permanent magnet motor designs is provided thereby.
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spelling doaj.art-063b3486141d42ff950f93df084134c62022-12-21T20:21:34ZengIEEEIEEE Access2169-35362021-01-019552605527010.1109/ACCESS.2021.30717929399132An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot ShapeJianhui Hu0https://orcid.org/0000-0002-5688-4269Fei Liu1https://orcid.org/0000-0002-7589-2299Yong Li2https://orcid.org/0000-0003-4743-0860Electrical Engineering Department, Harbin Institute of Technology, Harbin, ChinaElectrical Engineering Department, Harbin Institute of Technology, Harbin, ChinaElectrical Engineering Department, Harbin Institute of Technology, Harbin, ChinaThe flux switching permanent magnet motor is a kind of double-salient machine with good speed regulation performances and application prospects. However, in traditional sub-domain models which are used to exactly calculate the magnetic field of the flux switching permanent magnet motor, the orders of major harmonics can not be intuitively obtained. The computational efficiency and practicality of the sub-domain models are limited. Meanwhile, some errors are caused in the equivalent process of iron slot shapes. Aiming at these problems, an improved sub-domain model is proposed in this paper. The major magnetic field harmonics are selected in advance for each sub-domain region by the magnetic permeance function model of the air gap. In addition, the influence of the slot shape equivalence is corrected by the magnetic permeability of slots, and the accuracy of the sub-domain calculation is improved. The proposed model is verified to have the advantages of high accuracy and fast computing speeds by 2-D finite element analysis. A convenient and reliable approach for flux switching permanent magnet motor designs is provided thereby.https://ieeexplore.ieee.org/document/9399132/Sub-domain modelflux switching permanent magnet machinemagnetic field calculationharmonic selectioncorrection of slot shape equivalence
spellingShingle Jianhui Hu
Fei Liu
Yong Li
An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape
IEEE Access
Sub-domain model
flux switching permanent magnet machine
magnetic field calculation
harmonic selection
correction of slot shape equivalence
title An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape
title_full An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape
title_fullStr An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape
title_full_unstemmed An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape
title_short An Improved Sub-Domain Model of Flux Switching Permanent Magnet Machines Considering Harmonic Analysis and Slot Shape
title_sort improved sub domain model of flux switching permanent magnet machines considering harmonic analysis and slot shape
topic Sub-domain model
flux switching permanent magnet machine
magnetic field calculation
harmonic selection
correction of slot shape equivalence
url https://ieeexplore.ieee.org/document/9399132/
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AT feiliu animprovedsubdomainmodeloffluxswitchingpermanentmagnetmachinesconsideringharmonicanalysisandslotshape
AT yongli animprovedsubdomainmodeloffluxswitchingpermanentmagnetmachinesconsideringharmonicanalysisandslotshape
AT jianhuihu improvedsubdomainmodeloffluxswitchingpermanentmagnetmachinesconsideringharmonicanalysisandslotshape
AT feiliu improvedsubdomainmodeloffluxswitchingpermanentmagnetmachinesconsideringharmonicanalysisandslotshape
AT yongli improvedsubdomainmodeloffluxswitchingpermanentmagnetmachinesconsideringharmonicanalysisandslotshape