Analytical Model of Open-Circuit Air-Gap Field Distribution in Interior Permanent Magnet Machines Based on Magnetic Equivalent Circuit Method and Boundary Conditions of Macroscopic Equations

Ma, C; Zhang, J; Wang, J; Yang, N; Liu, Q; Zuo, S; Wu, X; Wang, P; Li, J; Fang, J

Analytical Model of Open-Circuit Air-Gap Field Distribution in Interior Permanent Magnet Machines Based on Magnetic Equivalent Circuit Method and Boundary Conditions of Macroscopic Equations

Ma, C Zhang, J Wang, J Yang, N Liu, Q Zuo, S Wu, X Wang, P Li, J Fang, J

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Transactions on Magnetics, 2021, 57, (3)
Issue Date:: 2021-03-01

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Field	Value	Language
dc.contributor.author	Ma, C
dc.contributor.author	Zhang, J
dc.contributor.author	Wang, J
dc.contributor.author	Yang, N
dc.contributor.author	Liu, Q
dc.contributor.author	Zuo, S
dc.contributor.author	Wu, X
dc.contributor.author	Wang, P
dc.contributor.author	Li, J
dc.contributor.author	Fang, J https://orcid.org/0000-0003-0119-6108
dc.date.accessioned	2022-01-13T07:02:13Z
dc.date.available	2022-01-13T07:02:13Z
dc.date.issued	2021-03-01
dc.identifier.citation	IEEE Transactions on Magnetics, 2021, 57, (3)
dc.identifier.issn	0018-9464
dc.identifier.issn	1941-0069
dc.identifier.uri	http://hdl.handle.net/10453/153072
dc.description.abstract	To accurately and quickly predict the open-circuit air-gap magnetic field in interior permanent magnet synchronous machines (IPMSMs), an analytical model based on magnetic equivalent circuit (MEC) method is proposed. The analytical model can provide radial and tangential components of open-circuit magnetic field in the slotless air gap. The radial component is obtained from the MEC model, and the tangential component is obtained from boundary conditions of macroscopic equations. Then, a complex relative air-gap permeance is applied to take the effect of slots into account. As a result, an accurate solution of both radial and tangential components of the flux density in the slotted air gap is obtained. Additionally, the no-load back electromotive force (EMF) and cogging torque are calculated based on the open-circuit air-gap magnetic field. All the analytical results are verified by the finite element (FE) analysis and they are well matched. In the end, a direct measurement experiment of open-circuit air-gap magnetic field is proposed to verify the validity of both radial and tangential open-circuit air-gap magnetic fields.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Transactions on Magnetics
dc.relation.isbasedon	10.1109/TMAG.2021.3051498
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 09 Engineering
dc.subject.classification	Applied Physics
dc.title	Analytical Model of Open-Circuit Air-Gap Field Distribution in Interior Permanent Magnet Machines Based on Magnetic Equivalent Circuit Method and Boundary Conditions of Macroscopic Equations
dc.type	Journal Article
utslib.citation.volume	57
utslib.for	02 Physical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
dc.date.updated	2022-01-13T07:02:12Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	57
utslib.citation.issue	3

Abstract:

To accurately and quickly predict the open-circuit air-gap magnetic field in interior permanent magnet synchronous machines (IPMSMs), an analytical model based on magnetic equivalent circuit (MEC) method is proposed. The analytical model can provide radial and tangential components of open-circuit magnetic field in the slotless air gap. The radial component is obtained from the MEC model, and the tangential component is obtained from boundary conditions of macroscopic equations. Then, a complex relative air-gap permeance is applied to take the effect of slots into account. As a result, an accurate solution of both radial and tangential components of the flux density in the slotted air gap is obtained. Additionally, the no-load back electromotive force (EMF) and cogging torque are calculated based on the open-circuit air-gap magnetic field. All the analytical results are verified by the finite element (FE) analysis and they are well matched. In the end, a direct measurement experiment of open-circuit air-gap magnetic field is proposed to verify the validity of both radial and tangential open-circuit air-gap magnetic fields.

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http://hdl.handle.net/10453/153072