Techniques for reduction of the cogging torque in claw pole machines with SMC cores

Liu, C; Lu, J; Wang, Y; Lei, G; Zhu, J; Guo, Y

Techniques for reduction of the cogging torque in claw pole machines with SMC cores

Liu, C Lu, J Wang, Y Lei, G

Zhu, J

Guo, Y

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Publication Type:: Journal Article
Citation:: Energies, 2017, 10 (10)
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Liu, C	en_US
dc.contributor.author	Lu, J	en_US
dc.contributor.author	Wang, Y	en_US
dc.contributor.author	Lei, G https://orcid.org/0000-0002-8369-6802	en_US
dc.contributor.author	Zhu, J https://orcid.org/0000-0002-9763-4047	en_US
dc.contributor.author	Guo, Y https://orcid.org/0000-0001-6182-0684	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Energies, 2017, 10 (10)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125096
dc.description.abstract	© 2017 MDPI AG. All Rights Reserved. As one of the main parasitic parameters in permanent magnet (PM) synchronous machines (PMSMs), cogging torque is the main component of the torque ripple, which has always been the handicap in the high-performance, low-speed drive systems. Over the last two decades, various methods have been proposed to decrease the cogging torque in both radial-flux and axial-flux PMSMs. Among these methods, stator slot skewing, stator tooth notching, PM skewing, PM shifting, and pole pairing are extensively investigated. However, little work has been done on reducing the cogging torque of the claw pole machine (CPM), whose cogging torque cannot be ignored. In this paper, the general methods that have been used to reduce the cogging torque in radial-flux and axial-flux PMSMs are developed and verified in a CPM with a soft magnetic composite (SMC) core. The 3-D finite element method (FEM) is used to calculate the cogging torque and PM flux linkage per turn. By comparing different cogging torque reduction technologies, it can be found that the magnet step skewing and unequal claw pole width are very suitable for CPM.	en_US
dc.relation.ispartof	Energies	en_US
dc.relation.isbasedon	10.3390/en10101541	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Techniques for reduction of the cogging torque in claw pole machines with SMC cores	en_US
dc.type	Journal Article
utslib.citation.volume	10	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0203 Classical Physics	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
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 Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	open_access	*
pubs.issue	10	en_US
pubs.publication-status	Published	en_US
pubs.volume	10	en_US

Abstract:

© 2017 MDPI AG. All Rights Reserved. As one of the main parasitic parameters in permanent magnet (PM) synchronous machines (PMSMs), cogging torque is the main component of the torque ripple, which has always been the handicap in the high-performance, low-speed drive systems. Over the last two decades, various methods have been proposed to decrease the cogging torque in both radial-flux and axial-flux PMSMs. Among these methods, stator slot skewing, stator tooth notching, PM skewing, PM shifting, and pole pairing are extensively investigated. However, little work has been done on reducing the cogging torque of the claw pole machine (CPM), whose cogging torque cannot be ignored. In this paper, the general methods that have been used to reduce the cogging torque in radial-flux and axial-flux PMSMs are developed and verified in a CPM with a soft magnetic composite (SMC) core. The 3-D finite element method (FEM) is used to calculate the cogging torque and PM flux linkage per turn. By comparing different cogging torque reduction technologies, it can be found that the magnet step skewing and unequal claw pole width are very suitable for CPM.

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http://hdl.handle.net/10453/125096