Copper loss analysis of a multiwinding high-frequency transformer for a magnetically-coupled residential microgrid

Jafari, M; Malekjamshidi, Z; Zhu, J

Copper loss analysis of a multiwinding high-frequency transformer for a magnetically-coupled residential microgrid

Jafari, M

Malekjamshidi, Z

Zhu, J

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Industry Applications, 2019, 55 (1), pp. 283 - 297
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Jafari, M https://orcid.org/0000-0002-8521-8636	en_US
dc.contributor.author	Malekjamshidi, Z https://orcid.org/0000-0002-5951-620X	en_US
dc.contributor.author	Zhu, J https://orcid.org/0000-0002-9763-4047	en_US
dc.date.available	2020-08-07T19:11:51Z
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	IEEE Transactions on Industry Applications, 2019, 55 (1), pp. 283 - 297	en_US
dc.identifier.issn	0093-9994	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126928
dc.description.abstract	© 2018 IEEE. Improvements in characteristics of magnetic materials and switching devices have provided the feasibility of replacing the electrical buses with high-frequency magnetic links in small-scale microgrids. This can effectively reduce the number of voltage conversion stages, size, and cost of the microgrid, and isolate the sources and loads. To optimally design the magnetic link, an accurate evaluation of copper loss of the windings considering both the current waveforms and parasitic effects are required. This paper studies the copper loss analysis of a three-winding high-frequency magnetic link for residential microgrid applications. Due to the nonsinusoidal nature of the voltages and currents, the loss analysis is carried out on a harmonic basis taking into account the variations of phase shift, duty ratio, and amplitude of the waveforms. The high-frequency parasitic phenomena including the skin and proximity effects are taken into account. The maximum and minimum copper loss operating conditions of the magnetic link and their dependency on the phase shift angle and the duty ratio of the connected waveforms are studied. A prototype of the microgrid including the magnetic link is developed to validate the theoretical analysis, evaluate the microgrid efficiency, and perform the loss breakdown.	en_US
dc.relation.ispartof	IEEE Transactions on Industry Applications	en_US
dc.relation.isbasedon	10.1109/TIA.2018.2864170	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Copper loss analysis of a multiwinding high-frequency transformer for a magnetically-coupled residential microgrid	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	55	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	08 Information and Computing 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	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	55	en_US

Abstract:

© 2018 IEEE. Improvements in characteristics of magnetic materials and switching devices have provided the feasibility of replacing the electrical buses with high-frequency magnetic links in small-scale microgrids. This can effectively reduce the number of voltage conversion stages, size, and cost of the microgrid, and isolate the sources and loads. To optimally design the magnetic link, an accurate evaluation of copper loss of the windings considering both the current waveforms and parasitic effects are required. This paper studies the copper loss analysis of a three-winding high-frequency magnetic link for residential microgrid applications. Due to the nonsinusoidal nature of the voltages and currents, the loss analysis is carried out on a harmonic basis taking into account the variations of phase shift, duty ratio, and amplitude of the waveforms. The high-frequency parasitic phenomena including the skin and proximity effects are taken into account. The maximum and minimum copper loss operating conditions of the magnetic link and their dependency on the phase shift angle and the duty ratio of the connected waveforms are studied. A prototype of the microgrid including the magnetic link is developed to validate the theoretical analysis, evaluate the microgrid efficiency, and perform the loss breakdown.

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http://hdl.handle.net/10453/126928