Design and analysis of star-delta hybrid windings for high-voltage induction motors

Lei, Y; Zhao, Z; Wang, S; Dorrell, DG; Xu, W

Design and analysis of star-delta hybrid windings for high-voltage induction motors

Lei, Y Zhao, Z Wang, S Dorrell, DG

Xu, W

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Industrial Electronics, 2011, 58 (9), pp. 3758 - 3767
Issue Date:: 2011-09-01

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Field	Value	Language
dc.contributor.author	Lei, Y	en_US
dc.contributor.author	Zhao, Z	en_US
dc.contributor.author	Wang, S	en_US
dc.contributor.author	Dorrell, DG https://orcid.org/0000-0001-8060-3386	en_US
dc.contributor.author	Xu, W https://orcid.org/0000-0003-0816-6016	en_US
dc.date.issued	2011-09-01	en_US
dc.identifier.citation	IEEE Transactions on Industrial Electronics, 2011, 58 (9), pp. 3758 - 3767	en_US
dc.identifier.issn	0278-0046	en_US
dc.identifier.uri	http://hdl.handle.net/10453/18381
dc.description.abstract	In this paper, a Y-Δ hybrid connection for a high-voltage induction motor is described. Low winding harmonic content is achieved by careful consideration of the interaction between the Y- and Δ -connected three-phase winding sets so that the magnetomotive force (MMF) in the air gap is close to sinusoid. Essentially, the two winding sets operate in a six-phase mode. This paper goes on to verify that the fundamental distribution coefficient for the stator MMF is enhanced compared to a standard three-phase winding set. The design method for converting a conventional double-layer lap winding in a high-voltage induction motor into a Y-Δ hybrid lap winding is described using standard winding theory as often applied to small- and medium-sized motors. The main parameters addressed when designing the winding are the conductor wire gauge, coil turns, and parallel winding branches in the Y and Δ connections. A winding design scheme for a 1250-kW 6-kV induction motor is put forward and experimentally validated; the results show that the efficiency can be raised effectively without increasing the cost. © 2010 IEEE.	en_US
dc.relation.ispartof	IEEE Transactions on Industrial Electronics	en_US
dc.relation.isbasedon	10.1109/TIE.2010.2054058	en_US
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	Design and analysis of star-delta hybrid windings for high-voltage induction motors	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	58	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
dc.location.activity	Valencia, Spain
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/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	58	en_US

Abstract:

In this paper, a Y-Δ hybrid connection for a high-voltage induction motor is described. Low winding harmonic content is achieved by careful consideration of the interaction between the Y- and Δ -connected three-phase winding sets so that the magnetomotive force (MMF) in the air gap is close to sinusoid. Essentially, the two winding sets operate in a six-phase mode. This paper goes on to verify that the fundamental distribution coefficient for the stator MMF is enhanced compared to a standard three-phase winding set. The design method for converting a conventional double-layer lap winding in a high-voltage induction motor into a Y-Δ hybrid lap winding is described using standard winding theory as often applied to small- and medium-sized motors. The main parameters addressed when designing the winding are the conductor wire gauge, coil turns, and parallel winding branches in the Y and Δ connections. A winding design scheme for a 1250-kW 6-kV induction motor is put forward and experimentally validated; the results show that the efficiency can be raised effectively without increasing the cost. © 2010 IEEE.

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http://hdl.handle.net/10453/18381