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Design and Validation of a Synchronous Reluctance Motor with Single Tooth Windings

Lookup NU author(s): Chris Spargo, Professor Barrie Mecrow, Dr James Widmer, Dr Christopher Morton, Dr Nick BakerORCiD


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his paper presents for the first time the analysis and experimental validation of a six-slot four-pole synchronous reluctance motor with nonoverlapping fractional slot-concentrated windings. The machine exhibits high torque density and efficiency due to its high fill factor coils with very short end windings, facilitated by a segmented stator and bobbin winding of the coils. These advantages are coupled with its inherent robustness and low cost. The topology is presented as a logical step forward in advancing synchronous reluctance machines that have been universally wound with a sinusoidally distributed winding. The paper presents the motor design, performance evaluation through finite element studies and validation of the electromagnetic model, and thermal specification through empirical testing. It is shown that high performance synchronous reluctance motors can be constructed with single tooth wound coils, but considerations must be given regarding torque quality and the d-q axis inductances.

Publication metadata

Author(s): Spargo CM, Mecrow BC, Widmer JD, Morton C, Baker N

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Energy Conversion

Year: 2015

Volume: 30

Issue: 2

Pages: 795-805

Print publication date: 01/06/2015

Online publication date: 12/01/2015

Acceptance date: 16/12/2014

ISSN (print): 0885-8969

ISSN (electronic): 1558-0059

Publisher: IEEE


DOI: 10.1109/TEC.2014.2384476


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