Multi-phase fractional slot windings for electric machines...

Details Multi-phase fractional slot windings for electric machines... Multi-phase fractional slot windings for electric machines...

2008-03-25

2008-03-25

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S201000

Reexamination Certificate

active

11187138

ABSTRACT:
An electric machine comprises a stator core defining a plurality of slots. Multi-phase fractional slot windings are positioned in the slots of the stator core. The multi-phase winding include a first winding set comprised of a first plurality of conductors having a substantially rectangular cross-sectional shape and a second winding set comprised of a second plurality of conductors having a substantially rectangular cross-sectional shape. The multi-phase fractional slot windings include a non-integer slots per pole per phase value.

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patent: 2004/0217723 (2004-11-01), Cai et al.
patent: 2006/0006655 (2006-01-01), Kanazawa et al.
Michael Liwschitz-Garik, Celso Gentilini, “Winding Alternating Current Machines”, Samul Hellen Associate, New York, 1982, 8 pages.

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