Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1995-07-11
1998-10-13
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
H02K 709
Patent
active
058216561
ABSTRACT:
A magnetic bearing with reduced control-flux-induced rotor loss includes a rotor 14, and a stator 12 having a plurality of slots S1-S16 around which coils 150-156 of a first Phase A and coils 160-166 of a second Phase B are wound. The winding configuration provides a two pole magnetic field around a rotor/stator gap 15 which is sinusoidal and which can be directed to any location along the gap 15. The configuration minimizes discontinuities or sharp changes in control flux in the gap which thereby reduces rotor losses. Also, the stator tooth gap g1 is minimized to provide smooth flux distribution along the rotor/stator gap 15. More phases and more or less stator slots may be used.
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Colby Roy S.
Piech Zbigniew
DePardo Gerald L.
Stephan Steven L.
United Technologies Corporation
Wallace, Jr. Michael J.
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