Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-07-26
1999-04-27
LaBalle, Clayton
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 29596, H02K 15085, H02K 312
Patent
active
058982515
ABSTRACT:
In a double-layer concentric-wound armature winding for a dynamoelectric machine, the number of slots per phase per pole is set at q. The armature winding comprising a winding which corresponds to one pole and which includes a plurality of coils having different coil pitches from one another. The coils include at least one coil having the number of turns different from those of the other coils. The number q is set at or above 3. The number of coils in one winding is set at (q-n) where n=1, 2, . . . and q-2. The coils are distributed in the slots so that a double-layer, concentric-wound winding resulting in a sinusoidal distribution of magnetomotive force is formed. In another arrangement, the number of pole windings per phase is half of the number of poles in a double-layer concentric-wound winding or a lap winding. The number of coils in one of the pole windings is set at (2x(q-n)).
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Kawamura Tsutomu
Mochizuki Motoyasu
Kabushiki Kaisha Toshiba
LaBalle Clayton
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