FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, namely to electric machines, and can find application in the creation of ac electronic motors for adjustable electric drives. Ac electronic motor contains a rotor with permanent magnets, a stator with a winding arranged in its slots and made according to the wye-delta connection scheme. Winding connected to a delta is configured with a shortened winding pitch, and the shortening value is one third of the diametral pitch of the winding.
EFFECT: reduction of tooth pulsations of the electromagnetic moment, eddy currents in the array of permanent magnets and reduction of their heating caused by winding and tooth harmonics of the magnetomotive force of the stator winding.
1 cl, 7 dwg
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