THREE-PHASE VALVE-INDUCTOR MOTOR WITH MINIMUM NOISE, VIBRATIONS AND PULSATIONS OF TORQUE, METHOD AND DEVICE OF CONTROL Russian patent published in 2013 - IPC H02K19/10 H02K29/06 H02P25/08 H02P6/08 H02P6/16 

FIELD: electricity.

SUBSTANCE: in a three-phase valve-inductor motor a magnetic conductor of the motor has such configuration of the rotor and stator that provides for permanent value of derivative inductances of phase windings by the angle of rotor rotation, the sign of which changes periodically with the period of 360 electric degrees, and the period of derivative inductances of phase windings by the angle of rotor rotation is shifted by 120 electric degrees, motor phases are switched by currents of special shape, which does not have breaks of derivatives at currents that are not equal to zero and provides for absence of current in points, where break of derivatives inductances of phases takes place by the angle of rotor rotation, the shape of these currents is provided by the control circuit with the help of a relay-current method of control.

EFFECT: reduced noise, vibrations and increased evenness of rotation torque.

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