METHOD AND DEVICE FOR ELECTRIC MOTOR START-UP Russian patent published in 2014 - IPC H02P6/20 H02P1/46 H02P27/08 

FIELD: electricity.

SUBSTANCE: invention is attributed to the field of electric engineering and may be used for electric motor start-up. Start-up method for the electric motor (100) with a rotor includes the following stages: rotor rotation in the first direction by means of the first torque, at that maximum value of the first torque does not exceed maximum value of torque counteracting the rotor rotation so that the rotor is braked in the first idle position; rotation of the rotor in the first idle position in the second direction opposite the first one until the rotor is braked in the present second idle position and start-up of rotation for the rotor in the second idle position in the first direction of rotation.

EFFECT: improving reliability of the electric motor when mo data are available about the initial rotor position.

17 cl, 5 dwg