ASYNCHRONOUS MOTOR CONTROL METHOD Russian patent published in 2020 - IPC H02P21/00 H02P27/04 

FIELD: electrical equipment.

SUBSTANCE: invention relates to the electrical equipment. Disclosed is a method of controlling an asynchronous motor (AM) with a squirrel-cage rotor, powered from a power converter, which realizes vector control of the AM with direct and inverse Park and Clark transformations. Rotor has inputs of stator current components control signals along abscissa, along ordinate and stator current frequency signal. Torque setting signal and a signal proportional to the rotor rpm are generated, and based on the torque setting signal, an absolute slippage signal is generated, which ensures minimum losses in copper. Correcting signal is generated, which sets stator current component along ordinate axis, which, summing up with torque setting signal, sets stator current component along abscissa; said signal is summed with absolute slip signal and signal proportional to rotor rpm to set stator current frequency.

EFFECT: technical result is minimization of transit time of transient electromagnetic processes in asynchronous motor at minimum loss in copper.

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