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

FIELD: electrical engineering.

SUBSTANCE: invention relates to the electrical equipment. Control device comprises asynchronous motor. Converter realizes vector control with direct and reverse transformations of Park and Clark and has inputs of signals for setting stator current components along the abscissa, along the ordinate and stator current frequency. Besides, rotor rpm transducer and torque setting device. Phase inputs of asynchronous motor are connected to outputs of converter. Asynchronous motor shaft is rigidly connected with rotary speed sensor. Output of torque setting device is connected to inputs of relay amplifier-limiter of absolute sliding, actual forcing link and to first input of first adder. Output of the real boosting link is connected to the second input of the first adder and to the second input of the second adder. First input of the adder is connected to the output of the relay amplifier-limiter of absolute sliding, and the third input is connected to the output of the rotor rpm sensor. Inputs of stator current components setting signals along abscissa, along ordinate and stator converter current frequency are connected to first adder output, actual forcing link output and second adder output, respectively.

EFFECT: technical result consists in increase of speed of electromagnetic moment generation at change of torque setting control signal.

1 cl, 1 dwg