HIGHLY DYNAMIC SENSORLESS ASYNCHRONOUS DRIVE WITH DIRECT CONTROL OF TORQUE Russian patent published in 2013 - IPC H02P27/00 H02P27/08 

FIELD: electricity.

SUBSTANCE: device consists of the power unit which includes series-connected rectifier of the mains voltage, ripple filter with voltage sensor, voltage inverter and electric motor which windings are connected through block of phase current sensors to output of voltage inverter; the unit also includes setter of the actual motor angle speed, speed regulator and setter of the motor flux linkage, block monitoring status of the motor, summators, coordinate voltage converter and divider; according to the claimed solution there's also calculator of voltage vector projections, shaper of voltage vector projections and vector modulator.

EFFECT: reducing pulsations of electromagnetic torque due to provision of smooth movement of voltage vector and increase of dynamic characteristics; simplifying design of the claimed device.

4 dwg