METHOD FOR CONTROL OF AC CONVERTER-FIELD MOTOR TORQUE Russian patent published in 2012 - IPC H02P6/04 H02P6/12 H02P27/08 

FIELD: electricity.

SUBSTANCE: torque control method is as follows: during control of the AC converter-field motor torque by way of pulse-width modulation methods with generation a control signal from the error signal sum (calculated as the difference between the measured and the required values of the phase current winding) and the sawtooth sweep signal (dropping to zero and equal to the estimated value of the error signal at the key elements commutation moment) the error signal value is not in excess of the pulsing component of the phase winding current resultant from pulse-width modulation.

EFFECT: dead zone reduction and increased accuracy of the AC converter-field motor torque control within a wide range of rotation frequencies.

5 cl, 5 dwg