CONTROL OF THE POWER SUPPLY ELEMENTS OF THE DRIVE WITH VARIABLE SPEED DEPENDING ON THE RECTIFIED VOLTAGES Russian patent published in 2023 - IPC H02P27/08 H02M5/458 B60L9/28 

FIELD: electric engineering.

SUBSTANCE: group of inventions relates to electric motor control. The method for determining the rectified voltages of the variable speed drive power supply elements consists in repeating the following P iterations, including the activation of at least one element of one or more phases and the deactivation of other drive power supply elements, receiving at least one drive output voltage at the terminals of the electrical device for at least one phase. At the end of P iterations, the values of the rectified voltage are determined from the measured output voltages of the drive at the output of the corresponding stages of the rectification of the power supply elements of the drive and the said determined values of the rectified voltage are stored. A processor, a drive control device, and a variable speed drive are also claimed.

EFFECT: increasing the accuracy of determining the output voltage applied to the motor, which increases the efficiency of control.

14 cl, 3 dwg