METHOD FOR THYRISTOR VOLTAGE REGULATOR CONTROL IN A DEVICE OF ASYNCHRONOUS MOTOR START CONTROL

摘要

A method for thyristor voltage regulator control in a device of asynchronous motor start control comprises increase of output voltage of balanced thyristor regulator with the preset intensivity from a fixed value to nominal value by the phase regulation of thyristor activation angles. Reference and control signals are identified and compared. If control signal value riches reference signal value, thyristor activation angle is decreased according to a linear low. As reference and control signals are set parameters proportionate to values of the effective voltage, correspondingly, in the input and output of the thyristor regulator.