Method and device for driving a rotating field machine by controlling the field orientation

摘要

The regulation system receives a required torque current component and flux current component, with a corresp. revs regulating circuit (DR) and field regulation circuit (FR) and detection of the flux amplitude and angle for flux regulation via a flux regulation circuit (FR). The field axis orientation error is compensated by setting the slip frequency in dependence on the difference between the employed transformation angle and the detected flux angle. The current regulation circuit (SR) or a voltage regulation circuit is used to provide the required machine voltages or currents respectively, in dependence on the corrected torque and flux current components and the transformation angle.