LIMITING TORQUE NOISE BY SIMULTANEOUS TUNING OF SPEED PI CONTROLLER PARAMETERS AND FEEDBACK FILTER TIME CONSTANT

摘要

Control circuit (3') comprising a controller (9'), a controlled system (2') and a filter (10') for smoothing a return signal (4"), wherein the controller (9') acts on the controlled system (2') by means of a control signal (6') and the return signal (4") acts on the controller (9'), characterized in that the controller (9') and the filter (10') are simultaneously adjustable, wherein the adjustment is made on the basis of a method which comprises the following steps: measuring or estimating an output signal (1'), wherein the measurement or estimate transfers the output signal (1') into the return signal (4"), determining the power density spectrum of the return signal (4"), limiting a control signal (6') of the controller (9') in such a manner that the power of the control signal (6') does not exceed a predefined limiting value.