PROCESS AND CIRCUIT ARRANGEMENT FOR CORRECTING THE FREQUENCY RESPONSE OF A SIGNAL AND/OR AFFECTING INTERFERENCE IN A REGULATING CIRCUIT

摘要

A method and circuit used to correct the response curve of a signal and / or modify the disturbances in a control circuit. For this purpose, the high frequencies in the signal are added together and / or the behavior of the transfer signal is processed and / or the signal is divided into several signals. To implement the method, a compensating circuit delays and / or a transfer circuit and / or a selector circuit are arranged at the output of a transfer member. In order to influence the disturbance in an adjusting circuit having a measurement signal formed by a measuring element and having a reference quantity, the measuring signal of the process variable is converted after a fifth summing point in a signal proportional free of delays. A differential signal is formed in a first summation point with the signal of the reference variable and is transmitted to a regulator to compensate for disturbances. The proportional free signal delays with respect to the measuring element is transformed into a proportional signal free of inertia with respect to the controlled system and all disturbance signals that affect the process variable are converted into an input disturbance signal and are transmitted to a second point of addition. The signal of the reference variable is also transmitted to the second point of addition, a dynamically corrected signal control deviation and an enhancement signal (enhanced signal) behavior transfer disturbances and adjustment are formed by adaptation and intrusion. The improved signal and the signal of the reference quantity is adapted by the addition as correction signal to the second addition point and the output signal thereof is algorithmically optimized, the output signal of the controller is transmitted to a third point 'addition. The signal of the manipulated variable is fed back into the third summing point, so as to optimize and to limit the output signal