KR860001365A - Process control unit - Google Patents

Abstract

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Description

Process control unit

As this is a public information case, the full text was not included.

2 is a schematic configuration diagram of a process control device according to the present invention.

4 is a detailed configuration diagram of the process control apparatus shown in FIG.

5 is another specific configuration diagram of the process control apparatus shown in FIG.

Claims (14)

And a feed forward control means for outputting the disturbance compensation signal which detects the disturbance and compensates the disturbance based on the feed forward control method. A processor control apparatus comprising: a gain scheduling means for correcting a gain of the feedback control signal according to a magnitude of the disturbance change, and an operation of adding and synthesizing the disturbance compensation signal to a feedback control signal gain-corrected by the gain scheduling means; And a feedforward control model gain adapting means adapted to correct the gain of the feedforward control method by comparing a signal with the disturbance compensation signal and outputting a correction signal that matches both. Process control device. 2. The feedforward control model gain according to claim 1, wherein the feedforward control model gain adaptation means modifies the feedforward control model gain so that the feedback control signal of the feedback control means becomes zero at the time of disturbance change. 2. The method according to claim 1, wherein the gain scheduling means multiplies the gain correction coefficient calculated by relating the coupling coefficient set based on the magnitude of the disturbance change and the process amount to the feedback control signal to correct the gain of the feedback control signal. . 2. The method of claim 1, wherein the feedforward control model gain adapting means periodically modifies the gain of the feedforward control model. 2. The method according to claim 1, wherein the feedforward control model gain adapting means determines the gain size of the feedback control signal or the operation signal and corrects the gain of the feedforward control model when it is at or above a predetermined level. The method according to claim 2, wherein the gain scheduling means is a gain correction coefficient. It is composed of a gain scheduling unit having a. The method of claim 5, wherein the feedforward control model gain adaptation means Functions such as a feedforward model acquisition government. 8. The feed forward model according to claim 7, wherein the correction coefficient (K) in the acquisition part is one. 8. The feed forward model of claim 7, wherein the correction coefficient (K) in the acquisition part is 0 < K < 2. The memory according to claim 1, wherein the feedforward control model is operated by storing a FF gain gain correction signal from the feedforward control model adaptation means, a correction signal and a disturbance signal in the memory, and output a disturbance compensation signal. Consisting of means for computing. The FF model gain adapting apparatus according to claim 10, wherein the FF model gain adapting apparatus detects the continuity of the state in which the control is corrected in the normal state and the difference between the disturbance compensation signal and the manipulated variable is equal to or greater than a predetermined value, thereby obtaining the FF model gain into the memory. Controlling the supply of a correction signal and controlling the addition synthesis of the disturbance compensation signal of the feedback control signal. 12. The dynamic characteristic compensation circuit according to claim 11, wherein the dynamic characteristic compensation circuit inputs the disturbance compensation path to compensate the dynamic characteristics and adds the dynamic characteristic compensation signal to the operation signal. The disturbance compensation signal correcting system according to claim 5, wherein the feedforward control model gain adapting means corrects the standard value control unit, the disturbance compensation signal and the operation signal MV output to the process to be the same, and the disturbance signal correcting system. It consists of a correction effect compensation system that compensates for the effect of the correction on the disturbance compensation signal that has been corrected, and these feeders are feedback controllers in the feedback / feedforward control based on the correction signal from the sample controller. Performed automatic correction and compensation of disturbance compensation signal to the minimum. 15. The system of claim 13, wherein the disturbance compensation signal correction system comprises a first multiplier that multiplies the correction signal from the sample value control unit with the disturbance compensation signal in the feedforward control model, while the correction influence compensation system is configured to control the feedforward control. A second multiplier for multiplying the disturbance compensation signal and the correction signal from the sample value control part in the model, and a compensator for subtracting the influence compensation signal from the second multiplier to the correction disturbance compensation path from the first multiplier . ※ Note: The disclosure is based on the initial application.