Analog quantity control loop controller parameter setting method and device

Abstract

The invention provides an analog quantity control loop controller parameter setting method and device and is applied to terminal equipment. The method comprises the steps of obtaining a disturbance response curve graph array when a control loop model carries out operation and simulation on a control object model according to a target control requirement within a preset parameter range corresponding to a preset controller parameter combination; carrying out data analysis on each obtained disturbance response curve graph, thereby obtaining an index data array of quality indexes of the control loop model; drawing three-dimensional contour maps corresponding to each time domain index and each integral index according to the index data array of the quality indexes; and carrying out image superposition intersection processing on each three-dimensional contour map, thereby obtaining a public target parameter region among the three-dimensional contour maps, wherein the public target parameterregion satisfies the target control requirement and is used for representing global optimum controller parameter distribution condition. According to the method, region delineation can be carried outon global optimum controller parameters of the control loop, and the corresponding global optimum controller parameter distribution condition is obtained.

Description

technical field [0001] The invention relates to the technical field of analog quantity feedback control systems, in particular to a parameter setting method and device for an analog quantity control loop controller. Background technique [0002] With the continuous development of science and technology, based on PID (proportion-integral-derivative, Proportion-Integral-Derivative) controller or PI (proportion-integral, Proportion-Integral) controller or PD (proportion-derivative, Proportion-Derivative) control The analog feedback control loop composed of controller, state observer, phase compensator, various filters, feedforward controller, cascade loop controller, and 2×2 multi-loop controller is usually used in industrial production, automation control, etc. field to form a corresponding feedback control system. For the feedback control system, how to ensure that each feedback control loop in the feedback control system has strong stability, good rapidity, strong reliabili...

AI Technical Summary

Problems solved by technology

Due to the large interference or noise of the non-control channel on site, the setting accuracy of this controller parameter setting method is not high, and the application limitations are relatively large. What is given is a controller parameter point, and the obtained optimal value cannot be guaranteed. The optimal controller parameter point is really the global optimal parameter matching the analog feedback control loop, which cannot guarantee the stability, reliability, rapidity and robustness of the analog feedback control loop, and the safety risk in the field debugging test bigger

Images