PID parameter setting method and device, storage medium and equipment

Abstract

The invention discloses a PID parameter setting method and device, a storage medium and equipment. The method comprises the following steps: calculating the total simulation time of a control system based on an industrial process model; according to the total simulation duration, determining the value range of a filter coefficient, wherein the filter coefficient is a calculation parameter contained in a preset expression, and the preset expression is used for indicating a PID parameter; selecting the value of the filter coefficient from the value range, substituting the value into a preset expression, and calculating to obtain the numerical value of the PID parameter. simulating the control system based on the numerical value of the PID parameter to obtain dynamic response data; substituting the dynamic response data into a preset performance index function, and calculating to obtain a performance evaluation value; selecting a target value from the plurality of values of the filter coefficients; and substituting the target value into the preset expression, and calculating to obtain a setting value of the PID parameter. When the method is used for setting the PID parameters, the control performance of the PID controller can be improved, so that the control requirements of rapidity and stability of a control system are met.

Description

technical field [0001] The present application relates to the field of data processing, and in particular to a PID parameter setting method, device, storage medium and equipment. Background technique [0002] PID control is a comprehensive control of proportional (Proportional), integral (Integral) and derivative (Derivative) based on deviation. It is a simple but effective control algorithm based on the estimation of "now" and "past" information. Because of its simple algorithm, good robust performance, and high reliability, PID control strategy is widely used in the control system of industrial process. The basis of PID control is that proportional control determines the response speed of the system; integral control can eliminate steady-state errors, but may increase system overshoot; differential control can speed up the response speed of large inertia systems and weaken the overshoot tendency. Before the PID controller is put into application, PID parameters (including...

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Problems solved by technology

[0003] At present, the existing technology usually uses the genetic algorithm to tune the PID parameters. However, its tuning effect (that is, the setting value of the PID parameters) is difficult to meet the control requirements of the rapidity and stability of the control system (it can also be a PID controller).

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