Parameter adjusting method and device of PID controller and electronic equipment

Abstract

The invention provides a parameter adjusting method and device of a PID controller and electronic equipment. The method comprises the steps of obtaining a current PID control parameter of the PID controller, a current control error of a target control object and a current error fluctuation rate; based on a preset PID evaluation index, determining weights corresponding to the control error and the error fluctuation ratio respectively; determining a target control quantity of the target control object based on the current control error, the current error fluctuation ratio and the weights corresponding to the control error and the error fluctuation ratio; and updating the current PID control parameter based on the target control quantity and the current control error. The problem that a traditional control method is not accurate is solved, intelligent electrification is achieved, the method is different from an existing PID parameter adjusting method, a membership function and a fuzzy rule base do not need to be selected, influences of human experience and other inaccuracy factors are reduced, the whole parameter adjusting process is simpler and more efficient, and timely processing of system overshoot is facilitated.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a parameter adjustment method, device and electronic equipment of a PID controller. Background technique [0002] In recent years, as the application of excavators has become more and more extensive, the demand for performance optimization of its products has also increased. Among them, most of the current excavators use solenoid valves to distribute hydraulic oil. Solenoid valves play a pivotal role in the hydraulic system. They control and adjust the flow, direction and speed of the entire hydraulic oil system to ensure the accuracy and accuracy of the entire excavation action. sex. However, because the solenoid valve of the excavator is driven by the power-on and power-off of the electromagnetic coil, it often fails due to factors such as long use time, unstable voltage, and grounding of the coil line. In the prior art, in view of the common faults of solenoid v...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a parameter adjustment method, device and electronic equipment of a PID controller to overcome the problems of slow dynamic adjustment and low efficiency of PID controller parameters in the prior art

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