A system disturbance response-based auto disturbance rejection controller tuning method

By adjusting the ADRC parameters based on the system disturbance response method, the problem of difficult adjustment of ADRC parameters in thermal processes is solved, the control effect is improved, and it is suitable for the adjustment of active disturbance rejection controllers in thermal processes.

CN116068899BActive Publication Date: 2025-10-10JIANGSU FRONTIER ELECTRIC TECH
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Patent Information

Application Number
CN202310214401.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-08
Publication Date
2025-10-10
Estimated Expiration
2043-03-08

AI Technical Summary

Technical Problem

In thermal processes, the parameters of the active disturbance rejection controller (ADRC) are difficult to adjust when the system is closed-loop and the set value remains unchanged. In particular, when open-loop testing and set value changes are not allowed, traditional PID controllers have difficulty handling strong nonlinearity, multivariable coupling, and multiple disturbance problems.

Method used

By determining the model order of the controller and the controlled object, setting the data vector and the model parameter vector, calculating the feedback gain matrix and the data covariance matrix, and using the system disturbance response to tune the ADRC parameters, including recursive calculation of the model parameter vector estimate until stability, the ADRC parameters are designed.

Benefits of technology

It achieves effective adjustment of ADRC parameters when the system is closed-loop and the set value remains unchanged, improves tracking and anti-disturbance performance, and promotes the application of active disturbance rejection controllers in thermal processes.

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Abstract

The application discloses a kind of based on system disturbance response's self anti-interference controller setting method, comprising the following steps: determining the model order of controller and controlled object;According to model order, data vector and model parameter vector are set;Select the initial value of calculation of feedback gain matrix and data covariance matrix;Recursive calculation feedback gain matrix, data covariance matrix and the estimated value of the model parameter vector, until the estimated value of model parameter vector tends to be stable;According to stable value, calculate the coefficient estimate of controlled object model;Based on each coefficient estimate, design self anti-interference controller parameter.The method of the application can guarantee system closed loop and system set value unchanged, only according to the disturbance response of system setting self anti-interference controller parameter, overcome the problems existing in prior art, the method of the application has good tracking and anti-interference performance, help to further promote the field application of self anti-interference controller in thermal process control.
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