Active Disturbance Rejection Control for Discrete Systems

Document Type

Conference Paper

Publication Date

11-2020

Publication Title

PROCEEDINGS OF 2020 IEEE 9TH DATA DRIVEN CONTROL AND LEARNING SYSTEMS CONFERENCE (DDCLS'20)

Abstract

A form of active disturbance rejection control (ADRC) is proposed for a kind of discrete systems in this paper. The state space form of the system is firstly formulated. Then the extended state observers (ESO) with and without model information are presented to estimate states and total disturbance. The control law is formulated to reject disturbance and to track a given trajectory. As a case study, the semiconductor manufacturing process is used to validate the proposed solution. Comparing with the exponentially weighted moving average controller, simulations indicate that the proposed discrete ADRC is effective in cancelling disturbance and in tracking the desired target.

Comments

This work is supported by National Natural Science Foundation (NNSF) of China under Grant 61873113, Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX18_2253) and China Scholarship Council.

DOI

10.1109/DDCLS49620.2020.9275175

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