Disturbance Rejection and Control System Design Based on an Improved Equivalent-Input-Disturbance Approach

This article presents an improved equivalent-input-disturbance (EID) approach to actively rejecting exogenous disturbances for a plant. A control system based on the approach includes a new EID estimator constructed by embedding integrals to the conventional EID estimator. These integrals enable the...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2023-03, Vol.70 (3), p.2876-2886
Main Authors: Mei, Qicheng, She, Jinhua, Wang, Feng, Nakanishi, Yosuke
Format: Article
Language:English
Subjects:
Control systems
Control systems design
Disturbance rejection
Equivalence
equivalent-input-disturbance (EID)
Indexes
Integrals
Noise measurement
Observers
Sensitivity
Stability criteria
Steady-state
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This article presents an improved equivalent-input-disturbance (EID) approach to actively rejecting exogenous disturbances for a plant. A control system based on the approach includes a new EID estimator constructed by embedding integrals to the conventional EID estimator. These integrals enable the estimator to improve the disturbance-estimation precision without amplifying the effect of measurement noise. Stability conditions of the control system are obtained using separation theorem. The system design ensures that the control system satisfies the stability conditions. Experiments of a rotational control system demonstrate the validity of the approach.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2022.3169843