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

Qicheng Mei, Jinhua She, Feng Wang, Yosuke Nakanishi

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents an improved equivalent-input-disturbance (EID) approach of actively rejecting exogenous disturbances for a plant. A control system based on the approach includes a new EID estimator constructed by embedding extra integrals to the conventional EID estimator. These integrals enable the estimator to improve the disturbance-estimation precision without amplifying the effect of the 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.

Original languageEnglish
JournalIEEE Transactions on Industrial Electronics
DOIs
Publication statusAccepted/In press - 2022

Keywords

  • Control systems
  • disturbance rejection
  • equivalent input disturbance (EID)
  • Indexes
  • integrals
  • Noise measurement
  • Observers
  • Sensitivity
  • Stability criteria
  • Steady-state

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Disturbance Rejection and Control System Design Based on an Improved Equivalent-Input-Disturbance Approach'. Together they form a unique fingerprint.

Cite this