Design of Q-filters for disturbance observers via BMI approach

Jung Su Kim, Juhoon Back, Gyunghoon Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The type-k disturbance observer, also known as high order disturbance observer, is a robust output feedback controller which can reject polynomial-in-time disturbances exactly and at the same time unmodeled disturbances approximately. To ensure the robust stability of the closed-loop system, the key component of the controller called Q-filter should be designed appropriately. In this paper, we formulate the design problem in terms of a set of bilinear matrix inequalities so that the coefficients of Q-filters are chosen simultaneously. The solution from the proposed method can be less conservative compared to the recursive design procedure developed recently.

Original languageEnglish
Title of host publicationInternational Conference on Control, Automation and Systems
PublisherIEEE Computer Society
Pages1197-1200
Number of pages4
ISBN (Electronic)9788993215069
DOIs
StatePublished - 16 Dec 2014
Event2014 14th International Conference on Control, Automation and Systems, ICCAS 2014 - Gyeonggi-do, Korea, Republic of
Duration: 22 Oct 201425 Oct 2014

Publication series

NameInternational Conference on Control, Automation and Systems
ISSN (Print)1598-7833

Conference

Conference2014 14th International Conference on Control, Automation and Systems, ICCAS 2014
Country/TerritoryKorea, Republic of
CityGyeonggi-do
Period22/10/1425/10/14

Keywords

  • Disturbance observer
  • Q-filter design
  • robust control
  • robust stability

Fingerprint

Dive into the research topics of 'Design of Q-filters for disturbance observers via BMI approach'. Together they form a unique fingerprint.

Cite this