QFT design for uncertain nonminimum phase and unstable plants

Wenhua Chen, Donald J. Ballance

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

13 Citations (Scopus)

Abstract

Design of robust controllers for uncertain nonminimum phase and unstable plants with Quantitative Feedback Theory (QFT) is addressed in this paper. A counterexample for a nonminimum phase plant is given to illustrate the errors in the Horowitz and Sidi method. It is shown that the stability requirement of the new nominal plant is not clearly specified in the existing design method. The stability requirement for the new nominal plant is reformulated and improved design methods for non-minimum phase and/or unstable plants are presented.

Original languageEnglish
Title of host publicationProceedings of the 1998 American Control Conference, ACC 1998
Pages2486-2490
Number of pages5
DOIs
Publication statusPublished - 1998
Event1998 American Control Conference, ACC 1998 - Philadelphia, PA, United States
Duration: 24 Jun 199826 Jun 1998

Publication series

NameProceedings of the American Control Conference
Volume4
ISSN (Print)0743-1619

Conference

Conference1998 American Control Conference, ACC 1998
Country/TerritoryUnited States
CityPhiladelphia, PA
Period24/06/9826/06/98

Keywords

  • Frequency domain
  • Nonminimum phase systems
  • QFT
  • Robust control
  • Robust stability
  • Unstable systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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