QFT design for uncertain nonminimum phase and unstable plants

QFT design for uncertain nonminimum phase and unstable plants

Design of robust controllers for uncertain nonminimum phase and unstable plants with quantitative feedback theory (QFT) is addressed. A counter example for a nonminimum phase plant is given to illustrate the errors in the Horowitz and Sidi method (1978). It is shown that the stability requirement of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wenhua Chen, Ballance, D.J.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Aerospace control
Control systems
Design methodology
Feedback
Frequency domain analysis
Missiles
Robust control
Robust stability
Robustness
Uncertainty
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Beschreibung
Zusammenfassung:Design of robust controllers for uncertain nonminimum phase and unstable plants with quantitative feedback theory (QFT) is addressed. A counter example for a nonminimum phase plant is given to illustrate the errors in the Horowitz and Sidi method (1978). 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 nonminimum phase and/or unstable plants are presented.
ISSN:0743-1619
2378-5861
DOI:10.1109/ACC.1998.703082