Lead/lag compensator design for unstable processes based on gain and phase margin specifications

This paper describes lead/lag compensators tuning method based on gain and phase margin specifications for two kinds of unstable processes. A simple and effective graphic method is used to solve a set of nonlinear coupled equations. The solutions are determined from the intersections of the two kind...

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Bibliographic Details
Published inIEEE ICCA 2010 pp. 552 - 557
Main Authors Zhuo-Yun Nie, Qing-Guo Wang, Min Wu, Yong He
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2010
Subjects
Automatic control
Couplings
Delay effects
Frequency
Nonlinear equations
Process design
Robust stability
Three-term control
Transfer functions
Tuning
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Summary:This paper describes lead/lag compensators tuning method based on gain and phase margin specifications for two kinds of unstable processes. A simple and effective graphic method is used to solve a set of nonlinear coupled equations. The solutions are determined from the intersections of the two kinds of curves constructed from gain and phase margin specifications. The results are applied to the tuning of the lead/lag compensator. Examples are provided for illustration.
ISBN:9781424451951
1424451957
ISSN:1948-3449
1948-3457
DOI:10.1109/ICCA.2010.5524358