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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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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Abstract 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.
AbstractList 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.
Author Zhuo-Yun Nie
Qing-Guo Wang
Min Wu
Yong He
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  surname: Qing-Guo Wang
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  surname: Min Wu
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  surname: Yong He
  fullname: Yong He
  email: heyong08@yahoo.com.cn
  organization: Sch. of Inf. Sci. & Eng., Central South Univ., Changsha, China
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Snippet This paper describes lead/lag compensators tuning method based on gain and phase margin specifications for two kinds of unstable processes. A simple and...
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StartPage 552
SubjectTerms Automatic control
Couplings
Delay effects
Frequency
Nonlinear equations
Process design
Robust stability
Three-term control
Transfer functions
Tuning
Title Lead/lag compensator design for unstable processes based on gain and phase margin specifications
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