DocumentCode
3220444
Title
Lead/lag compensator design for unstable processes based on gain and phase margin specifications
Author
Nie, Zhuo-Yun ; Wang, Qing-Guo ; Wu, Min ; He, Yong
Author_Institution
Sch. of Inf. Sci. & Eng., Central South Univ., Changsha, China
fYear
2010
fDate
9-11 June 2010
Firstpage
552
Lastpage
557
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.
Keywords
compensation; control system synthesis; graph theory; nonlinear control systems; nonlinear equations; stability; gain margin; graphic method; lag compensator; lead compensator; nonlinear coupled equation; phase margin; unstable process; Automatic control; Couplings; Delay effects; Frequency; Nonlinear equations; Process design; Robust stability; Three-term control; Transfer functions; Tuning;
fLanguage
English
Publisher
ieee
Conference_Titel
Control and Automation (ICCA), 2010 8th IEEE International Conference on
Conference_Location
Xiamen
ISSN
1948-3449
Print_ISBN
978-1-4244-5195-1
Electronic_ISBN
1948-3449
Type
conf
DOI
10.1109/ICCA.2010.5524358
Filename
5524358
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