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  4. Synthesis of LPV controllers with reduced implementation complexity
 
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Synthesis of LPV controllers with reduced implementation complexity

Publikationstyp
Conference Paper
Date Issued
2014
Sprache
English
Author(s)
Hoffmann, Christian  
Hashemi, Seyed Mahdi 
Abbas, Hossam El-Din Mahmoud Seddik  
Werner, Herbert  
Institut
Regelungstechnik E-14  
TORE-URI
http://hdl.handle.net/11420/14646
Journal
Proceedings of the American Control Conference  
Start Page
3766
End Page
3771
Article Number
6858716
Citation
American Control Conference (2014)
Publisher DOI
10.1109/ACC.2014.6858716
Scopus ID
2-s2.0-84905674515
The application of linear parameter-varying (LPV) control techniques proves difficult when the number of scheduling parameters is large. This paper reviews and extends practical methods for linear fractional transformation (LFT) based LPV controller design, in order to achieve reduced implementation complexity via affine parameter dependence. Methods to approximate a given affine LPV model are reinterpreted in terms of a nonlinear mapping from rational to reduced affine parameter dependence and a procedure is proposed, that does not rely on experimental data and is therefore also applicable to unstable systems. It is further proposed, to evaluate multiplier conditions by taking into account rational dependence of affine parameters on LFT parameters via a secondary application of the full-block S-procedure. Numerical examples illustrate that the proposed methods can result in reduced conservatism, implementation and synthesis complexity.
Subjects
Linear parameter-varying systems
Reduced order modeling
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