Noise sensitivity of fast output sampling controllers

Publikationstyp
Conference Paper
Date Issued
1998
Author(s)
Werner, Herbert  
TORE-URI
http://hdl.handle.net/11420/14726
First published in
IEE Conference Publication  
Number in series
455,1
Start Page
252
End Page
256
Citation
UKACC International Conference on Control '98 : 1 - 4 September 1998, venue University of Wales, UK. - London, 1998. - (IEE Conference Publication ; Vol. 455,1). - Seite 252-256
Contribution to Conference
UKACC International Conference on Control, CONTROL 1998  
Publisher DOI
10.1049/cp:19980236
Scopus ID
2-s2.0-0031623823
Publisher
IEE
Fast output sampling controllers have been proposed as an alternative to observer-based state feedback control. However, a typical problem with this type of controller is noise sensitivity due to large feedback gains. In this paper, it is proposed to allow a small deviation from the exact solution to the design problem in order to reduce noise sensitivity. This can be achieved by posing the design problem in the form of an LMI problem. Fast output error dynamics can be included as an additional design objective. A practical design example serves to illustrate the approach. The performance of the controller is compared with observer-based state feedback, and experimental results show that in this case fast output sampling has superior performance.
DDC Class
600: Technik
620: Ingenieurwissenschaften