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Analysis of dither in relay feedback systems
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0001-9940-5929
KTH, Superseded Departments, Mathematics.
2002 (English)In: PROCEEDINGS OF THE 41ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, IEEE , 2002, 4425-4430 p.Conference paper, Published paper (Refereed)
Abstract [en]

Dither signals provide an effective way of compensating for nonlinearities in control systems. The seminal, works by Zames and Shneydor and more recently by Mossaheb present rigorous tools for systematic design of dithered systems. Their results rely however on a Lipschitz assumption on the nonlinearity and thus do not cover important applications with discontinuities. This paper presents initial results on how to analyze and design dither in nonsmooth systems. In particular, it is shown that a dithered relay feedback system can be approximated by a smoothed system obtained through an averaging approach. Guidelines are given for tuning the amplitude and the period time of the dither signal, in order to stabilize the nonsmooth system.

Place, publisher, year, edition, pages
IEEE , 2002. 4425-4430 p.
Series
IEEE CONFERENCE ON DECISION AND CONTROL - PROCEEDINGS, ISSN 0191-2216
Keyword [en]
Friction
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-81277DOI: 10.1109/CDC.2002.1185069ISI: 000181352300794ISBN: 0-7803-7516-5 (print)OAI: oai:DiVA.org:kth-81277DiVA: diva2:497270
Conference
41st IEEE Conference on Decision and Control, LAS VEGAS, NV, DEC 10-13, 2002
Note
QC 20120228Available from: 2012-02-28 Created: 2012-02-10 Last updated: 2012-02-28Bibliographically approved

Open Access in DiVA

dither_cdc02(625 kB)216 downloads
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Johansson, Karl Henrik

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CiteExportLink to record
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  • apa
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  • de-DE
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