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A comparison of multirate robust track-following control synthesis techniques for dual-stage and multi-sensing servo systems in hard disk drives
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.).
2006 (English)In: Proc Am Control Conf, 2006, p. 1290-1296Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents the design and analysis of multirate robust track-following controllers for a dual-stage servo system with a MEMS microactuator (MA) and an instrumented suspension. Two major categories of controller design methodologies are considered. The first is based on sequential single-input single-output (SISO) design techniques, and includes the sensitivity decoupling (SD) method and the PQ method. High rate inner loop damping control is implemented followed by a low rate outer loop controller. The second category is based on multirate, multi-input multi-output (MIMO) design techniques, including mixed H2/H∞, mixed H 2/μ, and robust H2 synthesis. In this case, a set of controllers are designed all at once by explicitly considering plant uncertainty and hence robust stability. Comparisons are made between these design techniques in terms of nominal H2 performance, robust stability, and robust performance. The advantages and disadvantages of each of these methods are discussed, as well as the guidelines for practical implementation.

Place, publisher, year, edition, pages
2006. p. 1290-1296
Series
Proceedings of the American Control Conference, ISSN 0743-1619 ; 2006
Keywords [en]
Loop damping control, MEMS microactuator (MA), Sensitivity decoupling (SD), Sequential single-input single-output (SISO), Control equipment, MEMS, Microactuators, Sensitivity analysis, Servomechanisms, Suspensions (components), Product design
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-155357ISI: 000241666302046Scopus ID: 2-s2.0-34047220663ISBN: 1424402107 (print)ISBN: 9781424402106 (print)OAI: oai:DiVA.org:kth-155357DiVA, id: diva2:762686
Conference
2006 American Control Conference, 14-16 June 2006, Minneapolis, MN, USA
Note

QC 20141112

Available from: 2014-11-12 Created: 2014-11-05 Last updated: 2014-11-12Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf