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      Switched PD-like controllers for first order unstable systems with time delay

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      Author
      Arslan, Gül Ezgi
      Özbay, Hitay
      Date
      2009
      Source Title
      Proceedings of the 8th IFAC Workshop on Time Delay Systems, TDS 2009
      Print ISSN
      1474-6670
      Publisher
      IFAC
      Volume
      42
      Issue
      14
      Pages
      408 - 413
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      A new method is proposed for the design of PD-like (first order stable) controllers for switched first order unstable systems with time delays. For this purpose, a dwell-time based stability condition of Yan and Özbay (2008) is used for the class of switched time delay systems studied here. The proposed method finds the values of PD-like controller parameters which minimize an upper bound of the dwell time, minimum time needed between the switching instants to preserve stability. The conservatism analysis of this method is done by time domain simulations. The results show that the calculated upper bound for the dwell time is close to the lower bound of the dwell time observed by simulations.
      Keywords
      Dwell time
      PD control
      Stability analysis
      Switched systems
      Time delay
      Controller parameter
      Permalink
      http://hdl.handle.net/11693/28658
      Published Version (Please cite this version)
      https://doi.org/10.3182/20090901-3-RO-4009.00067
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      • Department of Electrical and Electronics Engineering 3524
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