NDLI: Experimental evaluation of an LPV-gain-scheduled observer for rejecting multisine disturbances with time-varying frequencies

Content Provider	IEEE Xplore Digital Library
Author	Heins, W. Ballesteros, P. Bohn, C.
Copyright Year	2012
Description	Author affiliation: Inst. of Electr. Inf. Technol., Clausthal Univ. of Technol., Clausthal-Zellerfeld, Germany (Heins, W.; Ballesteros, P.; Bohn, C.)
Abstract	A linear time-varying (LTV) discrete-time controller for the rejection of harmonic disturbances with time-varying frequencies on linear time-invariant (LTI) systems is proposed and validated in real-time experiments. The controller is an observer-based state feedback controller with a time-varying observer system matrix and a time-invariant state feedback gain. For the controller design, the combination of plant and disturbance is modeled as a polytopic linear parameter-varying (pLPV) system and linear matrix inequalities (LMIs) derived from quadratic stability theory and LMIs for an upper bound on the $H_{2}$ performance are used. The design guarantees closed-loop stability even for arbitrarily fast changes of the varying parameters. The controller is tested on an active noise control headset for a disturbance signal consisting of four harmonics.
Sponsorship	IEEE Control Syst. Soc.
Starting Page	768
Ending Page	774
File Size	300908
Page Count	7
File Format	PDF
ISBN	9781457710957
ISSN	07431619
e-ISBN	9781457710964
e-ISBN	9781467321020
DOI	10.1109/ACC.2012.6315059
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-27
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Observers Stability analysis Time frequency analysis Frequency control Interpolation Asymptotic stability State feedback
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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