Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/8236
Title: A nonlinear disturbance observer scheme for discrete time control systems
Authors: Efe, Mehmet Önder
Kasnakoğlu, Coşku
Keywords: Discrete time disturbance observer
robust control
nonlinear Q-filter
S-filter
Rejection
Issue Date: 2021
Publisher: Tubitak Scientific & Technical Research Council Turkey
Abstract: This paper presents a modification to the original disturbance observer based control (DOBC) scheme by redefining the lowpass filter using a nonlinear element. The proposed technique improves the disturbance prediction performance for both small and large magnitude disturbance signals. The contribution of the current work is to unfold the stability and performance conditions under the proposed modification. A comparative set of simulation studies are discussed and it is seen that the proposed modification results in smaller disturbance prediction error energy and smaller tracking error energy when the plant model is discrete time and uncertain.
URI: https://search.trdizin.gov.tr/yayin/detay/514962
https://doi.org/10.3906/elk-2005-206
https://hdl.handle.net/20.500.11851/8236
ISSN: 1300-0632
1303-6203
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
TR Dizin İndeksli Yayınlar / TR Dizin Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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