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Further results on "Reduced order disturbance observer for discrete-time linear systems"
Reduced order Disturbance OBservers (DOB) have been proposed in Kim et al (2010) and Kim and Rew (2013) for continuous-time and discrete-time linear systems, respectively. The existence condition of the promising algorithm has been established but is not straightforward to check. This work further improves the reduced order DOB design by formulating it as a functional observer design problem. By carefully designing the state functional matrix, a generic DOB is resulted with an easily-checked necessary and sufficient existence condition and an easily-adjusted convergence rate. It is also shown that both the reduced
order DOB in Kim and Rew (2013) and the full order DOB in Chang (2006) are special cases of this new DOB.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
AutomaticaCitation
SU, J. and CHEN, W-H., 2018. Further results on "Reduced order disturbance observer for discrete-time linear systems". Automatica, 93, pp.550-553.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2017-12-19Publication date
2018Notes
This paper was accepted for publication in the journal Automatica and the definitive published version is available at https://doi.org/10.1016/j.automatica.2018.04.032.ISSN
0005-1098Publisher version
Language
- en