NDLI: On the augmentation of Luenberger Observer-based state feedback design for better robustness and disturbance rejection

Content Provider	IEEE Xplore Digital Library
Author	Wenchao Xue Zhiqiang Gao
Copyright Year	2015
Description	Author affiliation: Key Lab. of Syst. & Control, Beijing, China (Wenchao Xue) \|\| Dept. of Electr. & Comput. Eng., Cleveland State Univ., Cleveland, OH, USA (Zhiqiang Gao)
Abstract	This paper addresses the fundamental problem of improving the Luenberger Observer (LO)-based feedback control so that it can deal with effectively a wide range of uncertainties, both internal and external. It is shown that the effect of such uncertainties can be estimated and cancelled in real time, all based on the yet untapped source of information: the estimation error in the existing LO. The result is quite significant in that, by augmenting the LO without changing its original structure or parameters, the LO-based design can be improved in terms of robustness and disturbance rejection. In other words, there is hidden information of uncertainties in the LO tracking error and it can be extracted, often with a mere integrator, to great benefits, as shown in both mathematical analysis and simulation studies.
Starting Page	3937
Ending Page	3943
File Size	390666
Page Count	7
File Format	PDF
e-ISBN	9781479986842
DOI	10.1109/ACC.2015.7171944
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Uncertainty State feedback Estimation error Closed loop systems Robustness Observers Mathematical model
Content Type	Text
Resource Type	Article

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