Publication
A simple nonlinear observer for state and unknown input estimation: DC motor applications
Journal Article (2020)
Journal
IEEE Transactions on Circuits and Systems II: Express Briefs
Pages
710-714
Volume
67
Number
4
Doc link
https://doi.org/10.1109/TCSII.2019.2920609
File
Authors
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Martinez-Garcia, Citlaly
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Astorga-Zaragoza, Carlos
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Puig Cayuela, Vicenç
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Reyes-Reyes, Juan
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Lopez Estrada, Francisco Ronay
Abstract
The contribution of this brief is to propose a method based on a simple nonlinear observer with an easy-to-compute observer gain, in order to achieve both state and unknown input (UI) estimation. Since the structure of the original model of the process does not require any transformation, the nonlinear dynamics are preserved. This allows an accurate estimation of the states and the UIs or faults. Two particular cases involving dc motors are illustrated in simulation and an experiment using a permanent magnet dc motor is presented.
Categories
control theory.
Scientific reference
C. Martinez-Garcia, C. Astorga-Zaragoza, V. Puig, J. Reyes-Reyes and F.R. Lopez. A simple nonlinear observer for state and unknown input estimation: DC motor applications. IEEE Transactions on Circuits and Systems II: Express Briefs, 67(4): 710-714, 2020.
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