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2015 | OriginalPaper | Buchkapitel

A Robust Control Scheme Against Some Parametric Uncertainties for the NXT Ballbot

verfasst von : R. A. García-García, M. Arias-Montiel

Erschienen in: Multibody Mechatronic Systems

Verlag: Springer International Publishing

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Abstract

In this work a Linear Matrix Inequalities (LMIs) approach to provide robustness to an optimal control scheme for the NXT ballbot is proposed. The mathematical model of the system is obtained taking into account the actuators dynamics and in this overall model uncertain parameters appear. These uncertainties can affect (in a negative form) the control algorithm performance, so we define a polytopic model considering some parameters vary within some bounded sets. This polytopic model is used to synthesize a robust control scheme against parameters variation using LMIs. Numerical results show a significant improvement in the closed loop system in comparison with a classic Linear Quadratic Regulator (LQR) control. Finally, some experimental results are presented to show the viability of implementing the control strategy proposed.

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Metadaten
Titel
A Robust Control Scheme Against Some Parametric Uncertainties for the NXT Ballbot
verfasst von
R. A. García-García
M. Arias-Montiel
Copyright-Jahr
2015
DOI
https://doi.org/10.1007/978-3-319-09858-6_24

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