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Zbl 1219.93081
Nuño, Emmanuel; Basañez, Luis; Ortega, Romeo
Passivity-based control for bilateral teleoperation: a tutorial. (English)
[J] Automatica 47, No. 3, 485-495 (2011). ISSN 0005-1098

Summary: This tutorial revisits several of the most recent passivity-based controllers for nonlinear bilateral teleoperators with guaranteed stability properties. These schemes, which include scattering-based, damping injection and adaptive controllers, ensure asymptotic stability in multiple situations that range from constant to variable time-delays, with or without scattering transformation and with or without position tracking capabilities. Although all controllers exploit the basic property of passivity of the teleoperators, they have been developed invoking various analysis and design tools, which complicates their comparison and relative performance assessment. The objective of this paper is to present a unified theoretical framework -- based on a general Lyapunov-like function -- that, upon slight modification, allows to analyze the stability of all the schemes.

MSC 2000:: *93C85 Automated control systems
93B35 Sensitivity (robustness) of control systems
34H05 ODE in connection with control problems
93D30 Scalar and vector Lyapunov functions
93C10 Nonlinear control systems

Keywords: telerobotics; robot control; time delay; passivity control

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