Publicación: PBC approach applied on a DC-DC step-down converter for providing service to CPLs
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Institute of Electrical and Electronics Engineers Inc.
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4th IEEE Colombian Conference on Automatic Control: Automatic Control as Key Support of Industrial Productivity, CCAC 2019 - Proceedings
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This paper addresses the problem of output voltage regulation for step-down converters (buck converters) for constant power load (CPL) applications. The model of the CPL corresponds to a hyperbolic constraint that introduces nonlinearities on the dynamical model. To regulate the voltage profile in this nonlinear load a passivity-based control (PBC) approach is proposed. The main advantage of the proposed control approach corresponds to the parametric independence of the controller, even if the CPL and the asymptotic stability in the sense of Lyapunov are unknown. Numerical results validate the proposed control approach in comparison to conventional PID controller. © 2019 IEEE.
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This work was supported in part by the Administrative Department of Science, Technology, and Innovation of Colombia (COLCIENCIAS) through the National Scholarship Program under Grant 727-2015, by the Universidad Tecnológica de Bolívar under Project C2018P020, by the National Council of Scientific and Technical Research (CONICET) and by Universidad Nacional de San Luis (UNSL) under Project PROICO 142318 and PICT-2017-0794.
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9781538669624