Kybernetika 59 no. 2, 294-313, 2023

A family of Lyapunov-based control schemes for maximum power point tracking in buck converters

Jorge Álvarez, Jorge Ruiz and Miguel BernalDOI: 10.14736/kyb-2023-2-0294

Abstract:

This paper presents a novel family of Lyapunov-based controllers for the maximum power point tracking problem in the buck converter case. The solar power generation system here considered is composed by a stand-alone photovoltaic panel connected to a DC/DC buck converter. Lyapunov function candidates depending on the output are considered to develop conditions which, in some cases, can be expressed as linear matrix inequalities; these conditions guarantee that the output goes asymptotically to zero, thus implying that the MPPT is achieved. Simulation and real-time results are presented, which validate the effectiveness of the proposals.

Keywords:

linear matrix inequalities, solar energy, photovoltaic panel, maximum power point tracking, Lyapunov method, convex model

Classification:

93D30, 47N70, 93C10

paper.pdf

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