Convertidores Cuk para la Extracción Balanceada de Potencia en Paneles Fotovoltaicos (Cuk Converters for Balanced Power Extraction in Photovoltaic Panels)

Héctor Gerardo Chiacchiarini (, Jonatan Gabriel Ceci (, Alejandro Raúl Oliva (, Pablo Sergio Mandolesi (

1Instituto de Investigaciones en Ingeniería Eléctrica (UNS-CONICET) y DIEC UNS
2Instituto de Investigaciones en Ingeniería Eléctrica (UNS-CONICET) y DIEC UNS
3Instituto de Investigaciones en Ingeniería Eléctrica (UNS-CONICET), DIEC UNS y CIC P.B.A.

This paper appears in: Revista IEEE América Latina

Publication Date: June 2016
Volume: 14,   Issue: 6 
ISSN: 1548-0992

This work presents a scheme of current balance implemented with Cuk converters for photovoltaic (PV) panels, which allows controlling the current that each cell generates and therefore drives each cell to its maximum power point (MPP). Ladder converter architectures offer substantial improvements compared to traditional solutions since each converter only needs to process the power difference between series connected PV devices (module, substring, cells). A simple case, connecting just three PV cells is studied in this work. The strategy for balancing the current produced by each cell is developed. The work describes the circuit topology under analysis, the control strategy for each converter and simulation results that validate the proposal.

Index Terms:
Maximum Power Point Tracking, Photovoltaic Cells, Control, Balance, Optimization   

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