Reducing the hardware requirements in FPGAbased controllers: a photovoltaic application

C.A. Ramos-Paja; E. Mamarelis; G. Petrone; G. Spagnuolo; M. Vitelli; R. Giral

doi:10.17533/udea.redin.17162

Authors

C.A. Ramos-Paja National University of Colombia https://orcid.org/0000-0003-2231-4177
E. Mamarelis University of Salerno
G. Petrone University of Salerno
G. Spagnuolo University of Salerno https://orcid.org/0000-0002-4817-1138
M. Vitelli Second University of Naples
R. Giral University of Rovira i Virgili https://orcid.org/0000-0001-6582-6741

DOI:

https://doi.org/10.17533/udea.redin.17162

Keywords:

photovoltaic, grid connection, FPGA implementation, resources requirement

Abstract

Single-phase grid connected photovoltaic systems suffer from voltage oscillations due to the difference between the average power produced by the source and the pulsating instantaneous power injected into the grid. Suchvoltage variations have a detrimental effect on the power production. This paper proposes a solution for mitigating the oscillations at the source terminals minimizing the hardware resources required to implement the technique in a FPGA device, allowing its coexistence with additional control algorithms in a single device. The effectiveness of the approach was experimentally validated, and its FPGA resources requirement was contrasted with commercial IP cores based solutions.

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