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Title: PV systems linked to the grid: parameter identification with a heuristic procedure
Authors: Fialho, L.
Melicio, Rui
Mendes, V.M.F.
Editors: Sustainable Energy Technologies and Assessments (ELSEVIER)
Keywords: PV system
Power electronics
Parameter identification
Shading effect
Simulation and experimental results
Issue Date: 1-Jun-2015
Publisher: Sustainable Energy Technologies and Assessments (ELSEVIER)
Abstract: This paper focuses on a PV system linked to the electric grid by power electronic converters, identification of the five parameters modeling for photovoltaic systems and the assessment of the shading effect. Normally, the technical information for photovoltaic panels is too restricted to identify the five parameters. An undemanding heuristic method is used to find the five parameters for photovoltaic systems, requiring only the open circuit, maximum power, and short circuit data. The I–V and the P–V curves for a monocrystalline, polycrystalline and amorphous photovoltaic systems are computed from the parameters identification and validated by comparison with experimental ones. Also, the I–V and the P–V curves under the effect of partial shading are obtained from those parameters. The modeling for the converters emulates the association of a DC–DC boost with a two-level power inverter in order to follow the performance of a testing commercial inverter employed on an experimental system.
Type: article
Appears in Collections:CI-ER - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
FIS - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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