Electrical modeling of bifacial PV modules
Electrical modeling of bifacial PV modules
Although the bifacial photovoltaic (PV) module is now a mature technology, there still exists a gap in the literature on its electrical modeling and equivalent circuit representation. Most published studies have mainly focused on the photocurrent while overlooking other crucial parameters for the electrical response of the module. Even so, the photocurrent of the bifacial module is simplistically treated as the sum of individual currents of the front and rear sides, a hypothesis challenged in this study. Notably, our research has uncovered a discrepancy that can exceed 15%, and we address this issue by introducing a correction factor in this paper. This paper introduces a comprehensive electrical model that effectively integrates bifacial PV modules’ front and rear sides into a single−circuit representation. This novel model adopts the single−diode equivalent circuit, formulating each of the five parameters as a function of the individual side’s parameters. Indoor and outdoor measurements validate the accuracy improvement brought by this model, which can benefit energy yield studies and our theoretical understanding of bifacial PV systems.
Sahu, Preeti Kumari
5a94ff85-21a4-4c4a-abf9-8812e67d64d0
Batzelis, Efstratios I.
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Chakraborty, Chandan
6701fe34-862b-432b-bbe1-041a66e68938
Roy, J.N.
ef7b8b22-b1d1-481d-8238-9dd864fba3af
4 December 2024
Sahu, Preeti Kumari
5a94ff85-21a4-4c4a-abf9-8812e67d64d0
Batzelis, Efstratios I.
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Chakraborty, Chandan
6701fe34-862b-432b-bbe1-041a66e68938
Roy, J.N.
ef7b8b22-b1d1-481d-8238-9dd864fba3af
Sahu, Preeti Kumari, Batzelis, Efstratios I., Chakraborty, Chandan and Roy, J.N.
(2024)
Electrical modeling of bifacial PV modules.
IEEE Journal of Photovoltaics.
Abstract
Although the bifacial photovoltaic (PV) module is now a mature technology, there still exists a gap in the literature on its electrical modeling and equivalent circuit representation. Most published studies have mainly focused on the photocurrent while overlooking other crucial parameters for the electrical response of the module. Even so, the photocurrent of the bifacial module is simplistically treated as the sum of individual currents of the front and rear sides, a hypothesis challenged in this study. Notably, our research has uncovered a discrepancy that can exceed 15%, and we address this issue by introducing a correction factor in this paper. This paper introduces a comprehensive electrical model that effectively integrates bifacial PV modules’ front and rear sides into a single−circuit representation. This novel model adopts the single−diode equivalent circuit, formulating each of the five parameters as a function of the individual side’s parameters. Indoor and outdoor measurements validate the accuracy improvement brought by this model, which can benefit energy yield studies and our theoretical understanding of bifacial PV systems.
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Accepted/In Press date: 8 November 2024
Published date: 4 December 2024
Identifiers
Local EPrints ID: 496357
URI: http://eprints.soton.ac.uk/id/eprint/496357
ISSN: 2156-3381
PURE UUID: 09692c30-239b-40bc-8518-a886a49c2e21
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Date deposited: 12 Dec 2024 17:45
Last modified: 29 May 2025 04:06
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Contributors
Author:
Preeti Kumari Sahu
Author:
Efstratios I. Batzelis
Author:
Chandan Chakraborty
Author:
J.N. Roy
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