An explicit pv string model based on the lambert w function and simplified mpp expressions for operation under partial shading
An explicit pv string model based on the lambert w function and simplified mpp expressions for operation under partial shading
In this paper, a reformulation of the widely used one-diode model of the photovoltaic (PV) cell is introduced, employing the Lambert W function. This leads to an efficient PV string model, where the terminal voltage is expressed as an explicit function of the current, resulting in significantly reduced calculation times and improved robustness of simulation. The model is experimentally validated and then used for studying the operation of PV strings under partial shading conditions. Various shading patterns are investigated to outline the effect on the string I-V and P-V characteristics. Simplified formulae are then derived to calculate the maximum power points of a PV string operating under any number of irradiance levels, without resorting to detailed modeling and simulation. Both the explicit model and the simplified expressions are intended for application in shading loss and energy yield calculations.
Explicit model, Lambert W function, Maximum power point (MPP), Partial shading, Photovoltaic (PV) string, Simplified formulae
301-312
Batzelis, Efstratios I.
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Routsolias, Iason A.
5217da44-4b07-4ceb-94d1-f8b07941e651
Papathanassiou, Stavros A.
49cbcb43-649a-47c2-b294-9bc4d88898b9
January 2014
Batzelis, Efstratios I.
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Routsolias, Iason A.
5217da44-4b07-4ceb-94d1-f8b07941e651
Papathanassiou, Stavros A.
49cbcb43-649a-47c2-b294-9bc4d88898b9
Batzelis, Efstratios I., Routsolias, Iason A. and Papathanassiou, Stavros A.
(2014)
An explicit pv string model based on the lambert w function and simplified mpp expressions for operation under partial shading.
IEEE Transactions on Sustainable Energy, 5 (1), , [6670101].
(doi:10.1109/TSTE.2013.2282168).
Abstract
In this paper, a reformulation of the widely used one-diode model of the photovoltaic (PV) cell is introduced, employing the Lambert W function. This leads to an efficient PV string model, where the terminal voltage is expressed as an explicit function of the current, resulting in significantly reduced calculation times and improved robustness of simulation. The model is experimentally validated and then used for studying the operation of PV strings under partial shading conditions. Various shading patterns are investigated to outline the effect on the string I-V and P-V characteristics. Simplified formulae are then derived to calculate the maximum power points of a PV string operating under any number of irradiance levels, without resorting to detailed modeling and simulation. Both the explicit model and the simplified expressions are intended for application in shading loss and energy yield calculations.
This record has no associated files available for download.
More information
Published date: January 2014
Additional Information:
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
Keywords:
Explicit model, Lambert W function, Maximum power point (MPP), Partial shading, Photovoltaic (PV) string, Simplified formulae
Identifiers
Local EPrints ID: 449532
URI: http://eprints.soton.ac.uk/id/eprint/449532
ISSN: 1949-3029
PURE UUID: 8bf56c68-8142-4122-9e4f-626180248994
Catalogue record
Date deposited: 04 Jun 2021 16:32
Last modified: 17 Mar 2024 04:06
Export record
Altmetrics
Contributors
Author:
Efstratios I. Batzelis
Author:
Iason A. Routsolias
Author:
Stavros A. Papathanassiou
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics