An efficient MPPT algorithm for partially shaded PV strings
An efficient MPPT algorithm for partially shaded PV strings
Under partial shading conditions, several power peaks (maximum power points - MPPs) are presented on the P-V curve of a photovoltaic system, hindering the effectiveness of typical maximum power point tracking (MPPT) algorithms, due to possible convergence to a local suboptimal MPP. In this paper, a global MPPT (GMPPT) method for PV strings is proposed, which exploits the theoretical MPP characterization to detect the shading conditions and estimate all MPPs on the P-V curve. The calculations performed do not involve unnecessary operating point variations and output power fluctuations. The proposed method is designed for PV strings illuminated at two irradiance levels and only needs the standard voltage and current sensors of the DC/DC converter.
1615-1619
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Papathanassiou, Stavros
49cbcb43-649a-47c2-b294-9bc4d88898b9
September 2015
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Papathanassiou, Stavros
49cbcb43-649a-47c2-b294-9bc4d88898b9
Batzelis, Efstratios and Papathanassiou, Stavros
(2015)
An efficient MPPT algorithm for partially shaded PV strings.
Rinck, S., Helm, P. and Taylor, N.
(eds.)
In Proceedings of the 31st European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2015).
vol. 1,
Curran Associates, Inc.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Under partial shading conditions, several power peaks (maximum power points - MPPs) are presented on the P-V curve of a photovoltaic system, hindering the effectiveness of typical maximum power point tracking (MPPT) algorithms, due to possible convergence to a local suboptimal MPP. In this paper, a global MPPT (GMPPT) method for PV strings is proposed, which exploits the theoretical MPP characterization to detect the shading conditions and estimate all MPPs on the P-V curve. The calculations performed do not involve unnecessary operating point variations and output power fluctuations. The proposed method is designed for PV strings illuminated at two irradiance levels and only needs the standard voltage and current sensors of the DC/DC converter.
Text
Batzelis - An Efficient MPPT Algorithm for Partially Shaded
- Accepted Manuscript
More information
Published date: September 2015
Venue - Dates:
The 31st European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Hamburg, Germany, 2015-09-14 - 2015-09-18
Identifiers
Local EPrints ID: 480634
URI: http://eprints.soton.ac.uk/id/eprint/480634
PURE UUID: 2d1cb569-4bf7-46eb-9c6b-bffca4392b40
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Date deposited: 08 Aug 2023 16:36
Last modified: 17 Mar 2024 04:06
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Contributors
Author:
Efstratios Batzelis
Author:
Stavros Papathanassiou
Editor:
S. Rinck
Editor:
P. Helm
Editor:
N. Taylor
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