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Title: Performance of Mismatched PV Systems With Submodule Integrated Converters

Abstract

Mismatch power losses in photovoltaic (PV) systems can be reduced by the use of distributed power electronics at the module or submodule level. This paper presents an experimentally validated numerical model that can be used to predict power production with distributed maximum power point tracking (DMPPT) down to the cell level. The model allows the investigations of different DMPPT architectures, as well as the impact of conversion efficiencies and power constraints. Results are presented for annual simulations of three representative partial shading scenarios and two scenarios where mismatches are due to aging over a period of 25 years. It is shown that DMPPT solutions that are based on submodule integrated converters offer 6.9-11.1% improvements in annual energy yield relative to a baseline centralized MPPT scenario.

Authors:
; ;
Publication Date:
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1211397
DOE Contract Number:  
DE-AR0000216
Resource Type:
Journal Article
Journal Name:
IEEE Journal of Photovoltaics
Additional Journal Information:
Journal Volume: 4; Journal Issue: 1; Journal ID: ISSN 2156-3381
Country of Publication:
United States
Language:
English

Citation Formats

Olalla, C, Deline, C, and Maksimovic, D. Performance of Mismatched PV Systems With Submodule Integrated Converters. United States: N. p., 2014. Web. doi:10.1109/JPHOTOV.2013.2281878.
Olalla, C, Deline, C, & Maksimovic, D. Performance of Mismatched PV Systems With Submodule Integrated Converters. United States. doi:10.1109/JPHOTOV.2013.2281878.
Olalla, C, Deline, C, and Maksimovic, D. Wed . "Performance of Mismatched PV Systems With Submodule Integrated Converters". United States. doi:10.1109/JPHOTOV.2013.2281878.
@article{osti_1211397,
title = {Performance of Mismatched PV Systems With Submodule Integrated Converters},
author = {Olalla, C and Deline, C and Maksimovic, D},
abstractNote = {Mismatch power losses in photovoltaic (PV) systems can be reduced by the use of distributed power electronics at the module or submodule level. This paper presents an experimentally validated numerical model that can be used to predict power production with distributed maximum power point tracking (DMPPT) down to the cell level. The model allows the investigations of different DMPPT architectures, as well as the impact of conversion efficiencies and power constraints. Results are presented for annual simulations of three representative partial shading scenarios and two scenarios where mismatches are due to aging over a period of 25 years. It is shown that DMPPT solutions that are based on submodule integrated converters offer 6.9-11.1% improvements in annual energy yield relative to a baseline centralized MPPT scenario.},
doi = {10.1109/JPHOTOV.2013.2281878},
journal = {IEEE Journal of Photovoltaics},
issn = {2156-3381},
number = 1,
volume = 4,
place = {United States},
year = {2014},
month = {1}
}