Please use this identifier to cite or link to this item:
https://doi.org/10.21256/zhaw-25716
Publication type: | Article in scientific journal |
Type of review: | Peer review (publication) |
Title: | Power conditioner efficiencies and annual performance analyses with partially shaded photovoltaic generators using indoor measurements and shading simulations |
Authors: | Allenspach, Cyril Armand Carigiet, Fabian Bänziger, Arturo Schneider, Andrin Baumgartner, Franz |
et. al: | No |
DOI: | 10.1002/solr.202200596 10.21256/zhaw-25716 |
Published in: | Solar RRL |
Issue Date: | 2022 |
Publisher / Ed. Institution: | Wiley |
ISSN: | 2367-198X |
Language: | English |
Subjects: | Module-level power electronics; Indoor laboratory testing; Power optimizer; High-resolution shading simulation; Photovoltaic system performance; PV inverter efficiency |
Subject (DDC): | 621.3: Electrical, communications, control engineering |
Abstract: | Partially shaded rooftop photovoltaic systems operate with non-uniform conditions within the photovoltaic array, which lead to power losses. Module-level power electronics can potentially improve the performance of such photovoltaic systems. However, the potential performance increase compared to standard string inverter systems depends on the site-specific details of the installation. To investigate this, power optimizer and string inverter efficiency measurements were conducted in the ZHAW indoor laboratory. With these results, simulations were performed for a module-level power electronics system, for which power optimizers were used at every module, and a standard string inverter photvoltaic system. As a performance comparison, the P370 power optimizer and 3500H inverter was used for the module-level power electronics system and partial shading by a chimney was considered. For the standard string inverter system, the string inverter SUN2000- 3.68KTL-L1, without the use of module-level power electronics was chosen. The results of the annual simulations showed a gain of the module-level power electronics system between 0.9 % and 1.4 % (14-modules) or -0.2 % and 0.8 % (13-modules), depending on the position of the chimney. Furthermore, the shading adaption efficiency, a method of quantifying the annual performance for shading situations by applying weightings to a few indoor measured performance values of power electronic components, is described. |
URI: | https://digitalcollection.zhaw.ch/handle/11475/25716 |
Fulltext version: | Published version |
License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
Departement: | School of Engineering |
Organisational Unit: | Institute of Energy Systems and Fluid Engineering (IEFE) |
Published as part of the ZHAW project: | EFFPVSHADE – Effizienzanalyse von dezentraler Photovoltaik Leistungselektronik bei Teilbeschattung |
Appears in collections: | Publikationen School of Engineering |
Files in This Item:
File | Description | Size | Format | |
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2022_Allenspach-etal_Power-conditioner-efficiencies-partially-shaded-photovoltaics.pdf | 4.48 MB | Adobe PDF | ![]() View/Open |
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