Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters
| Autor: | Chris Deline, Carlos Olalla, Dragan Maksimovic, Beomseok Choi, Kate Doubleday |
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| Rok vydání: | 2016 |
| Předmět: |
Renewable Energy
Sustainability and the Environment business.industry 020209 energy 020208 electrical & electronic engineering Photovoltaic system 02 engineering and technology Converters Topology Solar energy Power system simulation Materials Science(all) Power electronics Limit (music) 0202 electrical engineering electronic engineering information engineering Energy transformation General Materials Science business Energy (signal processing) Mathematics |
| Zdroj: | Solar Energy. 135:512-517 |
| ISSN: | 0038-092X |
| Popis: | Large commercial photovoltaic (PV) systems can experience regular and predictable energy loss due to both inter-row shading and reduced diffuse irradiance in tightly spaced arrays. This paper investigates the advantages of replacing bypass diodes with submodule-integrated DC–DC converters (subMICs) to mitigate these losses. Yearly simulations of commercial-scale PV systems were conducted considering a range of row-to-row pitches. In the limit case of array spacing (unity ground coverage), subMICs can confer a 7% increase in annual energy output and peak energy density (kW h/m2). Simulation results are based on efficiency assumptions experimentally confirmed by prototype submodule differential power-processing converters. |
| Databáze: | OpenAIRE |
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