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Annual energy losses due to partial shading in PV modules with cut wafer-based Si solar cells
ID Brecl, Kristijan (Avtor), ID Bokalič, Matevž (Avtor), ID Topič, Marko (Avtor)

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Izvleček
To further improve the efficiency of the wafer-based silicon photovoltaic (PV) module, producers are introducing new module designs with cut-cells. Since smaller solar cells might be affected by partial shading even more and earlier than full-size cells, the energy performance simulations of partially shaded modules are crucial. A detailed shading analyses of partially shaded modules with different cut cell designs are presented not only on a single case scenario but on annual energy yield simulations using Spice, where a shading scenario over the whole module by the use of a new 3D shading horizon profile of selected shading objects is calculated. The annual simulations reveal that regardless the module design almost all cells in the module are confronted by reverse bias, which can deteriorate the module performance significantly. Simulation results with three different shading objects on five different module topologies at five locations showed that the best cut-cell module design depends strongly by the micro location and shading objects; however, in general the string of solar cells connected in series should be aligned with the shading shape around noontime as much as possible. A comprehensive annual energy performance evaluation of partially shaded cut-cell modules revealed; that with a correct cell layout of cut-cells in a PV module, the shading losses can be reduced by 30e50% if comparing to the standard PV module design.

Jezik:Angleški jezik
Ključne besede:PV module, shading, cut cells, energy balance models, losses
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FE - Fakulteta za elektrotehniko
Leto izida:2021
Status objave pri reviji:Objavljeno
Verzija članka:Založnikova različica članka
Datum objave:22.12.2020
Št. strani:Str. 195-203
Številčenje:Vol. 168
PID:20.500.12556/RUL-124062 Povezava se odpre v novem oknu
UDK:621.383.51
ISSN pri članku:0960-1481
DOI:10.1016/j.renene.2020.12.059 Povezava se odpre v novem oknu
COBISS.SI-ID:44146435 Povezava se odpre v novem oknu
Datum objave v RUL:23.12.2020
Število ogledov:582
Število prenosov:235
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Renewable energy
Skrajšan naslov:Renew. energy
Založnik:Pergamon
ISSN:0960-1481
COBISS.SI-ID:8704261 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:23.12.2020

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:PV moduli, senčenje, rezane celice, energijski modeli, izgube

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P2-0197
Naslov:Fotovoltaika in elektronika

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:857793
Naslov:High-performance low-cost modules with excellent environmental profiles for a competitive EU PV manufacturing industry
Akronim:HighLite

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