Surface polarization effect and recovery process of crystalline-Si photovoltaic modules
| Autor: | Alfonso Damiano, Malgorzata Gawronska, Simone Casula, Carla Sanna |
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| Rok vydání: | 2016 |
| Předmět: |
Imagination
Engineering Chemical substance Power station business.industry Ground media_common.quotation_subject 010401 analytical chemistry Photovoltaic system food and beverages 020206 networking & telecommunications 02 engineering and technology 01 natural sciences 0104 chemical sciences Monocrystalline silicon 0202 electrical engineering electronic engineering information engineering Electronic engineering Optoelectronics Degradation (geology) business Polarization (electrochemistry) media_common |
| Zdroj: | 2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA). |
| DOI: | 10.1109/icrera.2016.7884361 |
| Popis: | Surface polarization effect was identified as an important factor that impairs the energy performance of photovoltaic crystalline-Si modules. Such an effect has been experimentally analysed by monitoring a monocrystalline Si-modules based power plant. It has been revealed that the surface polarization effect can reduce the photovoltaic power plant production up to 50 % respect to the expected value. Polarization effects in monocristalline Si-modules are generally caused by an incorrect grounding of the photovoltaic power plant on the DC side. In the present paper such degradation process has been investigated both on the whole plant and on modules. By analysing the I-V characteristics of selected modules, it has been revealed that the degradation rate depends on their position in the string. Finally, different recovery approaches have been experimentally tested on sampled modules and on the whole photovoltaic power plant. The results of the characterization carried out during recovery process are presented. |
| Databáze: | OpenAIRE |
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