Why and how to adapt PID testing for bifacial PV modules?

Autor: Jorne Carolus, Michael Daenen, Robbe Breugelmans, Eszter Voroshazi, Arvid van der Heide, Ward De Ceuninck, John A. Tsanakas
Přispěvatelé: CAROLUS, Jorne, BREUGELMANS, Robbe, Tsanakas, John, VAN DER HEIDE, Arvid, Voroshazi, Eszter, DE CEUNINCK, Ward, DAENEN, Michael
Rok vydání: 2020
Předmět:
Hasselt University Daenen
Michael
010302 applied physics
Breugelmans
Robbe
Materials science
IMEC Tsanakas
John
Renewable Energy
Sustainability and the Environment
PID controller
Control engineering
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
Hasselt University
IMEC Keywords: Crystalline silicon solar cells
n-PERT bifacial solar cells
photovoltaic (PV) module reliability
potential-induced degradation (PID)
testing methods
01 natural sciences
7. Clean energy
Electronic
Optical and Magnetic Materials
imec
PV De Ceuninck
Ward
IMEC
Department of Photovoltaics van der Heide
Arvid
0103 physical sciences
Complete List of Authors: Carolus
Jorne
IMEC
Department of Photovoltaics Voroshazi
Eszter
Electrical and Electronic Engineering
0210 nano-technology
IMEC
Zdroj: Article
ISSN: 1099-159X
1062-7995
DOI: 10.1002/pip.3311
Popis: Recent research has shown that bifacial PV modules with a glass/glass packaging are prone to different PID mechanisms occurring simultaneously on the front and the rear side of the solar cell. With this in mind, researchers investigating the impact of PID on each side of the bifacial solar cell separately apply PID stress to one side of bifacial PV modules according to stress method (b) as described in the IEC TS 62804-1, that is, contacting the surface with a conductive electrode. Yet, in this paper, we show that such practice of PID testing might result in an unintended development of an electric field between the environmental chamber and the nonstressed side of the solar cell. Through our experimental study, we reveal that this electric field results in unintended bifacial PID stress of bifacial solar cells, which goes along with misleading interpretations of the evolving PID mechanisms and susceptibility of bifacial PV modules. Next to the methodology concerns, we discuss three possible solutions to prevent such unintended PID mechanisms from occurring.
Databáze: OpenAIRE
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