Aerial Photoluminescence Imaging of Photovoltaic Modules

Doll B, Wittmann E, Lüer L, Hepp J, Buerhop-Lutz C, Hauch J, Brabec C, Peters IM (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Physica Status Solidi-Rapid Research Letters Wiley-VCH Verlag

DOI: 10.1002/pssr.202300059

Abstract

On-site imaging of modules in photovoltaic (PV) systems requires contact-free techniques with high throughput and low cost for commercial relevance. Photoluminescence imaging satisfies these requirements, but it has so far not been used for aerial imaging. Such a system faces unique engineering and operating challenges, including the need to mount a light source on the drone and identifying module defects from images taken under low- and nonuniform irradiance. Herein, in-house developed photoluminescence aerial imaging (PLAI) setup is presented and it is demonstrated that it can be used to identify defects even with a difference of excitation intensity of up to 50%. The setup consists of a hexacopter aerial drone equipped with an illumination unit and a near-infrared camera. The unit is capable of partially illuminating full-sized modules at night and capturing the photoluminescence response. In the maiden flight, a throughput of 13.6 PV modules per minute is achieved, and a throughput of 300 PV modules per minute is feasible. It is shown that the setup can be used to detect and identify cracks and potential induced degradation with high levels of confidence. These findings are verified by cross correlation and comparing captured photoluminescence images to electroluminescence images taken indoors.

Authors with CRIS profile

Larry Lüer Institute Materials for Electronics and Energy Technology (i-MEET) Jens Hauch
Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

LayTec AG DE Germany (DE) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE)

How to cite

APA:

Doll, B., Wittmann, E., Lüer, L., Hepp, J., Buerhop-Lutz, C., Hauch, J.,... Peters, I.M. (2023). Aerial Photoluminescence Imaging of Photovoltaic Modules. Physica Status Solidi-Rapid Research Letters. https://doi.org/10.1002/pssr.202300059

MLA:

Doll, Bernd, et al. "Aerial Photoluminescence Imaging of Photovoltaic Modules." Physica Status Solidi-Rapid Research Letters (2023).

BibTeX: Download