Influence of environmental conditions on UV fluorescence imaging in the field

authored by

Arnaud Morlier, Michael Siebert, Iris Kunze, Susanne Blankemeyer, Marc Köntges

Abstract

The potential of ultraviolet (UV) fluorescence as a field technique for photovoltaic module defect detection has been demonstrated recently. In the field during daytime, environmental parameters are not controllable. We assess in this work the influence of environmental temperature on the quality and reproducibility of UV fluorescence measurements. The kind of lamination material and its aging history very much influences the fluorescence intensity. During the measurement, the temperature of the module influences the fluorescence emission. A module at nominal operating cell temperature range (45°C to 50°C) can show from 3% up to 30% less fluorescence intensity compared to a module at a temperature of 25°C. The temperature dependence of the excitation UV light source itself has also some effect on the imaging quality but the influence of the camera temperature is negligible.

Organisation(s)

Solar Energy Section

External Organisation(s)

Institute for Solar Energy Research (ISFH)

Type

Paper

Pages

1309-1312

No. of pages

4

Publication date

26.11.2018

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Energy Engineering and Power Technology, Renewable Energy, Sustainability and the Environment, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.1109/PVSC.2018.8547483 (Access: Closed)