Zhu_et_al-2016-Progress_in_Photovoltaics-_Research_and_Applications.pdf (1.19 MB)
Changes of solar cell parameters during damp-heat exposure
journal contribution
posted on 2016-08-11, 11:08 authored by Jiang Zhu, M. Koehl, S. Hoffmann, K.A. Berger, Shokufeh Zamini, I.J. Bennett, E. Gerritsen, P. Malbranche, P. Pugliatti, A. Di Stefano, F. Aleo, D. Bertani, F. Paletta, F. Roca, G. Graditi, M. Pellegrino, O. Zubillaga, F.J. Cano Iranzo, A. Pozza, T. Sample, Ralph GottschalgThe electrical ageing of photovoltaic modules during extended damp-heat tests at different stress levels is investigated for three types of crystalline silicon photovoltaic modules with different backsheets, encapsulants and cell types. Deploying different stress levels allows determination of an equivalent stress dose function, which is a first step towards a lifetime prediction of devices. The derived humidity dose is used to characterise the degradation of power as well as that of the solar cell's equivalent circuit parameters calculated from measured current–voltage characteristics. An application of this to the samples demonstrates different modes in the degradation and thus enables better understanding of the module's underlying ageing mechanisms. The analysis of changes in the solar cell equivalent circuit parameters identified the primary contributors to the power degradation and distinguished the potential ageing mechanism for each types of module investigated in this paper.
Funding
This work was supported in part by the European Commission under FP7 grant N° 262533 SOPHIA (INFRA-2010-1.1.22_CP-CSA-Infra) and by the Research Councils UK(RCUK) under project ‘Stability and Performance of Photovoltaics (STAPP)’ (contract no: EP/H040331/1).
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Progress in Photovoltaics: research and applicationsPages
? - ? (13)Citation
ZHU, J. ... et al., 2016. Changes of solar cell parameters during damp-heat exposure. Progress in Photovoltaics: research and applications, 24 (10), pp. 1346-1358.Publisher
© The Authors. Published by John Wiley & Sons Ltd.Version
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/Acceptance date
2016-05-17Publication date
2016-06-22Notes
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution andreproduction in any medium, provided the original work is properly cited.ISSN
1099-159XPublisher version
Language
- en