SET Proceedings 2978-4387 Caravel Press 10.65582/set.2017.127 2017.127 Effect of Atmospheric Parameters on the Thermal Runaway in Concentrator III–V Multi-junction Solar Cells LvHui ChengChunfu chengchunfu@126.com OuYiwen DongShijie SuYuehong RiffatSaffa Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan 430068, P. R. China School of Science, Hubei University of Technology, Wuhan 430068, P. R. China Department of Architecture and Built Environment, University of Nottingham, Nottingham NG7 2RD, UK 13072017 16 9791220022033 1 5 13 July 2017 © 2017 Copyright WSSET 2017

In this paper a thermal runaway model with temperature dependence of the diode behaviour in parallel connection CPV modules is initially developed. Based on this model, the influence of atmospheric parameters such as air mass (AM) and aerosol optical depth (AOD) on the thermal runaway effect in CPV modules has been analyzed. It is shown that under AM1.5D irradiance the concentration factor should be limited to 838 to prevent the steep temperature increases above 20 K when the number of solar cells connected in parallel is 2. The maximum number of parallel connected solar cells depending on the concentration ratio under different atmospheric parameters is also determined to avoid the strong temperature increases and thermal runaways in the CPV module.

 Multi-junction Solar Cells CPV module thermal runaway parallel connection 17 to 20 July 2017 16th International Conference on Sustainable Energy Technologies SET2017 16 Bologna, Italy