16.8 Potential Induced Degradation (PID)
The power loss of PV modules can occur due to the occurrence of Potential Induced Degradation (PID), consisting of a small current leakage [1]. This phenomenon occurs when there is a high potential difference between the grounded frame of photovoltaic panels with a potential of 0 V and the extreme panels (extreme cells) in the string with different polarity. If the PID phenomenon occurs systematically, irreversible damage to the cell junctions can occur. On the other hand, when the phenomenon occurs irregularly, reversible cell polarity may occur and cause no permanent damage [2].
2. W. Luo, Y. S. Khoo, P. Hacke, V. Naumann, D. Lausch, S. P. Harvey, J. P. Singh, J. Chai, Y. Wang, A. G. Aberle, S. Ramakrishna: Potential-induced degradation in photovoltaic modules: A critical review, Energy & Environmental Science 2017, Vol. 10, Iss. 1, pp. 43-68, dostęp:14.12.2020
Bibliography
1. S. Pingel, O. Frank, M. Winkler, S. Daryan, T. Geipel, H. Hoehne, J. Berghold: Potential induced degradation of solar cells and panels (pp. 2817-2822), 35th IEEE Photovoltaic Specialists Conference, 20-25 June 2010, Honolulu, HI, USA, dostęp:14.12.20202. W. Luo, Y. S. Khoo, P. Hacke, V. Naumann, D. Lausch, S. P. Harvey, J. P. Singh, J. Chai, Y. Wang, A. G. Aberle, S. Ramakrishna: Potential-induced degradation in photovoltaic modules: A critical review, Energy & Environmental Science 2017, Vol. 10, Iss. 1, pp. 43-68, dostęp:14.12.2020