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Search Results: 1 - 2 of 2 matches for " Thunderstroke "
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Simulation Suggests Origin of Potential Induced Degradation of Solar Cell  [PDF]
Masato Ohmukai, Akira Tsuyoshi
Journal of Power and Energy Engineering (JPEE) , 2017, DOI: 10.4236/jpee.2017.56004
Abstract: Solar cells are well known as devices for sustainable electric energy generation. Nowadays the potential induced degradation has been brought up as an obstacle problem for practical use. In order to determine the cause of this kind of degradation, numerical simulation by a finite difference time domain method has been performed for computational electromagnetics in the case that the thunder attacks the solar modules. The results show that the dielectric breakdown in the glass covered over the solar cells triggered by the thunderstroke is critical. So it is helpful to protect the dielectric breakdown in the glass from the thunderstroke.
Effect of Parameters on Potential Induced Degradation of Solar Cell  [PDF]
Masato Ohmukai, Akira Tsuyoshi
Journal of Power and Energy Engineering (JPEE) , 2017, DOI: 10.4236/jpee.2017.56003
Abstract: Solar cells are widely used to generate electric energy even at homes. It surely has a great advantage of sustainability. However, the potential induced degradation has been found to be an obstacle problem for practical use. It was reported that the main cause is the dielectric breakdown in the glass covered over the solar cells triggered by the thunderstroke. In this paper, the effects of the parameters such as the position of thunderstroke, the wave form, the peak value and the front duration of the lightning current, were examined by means of numerical calculation. For the lightning current, a step-like waveform and an impulse waveform were examined. The effect of the induced voltage was found to be independent of the waveform. The peak value, the front duration of the lightning current greatly affects the induced voltage.
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