Open AccessCharge Dissipation Behavior on the Insulating Polyimide Backsheet in Photovoltaic System
Author(s) -
Dekun Cao,
Jiawei Zhang,
Shaoran Wang,
Gang Dong,
Hongwei Ni,
Guoguang Du
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2087/1/012003
Subject(s) - photovoltaic system , materials science , charge (physics) , polyimide , dielectric , dissipation , optoelectronics , composite material , electrical engineering , physics , layer (electronics) , thermodynamics , engineering , quantum mechanics
Deterioration of electric properties will be generated by the accumulation of surface charge on photovoltaic backsheet in the insulating system of photovoltaic (PV) system. The phenomena of potential induced degradation (PID) could be verified in the insulating Polyimide (PI) backsheet of PV module. In the field of photovoltaic system, PI has been found a special insulating backsheet that work in a mild condition. If the dynamic behaviors of the charge in the insulating backsheet could be understand, unexpected flashover events will be avoided. Thus, the mechanism of surface charge decay of PI should be explored under steady condition. The effect of accumulation of surface charge was explored on PI dielectric under constant ambient temperatures in this paper. The present investigation will contribute greatly toward the early potential induced degradation phenomenon of PV system.