Research on Potential Induced Degradation (PID) of PV Modules in Different Typical Climate Regions

[摘要] Potential Induced Degradation (PID) is one of the most important factors effecting the performances of Photovoltaic (PV) modules and PV systems in recent years. In this paper the PID phenomena of the PV power plant in different typical climate regions were studied and some experimental PID simulations were carried out in order to find out the factors effecting the performance by PID. The results show that the typical PID phenomena are easy to occur in cells close to the border of the PV module. PID phenomena can appear in PV power plants under different climate conditions, but the effecting degrees on module performance are different depending on temperature, humidity and other parameters. We also find the maximum power would recover in some degree after positive-bias voltage duration.

[发布机构] Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing; 100190, China^1;China General Certification Center, Beijing; 100013, China^2

[效力级别] 机械制造

[关键词] Climate condition;Module performance;On potentials;Photovoltaic modules;Positive bias voltages;Potential induced degradations;PV Power plants;Typical climates