단결정 실리콘 Photovoltaic(PV) Module의 수명 예측

This paper presents a lifetime estimation of Photovoltaic(PV) module. There are many failure modes and factors which caused failure of PV module. We reveal these using Failure Analysis, and express these by using Failure Tree Analysis(FTA). The dominant failure mode of the PV module is decreasing open-circuit voltage and short-circuit current that was made by corrosion at interconnector/metallization. Humidity and temperature are selected as stress factors by using of two-stage Quality Function Deployment(QFD). Because PV module are using for both indoor and outdoor, humidity and temperature are inevitable effects on its reliability. We estimate lifetime to use damp-heat test on PV module. And then we estimate the shape parameter, life-stress relationship and B₁? life by using ALTA programs.