PV 모듈의 바이패스 다이오드 배치와 그림자 영향에 따른 I-V특성에 관한 연구

The Analysis on I-V Characteristics of PV module depending on Bypass Diode and Sun Shading Effects

  • 발행 : 2007.07.18

초록

Though there are many causes for the maximum output power reduction, the short-term problem is hot-spot effect by sun shading. To prevent this, normally PV maker uses bypass diode. In here, we tried to check the how bypass diodes works by varying sun shading portion on solar. In case of absence of bypass, the sun shading effect increases the series resistance and that promotes the reduction of maximum power and degradation of PV modules. Bypass diode worked normally when 60% of solar cell was shaded and the measured maximum output power was lower than that of theoretical one. The further analysis is needed.

키워드