Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2007.07a
- /
- Pages.222-223
- /
- 2007
The Analysis on I-V Characteristics of PV module depending on Bypass Diode and Sun Shading Effects
PV 모듈의 바이패스 다이오드 배치와 그림자 영향에 따른 I-V특성에 관한 연구
- Kim, Seung-Tae (Konkuk University) ;
-
Kang, Gi-Hwan
(Korea Institute of Energy Research(KIER))
;
- Park, Chi-Hong (Konkuk University) ;
- Kim, Kyung-Soo (Korea Institute of Energy Research(KIER)) ;
-
Ahn, Hyung-Keun
(Konkuk University)
;
-
Han, Deuk-Young
(Konkuk University)
;
-
Yu, Gwon-Jong
(Korea Institute of Energy Research(KIER))
- 김승태 (건국대학교 전기공학과) ;
-
강기환
(한국에너지기술연구원)
;
- 박지홍 (건국대학교 전기공학과) ;
- 김경수 (한국에너지기술연구원) ;
-
안형근
(건국대학교 전기공학과)
;
-
한득영
(건국대학교 전기공학과)
;
-
유권종
(한국에너지기술연구원)
- Published : 2007.07.18
Abstract
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.
Keywords