The effect of I-V characteristic and hot-spot by solar cell and interconnection circuit in PV module
PV모듈에서 태양전지와 Interconnect회로의 구성이 I-V특성과 Hot Spot에 미치는 영향
- Lee, Jin-Seob (Konkuk University) ;
- Kang, Gi-Hwan (Korea Institute of Energy Research) ;
- Park, Chi-Hong (Konkuk University) ;
- Yu, Gwon-Jong (Korea Institute of Energy Research) ;
- Ahn, Hyung-Gun (Konkuk University) ;
- Han, Deuk-Young (Konkuk University)
- 이진섭 (건국대학교) ;
- 강기환 (한국에너지기술연구원) ;
- 박지홍 (건국대학교) ;
- 유권종 (한국에너지기술연구원) ;
- 안형근 (건국대학교) ;
- 한득영 (건국대학교)
- Published : 2008.04.12
Abstract
In this paper, we analyze the I-V curve and hot-spot phenomenon caused by solar cells' serial and parallel connected circuit. The mis-match loss of parallel interconnection with low Isc string decrease lower than serially interconnected one and temperature caused by hot-spot does. Also, mis-match loss of parallel interconnection with low Voc string increase more than serially interconnected one. The string having low Voc happened hot-spot phenomenon when open circuit. The bad solar cell in string gives revere bias to good solar cell and make hot-spot phenomenon. If we consider the mis-match loss, when designing PV module and array. the efficiency of PV system might increase.