http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김승태,박지홍,강기환,화이티루,안형근,유권종,한득영,Kim, Seung-Tae,Park, Chi-Hong,Kang, Gi-Hwan,Lawrence, Waithiru C.K.,Ahn, Hyung-Keun,Yu, Gwon-Jong,Han, Deuk-Young 한국전기전자재료학회 2008 전기전자재료학회논문지 Vol.21 No.1
In this paper, an I-V characteristics of bypass diode has been studied by counting the shading effect in photovoltaic module. The shadow induces hot spot phenomenon in PV module due to the increase of resistance in the current path. Two different types of PV module with and without bypass diode were fabricated to expect maximum output power with an increasing shading rate of 5 % on the solar cell. Temperature distribution is also detected by shading the whole solar cell for the outdoor test. From the result, the bypass diode works properly over 60 % of shading per cell with constant output power. Maximum power generation in case of solar cell being totally shaded with bypass diode decreases 41.3 % compared with the one under STC(Standard Test Condition). On the other hand, the maximum output power of the module without bypass diode gradually decreases by showing hot spot phenomenon with the increase of shading ratio on the cell and finally indicates 95.5 % of power loss compared with the output under STC. Finally the module temperature measured increases around $10^{\circ}C$ higher than that under STC due to hot-spots which come from the condition without bypass diode. It has been therefore one of the main reasons for degrading the PV module and shortening the durability of the PV system.
자연광 스펙트럼 분포에 의한 단결정 PV 모듈의 전기적 특성
홍종경,강기환,박지홍,정태희,류세환,화이티루 로렌스,안형근,한득영,Hong, Jong-Kyuong,Kang, Gi-Hwan,Park, Chi-Hong,Jung, Tae-Hee,Ryu, Se-Hwan,L, Waithiru,Ahn, Hyung-Keun,Han, Deuk-Young 한국전기전자재료학회 2009 전기전자재료학회논문지 Vol.22 No.3
Recently, characteristic research by the changes in the spectrum, one of the factors that influence analysis of maximum output power of PV module, has been studied. In this paper, a one-day intensity of solar irradiation, change of spectrums with time and electrical output for spectrums are analyzed. As a result, blue-rich wavelength compared with red-rich wavelength has large variation of solar irradiance with time, so we recognized that change of solar irradiance is dominated by variation of blue~rich wavelength. Also in same intensity of solar irradiance, electrical output in blue-rich wavelength was 3-8 % higher than one in red-rich wavelength.