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고효율화 기술이 적용된 심미성 기반 BIPV 태양광 모듈에 관한 연구
조성배(Cho Sungbae),장효식(Chang Hyosik) 한국태양에너지학회 2021 한국태양에너지학회 논문집 Vol.41 No.6
The rapid growth of the building integrated photovoltaics (BIPV) market is attributable to the government’s expansion of BIPV installation support and the policy of raising the REC weight by a factor of 1.5. In addition, as the mandatory, 2025 zero-energy building policy has been extended to the private building sector, interest and demand for BIPV modules and systems are continuously increasing. However, when a general PV module with insufficient aesthetics is installed, it is possible that the installation of BIPV is avoided for aesthetic reasons or installed only at a minimal rate. In other words, to expand the installation and supply of BIPV modules, it is necessary to develop color BIPV modules with aesthetics and high-efficiency technology. In this study, a color BIPV module was developed using polysilazane, which is inexpensive and has excellent transmittance. The electrical output characteristics of the developed color PV module were analyzed, and the output loss was minimized by applying half-cut and gapless processes. In addition, the developed high-efficiency color BIPV module was subjected to an outdoor test, and a commercialization model was established by analyzing the amount of power generated.
Matlab을 이용한 손상된 바이패스 다이오드가 포함된 PV 모듈의 출력 추정
신우균(Shin Woogyun),고석환(Go Seokhwan),주영철(Ju Youngchul),장효식(Chang Hyosik),강기환(Kang Gihwan) 한국태양에너지학회 2016 한국태양에너지학회 논문집 Vol.36 No.5
Installed PV module in field is affected by shading caused by various field environmental factors. Bypass diodes are installed in PV module for preventing a power loss and degradation of PV module by shading. But, Bypass diode is easily damaged by surge voltage and has often initial a defect. This paper propose the electric characteristic variation and the power prediction of PV module with damaged bypass diode. Firstly, the resistance for normal bypass diode and damaged bypass diode of resistance was measured by changing the current. When the current increases, the resistance of normal bypass diode is almost constant but the resistance of damaged bypass diode increases. Next, To estimate power of PV module by damaged bypass diode, the equation for the current is derived using solar cell equivalent circuit. Finally, the derived equation was simulated by using MatLab tools, was verified by comparing experimental data.