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강기환,고석환,정영석 한국태양광발전학회 2015 한국태양광발전학회지 Vol.1 No.1
태양광발전시스템 기술은 태양광모듈-접속함-PCS가 포함되는 BOS 기술로부터 시작되어 독립형 또는 계통연계형으로 전력을 생산하게 하는 설치, 운전, 운영기술이 모두 포함된다. 태양광 밸류체인 기술마다 급속한 산업 성장으로 단가경쟁력이 치열한 요즘 태양광발전시스템 기술은 설치단가, 발전단가를 낮출 수 있는 최후의 마지막 수단이라고 생각하고 시스템 설치단가, 운영단가를 낮추기 위해 많은 연구를 수행 중에 있다. 그러나, 태양광발전시스템 기술이 정상적으로 완성되지 못하면 경제적 손실은 물론, 내구성능과 수명, 민원에 의한 분쟁, 사고 등 다양한 고통을 겪게 된다. 본고에서는 이러한 태양광발전시스템에 대한 다양한 고장 사례와 민원 분쟁 유형을 진단하고, 그에 대한 해결방안을 제시하고자 한다.
PV모듈의 발전성능시험을 위한 Solar Simulator의 측정불확도 요인 분석
강기환,김경수,박지홍,유권종,안형근,한득영,Kang, Gi-Hwan,Kim, Kyung-Soo,Park, Chi-Hong,Yu, Gwon-Jong,Ahn, Hyung-Keun,Han, Deuk-Young 한국태양에너지학회 2007 한국태양에너지학회 논문집 Vol.27 No.1
In this paper, we analyzed the elements of measurement uncertainty on electrical performance test which are the most important things in photovoltaic module performance test. Repeating the performance test by 6 men, the measurement uncertainty could be calculated. In this experiment, Solar Simulator (A-Class pulse type) used for domestic certificate test of PV module is Pasan IIIb (Balval, Switzerland). The possible elements of the measurement uncertain that could effect electrical performance test of PV module are reference cell, spectrum correction, error from measurement repetition, test condition, stability and uniformity of artificial solar simulator. To find the measurement uncertainty, 6 men repeated the test by 10 times. And the results were that numerical average value was 124.44W and measurement uncertainty was $124.44W{\pm}0.36W$ with 95% confidence level for 125W PV module(KD-5125).
환경변화 요인에 따른 결정질 실리콘 태양전지모듈의 최대출력 특성 분석
강기환,김경수,박지홍,유권종,안형근,한득영 한국태양에너지학회 2007 한국태양에너지학회 논문집 Vol.27 No.3
In this study, we analyzed the maximum output power characteristics of crystalline silicon photovoltaic module by change of environmental effects. The electrical, optical and thermal property of PV modules were investigated during outdoor test period about 70 days. There was a fluctuation in maximum output power by change in transmittance caused by environment effects like rain, snow and dust. The effects of external environmental change were analyzed using climate data. Also local thermal temperature variation and transmittance imbalance on surface of PV module which might lead degradation of constituent material were detected using infrared camera. The further analysis is describe in the following paper.
구성 재료와 방사조도 특성에 따른 태양전지모듈의 최대출력 분석
강기환,김경수,박지홍,유권종,안형근,한득영 한국태양에너지학회 2007 한국태양에너지학회 논문집 Vol.27 No.3
In this study, we analyze the maximum power generation of photovoltaic(PV) module depending on constituent materials and incidence angle dependence of light. To verify characteristics of constituent materials, we made photovoltaic modules with 4 kinds of solar cells and textured glass according to fabrication method. To find the degree of the maximum power generation dependence on intensity of light, Solar Simulator is applied by changing angle of module and light intensity. Through this experiment, to obtain maximum power generation from limited PV modules, it is needed to fully understand constituent materials, fabrication method and dependence of incident light characteristics.