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소정훈,정영석,유병규,유권종,최주엽 전력전자학회 2006 전력전자학회 논문지 Vol.11 No.1
Establishment of practicalization technologies is becoming more important as dissemination of domestic PV system has been increased. To improve performance through PV system optimization, this paper presents loss factors analysis of PV system based on results of field operational test. Also, as simulation results are compared with actual operational ones, the main loss factors of PV system due to performance degradation are reviewed. PV(Photovoltaic) 시스템의 국내 이용보급이 확대되면서 PV시스템의 최적화 및 운전시에 발생되는 문제점에 대한 대책기술에 대한 실용화기술 확립의 중요성이 대두되고 있다. 본 논문에서는 PV시스템의 최적화를 통한 성능개선을 위해서 실측결과를 토대로 종합적인 성능특성을 분석 평가하여 PV시스템의 손실요인을 비교 분석하였다. 그리고 시뮬레이션과 실측결과를 비교하여 PV시스템의 주요 손실요인을 분석함으로서 성능저하 및 문제점에 대해서도 검토하였다.
50kW급 계통연계형 태양광발전시스템의 성능모니터링 결과 및 평가분석
소정훈,유병규,황혜미,유권종,최주엽,So, Jung-Hun,Yu, Byung-Gyu,Hwang, Hye-MI,Yu, Gwon-Jong,Choi, Ju-Yeop 한국태양에너지학회 2007 한국태양에너지학회 논문집 Vol.27 No.2
Monitoring system is constructed for evaluating and analyzing performance of installed 50kW grid-connected PV system and have been monitored since October 2005. As climatic and irradiation conditions have been varied through long-term operation, there is necessity for evaluating numerical values of PV(Photovoltaic) system performance to observe the overall effect of environmental conditions on their operation characteristics. This paper presents performance monitoring results and analysis on component perspective(PV array and power conditioning system) and global perspective(yield, losses) of PV system for one year monitoring periods.
Thyristor-MOSFET 형 고주파 인버터의 특성 해석
이동춘,김동희,소정훈 嶺南大學校 工業技術硏究所 1995 工業技術硏究所論文集 Vol.23 No.2
This paper proposed a high frequency inverter with natural turn-off device. Since state parameters of proposed inverter were nomalized, the characteristics according to rate of inductor, duty ration and equvalent resistive load were presented as useful data for circuit design. The proposed inverter can be realized in practical applications using design data of circuit based on characteristic values obtained from characteristic evaluations.
소정훈(J.H.So),유권종(G.J.Yu),정명웅(M.W.Jung),이종건(J.K.Lee),석줄기(J.K.Seok),최주엽(J.Y.Choi) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
This paper compares the performances of estimate by computer simulation considering parameters of system specifications. installation and surrounding conditions with those of real PV system and show verification of designed value. We evaluate the performances of PV system with changing of parameter, specially a field type and suggest optimum condition in each field type.<br/> In the future, We will intend to develop an analysis tool and construct database for optimum design of PV system.
소정훈(So Jung-Hun),황혜미(Hwang Hye-Mi),정영석(Jung Young-Seok),고석환(Ko Suk-Whan),주영철(Ju Young-Chul),임현묵(Lim Hyun-Mook) 한국태양에너지학회 2013 한국태양에너지학회 논문집 Vol.33 No.5
This paper presents a simple but valid design factor calculation method of grid-connected photovoltaic system using normalized yield model. The proposed calculation method can be represented as a quantitative value about five design factors from irradiance to system output power. The validity of this method is identified by analyzing design factor with three years monitored data. These results will indicate that it is useful to determine the optimal design and selection of grid-connected photovoltaic system to meet different user purposes and enhance long-term reliability and stability of grid-connected photovoltaic system.
소정훈(So Jung-Hun),이봉섭(Lee Bong-Seob),유진수(Yoo Jin-Su),황혜미(Hwang Hye-mi),유권종(Yu Gwon-Jong) 한국태양에너지학회 2010 한국태양에너지학회 논문집 Vol.30 No.6
This paper presents performance estimation approach of grid-connected photovoltaic(PV) system to predict energy yield from irradiance to PV system using normalized yield model for changing meteorological conditions. The accuracy and validity of proposed performance estimation method is identified by compared measured with estimated yield using monitored data. These results will indicate that it is useful to estimate various loss factors causing the system performance obstruction and enhance the lifetime yield of PV system.
소정훈(So Jung-Hun),임현묵(Lim Hyun-Mook),황혜미(wang Hye-Mi),정영석(Jung Young-Seok),고석환(Ko Suk-Whan),주영철(Ju Young-Chu) 한국태양에너지학회 2013 한국태양에너지학회 논문집 Vol.33 No.5
This paper presents a simple but valid loss calculation method of grid-connected photovoltaic system based on normalized yield model. The proposed method can be represented as a quantitative value for five losses and performance of grid-connected photovoltaic system with three years monitored data. These results will indicate that it is useful to investigate various loss factors causing the performance obstruction, enhance the lifetime yield for changing meteorological conditions, and determine the optimal design and performance improvement of grid-connected photovoltaic system.