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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.
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),유병규(Yu Byung-Gyu),황혜미(Hwang Hye-mi),유권종(Yu Gwon-Jong) 한국태양에너지학회 2008 한국태양에너지학회 논문집 Vol.28 No.4
The modeling of PV (Photovoltaic) module is useful to perform detailed analysis of PV system performance for changing meteorological conditions, verify actual rated power of PV system sizing and determine the optimal design of PV system and components. This paper indicates a modeling approach of PV module performance in terms of meteorological conditions and identifies validity of this modeling method by comparing measured with simulated value of various PV modules using simulation model.
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.
蘇楨訓(Jung-Hun So),兪炳圭(Byung-Gyu Yu),黃?美(Hye-Mi Hwang),劉權鍾(Gwon-Jong Yu),崔宙燁(Ju-Yeop Choi) 대한전기학회 2008 전기학회논문지 Vol.57 No.11
Photovoltaic (PV) modules operate over a large range of conditions but manufacturer's information is not sufficient to determine their overall performance. Designers need a reliable tool to predict energy production from a photovoltaic module under all conditions in order to make a sound decision. The modeling method of photovoltaic (PV) module are useful to perform detailed analysis of PV system performance for changing meteorological conditions, verify actual rated power of PV system sizing and determine the optimal design of PV system and components. This paper indicates a modeling approach of PV module performance in terms of meteorological conditions and identifies validity of PV modules modeling by comparing measured with simulated value.
계통연계형 태양광발전 시스템의 고장유형별 손실 비교분석
소정훈(So Jung-Hun),고석환(Ko Suk-Whan),주영철(Ju Young-Chul) 한국태양에너지학회 2017 한국태양에너지학회 논문집 Vol.37 No.3
This paper presents losses comparison and analysis results for different types of fault modes of grid-connected photovoltaic system generated for long-term operation. The approach of losses comparison and analysis by faults is to identify relationship between measured and estimated values of five loss factors which are quantified from irradiance to system output power. This paper presents the symptom results for faults such as snow, shading, sensor defect, blackout, soiling and so on from three years or more monitored data. These results will indicate that it is useful to develop fault detection and diagnosis tool to enhance capacity factor and save operation and maintenance cost of grid-connected photovoltaic system in the field.
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.