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50㎾급 PV시스템 시뮬레이터의 구현 및 경제성 분석에 관한 연구
이강연(K. Y. Lee),김용구(Y. G. Kim),신석두(S. D. Shin),김형곤(H. G. Kim),전형석(H. S. Chun),김병철(B. C. Kim),민완기(W. K. Mim),김남오(N. O Kim) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.11
This paper summarizes the results of these efforts by offering a photovoltaic system structure in 50㎾. The combination of photovoltaic system components are interconnected and system monitoring system will be summarized for the purpose of the increasing safety in this article. This paper describes configuration of utility interactive photovoltaic system which generated electric power supplies to dormitory. In order to installing the middle or large scale photovoltaic system, It must investigated the optimal design of system, compute quantity of power generation, economic rate of return and so on. In this paper represent 50㎾ utility photovoltaic system examination, developed simulation results and financial analysis. The performance of photovoltaic system has been evaluated, analyzed with simulation and financial analysis results. The results obtained in this research will be much useful to prior investigation for installing utility interactive photovoltaic system.
유도전동기 속도검출을 위한 최적 제어시스템에 관한 연구
이강연(K.Y Lee),이진섭(J.S Lee),조금배(G.B Cho),이상일(S.I Lee),백형래(H.L Baek) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
In this paper, a instantaneous speed measurement method using a three phase sinusoidal encoder is described and it's simulations are developed. The proposed method can easily detect the AC motor speed by using that the encoder is propotion to the AC motor speed.<br/> The performance of proposed method is confirmed by computer simulation and experiment results, The high accuracy of the optimum control system, AC motor speed detection is designed and proposed.
이강연(K.Y. LEE),최연옥(Y.O. CHOI),백형래(H.L.BAEK),조금배(G.B.CHO),이성길(S.G.LEE),김동휘(D.H.KIM) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
This paper presents experimental operation with utility invertactive 3㎾ photovoltaic generation system. And that describe configuration of utility interactive photovoltaic system which power supply for Demonstration experiment.. The status of photovoltaic generation system comp-onents and interconnection and safety equipment will be summarized. This paper discusses property operation state which system endure division of power for demonstration experiment.
박정국(Z.G. Piao),박정민(J.M. Park),이강연(K.Y. Lee),김평호(P.H. Kim),임양수(Y.S. Lim),조금배(G.B. Cho),오금곤(G.K. Oh) 전력전자학회 2008 전력전자학술대회 논문집 Vol.- No.-
본 논문에서는 태양에너지 실증연구단지에 설치된 서로 다른 2기 3㎾급 태양광발전 시스템에 대한 5년간의 데이터 분석을 통하여 시스템 구성요소인 태양전지와 인버터의 효율 특성 및 시스템의 운전특성의 경년변화에 대하여 비교분석하였다. A 시스템의 경우 PV 어레이 변환효율은 2004년 이후 약 0.2% 정도로 지속적으로 떨어지는 추세를 나타내고 있으며, B시스템의 경우 인버터의 효율은 약 0.5% 정도로 지속적으로 떨어지는 추세를 나타내고 있다. 2기의 PV 시스템의 발전효율, 이용율 및 성능비는 모두 2004년 이후 지속적인 효율저하를 나타내고 있음을 확인 하였다.
이강연(K.Y.Lee),김형석(H.S.Kim),박정민(J.M.Park),조금배(G.B.Cho),백형래(H.L.Baek),김동휘(D.H.Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
PV model is presented based on the shockley diode equation The simple model has a photo-current source, an single diode junction and a series resistance and includes temperature dependences An accurate PV module electrical model is presented, matching with boost converter MPPT strategy and demosnstarted in Matlab for a typical general purpose solar cell Given solar insolation and temperature, the model returns current vector and MPP.
건물 일체화 태양광발전시스템의 입사각에 따른 발전효율에 관한 연구
김기범(K.B.Kim),이강연(K.Y.Lee),박정민(J.M.Park),박진형(J.H.Park),백형래(H.L.Baek),조금배(G.B.Cho) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
This paper presents a utility interactive photovoltaic generation system with the angle of inclination and direction.<br/> This paper summarizes the results of these efforts by offering a snapshot of the configuration of photovoltaic in residential applications. The status of PV system components and inter-connection and safety equipment will be summarized. also, This System is able to variation the angle of inclination and direction. Hence this paper discuss only results that might be useful for generation power.