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박재식(Jae-Shik Park),소명옥(Myong-Ok So),오세준(Se-June Oh),유희한(Hee-Han Yoo),박진길(Jin-Gil Park),하주식(Joo-Shik Ha) 한국마린엔지니어링학회 2003 한국마린엔지니어링학회 학술대회 논문집 Vol.2003 No.-
Photovoltaic power generation systems are expected to be widely used becase of their cleanness in the environment. But one of their disadvantages is the unexprected fluctuation of photovoltaic power generated by the weather conditions.<br/> This paper proposes to predict the output fluctuation of photovoltaic power by analyzing clouds through the image processing technique. First, the velocity of the cloud in the image is calculated by the comparison between two sequential images of the cloud, and then, the weather conditions are forecasted by examining the color values of the image along the direction of the cloud movement. Experimental results, the weather forecast 60, 90 and 120 seconds ahead and the estimation of the time required for the solar radiation to fluctuate on a large scale, show the possibility of the prediction of the output fluctuation of photovoltaic power generation system.<br/>