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문채주(Moon Chae-Joo),정의헌(Cheang Eui-Heang),심관식(Shim Kwan-Shik),정권성(Jung Kwen-Sung),장영학(Chang Young-hak) 한국태양에너지학회 2008 한국태양에너지학회 논문집 Vol.28 No.6
This paper discussed the Feasibility study of wind power generation considering the topographical characteristics of Korea. In order to estimate the exact generation of wind power plants. we analyzed and compared wind resources in mountain areas and plain areas by introducing not only wind speed. the most important variable, but also wind distribution and wind standard deviation that can reflect the influence of landform sufficiently. According to the results of this study, generation was almost the same at wind power plants installed in southwestern coastal areas where wind speed was low as at those installed in mountain areas in Gangwondo where wind speed was high. This demonstrates that the shape parameter of wind distribution is low due to the characteristics of mountain areas, and the standard deviation of wind speed is large due to the effect of mountain winnds, therefore, actual generation compared to southwestern coastal areas is almost similar in mountain areas even though wind speed is high.
문채주(Moon Chae-Joo),진종수(Jin Jong-Soo),서동춘(Seo Dong-Choon),정권성(Jung Kwen-Sung),김태곤(Kim Tae-Gon),김용구(Kim Young Gu) 한국태양에너지학회 2008 한국태양에너지학회 학술대회논문집 Vol.- No.-
To control the lead storage batteries it is necessary to consider the characteristics of each battery connected in series. In this study, the charging and discharging characteristics of sealed lead storage batteries 12V/1.2A was investigated one by one through experiments. The results of the experiment shows that one should consider the state of each battery to prevent overcharge or deep discharge. Also, we designed an equipment to measure battery voltages simultaneously using micro-controller. This equipment will be useful for monitoring batteries at PV generation system.