소형 풍력발전기 성능 특성 평가에 관한 연구

Abstract

For the fundamental study on a small wind turbine, the performance of the small wind turbine and wind resource were measured in Hangwon wind farm on Jeju island. The small wind turbine with rated power of 720W and 10m in height was installed in the wind farm. Also the meteorological mast with 10m in height was installed near the small wind turbine for measuring wind data. Using WindPRO and WAsP, wind characteristics such as average wind speed, wind direction and turbulence intensity were analyzed in detail. As a result, wind conditions in Hangwon wind farm were found to be suitable for the performance testing for the small wind turbine. The power measured from the small wind turbine was a little smaller than that from manufacturer. Since that came from a technical error, the measured power curve could be similar to manufacturer's. In this study, the problem about yawing of the small wind turbine occurred during performance testing. Accordingly, when a small wind turbine was installed at a site, it would be important to erect without having a tilt any directions. Also it is necessary to investigate on design, structure and weight for the fantails of small wind turbines.