Furling Control (과 풍속 출력제어); Small Wind Turbine System (소형 풍력발전 장치); Airfoil (익형); Blade (날개); HAWT (horizontal axis wind turbine); Rated Power (정격출력); Cut-In Wind Speed (기동풍속)
한국정밀공학회지, v.29, no.6, pp.693 - 701
In this study, a small wind turbine airfoil specialized for national wind condition was designed in order to develop the furling control type HAWT. And then a flow analysis was carried out based on the blade drawing which was designed to characterize of the developed airfoil. The result of the flow analysis showed that the torque on the 3 blades was 180.23N.m. This is equivalent to an output power of 5.66kw and an output efficiency of 0.44. Then we produced and constructed a 3kW - furling control type HAWT by getting the system unit design technology such as the specialized furling control device. By operating this turbine, we could get 3kW of the rated power at a wind speed of 10.5m/s through the ability test. Cut-in wind speed was 2m/s, generator efficiency was 92% at the rated power output. Sound power level was 87.2dB(A). Also we observed that the output power was limited to 10.5m/s with furling system operation.