| 摘要 |
PROBLEM TO BE SOLVED: To azimuth-control a nacelle to be directed to a front face with respect to an actual main wind direction. SOLUTION: This wind power generator detects the main wind direction by an anemoscope (wind direction detecting means) 11, assumes an actual wind direction, by assuming a wind direction offset value that is a deviation between a main wind direction in a prescribed wind speed and a practical wind direction of the actual wind direction, by a wind direction assuming part (wind direction assuming means) 25, calculates an average electric power output in a prescribed time in the assumed actual wind direction, by an average electric power output calculating part (average electric power output calculating meas) 26, approximates the average electric power output in the assumed wind direction offset value to a quadratic curve, by an actual wind direction estimating part (actual wind direction estimating means) 27, and estimates the actual wind direction by estimating the wind direction offset value at the time when the average electric power output in the approximated quadratic curve gets maximum, as an actual offset value. COPYRIGHT: (C)2010,JPO&INPIT |
