JP2006329107A5 - - Google Patents

Claims (13)

  One anemometer is arranged above the nacelle that supports the rotation axis of the rotor of the horizontal axis wind turbine, and the other anemometer is arranged at a position different from the one anemometer in the rotation axis direction and / or the vertical direction. A wind-up angle measuring method for calculating a wind-up angle based on the wind speeds measured by the two anemometers.   One anemometer is arranged above the nacelle that supports the rotation axis of the rotor of the horizontal axis wind turbine, and the other anemometer is arranged at a position different from the one anemometer in the rotation axis direction and / or the vertical direction. A wind-up angle measurement method for calculating a wind-up angle based on a ratio of wind speeds measured by the two anemometers.   The wind-up angle measuring method according to claim 1 or 2, wherein the anemometers are arranged above the nacelle and the wind speed is measured by the anemometers.   The method according to claim 1 or 2, wherein the other one anemometer is arranged off the nacelle and the wind speed is measured by the two anemometers.   5. The method according to claim 4, wherein the other one anemometer is arranged on the windward side from the tip of the nacelle and the wind speed is measured by the two anemometers. A nacelle that supports the rotating shaft of the rotor;
An anemometer fixed in position relative to the nacelle above the nacelle;
Another anemometer fixed at a fixed position with respect to the nacelle different from the one anemometer in the rotation axis direction and / or the vertical direction;
A horizontal axis wind turbine comprising: a wind-up angle measuring means for measuring a wind-up angle based on wind speeds measured by the anemometers. The blowing angle measuring means includes:
A wind speed ratio calculating means for calculating a wind speed ratio of wind speeds measured by the two anemometers;
Recording means on which data indicating the correlation between the wind speed ratio and the blowing angle is recorded;
On the wind speed ratio correlation data recorded on the recording means, a windup angle calculating means for calculating a windup angle corresponding to the wind speed ratio calculated by the wind speed ratio calculating means;
The horizontal axis wind turbine according to claim 6 , wherein   The blowing angle measuring means includes:
A recording means in which a data table describing a correspondence between a combination of wind speeds measured by the two anemometers and a wind-up angle is recorded;
The measured value of the anemometers is input, and the blowing angle calculating means for calculating the blowing angle corresponding to the measured values of the two anemometers input on the data table recorded in the recording means;
The horizontal axis wind turbine according to claim 6, comprising: The horizontal axis wind turbine according to claim 6, 7 or 8 , wherein the two anemometers are disposed above the nacelle. The horizontal axis wind turbine according to claim 6, 7, or 8, wherein the other one anemometer is disposed off the upper side of the nacelle. The horizontal axis wind turbine according to claim 10, wherein the other one anemometer is disposed on the windward side from the tip of the nacelle. The horizontal axis wind turbine according to any one of claims 6 to 11 , wherein both the anemometers are supported by the nacelle. Claim claim 6, wherein the one anemometer above the central portion excluding the side edge portion of each sides 1/4 of the upper surface of the nacelle is placed the width of the nacelle as one 12 The horizontal axis windmill as described in any one of these.