Method and device for controlling floating body wind turbine power generating apparatus, and floating body wind turbine power generating apparatus
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United States of America Patent
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Jul 17, 2018
Grant Date -
Nov 19, 2015
app pub date -
Dec 27, 2012
filing date -
Dec 27, 2012
priority date (Note) -
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Abstract
A method of controlling a floating-body wind turbine power generating apparatus including a wind turbine generator disposed on a floating body includes a pitch-angle increasing step of increasing a pitch angle of a blade of the wind turbine generator when the wind turbine generator is stopped, so that an aerodynamic braking force is applied to a rotor of the wind turbine generator. In the pitch-angle increasing step, a first change rate of the pitch angle of the blade in a first period during which the wind turbine generator is in an inclining motion toward an upwind side from a vertical direction due to sway of the floating body, is smaller than a second change rate of the pitch angle of the blade in a second period during which the wind turbine generator is in an inclining motion toward a downwind side from the vertical direction due to the sway of the floating body.
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