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Method and apparatus for protecting wind turbines from extreme events
Method and apparatus for protecting wind turbines from extreme events
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机译:用于保护风力涡轮机免受极端事件影响的方法和设备
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摘要
A wind turbine has a Lidar device to sense wind conditions upstream of the wind turbine. Signals from the wind turbine are processed to detect an extreme change in wind direction. The detection is performed by differentiating the rate of change of wind direction and filtering for a period of time. On detection of extreme change the system controller takes the necessary evasive action which may include shutting down the turbine, commencing an immediate yawing action, and de-rating the turbine until the yawing action is complete.
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