| 摘要 |
The invention relates to a method to align the yaw angle (YA) or yaw-direction of a nacelle (NA) of a wind turbine (WT), while the wind turbine (WT) is part of a wind farm (WF).
According to the method invented the wind speed (WS) of the incoming wind is measured. The measured wind speed (WS) is compared with a predefined wind speed. A first wind turbine (WT1) of the wind farm (WF) is turned from operational mode into idle mode if the measured wind speed (WS) is below the predefined wind speed. The yaw angle (YA1) of the nacelle (NA1) of the first wind turbine (WT1), which is in idle mode, is saved as first yaw angle (YA1). The first yaw angle (YA1) is communicated to at least a second wind turbine (WT2) of the wind farm (WF), which is turned from operational mode into idle mode. The yaw angle of the nacelle of the second wind turbine (WT2) is adjusted to the first yaw angle (YA1). The first yaw angle (YA1) is kept by the nacelle of the second wind turbine (WT2) while it is in idle mode.
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