Wind regime identification method and device, controller and wind generating set

Abstract

The embodiments of the invention disclose a wind regime identification method and device, a controller and a wind generating set. The wind regime identification method comprises the steps of obtaining an actual wind speed at a predetermined moment; drawing a standard extreme working gust curve of the target wind generating set in the preset period by taking the actual wind speed at the preset moment as a starting point; determining a peak value and a valley value of the standard extreme working gust curve; determining the standard wind speed change amplitude of the standard extreme working gust curve according to the peak value and the valley value, respectively acquiring actual wind speeds at moments corresponding to the peak value and the valley value; determining the actual wind speed change amplitude according to the actual wind speed at the moment corresponding to the peak value and the valley value; and recognizing whether the wind condition in the preset period is the gust wind regime exceeding the standard or not according to the standard wind speed change amplitude and the actual wind speed change amplitude. According to the wind regime recognition method and device, the controller and the wind generating set, whether the wind regime in the preset period is the gust wind regime exceeding the standard or not can be recognized.

Description

technical field

[0001] The invention relates to the technical field of wind power generation, in particular to a wind condition identification method, device, controller and wind power generating set. Background technique

[0002] In the wind turbine design standard, specific definitions are given for different wind conditions, which are used for control design and load calculation, and the design of wind turbines is also carried out according to the definition in the standard. However, in an actual operating environment, the actual wind conditions will not exactly match the conditions defined in the design criteria. Therefore, how to identify wind conditions that do not meet the design standards is an urgent problem to be solved. Contents of the invention

[0003] Embodiments of the present invention provide a wind condition identification method, device, controller, and wind power generating set, capable of identifying whether the current wind condition is a gust wind c...

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