Yaw control method and device of wind generating set

Abstract

The invention provides a yaw control method and device of a wind generating set. The yaw control method comprises the steps that cluster analysis is conducted on historical environment data and historical yaw angles of n wind generating sets, and n is a positive integer; m second wind generating sets related to the first wind generating set are determined in the n wind generating sets through cluster analysis, the historical yaw angles of the m second wind generating sets and the historical yaw angle of the first wind generating set have the optimal correlation, and m is a positive integer; the mapping relation between the historical yaw angle of the first wind generating set and the historical yaw angles of the m second wind generating sets is determined; and based on the identifiers of the m second wind generating sets and the mapping relation, the current yaw angle estimated value of the first wind generating set is determined, and the current yaw angle estimated value is used for current yaw control of the first wind generating set.

Description

technical field [0001] The present disclosure relates to the field of wind power generation, and in particular, to a yaw control method and device for a wind power generating set. Background technique [0002] The yaw control system is an important part of ensuring the normal operation of the wind turbine. The key of the yaw control system is how to obtain an accurate yaw angle. At present, wind turbines generally use wind vanes to obtain the accurate wind direction to calculate the yaw angle. [0003] However, the current difficulty is that once the wind vane of the wind turbine is damaged, the wind turbine can only be shut down and wait for a new wind vane to be replaced. If the wind vane is out of stock, it needs to stop and wait for the spare parts to arrive, which will cause serious power loss during this period. Especially for offshore wind turbines, it takes a long time to replace the wind vane, which leads to a large loss of power generation. In addition, if the w...

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Problems solved by technology

[0003] However, the current problem is that once the wind vane of the wind turbine is damaged, the wind turbine can only be shut down due to failure and wait for a new wind vane to be replaced.

If the wind vane is out of stock, it will need to shut down and wait for the spare parts to arrive, which will cause serious loss of power generation during this period

Especially for offshore wind turbines, it takes a long time for the wind vane to go out to sea for replacement, resulting in a large loss of power generation

In addition, if the wind vane of the wind turbine is not completely damaged, the wind turbine will run at the wrong yaw angle, which will also cause loss of power generation

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