Novel yaw control method based on wind direction prediction

Abstract

The invention discloses a novel yaw control method based on wind direction prediction. The method comprises the following steps of (1) establishing an ARIMA-KF prediction model for predicting the winddirection; and (2) performing yaw control based on an MPC of a finite control set. Compared with an existing industrial yaw control method, the novel yaw control method based on wind direction prediction has smaller yaw errors, and therefore the maximum wind power obtaining capacity is improved.

Description

technical field [0001] The invention relates to a yaw control method, in particular to a novel yaw control method based on wind direction prediction. Background technique [0002] Due to the increasing demand for wind resources, the research on wind turbines today focuses on the maximization of power generation under unit investment, in which yaw control technology plays an indispensable role, which can directly affect the power production and Component load. [0003] The work of yaw control will also affect the performance of wind turbines. On the one hand, the misalignment of yaw will reduce the wind power acquisition; on the other hand, the error of yaw may increase the load of each component, so the yaw system Operation has an important impact on the performance of wind turbines. [0004] In the existing industrial yaw control methods, in order to avoid the high load of wind turbines caused by the rapid movement of the yaw system, the yaw speed is usually designed in t...

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Problems solved by technology

[0004] In the existing industrial yaw control methods, in order to avoid the high load of wind turbines caused by the rapid movement of the yaw system, the yaw speed is usually designed in the range of 0.2° / s to 0.8° / s; Overuse of the yaw actuator, the yaw system is always activated at discrete intervals, which will result in large yaw errors

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