Intelligent optimization wind turbine yaw control method and device and wind turbine

A yaw control, wind turbine technology, applied in the control algorithm type, wind turbine control, wind power generation and other directions, can solve the problem that the unit is not accurately aligned with the wind direction, the blade force is unbalanced, the power is reduced, etc. Small error problem, improving wind accuracy and reducing wind error

CN110397554AInactive Publication Date: 2019-11-01GUODIAN UNITED POWER TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-11-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention provides an intelligent optimization wind turbine yaw control method and device and a wind turbine. The method comprises the following steps of correcting a wind direction deviation value by adopting a preset fuzzy neural network prediction algorithm; controlling the starting of a yawing mechanism by respectively adopting different differentiated control strategiesfor high wind speed and low wind speed; and adjusting the direction of the yawing mechanism by adopting a hill climbing algorithm to find the maximum output power. The intelligent optimization wind turbine yaw control method and device and the wind turbine provided by the embodiment of the invention adopt the differentiated control strategy under high and low wind speeds, so that yaw action conditions are refined, and yaw action is more accurate.
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Description

technical field

[0001] The invention relates to the technical field of wind power generation, in particular to an intelligent optimization yaw control method and device for a wind turbine, and a wind turbine. Background technique

[0002] As the fastest-growing green and clean energy, wind energy has received extensive attention and research all over the world because of its large reserves, wide distribution, and complete green and non-polluting characteristics. Because most of the regional wind direction conditions are changeable and irregular, therefore, The effective and accurate tracking of the wind direction by the wind turbine depends on the yaw system of the wind turbine, which can quickly and accurately control the wind, and is an indispensable core part of the wind turbine.

[0003] The working principle and characteristics of the yaw system of large wind turbines: the yaw system generally consists of yaw bearings, yaw drive devices, yaw brakes, yaw counters, yaw hy...

Examples

Embodiment Construction

[0026] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0027] figure 1 A flow chart of an intelligent optimization yaw control method for wind turbines provided by an embodiment of the present invention is shown. see figure 1 , the wind turbine yaw control method of intelligent optimization includes:

[0028] S11, using a preset fuzzy neural network prediction algorithm to correct the wind direction deviation value.

[0029] First, the fuzzy network neural network prediction algorithm is added to the collected wind direction deviation data for analysis and processing, and the collected 6 wind direction deviation signals are grouped into a group for the prediction and analysis of the seventh data, and then the current ...