Wind turbine yaw control method and device and wind turbine

A technology of yaw control and wind turbines, applied in the direction of wind engine control, engine control, engine control parameters, etc., can solve problems such as yaw drift, yaw motor overload, etc.

Active Publication Date: 2019-08-23
SANY ELECTRIC CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention includes providing a wind turbine yaw control method, device and wind

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  • Wind turbine yaw control method and device and wind turbine
  • Wind turbine yaw control method and device and wind turbine
  • Wind turbine yaw control method and device and wind turbine

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Embodiment Construction

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0053] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention relates to the technical field of wind power, and discloses a wind turbine yaw control method and device and a wind turbine. The wind turbine yaw control method comprises the steps thatwhether the wind turbine meets the yaw condition or not is judged; if yes, a hydraulic brake is controlled to be released; and within the first preset time period since the hydraulic brake is released, if the pressure of the hydraulic brake is lowered to the first preset yaw pressure or below, a yaw driving part is started. By adopting the control method of the embodiment of the invention, the pressure of the hydraulic brake can be lowered to the first preset yaw pressure or below, and the yaw driving part is started. By reasonably setting the first preset yaw pressure, the problem that the yaw driving part is started when the hydraulic braking force is large, and thus, the yaw driving part is overloaded can be solved; and in addition, the problem that after the braking force is reduced tothe lower level, the yaw driving part cannot be started in time, and wind turbine yaw drifting is caused can be solved. The wind turbine yaw control device and the wind turbine are both used for achieving the yaw control method.

Description

technical field [0001] The present invention relates to the technical field of wind power, in particular, to a wind turbine yaw control method, device and wind turbine. Background technique [0002] At present, the yaw control strategy of wind turbines is mainly to start the yaw motor after releasing the hydraulic brake for a certain period of time, and then delay the hydraulic brake for a certain period of time after the yaw motor stops. This strategy cannot guarantee the consistent action of the hydraulic brake and the yaw motor, so it is possible that when the hydraulic brake is not released to the yaw pressure, the yaw motor is started, and the yaw resistance is too large, which may cause difficulty in yaw or yaw trip; It is also possible that the yaw motor is not started in time after the hydraulic brake is released, and the binding force of the hydraulic brake decreases, causing the wind turbine to drift under the action of the wind. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/32F05B2270/321F05B2270/602F05B2270/604Y02E10/72
Inventor 高凤翔董召然高坤
Owner SANY ELECTRIC CO LTD
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