A wind turbine yaw brake
A technology of wind turbines and yaw brakes, which is applied in the control of wind turbines, monitoring of wind turbines, and wind turbines, can solve the problems of large instantaneous resistance, affecting power generation efficiency, and easy damage, and achieves the effect of improving accuracy.
Active Publication Date: 2022-07-12
国家电投集团江苏海上风力发电有限公司
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Problems solved by technology
[0003] However, when the yaw brake of the existing wind power generator brakes, due to the inertia of the nose rotation during the braking process, there is a deviation in the position of the nose when braking towards the direction of the incoming wind until the end of the braking. Therefore, the yaw accuracy of the wind turbine head is low, which affects the power generation efficiency. After the yaw brake of the existing wind turbine directly brakes the upper installation ring plate, the yaw motor drive shaft stops rotating. When the inertia is braked, the instantaneous resistance is relatively large, and it is easy to damage
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[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0018] see Figure 1-3 , a wind turbine yaw brake, comprising a lower mounting ring plate 1, a limiting bearing 2, an upper mounting ring plate 3, the lower mounting ring plate 1 and the upper mounting ring plate 3 are respectively fixed with the bottom ring and the top ring of the limiting bearing 2 Connection, the top of the upper installation ring plate 3 is fixedly connected with the head of the wind turbine, the bottom of the low...
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The invention relates to the field of wind power generation equipment, and discloses a yaw brake of a wind power generator, comprising a lower mounting ring plate, a limiting bearing, and an upper mounting ring plate, the lower mounting ring plate and the upper mounting ring plate being respectively connected with the bottom ring of the limiting bearing It is fixedly connected with the top ring, the top of the upper installation ring plate is fixedly connected with the head of the wind turbine, and the bottom of the lower installation ring plate is fixedly connected with the frame of the wind turbine. The positioning wheel is set on the upper bearing of the linkage shaft that drives the overall rotation of the upper installation ring plate, and the return spring is connected between the rotating ring plate and the positioning wheel that rotates at the bottom of the lower installation ring plate. The rotation of the upper installation ring plate is braked, and the distance that the rotating ring plate continues to rotate under the action of inertial force during the braking process is used to compensate the distance value of the rotating ring plate behind the positioning wheel, which improves the control of wind turbine head deflection. flight accuracy.
Description
technical field [0001] The invention relates to the field of wind power generation equipment, in particular to a yaw brake of a wind power generator. Background technique [0002] Wind energy generator is a device that converts wind energy into kinetic energy. It uses wind energy for clean and pollution-free power generation. With the promotion of environmental protection, there are more and more applications. In order to improve the power generation efficiency of wind turbines, it is necessary to set up a yaw system to control the head of the machine. The yaw brake is a device that brakes when the nose yaw rotates to the incoming wind direction, so as to ensure that the nose is facing the incoming direction. [0003] However, when the yaw brake of the existing wind turbine is braking, due to the inertia of the rotation of the nose during the braking process, there is a deviation in the position of the nose when braking toward the incoming wind direction to the end of brakin...
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IPC IPC(8): F03D7/02F03D17/00F03D80/00
CPCF03D7/0204F03D7/0244F03D17/00F03D80/00Y02E10/72
Inventor 刘婉君
Owner 国家电投集团江苏海上风力发电有限公司