Brake device and method of wind turbine generator
A technology of wind turbines and braking devices, which is applied in wind power generation, wind turbines, control of wind turbines, etc., can solve problems such as wind turbine shaft breakage, and achieve the effect of gentle braking
Inactive Publication Date: 2014-07-02
SHANGHAI DIANJI UNIV
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Problems solved by technology
[0007] The present invention proposes a brake device and braking method for wind turbines, the purpose of which is to solve the problem of braking in emergency situations during the operation of wind turbines. At present, all brake systems are rigid brakes, which can easily cause wind turbine shafts to break. The invention proposes a flexible brake device and method to realize gentle braking of wind turbines
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[0023] The specific embodiments of the present invention are given below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in very simplified form and use imprecise ratios, which are only used for the purpose of conveniently and clearly assisting in describing the embodiments of the present invention.
[0024] Please refer to figure 1 with figure 2 , figure 1 Shown is a schematic structural diagram of a wind turbine brake device according to a preferred embodiment of the present invention, figure 2 Shown is a side view of the auxiliary device of the preferred embodiment of the present invention. The present invention proposes a brake device for a wind turbine, comprising: an auxiliary device 200 disposed outside the bearing 100 of the wind turbine, the ...
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The invention provides a brake device and method of a wind turbine generator. The brake device comprises an auxiliary device, a pressed handle and a brake lining, wherein the auxiliary device is arranged at the outer side of a bearing of the wind turbine generator and provided with a plurality of symmetrically distributed symmetrical air intervals, an inner slideway is arranged between the auxiliary device and the bearing, an outer slideway is arranged at the outer side of the auxiliary device, the pressed handle is arranged in one symmetrical air interval, is provided with a pressure connecting rod and enters the inner slideway or the outer slideway under the action of the pressure connecting rod, the brake lining is arranged on the pressed handle in a penetrating mode and is connected with a spring, and the other end of the spring is connected with a fixing device of the wind turbine generator. The flexible brake device and method resolve the existing brake problem generated when the wind turbine generator is in an emergency in the operating process, can achieve flexible braking of the wind turbine generator and prevent a fan shaft from being broken.
Description
technical field [0001] The invention relates to the field of wind power generation, and in particular to a braking device and a braking method for a wind turbine. Background technique [0002] As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. Its reserves are huge, and the global wind energy is about 2.74×10 9 MW, of which the available wind energy is 2×10 7 MW is 10 times larger than the total amount of water energy that can be developed and utilized on the earth. [0003] my country is rich in wind energy resources, and the exploitable and utilizable wind energy reserves are about 1 billion kW, of which, the onshore wind energy reserves are about 253 million kW (calculated based on data at a height of 10m from the ground on land), and the offshore wind energy reserves are about 750 million kW. A total of 1 billion kW. At the end of 2003, the national installed capacity of electric power was about 567 mill...
Claims
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Login to View More IPC IPC(8): F03D7/00F16D65/02F16D65/14
CPCY02E10/723Y02E10/72
Inventor 李义新
Owner SHANGHAI DIANJI UNIV