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Wind turbine generator adopting wind speed rudder for controlling backward speed regulation

A wind turbine and wind speed rudder technology, applied in the field of wind turbines, can solve the problems of reducing the service life of motor bearings and blades, low wind energy utilization, and manual parking, etc., so that the blade hub does not require maintenance and the blade cost is low , Sensitive and accurate effect of sheltering from wind

Active Publication Date: 2013-11-20
江苏天能海洋重工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are several speed regulation methods for fixed pitch: 1. Blade tip stall, 2. Electromagnetic brake, 3. Side deflection, 4. Backward tilt, 5. Electromagnetic brake plus side deflection. The utilization rate of wind energy is low when using blade tip stall
Electromagnetic brake plus yaw speed control is okay, but it is not accurate to the wind, and it will make the fan swing back and forth, reducing the service life of the motor bearings and blades
The backward tilt can only be manually parked, which is rarely used

Method used

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  • Wind turbine generator adopting wind speed rudder for controlling backward speed regulation
  • Wind turbine generator adopting wind speed rudder for controlling backward speed regulation
  • Wind turbine generator adopting wind speed rudder for controlling backward speed regulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as Figure 1 As shown, the wind power generator using the wind speed rudder to control the backward tilt speed regulation includes the yaw platform 18, the tower 2, the generator 5, the wind speed rudder 17, the wind speed rudder stock 16 and the connecting rod 12, and the bearing for the yaw platform 18 Fixed on the tower 2 for yaw facing the wind, the number of generator 5 is one, and the generator 5 is movably installed on the yaw platform 18 through the backward tilting axis 8, which can be turned horizontally against the wind and can be tilted backward to avoid the wind , the back tilt angle can be set. The reclining shaft 8 is located at the lower part of the generator and is lower than the generator axis. The front lower end of the generator is equipped with a forward position limiter 23 to prevent the generator from returning too much. The tail boom 19 is fixed on the yaw platform 18 for facing the wind. There is a rudder 13 at the tail of the tail boom 1...

Embodiment 2

[0024] Such as Figure 2-4 Shown, utilize wind speed rudder to control the wind power generator of reclining speed, comprise yaw platform 18, tower frame 2, generator 5, wind speed rudder 17, wind speed rudder stock 16 and connecting rod 12, the described generator The quantity is four, and every two generators form a group, and the two groups of generators are set up and down.

[0025] The yaw platform 18 is mounted on the tower frame 2 through bearings, and the lower tower tube 3 is welded below the yaw platform 18. The lower tower tube 3 is barrel-shaped and is set outside the tower frame 2. Two lower cross bars 4 are welded on the side, and the two generators 5 located below are installed on the installation frame 20 through the rear tilt shaft 8. The installation frame 20 is installed on the outer end of the lower cross bar 4. 11 links to each other, and the backward rocking arm 11 links to each other with the connecting rod 12 through the Xiao shaft 9, and the connectin...

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Abstract

The invention relates to a wind turbine generator adopting a wind speed rudder for controlling backward speed regulation. The wind turbine generator comprises a yawing platform, a tower frame, generators, the wind speed rudder, a wind speed rudder stock and a connecting rod, wherein the yawing platform is mounted on the tower frame; at least one generator is directly or indirectly mounted on the yawing platform; the generators are connected with the wind speed rudder stock through the connecting rod; and the wind speed rudder is fixed at the tail end of the wind speed rudder stock. According to the wind turbine generator, when heavy wind blows, the wind turbine generator can incline backwards to avoid the wind; and when the heavy wins blows to a building, the wind direction can be changed abruptly, the wind avoiding reaction is sensitive and accurate, and the wind turbine generator has wider adaptability to the wind speed and suitable for multiple wind power generation through one tower. A wind turbine generator system of one to five kilowatts can be produced with a set of templates of one kilowatt, and a wind turbine generator system of twenty five kilowatts can be produced with a set of templates of five kilowatts, so that the development cost of a blade, a propeller hub and the generator is decreased. According to the wind turbine generator, two, three, four or more generators can be manufactured according to practical conditions.

Description

technical field [0001] The invention relates to a wind-driven generator, in particular to a wind-driven generator which uses a wind speed rudder to adjust blade recoil to adjust the speed of the wind-driven generator. technical background [0002] With the lack of energy supply, the pollution of the environment and the state's support policy for distributed power, it will accelerate the entry of small wind power into ordinary people's homes. At present, the speed regulation of small wind power is divided into two categories: fixed pitch and variable pitch. Variable pitch is safe and reliable but high in cost. Fixed pitch is low in cost but poor in speed control, large in voltage fluctuation, and poor in strong wind resistance due to low design wind speed. . Strong winds require the generator to be lowered for shelter. There are several speed regulation methods for fixed pitch: 1. Blade tip stall, 2. Electromagnetic brake, 3. Side deflection, 4. Back tilt, 5. Electromagneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/00F03D11/00
CPCY02E10/722Y02B10/30Y02E10/72Y02P70/50
Inventor 张成革
Owner 江苏天能海洋重工有限公司
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