CN211623614U - Two-blade downwind anti-typhoon wind generating set - Google Patents
Two-blade downwind anti-typhoon wind generating set Download PDFInfo
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- CN211623614U CN211623614U CN201922310152.2U CN201922310152U CN211623614U CN 211623614 U CN211623614 U CN 211623614U CN 201922310152 U CN201922310152 U CN 201922310152U CN 211623614 U CN211623614 U CN 211623614U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses an anti typhoon wind generating set of two blade downwind, adopt the design of downwind, wind is wheel hub to again through wind generating set's cabin afterbody promptly, the last flange port that supplies the blade connection installation usefulness that is formed with two symmetries of wheel hub, the blade has two to be two flange port departments of 180 symmetries and installing on this wheel hub, during normal work, realize wind direction and 180 operations of cabin contained angle through power supply control, the typhoon mode is under the unpowered power condition, the unit blade is in feathering (paddle 90 degrees) state, through the adaptation of unit to typhoon load (direction), realize driftage passively, ensure that the unit bears the platform wind load and is minimum. Through the utility model discloses can realize that during typhoon takes place, fan blade all is in the horizontality, avoids having the directional high altitude of blade to bear higher typhoon load to effectively reduce the load under the unit typhoon condition, improve the anti typhoon reliability of unit, and to the feasibility of bigger impeller diameter development.
Description
Technical Field
The utility model belongs to the technical field of wind power generation's technique and specifically relates to indicate a two-blade downwind anti-typhoon wind generating set.
Background
The development of wind generating sets towards larger impeller diameters for obtaining higher generating capacity benefits is an industry inevitable trend. In most coastal and offshore wind electric field areas, with the influence of typhoons, the wind model features also have higher wind speeds at spatial positions higher from the ground. In a conventional three-blade unit, at least one blade is located at a higher spatial position no matter what azimuth state the impeller is located, so that the influence of higher wind load is borne, and the three-blade unit becomes an important factor for limiting the safety of the unit.
Furthermore, during typhoon occurrence, the yaw system of the conventional unit must be in a normal working state to achieve adaptation to changes in the wind direction to reduce the load of the unit. Due to the influence of typhoon factors, the power supply interruption of a power grid system is easy to occur in a wind power plant during the occurrence of typhoon, so that in the design of a conventional upwind anti-typhoon wind generating set, the cost must be increased to equip the set with a backup power supply, and the normal work of a yaw system of the set is ensured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a safe and reliable's two blade downwind anti-typhoon wind generating set, aim at solving conventional three leaf machine group blade peak and bear the wind speed too high to and the too high problem of unit configuration backup power cost.
In order to achieve the above object, the present invention provides a technical solution: the utility model provides a two blades anti typhoon wind generating set of downwind, wind generating set adopts the design of downwind, and wind is wheel hub again through wind generating set's cabin afterbody promptly, wherein, be formed with the supply blade of two symmetries on the wheel hub and connect the flange port of installation usefulness, the blade has two to be two flange port departments that 180 symmetries were installed on this wheel hub.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
1. compare wind direction wind generating set on conventional three-blade, through the utility model discloses a two blade design can realize that fan blade all is in the horizontality during typhoon takes place, avoids having the directional high altitude of blade to bear higher typhoon load to effectively reduce the load under the unit typhoon condition, improve the anti typhoon reliability of unit, and to the feasibility of bigger impeller diameter development.
2. By adopting the downwind design, the self-adaptive passive yawing wind alignment of the unit is realized, the dependence of the upwind unit on a backup power supply is avoided, the configuration of the backup power supply in a typhoon mode can be reduced, and the comprehensive cost of the unit is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a two-blade downwind anti-typhoon wind generating set.
FIG. 2 is a schematic diagram of a conventional three-blade wind direction assembly.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in fig. 1, the two-blade downwind anti-typhoon wind turbine generator system provided by this embodiment adopts a downwind design, that is: the overall performance (structural strength, load characteristics and power generation performance) of the wind generating set and the wind control strategy of the engine room 3 are designed according to the fact that wind passes through the tail portion of the engine room 3 and then reaches the hub 1, wherein two symmetrical flange ports for connecting and installing the blades 2 are formed on the hub 1, and two pieces of the blades 2 are symmetrically installed at the two flange ports on the hub 1 in an angle of 180 degrees. During normal operating period, realize through power supply control that wind direction and 3 contained angles in cabin are 180 operations, the typhoon mode is under the unpowered power supply condition, and unit blade 2 is in feathering (paddle 90 degrees) state, through the adaptation of wind turbine generator system to typhoon load (direction), realizes yawing passively, ensures that the bearing platform wind load that wind turbine generator system was born is minimum.
Compared with the prior art, the utility model discloses a through with wind generating set change into ingenious two blade designs of downwind by the design of conventional upwind three blades, realize that during typhoon takes place, fan blade all is in the horizontality, avoids having the directional high altitude of blade (as shown in fig. 2) to bear higher typhoon load, improves the unit security. In addition, the impeller downwind design is utilized, the unit can adaptively and passively yaw according to the wind direction change, the dependence of an upwind unit on a back-up power supply is avoided, and the comprehensive cost of the unit is reduced.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. The utility model provides a two blade downwind anti-typhoon wind generating set, wind generating set adopts the design of downwind, and wind is wheel hub, its characterized in that again through wind generating set's cabin afterbody promptly: two symmetrical flange ports for connecting and installing the blades are formed on the hub, and the two blades are symmetrically installed at the two flange ports on the hub by 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922310152.2U CN211623614U (en) | 2019-12-20 | 2019-12-20 | Two-blade downwind anti-typhoon wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922310152.2U CN211623614U (en) | 2019-12-20 | 2019-12-20 | Two-blade downwind anti-typhoon wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211623614U true CN211623614U (en) | 2020-10-02 |
Family
ID=72630727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922310152.2U Active CN211623614U (en) | 2019-12-20 | 2019-12-20 | Two-blade downwind anti-typhoon wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211623614U (en) |
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2019
- 2019-12-20 CN CN201922310152.2U patent/CN211623614U/en active Active
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