CN202673574U - Grid-connected wind power generation system - Google Patents
Grid-connected wind power generation system Download PDFInfo
- Publication number
- CN202673574U CN202673574U CN201220277782XU CN201220277782U CN202673574U CN 202673574 U CN202673574 U CN 202673574U CN 201220277782X U CN201220277782X U CN 201220277782XU CN 201220277782 U CN201220277782 U CN 201220277782U CN 202673574 U CN202673574 U CN 202673574U
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- wind
- cabin
- power generation
- generator
- powered electricity
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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 a grid-connected wind power generation system which comprises a wind turbine generator, a transformer and a power grid. The wind turbine generator comprises a wind wheel, a cabin, a tower and a wind turbine generator foundation, the cabin is arranged on the tower, the wind wheel comprises blades and a hub, a transmission system, a yawing system, a hydraulic system, a brake system and a power generator are arranged in the cabin, the transmission system comprises a spindle, a step-up gear box and a coupling, and the hub is fixedly connected with the spindle. A frequency converter is arranged in the tower and is connected with a control protector on the outside of the tower by a line, the power generator is connected with the power grid by the frequency converter and the transformer, a grounding system is arranged on the periphery of the wind turbine generator foundation, and a wind sensor is arranged on the rear upper side of the cabin and is connected with the yawing system. The grounding system capable of preventing lightning stroke is arranged on the periphery of the wind turbine generator foundation, so that the lightning stroke can be effectively prevented, the service life of the grid-connected wind power generation system is prolonged. Besides, the power generator converts mechanical energy into electric energy, and the electric energy is connected into the power grid to be supplied to users.
Description
One, technical field:
The utility model provides a kind of Intelligent generating set, particularly relates to a kind of the Shunt-connected Wind Power Generation System.
Two, background technique:
The Shunt-connected Wind Power Generation System refers to that wind-powered electricity generation unit and electrical network link, and carries active power to electrical network, absorbs simultaneously or send the wind-power generating system of wattless power.The function of grid type wind power generating set is to convert the kinetic energy in the wind to mechanical energy, again mechanical energy is converted to electric energy, is transported in the electrical network.Basic demand to the grid type wind power generating set is at local wind regime, can long-term safety move under weather and the electrical network condition, obtain maximum annual electricity generating capacity and minimum cost of electricity-generating, the speed of wind and direction are constantly to change, sometimes even very fierce, and cube being directly proportional of power and wind speed, because the wind power generating set all parts is bearing alternate load at any time, it is the principal element that affects unit durability that fatigue strength and thunder and lightning attack, therefore in the Shunt-connected Wind Power Generation System, the wind-powered electricity generation unit is to material, structure, technique and control unit have all proposed very high requirement.
Three, model utility content:
Technical problem to be solved in the utility model is: a kind of effectively the Shunt-connected Wind Power Generation System of Lightning proof, long service life is provided.
The utility model is that the technological scheme that the technical solution problem is taked is:
A kind of the Shunt-connected Wind Power Generation System, comprise wind-powered electricity generation unit, transformer and electrical network, described wind-powered electricity generation unit links by transformer and electrical network, described wind-powered electricity generation unit comprises wind wheel, cabin, pylon and wind-powered electricity generation unit basis, described cabin is arranged on above the pylon, described wind wheel comprises blade and wheel hub, be provided with transmission system, yaw system, hydraulic system, braking system and generator in the described cabin, described transmission system comprises main shaft, step-up gear and shaft coupling, described wheel hub is fixedly connected with main shaft, and shaft coupling drives generator work; Be provided with frequency variator in the described pylon, generator links by frequency variator and transformer and electrical network; Described frequency variator links by control protective unit set outside circuit and the pylon; Be provided with grounded system around the described wind-powered electricity generation unit basis.
Described braking system is arranged on the high speed output shaft of step-up gear.
The back upper place in described cabin is provided with wind transducer, and wind transducer is connected with yaw system.
Described wind wheel is three blade wind wheels.
Good effect of the present utility model is as follows:
1, wind wheel of the present utility model is the critical component that obtains energy in the wind, formed by blade and wheel hub, blade has aerodynamic profile, under airflow function, produce moment and drive the wind wheel rotation, by wheel hub moment of torsion is input to transmission system, wherein three blade wind wheels are because its good stability plays good wind energy effect at the wind-powered electricity generation unit.
2, be provided with the critical pieces such as transmission system, yaw system, hydraulic system, braking system and generator in the cabin of the present utility model, the bottom is connected with pylon, and pylon supports the cabin and reaches needed height.
3, wind-powered electricity generation unit of the present utility model basis is reinforced concrete construction, and the grounded system of Lightning proof is set around it, and effectively Lightning proof increases the service life.
4, transmission system of the present utility model comprises main shaft, step-up gear and shaft coupling, wheel hub is fixedly connected with main shaft, and the moment of torsion of wind wheel is passed to step-up gear, and shaft coupling drives the generator rotation, generator changes into electric energy with mechanical energy again, is connected to the grid for the user.
5, because wind direction often changes, if wind wheel swept surface and wind direction out of plumb, then not only power stage reduces, and the load of bearing is more abominable.The set yaw system of the utility model is exactly that variation, the driving cabin of following the tracks of wind direction rotate around the tower center line, and yaw system is connected with wind transducer, makes wind wheel swept surface and wind direction keep vertical.
6, hydraulic system of the present utility model mainly is that braking system is arranged on the high speed output shaft of step-up gear, can make the wind wheel stall for step-up gear and braking system provide necessary driving pressure.
7, generator of the present utility model is converted to electric energy with the mechanical energy of wind wheel, and is middle for the user by directly being connected to the grid behind frequency variator and the transformer.
Four, description of drawings:
Fig. 1 is structural representation of the present utility model.
Five, embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
Referring to Fig. 1, a kind of the Shunt-connected Wind Power Generation System, comprise the wind-powered electricity generation unit, transformer 15 and electrical network 17, described wind-powered electricity generation unit links by transformer 15 and electrical network 17, the wind-powered electricity generation unit comprises three blade wind wheels, cabin 7, pylon 11 and wind-powered electricity generation unit basis 14, cabin 7 is arranged on above the pylon 11, three blade wind wheels comprise blade 1 and wheel hub 2, be provided with transmission system in the cabin 7, yaw system 9, hydraulic system 5, braking system 6 and generator 8, transmission system comprises main shaft 3, step-up gear 4 and shaft coupling, wheel hub 2 is fixedly connected with main shaft 3, and shaft coupling drives generator 8 work; Be provided with frequency variator 12 in pylon 11, generator 8 links by frequency variator 12 and transformer 15 and electrical network 17, and frequency variator 12 links by the set control protective unit 13 in circuit and pylon 11 outsides, and wind-powered electricity generation unit basis 14 is provided with grounded system 16 on every side; Braking system 6 is arranged on the high speed output shaft of step-up gear 4, the cabin, and 7 back upper place is provided with wind transducer 10, and wind transducer 10 is connected with yaw system 9.
The wind-powered electricity generation unit basis 14 of this model utility is reinforced concrete construction, the grounded system 16 of Lightning proof is set around it, effective Lightning proof, increase the service life, generator 8 is converted to electric energy with the mechanical energy of three blade wind wheels, directly is connected to the grid in 17 for the user by frequency variator 12 and transformer 15 are rear.
Claims (4)
1. the Shunt-connected Wind Power Generation System, comprise the wind-powered electricity generation unit, transformer (15) and electrical network (17), described wind-powered electricity generation unit links by transformer (15) and electrical network (17), described wind-powered electricity generation unit comprises wind wheel, cabin (7), pylon (11) and wind-powered electricity generation unit basis (14), described cabin (7) is arranged on above the pylon (11), it is characterized in that: described wind wheel comprises blade (1) and wheel hub (2), described cabin is provided with transmission system in (7), yaw system (9), hydraulic system (5), braking system (6) and generator (8), described transmission system comprises main shaft (3), step-up gear (4) and shaft coupling, described wheel hub (2) is fixedly connected with main shaft (3), and shaft coupling drives generator (8) work; Be provided with frequency variator (12) in the described pylon (11), generator (8) links with electrical network (17) by frequency variator (12) and transformer (15); Described frequency variator (12) links by control protective unit (13) set outside circuit and the pylon (11); Described wind-powered electricity generation unit basis (14) is provided with grounded system (16) on every side.
2. the Shunt-connected Wind Power Generation System according to claim 1, it is characterized in that: described braking system (6) is arranged on the high speed output shaft of step-up gear (4).
3. the Shunt-connected Wind Power Generation System according to claim 1, it is characterized in that: the back upper place of described cabin (7) is provided with wind transducer (10), and wind transducer (10) is connected with yaw system (9).
4. the Shunt-connected Wind Power Generation System according to claim 1, it is characterized in that: described wind wheel is three blade wind wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220277782XU CN202673574U (en) | 2012-06-13 | 2012-06-13 | Grid-connected wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220277782XU CN202673574U (en) | 2012-06-13 | 2012-06-13 | Grid-connected wind power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673574U true CN202673574U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220277782XU Expired - Fee Related CN202673574U (en) | 2012-06-13 | 2012-06-13 | Grid-connected wind power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821673A (en) * | 2013-11-25 | 2014-05-28 | 华北电力大学（保定） | Fan gearbox vibration sensor collocation method based on structural analysis |
-
2012
- 2012-06-13 CN CN201220277782XU patent/CN202673574U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821673A (en) * | 2013-11-25 | 2014-05-28 | 华北电力大学（保定） | Fan gearbox vibration sensor collocation method based on structural analysis |
| CN103821673B (en) * | 2013-11-25 | 2016-06-22 | 华北电力大学（保定） | A kind of gear case of blower vibrating sensor collocation method based on structural analysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130613 |