CN201425001Y - 1.5-MW permanent magnet direct-drive wind-driven power generator unit - Google Patents
1.5-MW permanent magnet direct-drive wind-driven power generator unit Download PDFInfo
- Publication number
- CN201425001Y CN201425001Y CN2009200760127U CN200920076012U CN201425001Y CN 201425001 Y CN201425001 Y CN 201425001Y CN 2009200760127 U CN2009200760127 U CN 2009200760127U CN 200920076012 U CN200920076012 U CN 200920076012U CN 201425001 Y CN201425001 Y CN 201425001Y
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- Prior art keywords
- permanent magnet
- synchronous generator
- low
- inverter
- speed
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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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- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The utility model relates to a 1.5-MW permanent magnet direct-drive wind-driven power generator unit which comprises a wind wheel, a low-speed permanent magnet synchronous generator, a controller andan inverter, wherein the wind wheel is in transmission connection with the low-speed permanent magnet synchronous generator; the low-speed permanent magnet synchronous generator is connected with theinverter; and the controller is connected with the low-speed permanent magnet synchronous generator and the inverter. Compared with the prior art, the utility model has the advantages of high reliability, low failure rate, high equipment availability, strong environment adaptability, high wind energy utilization and adjustable power factor of the unit and can carry out full power inverter internet.
Description
Technical field
The utility model relates to wind power generating set, particularly relates to a kind of 1.5MW permanent magnet direct-driving aerogenerator group.
Background technique
The wind wheel of existing wind power generating set is connected with generator by gear-box usually, and gear-box is easy to cause mechanical disorder, and reliability is low, often needs shutdown maintenance, and Utilization ratio is not high; And the general also supporting oil lubricating system that has of gear-box, oil lubricating system also very easily produces mechanical disorder to ambient temperature sensitivity relatively, and adaptive capacity is not strong.
Summary of the invention
Technical problem to be solved in the utility model is exactly to provide a kind of 1.5MW permanent magnet direct-driving aerogenerator group for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of 1.5MW permanent magnet direct-driving aerogenerator group, it is characterized in that, comprise wind wheel, permanent magnet low-speed synchronous generator, controller and inverter, described wind wheel and permanent magnet low-speed synchronous generator are in transmission connection, described permanent magnet low-speed synchronous generator is connected with inverter, and described controller is connected with permanent magnet low-speed synchronous generator and inverter.
Described permanent magnet low-speed synchronous generator comprises rotor and stator, and described rotor is connected with wind wheel is coaxial, is arranged with the three-phase winding coil on the described stator.
Described inverter is connected with three-phase winding coil on the permanent magnet low-speed synchronous generator stator.
Described wind wheel is three blade wind wheels.
The axle of described permanent magnet low-speed synchronous generator rotor is a hollow shaft.
Described permanent magnet low-speed synchronous generator is the rare earth permanent magnet synchronous generator, and its rated power is 1.5MW, and working speed is 12～20r/min.
Described three-phase winding coil is continuous winding coil.
Compared with prior art, the utlity model has following advantage:
1) reliability height, rate of fault is low, the Utilization ratio height:
Simple in structure, rotor shaft directly drives generator, and non-gear box does not have the slip ring of doubly fed machine etc. yet, so the problem that gear-box and rotor ring etc. cause is solved;
2) adaptive capacity to environment is strong:
The utility model is not owing to there is step-up gear, thus do not need " oil lubricating system ", therefore strong to the high and low temperature environment adaptive capacity;
3) wind energy utilization height:
Permanent magnet direct-drive formula machine and dual-feed asynchronous wind power generator than in the high wind speed district the two power coefficient CP value basic identical, then higher in low wind speed district permanent magnet direct-drive formula unit CP value; Comprehensive analysis permanent magnet direct-drive wind-force generating machine can increase by 10%～20% than the gross generation of induction generator; The running cost compared doubly fed machine then hangs down 15%～20%;
4) power factor of unit can be adjusted, can full power inversion online.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of 1.5MW permanent magnet direct-driving aerogenerator group, comprise wind wheel 1, permanent magnet low-speed synchronous generator 2, controller 3 and inverter 4, described wind wheel 1 is in transmission connection with permanent magnet low-speed synchronous generator 2, described permanent magnet low-speed synchronous generator 2 is connected with inverter 4, and described controller 3 is connected with permanent magnet low-speed synchronous generator 2 and inverter 4.
Described permanent magnet low-speed synchronous generator 2 comprises rotor and stator, and described rotor and 1 coaxial connection of wind wheel are arranged with the three-phase winding coil on the described stator; Described inverter 4 is connected with three-phase winding coil on the permanent magnet low-speed synchronous generator stator; Described wind wheel 1 is three blade wind wheels; The axle of described permanent magnet low-speed synchronous generator rotor is a hollow shaft; Described permanent magnet low-speed synchronous generator 2 is the rare earth permanent magnet synchronous generator, and its rated power is 1.5MW, and working speed is 12～20r/min; Described three-phase winding coil is continuous winding coil.
Feature of the present utility model is three blade horizontal axis, uses the permanent magnet low-speed synchronous generator, does not have step-up gear between wind wheel and generator, rotor shaft directly with permanent magnet low-speed synchronous generator rotor coaxial connect of rated speed less than 30r/min.Blower fan carries out power adjustments by changing the blade pitch angle.
The electric current that aerogenerator stator three-phase winding coil produces through the inverter unsteady flow for being connected to the grid with mains frequency, voltage, output current that phase place is identical.
The magneto alternator of permanent magnet direct-drive type Large-scale Wind Turbines is a low-speed generator, therefore rotor shaft can directly only be coaxial connection of rare earth permanent magnet synchronous generator rotor of 20r/min with maximum (top) speed, does not need to add step-up gear as high-speed asynchronous power generator.When the rated wind speed of 12m/s, just can reach rated power, the threephase AC of voltage rating 690V, the via controller rectification, again through the inverter unsteady flow for being connected to the grid with mains frequency, voltage, output current that phase place is identical.Inversion system carries out the maximal power tracing of pulsewidth adjustment type to wind wheel.
Important technological parameters of the present utility model:
Rotor diameter 71m
The number of blade 3 blades
The blade material composite material
Leaf weight 2.95T
Incision wind speed 3.5m/s
Rated wind speed 12m/s
Work wind speed range 3m/s～25m/s
Cut-out wind speed 25m/s
The anti-strong wind ability is greater than 60m/s (specific targets are treated further research)
Swept area 3957m2
Wind energy utilization 〉=0.45
Mode of speed regulation becomes slurry and regulates
Pylon altitude circle tubular 70m
Generator basic pattern rare earth permanent magnet synchronous generator
Rated power 1500kW
Peak output 1650KVA
Rated speed 20r/min
Working speed scope 12-20r/min
Motor highest frequency 18Hz
Motor output voltage wire voltage 600VAC-750VAC
Generator efficiency 〉=0.98
Important technological parameters meets the regulation of NBS (or IEC standard).Operating ambient temperature is-30 ℃ to+40 ℃; 20 years projected lives; When below rated wind speed, moving, complete machine maximal wind-energy utilization factor＞0.45; Lightning Protection Design meets the IEC1024-I standard.Wind wheel, generator, controller, inverter critical piece average life is 20 years.
Structural feature of the present utility model:
Generator is a hollow shaft, and the attendant can enter impeller boss by hollow shaft from the cabin during shutdown, provides convenience to the maintenance of wind wheel inner body.
Generator adopts continuous winding, and turn-to-turn does not have joint, and every phase winding can not interrupt because wiring point is arranged, and the manufacturing deficiency of having avoided winding to connect has been guaranteed the contactless impedance of high quality of copper cash insulation, has avoided the corrosion of susceptibility-to-corrosion material and environment.
Generator adopts special fractional-slot, has significantly reduced starting torque, has reduced harmonic wave and tooth magnetic harmonic wave.Magnetic Circuit Design has guaranteed very high power factor, reaches more than 0.99.
Security level is IP54.Generator efficiency 〉=0.98.
Convenient transportation, the motor maximum diameter is 3.5 meters, meets Chinese road transport method, and abroad introduction unit diameters are very thick not resemble some, and the thinnest has also surpassed 4.7 meters, does not meet Chinese road transport method.
Finish the debugging more than 90% in the factory, comprise the online inverter, the uniting and adjustment of controller and displacement system have reduced the workload of field adjustable.
The characteristics of the utility model set grid-connection:
Adapted three level online inverter, total power inversion online. The power factor of unit can be adjusted, when dispatching from the factory Be generally 1. Low voltage ride-through capability is arranged, if electrical network breaks down (such as short circuit) Wind turbine can keep with Electrical network connects and reached for 3 seconds, and can make suitable support to line voltage by input current.
When start-up routine moved, wind energy conversion system was connected with electrical network with zero current condition, and regulatable mode is moved To normal power state.
Claims (7)
1. 1.5MW permanent magnet direct-driving aerogenerator group, it is characterized in that, comprise wind wheel, permanent magnet low-speed synchronous generator, controller and inverter, described wind wheel and permanent magnet low-speed synchronous generator are in transmission connection, described permanent magnet low-speed synchronous generator is connected with inverter, and described controller is connected with permanent magnet low-speed synchronous generator and inverter.
2. a kind of 1.5MW permanent magnet direct-driving aerogenerator group according to claim 1, it is characterized in that, described permanent magnet low-speed synchronous generator comprises rotor and stator, and described rotor is connected with wind wheel is coaxial, is arranged with the three-phase winding coil on the described stator.
3. a kind of 1.5MW permanent magnet direct-driving aerogenerator group according to claim 2 is characterized in that, described inverter is connected with three-phase winding coil on the permanent magnet low-speed synchronous generator stator.
4. a kind of 1.5MW permanent magnet direct-driving aerogenerator group according to claim 1 and 2 is characterized in that described wind wheel is three blade wind wheels.
5. a kind of 1.5MW permanent magnet direct-driving aerogenerator group according to claim 4 is characterized in that, the axle of described permanent magnet low-speed synchronous generator rotor is a hollow shaft.
6. a kind of according to claim 1 or 5 1.5MW permanent magnet direct-driving aerogenerator group is characterized in that described permanent magnet low-speed synchronous generator is the rare earth permanent magnet synchronous generator, and its rated power is 1.5MW, and working speed is 12～20r/min.
7. a kind of 1.5MW permanent magnet direct-driving aerogenerator group according to claim 6 is characterized in that described three-phase winding coil is continuous winding coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200760127U CN201425001Y (en) | 2009-06-09 | 2009-06-09 | 1.5-MW permanent magnet direct-drive wind-driven power generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200760127U CN201425001Y (en) | 2009-06-09 | 2009-06-09 | 1.5-MW permanent magnet direct-drive wind-driven power generator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425001Y true CN201425001Y (en) | 2010-03-17 |
Family
ID=42024447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200760127U Expired - Fee Related CN201425001Y (en) | 2009-06-09 | 2009-06-09 | 1.5-MW permanent magnet direct-drive wind-driven power generator unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425001Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348391A (en) * | 2013-08-06 | 2015-02-11 | 上海万德风力发电股份有限公司 | Distributed low-air speed permanent magnet direct-driven wind driven generator system |
| CN107968426A (en) * | 2016-10-20 | 2018-04-27 | 中国船舶重工集团海装风电股份有限公司 | A kind of dehumidifying temperature-rising method of doubly-fed wind turbine |
| CN113708360A (en) * | 2020-05-22 | 2021-11-26 | 新疆金风科技股份有限公司 | Direct-current wind generating set and permanent magnet semi-direct-drive direct-current power generation system |
-
2009
- 2009-06-09 CN CN2009200760127U patent/CN201425001Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348391A (en) * | 2013-08-06 | 2015-02-11 | 上海万德风力发电股份有限公司 | Distributed low-air speed permanent magnet direct-driven wind driven generator system |
| CN107968426A (en) * | 2016-10-20 | 2018-04-27 | 中国船舶重工集团海装风电股份有限公司 | A kind of dehumidifying temperature-rising method of doubly-fed wind turbine |
| CN113708360A (en) * | 2020-05-22 | 2021-11-26 | 新疆金风科技股份有限公司 | Direct-current wind generating set and permanent magnet semi-direct-drive direct-current power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20180609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |