CN102305186A - Multi-rotor wind generating system - Google Patents
Multi-rotor wind generating system Download PDFInfo
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- CN102305186A CN102305186A CN201110240559A CN201110240559A CN102305186A CN 102305186 A CN102305186 A CN 102305186A CN 201110240559 A CN201110240559 A CN 201110240559A CN 201110240559 A CN201110240559 A CN 201110240559A CN 102305186 A CN102305186 A CN 102305186A
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- wind
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- energy conversion
- generating system
- wind energy
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a multi-rotor wind generating system, which comprises a lower tower 1, a rotary driving device 3, wind turbines, an upper tower 2, beams 6 and a cabin frame 7, wherein the rotary driving device is arranged between the upper tower and the lower tower; 2 to 50 beams are arranged; beams positioned on two sides of the upper tower are connected to the upper tower through one end of each beam in a symmetrical or staggered manner, and the other end of each beam is connected with the top end of the upper tower through a rope and/or a rod 8, or connected with other beams first and then connected with the top end of the upper tower; the cabin frame is arranged on the upper tower; the wind turbines are arranged on the top of the upper tower, the beams or/and the cabin frame; each wind turbine comprises a wind wheel 4 and a cabin 5; and 2 to 100 wind turbines are arranged. The multi-rotor wind generating system has the advantages that: blades have long service life, the occupied area is small, the installation and maintenance cost is effectively reduced, the maintenance cost is low, the reliability of the system is high, the application range is wide, a slewing bearing or a rotary driving device in the cabin is eliminated, and the bearing capacity of the beams is high.
Description
Technical field
The invention belongs to field of wind energy utilization, relate to a kind of many rotors wind-power generating system.
Background technique
Along with worldwide energy crisis and global environmental pollution aggravation, many countries all pay attention to research, the development and utilization of clean renewable energy sources more.Whole world wind energy timeliness points out; It is more ripe that wind generating technology is compared other renewable energy technologies, and its efficient is also higher, and industrial prospect is best; Its development and use growth rate is far above conventional energy resource, and wind generating technology is one of renewable energy technologies with fastest developing speed in the world.
Wind wheel is the core component that wind energy converts mechanical energy into, so the performance of the performance of blade decision wind-powered electricity generation unit, and the safe and stable operation of blade in phase projected life is most important.The blade of horizontal axis wind-driven generator is subjected to the comprehensive function of horizontal thrust, inertial force and gravity in rotary course.Be subjected to influence by the wind shear, the size of horizontal thrust changes all the time, still is that transmission system and pylon all produce big alternate load to blade; The direction of inertial force changes at any time; Gravity produces an alternate load with the speed same frequency at root of blade.Above-mentioned three alternate loads and consequent vibration are the main causes that blade destroys.
The wind-driven generator single-machine capacity is done bigger and bigger, and relatively more consistent in the world at present view is: single-machine capacity is big more, and cost is low more, and its reason is to it is generally acknowledged that wind energy conversion system power is big more, and required wind energy conversion system number is few more, and the parts that need repairing are few more, and cost is low more.
In fact; Owing to be subjected to the rubbing action on building and ground; Increase along with height; Wind speed increases gradually; This phenomenon is referred to as wind shear, and when blade was in diverse location in plane of rotation, wind speed can be variant; Thereby the size of horizontal thrust of bearing at plane of rotation Vertical direction upper blade and flywheel moment can be different, cause blade to receive fatigue load.Simultaneously, gravity also can produce alternate load on blade.Therefore, blade is long more, and weight is heavy more, is subjected to the influence of wind shear and gravitational load big more, and the alternate load that causes blade to bear is big more, and blade destroys more easily.At present, the report that blades of large-scale wind driven generator destroys is also rare, mainly is that problem does not also expose fully because the installation time is short, after the several years, and perhaps can the large size outburst.In case go wrong; Wind energy turbine set causes economic loss owing to shutting down, having a power failure, and counts maintenance, lifting and replacing component, the transportation of transfiniting again in, repeats installation or the like cost, and blower fan is installed in remote or ungetable area mostly in addition; Lifting dismounting difficulty is big, and that pays at last is costly.Therefore, reduce though the manufacture cost of wind-powered electricity generation unit increases with power, consider the expenses such as maintenance in later stage, its overall cost can rise on the contrary.On the other hand, its length of blade of large windpower generating unit will reach 60-70m, and land transportation, installation be difficulty very, and the crane capacity that usefulness is installed will be above 1200-1400t, and a lot of areas do not possess this condition, thereby have limited the use of large windpower generating unit.
Summary of the invention
The objective of the invention is provides a kind of many rotors wind-power generating system for needs that satisfy many rotors power generation system and the deficiency that overcomes prior art.
Technological scheme of the present invention is summarized as follows:
A kind of many rotors wind-power generating system; Comprise bottom pylon 1; Device for revolving and driving 3 and wind energy conversion system; Also comprise top pylon 2; Beam 6 and cabin frame 7; Device for revolving and driving is arranged between top pylon and the bottom pylon; Beam is 2-50; The beam that is positioned at pylon both sides, top through beam end symmetry or be cross-linked on the pylon of top; The other end of beam is through rope and/or bar 8 is connected with the top of top pylon or first the connection again with other beam is connected with the top of top pylon; The cabin frame is arranged on the pylon of top; Wind energy conversion system is arranged on the top of top pylon; Beam is or/and on the frame of cabin; Wind energy conversion system comprises wind wheel 4 and cabin 5, and wind energy conversion system is 2-100.
Beam is square tube, pipe, I-steel, channel-section steel, square steel, round steel or angle steel.
Beam can also be a truss structure, and the rod member of forming truss is angle steel, I-steel, channel-section steel, square tube and/or pipe.
The surface of beam scribbles rust proof paint or zinc coat is arranged.
Beam and top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
The angle of beam and top pylon is 30 °～90 °.
The power of wind energy conversion system is preferred 0.5～500kW, preferably 2～100kW.
Advantage of the present invention and good effect are:
(1) leaf longevity is long.A plurality of medium and small wind energy conversion systems are installed on the pylon of top of the present invention, and its blade is short, on short transverse, is subjected to influence by the wind shear little, and the fatigue load of short blade is little, and the manufacturing technology of short blade is ripe simultaneously, stable performance, thereby the life-span of blade is long.
(2) floor space is little.Consider the influence of wake flow, the common wind-powered electricity generation unit of prior art when mounted will be at intervals, and a plurality of wind energy conversion systems of the present invention on a pylon only need be considered influencing each other of wind energy conversion system side direction, have saved floor space greatly.Simultaneously, the wake effect of medium and small unit can be arranged more the present invention apart from weak point in wind energy turbine set, help improving the total installation of generating capacity of wind energy turbine set, improves the economic benefit of wind energy turbine set.
(3) Du Te mounting type.Top of the present invention pylon is connected with beam; When normal the use, as the mounting structure of wind energy conversion system, beam can be used as and hangs support when installing and keep in repair; Do not need or only the small-sized lifting of needs machinery just can carry out equipment installation and dismounting, effectively reduce the installation and maintenance cost.
(4) maintenance cost is low.Be mainly reflected in the following aspects: the one, owing to adopt medium and small wind energy conversion system, its blade is not only short but also in light weight, convenient transportation is easy with replacing; The 2nd, the scale high efficiency is beneficial to integrated and modularization and scale, reduces production costs, and increases economic efficiency; The 3rd, medium and small wind energy conversion system technology maturation, component low price.
(5) good reliability of system.The present invention is the mode of on a pylon, arranging a plurality of wind energy conversion systems owing to what adopt, when single or certain several wind energy conversion system break down, can not exert an influence to other wind energy conversion systems, and system still can keep running well basically.The wind energy conversion system number of wind energy turbine set is more, and single wind energy conversion system breaks down very little to the influence of system and electrical network.
(6) applied range.Compare with the large windpower generating unit with large-scale, the present invention is owing to adopt medium and small wind energy conversion system, no matter be to the requirement of wind field condition, geographical position or floor space will be low many, expanded the application area of native system greatly.
(7) cancelled floating bearing or the device for revolving and driving in the cabin.Since on top pylon and bottom pylon intermediate arrangement device for revolving and driving, realized the integral body revolution of top pylon, beam and wind energy conversion system, so floating bearing or device for revolving and driving need be set in the cabin of single wind energy conversion system.
(8) beam is stressed good.Because an end of beam is connected with the top pylon, the other end makes beam be connected with the top of pylon through rope or bar, or the Liang Liang connection is connected with the top of pylon again, the stressed of beam is greatly improved, thereby has reduced the manufacture cost of beam.
Description of drawings
Fig. 1 is a kind of plan view of many rotors wind-power generating system.
Fig. 2 is a kind of plan view of many rotors wind-power generating system second way.
Fig. 3 is a kind of schematic top plan view of many rotors wind-power generating system.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description, it is descriptive below detailing, and is not determinate, can not limit protection scope of the present invention.
The present invention is further illustrated below in conjunction with accompanying drawing.
A kind of many rotors wind-power generating system; Comprise bottom pylon 1; Device for revolving and driving 3 and wind energy conversion system; Also comprise top pylon 2; Beam 6 and cabin frame 7; Device for revolving and driving is arranged between top pylon and the bottom pylon; Be used for realizing upper column is set a roof beam in place; The integral body revolution of cabin frame and wind energy conversion system; Beam is 2-50; The beam that is positioned at pylon both sides, top through beam end symmetry or be cross-linked on the pylon of top; The other end of beam is through rope and/or bar 8 is connected with the top of top pylon or first the connection again with other beam is connected with the top of top pylon; The cabin frame is arranged on the pylon of top; Wind energy conversion system is arranged on the top of top pylon; Beam is or/and on the frame of cabin; Wind energy conversion system comprises wind wheel 4 and cabin 5, and wind energy conversion system is 2-100.
Beam is square tube, pipe, I-steel, channel-section steel, square steel, round steel or angle steel.
Beam can also be a truss structure, and the rod member of forming truss is angle steel, I-steel, channel-section steel, square tube and/or pipe.
The surface of beam scribbles rust proof paint or zinc coat is arranged.
Beam and top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
The angle of beam and top pylon is 30 °～90 °.
The power of wind energy conversion system is preferred 0.5～500kW, preferably 2～100kW.
Working principle of the present invention is:
When wind speed reached the startup wind speed of wind energy conversion system, wind energy conversion system began rotation work, the electric energy of generation change into electrical network with frequently, behind the electricity of homophase, be connected on the electrical network and generate electricity by way of merging two or more grid systems, or be transported to energy-storage system and carry out energy storage.When change of the wind, the wind vane in the system will turn round signal and send to device for revolving and driving, under hydraulic pressure or motor effect, drive superstructure and turn round, and turn on the wind direction direction always, reach the purpose to wind.When the recording anemometer in the system detected wind speed above rated wind speed, system sent signal and gives device for revolving and driving, under hydraulic pressure or motor effect, drove superstructure and went off course.
Claims (8)
1. rotor wind-power generating system more than a kind; Comprise bottom pylon (1); Device for revolving and driving (3) and wind energy conversion system; It is characterized in that also comprising top pylon (2); Beam (6) and cabin frame (7); Said device for revolving and driving is arranged between said top pylon and the said bottom pylon; Said beam is 2-50; The beam that is positioned at pylon both sides, top through beam end symmetry or be cross-linked on the pylon of said top; The other end of beam is through rope and/or bar (8) is connected with the top of said top pylon or first the connection again with other beam is connected with the top of said top pylon; Said cabin frame is arranged on the pylon of said top; Said wind energy conversion system is arranged on the top of said top pylon; Beam is or/and on the frame of cabin; Said wind energy conversion system comprises wind wheel (4) and cabin (5), and said wind energy conversion system is 2-100.
2. a kind of many rotors wind-power generating system according to claim 1 is characterized in that said beam is square tube, pipe, I-steel, channel-section steel, square steel, round steel or angle steel.
3. a kind of many rotors wind-power generating system according to claim 1 is characterized in that said beam is a truss structure, and the rod member of forming truss is angle steel, I-steel, channel-section steel, square tube and/or pipe.
4. a kind of many rotors wind-power generating system according to claim 1 is characterized in that the surface of said beam scribbles rust proof paint or zinc coat is arranged.
5. a kind of many rotors wind-power generating system according to claim 1, it is characterized in that beam and top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
6. a kind of many rotors wind-power generating system according to claim 1, the angle that it is characterized in that said beam and top pylon are 30 °～90 °.
7. a kind of many rotors wind-power generating system according to claim 1, the power that it is characterized in that said wind energy conversion system is 0.5～500kW.
8. a kind of many rotors wind-power generating system according to claim 7, the power that it is characterized in that said wind energy conversion system is 2～100kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240559A CN102305186A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240559A CN102305186A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind generating system |
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| Publication Number | Publication Date |
|---|---|
| CN102305186A true CN102305186A (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110240559A Pending CN102305186A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind generating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355345A (en) * | 2017-09-05 | 2017-11-17 | 深圳市大众新源节能科技有限公司 | A kind of hybrid power plant |
| CN107448356A (en) * | 2017-09-05 | 2017-12-08 | 深圳市大众新源节能科技有限公司 | A kind of combined generating device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030168864A1 (en) * | 2002-03-08 | 2003-09-11 | William Heronemus | Offshore wind turbine |
| CN2663683Y (en) * | 2003-12-01 | 2004-12-15 | 杜振义 | Multi-paddle wind mill generator |
| GB2443886A (en) * | 2006-11-20 | 2008-05-21 | Michael Torr Todman | Multi rotor wind turbine |
| CN100406721C (en) * | 2002-02-14 | 2008-07-30 | 艾劳埃斯·乌本 | Wind energy turbine |
| CN101813056A (en) * | 2009-09-19 | 2010-08-25 | 杜振义 | Multi-propeller wind driven generator |
| WO2010098813A1 (en) * | 2009-02-28 | 2010-09-02 | Ener2 Llc | Wind energy device |
-
2011
- 2011-08-19 CN CN201110240559A patent/CN102305186A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406721C (en) * | 2002-02-14 | 2008-07-30 | 艾劳埃斯·乌本 | Wind energy turbine |
| US20030168864A1 (en) * | 2002-03-08 | 2003-09-11 | William Heronemus | Offshore wind turbine |
| CN2663683Y (en) * | 2003-12-01 | 2004-12-15 | 杜振义 | Multi-paddle wind mill generator |
| GB2443886A (en) * | 2006-11-20 | 2008-05-21 | Michael Torr Todman | Multi rotor wind turbine |
| WO2010098813A1 (en) * | 2009-02-28 | 2010-09-02 | Ener2 Llc | Wind energy device |
| CN101813056A (en) * | 2009-09-19 | 2010-08-25 | 杜振义 | Multi-propeller wind driven generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355345A (en) * | 2017-09-05 | 2017-11-17 | 深圳市大众新源节能科技有限公司 | A kind of hybrid power plant |
| CN107448356A (en) * | 2017-09-05 | 2017-12-08 | 深圳市大众新源节能科技有限公司 | A kind of combined generating device |
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Application publication date: 20120104 |