CN102305172A - Multi-rotor wind generating system with fixing rods - Google Patents
Multi-rotor wind generating system with fixing rods Download PDFInfo
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- CN102305172A CN102305172A CN201110241019A CN201110241019A CN102305172A CN 102305172 A CN102305172 A CN 102305172A CN 201110241019 A CN201110241019 A CN 201110241019A CN 201110241019 A CN201110241019 A CN 201110241019A CN 102305172 A CN102305172 A CN 102305172A
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- wind
- pylon
- generating system
- energy conversion
- fixing rod
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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 invention discloses a multi-rotor wind generating system with fixing rods. The multi-rotor wind generating system comprises a lower tower 1, a rotary driving device 3, wind turbines, an upper tower 2, beams 6, a cabin frame 7 and inner fixing rods 8; the rotary driving device is arranged between the upper tower and the lower tower; beams positioned on two sides of the upper tower are fixedly connected to the upper tower through one end of each beam; one end of each inner fixing rod is connected with the middle part of each beam, and the other end of each inner fixing rod is connected with 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 with the fixing rods have the advantages that: blades have long service life, the occupied area is small, 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 beams bear small force.
Description
Technical field
The invention belongs to field of wind energy utilization, relate to a kind of many rotors wind-power generating system that has fixing rod.
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 receives the comprehensive function of horizontal thrust, inertial force and gravity in rotary course.Receive 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 receive the rubbing action on building and ground, along with the increase of 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, receives 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 to overcome the deficiency that exists in the existing technology, a kind of many rotors wind-power generating system that has fixing rod is provided.
Technological scheme of the present invention is summarized as follows:
A kind of many rotors wind-power generating system that has fixing rod comprises bottom pylon 1, device for revolving and driving 3 and wind energy conversion system, also comprises top pylon 2, beam 6, cabin frame 7 and internal fixation bar 8; Device for revolving and driving is arranged between top pylon and the bottom pylon; The beam that is positioned at pylon both sides, top is fixedly connected on the pylon of top through an end of beam, and an end of internal fixation bar is connected with the intermediate portion of beam, and the other end of internal fixation bar is connected with the top pylon; The cabin frame is arranged on the pylon of top; Wind energy conversion system is arranged on the top, beam of top pylon 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.
Can also comprise outer fixing bar 9, an end of outer fixing bar is connected with the outer end of beam, and the other end of outer fixing bar is connected with the top pylon.
One end of beam is that welding, riveted joint or bolt are connected with the fixed connection of top pylon.
The internal fixation bar is angle steel, I-steel, channel-section steel, square steel, round steel, square tube or pipe.
The outer fixing bar is angle steel, I-steel, channel-section steel, square steel, round steel, square tube or pipe.
Internal fixation bar and said beam and said top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
Outer fixing bar and said beam and said top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
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, receives 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 existing technology when mounted will be at intervals, and a plurality of wind energy conversion systems on a pylon of the present invention 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) mounting type of uniqueness.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) for the many rotors wind-power generating system that has the internal fixation bar that a plurality of wind energy conversion systems are installed on a pylon; Will be furnished with several wind energy conversion systems on its beam, beam not only will bear the gravitational load of self, also has the gravitational load of wind energy conversion system; And; Wind acts on beam and the wind wheel, produces horizontal thrust, also can act on the beam.
When beam is made cantilever structure, the stressed root that all acts at last of all of beam, the wall thickness that therefore needs during fabrication is thicker or size is bigger, and cost is higher.When beam was made hinged cable structure, joist support received the bending resistance of horizontal thrust not strong, caused beam to produce bigger Horizontal displacement easily.
The present invention has reduced cost owing to adopting the internal fixation bar or/and the slant-pull structure that the outer fixing bar forms has not only improved the stressed of beam greatly, and the entire system structural rigidity is big, and Security is good.
Description of drawings
Fig. 1 is a kind of schematic representation that has many rotors wind-power generating system of fixing rod.
Fig. 2 is a kind of schematic representation that has many rotors wind-power generating system second way of fixing rod.
Fig. 3 is a kind of schematic top plan view that has many rotors wind-power generating system of fixing rod.
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.
Below in conjunction with accompanying drawing the present invention is further described.
A kind of many rotors wind-power generating system that has fixing rod comprises bottom pylon 1, device for revolving and driving 3 and wind energy conversion system, also comprises top pylon 2, beam 6, cabin frame 7 and internal fixation bar 8; Device for revolving and driving is arranged between top pylon and the bottom pylon, be used to realize to upper column set a roof beam in place, the integral body revolution of cabin frame and wind energy conversion system, beam can select 2-50; Preferred 4-10, preferably 6, the beam that is positioned at pylon both sides, top is fixedly connected on the pylon of top through an end of beam; One end of internal fixation bar is connected with the intermediate portion of beam; The other end of internal fixation bar is connected with the top pylon, and the cabin frame is arranged on the pylon of top, and wind energy conversion system is arranged on the top, beam of top pylon 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.
Can also comprise outer fixing bar 9, an end of outer fixing bar is connected with the outer end of beam, and the other end of outer fixing bar is connected with the top pylon.
One end of beam is that welding, riveted joint or bolt are connected with the fixed connection of top pylon.
The internal fixation bar is angle steel, I-steel, channel-section steel, square steel, round steel, square tube or pipe.
The outer fixing bar is angle steel, I-steel, channel-section steel, square steel, round steel, square tube or pipe.
Internal fixation bar and said beam and said top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
Outer fixing bar and said beam and said top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
The number of the internal fixation bar on every beam can be 1-4, preferred 1-2.
The power of wind energy conversion system is preferred 0.5～500kW, preferably 2～100kW.
The working principle of patent 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 convert to 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 (9)
1. many rotors wind-power generating system that has fixing rod; 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), cabin frame (7) and internal fixation bar (8), said device for revolving and driving is arranged between said top pylon and the said bottom pylon, and the beam that is positioned at pylon both sides, top is fixedly connected on the pylon of said top through an end of beam; One end of said internal fixation bar is connected with the intermediate portion of said beam; The other end of said internal fixation bar is connected with said top pylon, and said cabin frame is arranged on the pylon of said top, and said wind energy conversion system is arranged on the top, beam of said top pylon 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 that has fixing rod according to claim 1 is characterized in that also comprising outer fixing bar (9), and an end of said outer fixing bar is connected with the outer end of said beam, and the other end of said outer fixing bar is connected with said top pylon.
3. a kind of many rotors wind-power generating system that has fixing rod according to claim 1 is characterized in that an end of beam is that welding, riveted joint or bolt are connected with the fixed connection of top pylon.
4. a kind of many rotors wind-power generating system that has fixing rod according to claim 1 is characterized in that said internal fixation bar is angle steel, I-steel, channel-section steel, square steel, round steel, square tube or pipe.
5. a kind of many rotors wind-power generating system that has fixing rod according to claim 1 is characterized in that said outer fixing bar is angle steel, I-steel, channel-section steel, square steel, round steel, square tube or pipe.
6. a kind of many rotors wind-power generating system that has fixing rod according to claim 1, it is characterized in that said internal fixation bar and said beam and said top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
7. a kind of many rotors wind-power generating system that has fixing rod according to claim 1, it is characterized in that said outer fixing bar and said beam and said top pylon be connected to welding, riveted joint, bolt is connected or be articulated and connected.
8. a kind of many rotors wind-power generating system that has fixing rod according to claim 1, the power that it is characterized in that said wind energy conversion system is 0.5～500kW.
9. a kind of many rotors wind-power generating system that has fixing rod according to claim 8, 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 |
|---|---|---|---|
| CN201110241019A CN102305172A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind generating system with fixing rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110241019A CN102305172A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind generating system with fixing rods |
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| Publication Number | Publication Date |
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| CN102305172A true CN102305172A (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110241019A Pending CN102305172A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind generating system with fixing rods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700023A (en) * | 2015-12-22 | 2018-10-23 | 维斯塔斯风力系统有限公司 | The bearing structure of multi-rotor wind turbine |
Citations (7)
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| CN2274261Y (en) * | 1996-09-06 | 1998-02-11 | 陈向东 | Thin-wing wind-wheel group power device |
| CN1548715A (en) * | 2003-05-05 | 2004-11-24 | 陈祥水 | Full-automaic regulating speed wind motor |
| CN101042113A (en) * | 2007-04-17 | 2007-09-26 | 李士明 | Push-and-pull type dynamic wind device |
| CN201148938Y (en) * | 2007-12-28 | 2008-11-12 | 徐有才 | Swirl type wind motor |
| CN201250765Y (en) * | 2008-08-06 | 2009-06-03 | 青岛安华新能源开发有限公司 | Assembly type wind generating set |
| CN201439744U (en) * | 2009-05-19 | 2010-04-21 | 宁波银风能源科技股份有限公司 | Multi-set combined wind and solar hybrid generation device |
| CN101737248A (en) * | 2010-02-20 | 2010-06-16 | 马军兴 | Wind machine provided with symmetrically-turning axial-flow even wheels |
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2011
- 2011-08-19 CN CN201110241019A patent/CN102305172A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2274261Y (en) * | 1996-09-06 | 1998-02-11 | 陈向东 | Thin-wing wind-wheel group power device |
| CN1548715A (en) * | 2003-05-05 | 2004-11-24 | 陈祥水 | Full-automaic regulating speed wind motor |
| CN101042113A (en) * | 2007-04-17 | 2007-09-26 | 李士明 | Push-and-pull type dynamic wind device |
| CN201148938Y (en) * | 2007-12-28 | 2008-11-12 | 徐有才 | Swirl type wind motor |
| CN201250765Y (en) * | 2008-08-06 | 2009-06-03 | 青岛安华新能源开发有限公司 | Assembly type wind generating set |
| CN201439744U (en) * | 2009-05-19 | 2010-04-21 | 宁波银风能源科技股份有限公司 | Multi-set combined wind and solar hybrid generation device |
| CN101737248A (en) * | 2010-02-20 | 2010-06-16 | 马军兴 | Wind machine provided with symmetrically-turning axial-flow even wheels |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700023A (en) * | 2015-12-22 | 2018-10-23 | 维斯塔斯风力系统有限公司 | The bearing structure of multi-rotor wind turbine |
| US10626850B2 (en) | 2015-12-22 | 2020-04-21 | Vestas Wind Systems A/S | Load carrying structure for a multirotor wind turbine |
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Application publication date: 20120104 |