CN102322397A - Multi-rotor wind power generation system with equal beam length - Google Patents
Multi-rotor wind power generation system with equal beam length Download PDFInfo
- Publication number
- CN102322397A CN102322397A CN201110240603A CN201110240603A CN102322397A CN 102322397 A CN102322397 A CN 102322397A CN 201110240603 A CN201110240603 A CN 201110240603A CN 201110240603 A CN201110240603 A CN 201110240603A CN 102322397 A CN102322397 A CN 102322397A
- Authority
- CN
- China
- Prior art keywords
- pylon
- wind
- beams
- energy conversion
- wind energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Wind Motors (AREA)
Abstract
The invention discloses a multi-rotor wind power generation system with equal beam length, which comprises a lower pylon 1, a rotary bearing 3, windmills, an upper pylon 2, a rope and/or a rod 8, beams 6 and a tail vane 7, wherein the rotary bearing is arranged between the upper pylon and the lower pylon; two sides of the upper pylon are respectively connected with one ends of the beams; the outer end of the uppermost beam is connected with the top end of the upper pylon through the rope and/or the rod; the outer ends of adjacent beams are connected through the rope and/or the rod; the lengths of the beams at two sides of the upper pylon are equal; the windmills are fixedly connected with the top of the upper pylon or/and the beams; the number of the windmills on the beams at one side is greater than that of the windmills on the beams at the other side; and the tail vane is connected with the upper pylon, the beams or/and an engine room through a pin roll. The multi-rotor wind power generation system has the advantages of long service life of the vane, small occupied area, low cost for installation and maintenance, favorable reliability, wide application range, low bearing stress, automatic wind resistance and yawing and small stress of the beams; and the rotary bearing or a rotary driving device in the engine room is omitted.
Description
Technical field
The invention belongs to field of wind energy utilization, relate to a kind of many rotors wind-power generating system that waits beam length.
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 waits beam length is provided.
Technological scheme of the present invention is summarized as follows:
A kind of many rotors wind-power generating system that waits beam length comprises bottom pylon 1, floating bearing 3 and wind energy conversion system, also comprises top pylon 2, rope and/or bar 8, beam 6 and tail vane 7; Floating bearing is arranged between top pylon and the bottom pylon; The both sides of top pylon are connected with an end of beam respectively, and the outer end of uppermost beam is connected with the top of top pylon through rope and/or bar, and the outer end of adjacent beams connects through rope and/or bar; The equal in length of the beam of pylon both sides, top; The top of wind energy conversion system and top pylon is or/and beam is fixedly connected, and the quantity of the wind energy conversion system that is provided with on the beam of the quantity of the wind energy conversion system that is provided with on the beam of a side than opposite side manys 1-20, and wind energy conversion system comprises wind wheel 4 and cabin 5; Wind energy conversion system is 2-100, tail vane and top pylon, beam or/and the cabin be connected through bearing pin.
The number of tail vane is 1-100.
The middle part of beam connects through 1-10 rope and/or bar in twos, and the middle part of uppermost beam is connected with the top of top pylon through rope and/or bar.
The present invention can also comprise mast 9, and an end of mast is connected on the pylon of bottom.
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) automatically to wind, driftage and safety protection.Tail vane carries out wind with top at the flywheel moment driving rotational bearing that wind speed produces during less than rated wind speed.The wind energy conversion system of asymmetric layout is gone off course with top at the flywheel moment driving rotational bearing that wind speed produces during greater than rated wind speed.
(9) do not need drive system.Owing to can realizing through tail vane of structure, therefore do not need to be provided with again the device for revolving and driving of hydraulic type or motor-driven to wind, driftage and safety protection.
(10) be furnished with some ropes or bar at the end and the middle part of a long beam, beam is connected in twos and is connected on the pylon, can improve the stressed of beam greatly, reduce the overall cost of structure with less cost.
Description of drawings
Fig. 1 is the schematic representation of many rotors wind-power generating system.
Fig. 2 is the schematic representation of the another kind of form of many rotors wind-power generating system.
Fig. 3 is the schematic top plan view of many rotors wind-power generating system.
Fig. 4 is the schematic top plan view of the another kind of form of many rotors wind-power generating system.
Fig. 5 is the schematic top plan view of the third form of many rotors wind-power generating system.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
A kind of many rotors wind-power generating system that waits beam length comprises bottom pylon 1, floating bearing 3 and wind energy conversion system, also comprises top pylon 2, rope and/or bar 8, beam 6 and tail vane 7; Floating bearing is arranged between top pylon and the bottom pylon; The both sides of top pylon are connected with an end of beam respectively, and the outer end of uppermost beam is connected with the top of top pylon through rope and/or bar, and the outer end of adjacent beams connects through rope and/or bar; The equal in length of the beam of pylon both sides, top; The top of wind energy conversion system and top pylon is or/and beam is fixedly connected, and the quantity of the wind energy conversion system that is provided with on the beam of the quantity of the wind energy conversion system that is provided with on the beam of a side than opposite side manys 1-20, and wind energy conversion system comprises wind wheel 4 and cabin 5; Wind energy conversion system is 2-100, tail vane and top pylon, beam or/and the cabin be connected through bearing pin.
The number of tail vane is 1-100.
The middle part of beam connects through 1-10 rope and/or bar in twos, and the middle part of uppermost beam is connected with the top of top pylon through rope and/or bar.
The present invention can also comprise mast 9, and an end of mast is connected on the pylon of bottom.
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 through inverter become with the electricity of electrical network with homophase frequently after 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 wind speed does not also reach the speed limit wind speed, wind wheel will be in the position over against wind direction, the position of just working under the effect of tail vane.When wind speed during greater than the speed limit wind speed, asymmetric structures arranged can impel wind wheel to produce a down the wind rotating moment, reaches the purpose of driftage and safety protection.
Claims (6)
1. many rotors wind-power generating system that waits beam length; Comprise bottom pylon (1), floating bearing (3) and wind energy conversion system; It is characterized in that also comprising top pylon (2), rope and/or bar (8), beam (6) and tail vane (7), said floating bearing is arranged between said top pylon and the said bottom pylon, and the both sides of top pylon are connected with an end of beam respectively; The outer end of uppermost beam is connected with the top of said top pylon through rope and/or bar; The outer end of adjacent beams connects through rope and/or bar, the equal in length of the beam of pylon both sides, said top, the top of said wind energy conversion system and said top pylon or/and said beam be fixedly connected; The quantity of the wind energy conversion system that is provided with on the beam of the quantity of the wind energy conversion system that is provided with on the beam of one side than opposite side manys 1-20; Said wind energy conversion system comprises wind wheel (4) and cabin (5), and said wind energy conversion system is 2-100, said tail vane and said top pylon, said beam or/and said cabin be connected through bearing pin.
2. a kind of many rotors wind-power generating system that waits beam length according to claim 1, the number that it is characterized in that said tail vane is 1-100.
3. a kind of many rotors wind-power generating system that waits beam length according to claim 1 is characterized in that the middle part of said beam connects through 1-10 rope and/or bar in twos, and the middle part of uppermost beam is connected with the top of said top pylon through rope and/or bar.
4. a kind of many rotors wind-power generating system that waits beam length according to claim 1 is characterized in that also comprising mast (9), and an end of said mast is connected on the pylon of said bottom.
5. a kind of many rotors wind-power generating system that waits beam length according to claim 1, the power that it is characterized in that said wind energy conversion system is 0.5～500kW.
6. a kind of many rotors wind-power generating system that waits beam length according to claim 5, 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 |
|---|---|---|---|
| CN201110240603A CN102322397A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind power generation system with equal beam length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240603A CN102322397A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind power generation system with equal beam length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322397A true CN102322397A (en) | 2012-01-18 |
Family
ID=45450202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110240603A Pending CN102322397A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind power generation system with equal beam length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102322397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279120A (en) * | 2013-07-04 | 2015-01-14 | 广州红鹰能源科技有限公司 | Matrix wind accelerating type wind generating set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009464A1 (en) * | 2005-07-19 | 2007-01-25 | Pp Energy Aps | Plant for exploiting wind energy at sea |
| CN101270726A (en) * | 2007-12-12 | 2008-09-24 | 陈晓通 | Multi-wind wheel mechanical energy-gathering wind generator set |
| US20090311099A1 (en) * | 2008-06-16 | 2009-12-17 | Richards William R | Banded turbine |
| CN101666289A (en) * | 2009-09-19 | 2010-03-10 | 杜振义 | Multiple-blade machine |
| CN101813056A (en) * | 2009-09-19 | 2010-08-25 | 杜振义 | Multi-propeller wind driven generator |
-
2011
- 2011-08-19 CN CN201110240603A patent/CN102322397A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009464A1 (en) * | 2005-07-19 | 2007-01-25 | Pp Energy Aps | Plant for exploiting wind energy at sea |
| CN101270726A (en) * | 2007-12-12 | 2008-09-24 | 陈晓通 | Multi-wind wheel mechanical energy-gathering wind generator set |
| US20090311099A1 (en) * | 2008-06-16 | 2009-12-17 | Richards William R | Banded turbine |
| CN101666289A (en) * | 2009-09-19 | 2010-03-10 | 杜振义 | Multiple-blade machine |
| CN101813056A (en) * | 2009-09-19 | 2010-08-25 | 杜振义 | Multi-propeller wind driven generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279120A (en) * | 2013-07-04 | 2015-01-14 | 广州红鹰能源科技有限公司 | Matrix wind accelerating type wind generating set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2463513B1 (en) | Wind generating device | |
| CN201443471U (en) | Circular horizontal axis wind generating set | |
| CN101881256A (en) | Wind power generator | |
| CN102305188A (en) | Multi-rotor wind generating system capable of automatically facing wind | |
| CN101994652B (en) | Universal horizontal-shaft wind generating unit | |
| CN102269113A (en) | Multi-rotor wind power generation system | |
| CN201574891U (en) | Wind-driven generator with multistage impellers | |
| CN102322400B (en) | Multi-rotor wind power generation system with tail vane | |
| CN102305171A (en) | Multi-rotor wind generating system with connecting rods | |
| CN101004167A (en) | High efficiency wind driven generator with vertical axis of petal type fan blades | |
| CN102305185A (en) | Multi-rotor wind generating system with suspenders | |
| CN102305173B (en) | Multi-rotor wind generating system capable of automatically facing wind | |
| CN102305186A (en) | Multi-rotor wind generating system | |
| CN104895743A (en) | Stacked three-dimensional wind-driven power generator | |
| CN102322397A (en) | Multi-rotor wind power generation system with equal beam length | |
| CN102269116A (en) | Multi-rotor wind power generation system employing direct-current power transmission | |
| CN102305189A (en) | Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind | |
| CN102305187A (en) | Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind | |
| CN201474874U (en) | Detachable lifting wind-driven generator tower frame | |
| CN202065122U (en) | Wind power generation device | |
| CN206368773U (en) | Honeycomb wind power station | |
| CN102269111A (en) | Multi-rotor wind power generator system with cantilever beam | |
| WO2012050540A1 (en) | Wind turbine (embodiments) | |
| CN102305190A (en) | Multi-rotor wind generating system provided with horizontal connecting rods | |
| CN102305172A (en) | Multi-rotor wind generating system with fixing rods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |