CN102269115A - Multi-rotor wind power generation system with tail vane - Google Patents
Multi-rotor wind power generation system with tail vane Download PDFInfo
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- CN102269115A CN102269115A CN2011102410204A CN201110241020A CN102269115A CN 102269115 A CN102269115 A CN 102269115A CN 2011102410204 A CN2011102410204 A CN 2011102410204A CN 201110241020 A CN201110241020 A CN 201110241020A CN 102269115 A CN102269115 A CN 102269115A
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- wind
- tail vane
- energy conversion
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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
- 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
- Y02E10/728—Onshore wind turbines
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Abstract
The invention discloses a multi-rotor wind power generation system with a tail vane. The system comprises a lower part tower frame 1, a rotation bearing 3, wind turbines, an upper part tower frame 2, beams and the tail vane 7; the rotation bearing is arranged between the upper part tower frame and the lower part tower frame; the beams which are arranged at two sides of the upper part tower frame are different in length, and are respectively and fixedly connected with the upper part tower frame through one end of each beam; the wind turbines are fixedly connected with the top part of the upper part tower frame or/ and the beams; each wind turbine comprises a wind wheel 4 and a cabin 5; the amount of wind turbines which are arranged on the longer beam is greater than those arranged on the shorter beam by 0-10; and the tail vane is connected with the upper part tower frame, the beams or/ and the cabin through a pin shaft. The system provided by the invention has the advantages that a blade has a long service life; the space covering is small; the mounting and maintaining costs are low; the system has good reliability; the application range is wide; the rotation bearing or a rotation driving system in the cabin is cancelled; and the wind, yaw and safety are automatically protected.
Description
Technical field
The invention belongs to field of wind energy utilization, relate to the many rotors wind-power generating system that has tail vane.
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 is converted to mechanical energy, 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 be subjected to 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 is easy more to be destroyed.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.
The wind energy conversion system of outwork has certain nominal operation wind speed, when wind speed is lower than rated wind speed, in order to make the generated energy maximization, wind wheel is facingd the wind, and is higher than rated wind speed and work as wind speed, in order to protect wind energy conversion system, need go off course.At present, use device for revolving and driving in single wind energy conversion system usually, constantly monitor wind speed, carry out tuning at any time, device for revolving and driving not only operating conditions is relatively poor, and the cost height.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the many rotors that have tail vane wind-power generating system is provided.
Technological scheme of the present invention is summarized as follows:
The many rotors wind-power generating system that has tail vane, comprise bottom pylon 1, floating bearing 3 and wind energy conversion system, also comprise top pylon 2, beam 6 and tail vane 7, floating bearing is arranged between top pylon and the bottom pylon, the length of beam that is arranged on pylon both sides, top is unequal, and fixedly connected with the top pylon by an end of beam respectively, the top of wind energy conversion system and top pylon or/and beam fixedly connected, wind energy conversion system comprises wind wheel 4 and cabin 5, the many 0-10 of quantity of wind energy conversion system are individual on the beam that the quantity of the wind energy conversion system that is provided with on the long beam is relatively lacked, tail vane and top pylon, beam or/and the cabin connect by bearing pin.
The number of tail vane is 1-100.
The number of tail vane is 2-10.
Also comprise mast 8, an end of mast is connected on the pylon of described bottom.
Mast is 3-40.
Also comprise cabin frame 9, the cabin frame is arranged on the pylon of described top, and the cabin frame is provided with wind energy conversion system.
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, is subjected to influence by the wind shear little on short transverse, and the fatigue load of short blade is little, the manufacturing technology maturation of while short blade, and 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 on a pylon of the present invention only need to consider 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 need small-sized lifting machinery just can carry out equipment and install 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 and replacing are easy; 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 arranging a plurality of wind energy conversion systems on a pylon 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 substantially.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 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, therefore 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 by tail vane of structure, therefore do not need to be provided with again the gyroscopic drive system of hydraulic type or motor-driven to wind, driftage and safety protection.
Description of drawings
Fig. 1 is the schematic representation that has many rotors wind-power generating system of tail vane.
Fig. 2 is the schematic top plan view that has many rotors wind-power generating system of tail vane.
Fig. 3 is the schematic top plan view that has the another kind of form of many rotors wind-power generating system of tail vane.
Fig. 4 is the schematic top plan view that has the third form of many rotors wind-power generating system of tail vane.
Fig. 5 differs the schematic representation of the many rotors wind-power generating system that has tail vane that is at 0 o'clock for both sides wind energy conversion system number.
Fig. 6 is the schematic representation of the many rotors wind-power generating system that has tail vane when the cabin frame is arranged.
The schematic top plan view of the many rotors wind-power generating system that has tail vane when Fig. 7 is normal the operation.
The schematic top plan view of the many rotors wind-power generating system that has tail vane when Fig. 8 is downwind position.
Embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is further described, it is descriptive below describing in detail, is not determinate, can not limit the protection domain of patent of the present invention.
The many rotors wind-power generating system that has tail vane, comprise bottom pylon 1, floating bearing 3 and wind energy conversion system, also comprise top pylon 2, beam 6 and tail vane 7, floating bearing is arranged between top pylon and the bottom pylon, the length of beam that is arranged on pylon both sides, top is unequal, and fixedly connected with the top pylon by an end of beam respectively, the top of wind energy conversion system and top pylon or/and beam fixedly connected, wind energy conversion system comprises wind wheel 4 and cabin 5, the many 0-10 of quantity of wind energy conversion system are individual on the beam that the quantity of the wind energy conversion system that is provided with on the long beam is relatively lacked, tail vane and top pylon, beam or/and the cabin connect by bearing pin.
The number of tail vane is 1-100.
The number of tail vane is 2-10.
Also comprise mast 8, an end of mast is connected on the pylon of described bottom.
Mast is 3-40.
Also comprise cabin frame 9, the cabin frame is arranged on the pylon of described top, and the cabin frame is provided with wind energy conversion system.
The power of wind energy conversion system is preferred 0.5～500kW, preferably 2～100kW.
Tail vane carries out wind in the flywheel moment driving structure revolution that wind speed produces during less than rated wind speed.
The wind energy conversion system of asymmetric layout is gone off course in the flywheel moment driving structure revolution that wind speed produces during greater than rated wind speed.
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, and 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, the structure of asymmetric layout can impel wind wheel to produce a down the wind rotating moment, reaches the purpose of driftage and safety protection.
Claims (8)
1. the many rotors wind-power generating system that has tail vane, comprise bottom pylon (1), floating bearing (3) and wind energy conversion system, it is characterized in that also comprising top pylon (2), beam (6) and tail vane (7), described floating bearing is arranged between described top pylon and the described bottom pylon, the length of beam that is arranged on pylon both sides, top is unequal, and fixedly connected with described top pylon by an end of beam respectively, the top of described wind energy conversion system and described top pylon or/and described beam fixedly connected, described wind energy conversion system comprises wind wheel (4) and cabin (5), the many 0-10 of quantity of wind energy conversion system are individual on the beam that the quantity of the wind energy conversion system that is provided with on the long beam is relatively lacked, described tail vane and described top pylon, described beam or/and described cabin connect by bearing pin.
2. the many rotors wind-power generating system that has tail vane according to claim 1, the number that it is characterized in that described tail vane are 1-100.
3. the many rotors wind-power generating system that has tail vane according to claim 2, the number that it is characterized in that described tail vane are 2-10.
4. the many rotors wind-power generating system that has tail vane according to claim 1 is characterized in that also comprising mast (8), and an end of described mast is connected on the pylon of described bottom.
5. the many rotors wind-power generating system that has tail vane according to claim 4 is characterized in that described mast is 3-40.
6. the many rotors wind-power generating system that has tail vane according to claim 1 is characterized in that also comprising cabin frame (9), and described cabin frame is arranged on the pylon of described top, and described cabin frame is provided with wind energy conversion system.
7. the many rotors wind-power generating system that has tail vane according to claim 1, the power that it is characterized in that described wind energy conversion system is 0.5～500kW.
8. the many rotors wind-power generating system that has tail vane according to claim 7, the power that it is characterized in that described wind energy conversion system is 2～100kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102410204A CN102269115A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind power generation system with tail vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102410204A CN102269115A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind power generation system with tail vane |
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| Publication Number | Publication Date |
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| CN102269115A true CN102269115A (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102410204A Pending CN102269115A (en) | 2011-08-19 | 2011-08-19 | Multi-rotor wind power generation system with tail vane |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222813Y (en) * | 1994-06-07 | 1996-03-20 | 宿伟 | Combined wind-driven generator |
| 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 |
| CN101787958A (en) * | 2009-01-22 | 2010-07-28 | 风技绿能科技股份有限公司 | Improved wind power generation device structure |
-
2011
- 2011-08-19 CN CN2011102410204A patent/CN102269115A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222813Y (en) * | 1994-06-07 | 1996-03-20 | 宿伟 | Combined wind-driven generator |
| 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 |
| CN101787958A (en) * | 2009-01-22 | 2010-07-28 | 风技绿能科技股份有限公司 | Improved wind power generation device structure |
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Application publication date: 20111207 |