CN102305187A - Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind - Google Patents

Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind Download PDF

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Publication number
CN102305187A
CN102305187A CN201110240604A CN201110240604A CN102305187A CN 102305187 A CN102305187 A CN 102305187A CN 201110240604 A CN201110240604 A CN 201110240604A CN 201110240604 A CN201110240604 A CN 201110240604A CN 102305187 A CN102305187 A CN 102305187A
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CN
China
Prior art keywords
wind
suspension rod
pylon
generating system
energy conversion
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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
Application number
CN201110240604A
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Chinese (zh)
Inventor
鲁林平
王一平
朱丽
黄群武
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Tianjin University
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Tianjin University
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Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201110240604A priority Critical patent/CN102305187A/en
Publication of CN102305187A publication Critical patent/CN102305187A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention discloses a multi-rotor wind generating system provided with suspenders and capable of automatically facing wind. The multi-rotor wind generating system comprises a lower tower 1, a slewing bearing 3, wind turbines, an upper tower 2, steel ropes and/or steel rods 8, beams 6, tail vanes 7 and the suspenders 9; the slewing bearing is arranged between the upper tower and the lower tower; two sides of the upper tower are connected with one end of each beam; the outer end of the uppermost beam is connected with the top end of the upper tower through a steel rope and/or a steel rod; outer ends of adjacent beams are connected through steel ropes and/or steel rods; the upper end of each suspender is connected with the lowermost beam; the wind turbines are fixedly connected with the top of the upper tower, the beams or/and the lower ends of the suspenders; the beams on two sides have different lengths; the longer beams are provided with more wind turbines than the shorter beams; and the tail vanes are connected with the upper tower, the beams or/and cabins. 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 low, the reliability is high, the application range is wide, a slewing bearing or a rotary driving device in a cabin is eliminated, the bearing bears small force, and automatic wind facing and yawing are realized.

Description

Have suspension rod can be automatically to many rotors wind-power generating system of wind
Technical field
The invention belongs to field of wind energy utilization, relate to have suspension rod can be automatically to many rotors wind-power generating system of wind.
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 to overcome the deficiency that exists in the prior art, provide have suspension rod can be automatically to many rotors wind-power generating system of wind.
Technological scheme of the present invention is summarized as follows:
Have suspension rod can be automatically to many rotors wind-power generating system of wind; Comprise bottom pylon 1; Floating bearing 3 and wind energy conversion system; Also comprise top pylon 2; Wire rope and/or steel bar 8; Beam 6; Tail vane 7 and suspension rod 9; 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; The outer end of uppermost beam is connected with the top of said top pylon through wire rope and/or steel bar; The outer end of adjacent beams connects through wire rope and/or steel bar; The upper end of suspension rod be positioned at nethermost beam and be fixedly connected; The top of wind energy conversion system and top pylon; Said beam is or/and the lower end fixed connection of suspension rod; The length of the beam of pylon both sides, top is unequal; 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; Said wind energy conversion system comprises wind wheel 4 and cabin 5; Said wind energy conversion system is 2-100, tail vane and top pylon; Beam or/and the cabin connect through bearing pin.
The middle part of uppermost beam is connected with the top of top pylon through 1-10 root wire rope and/or steel bar, and the middle part of adjacent beams connects through 1-10 root wire rope and/or steel bar rope in twos.
The number of tail vane is 1-100.
Suspension rod is 2-50.
Also comprise drag link 11, drag link is arranged between the suspension rod.
Also comprise brace 10, an end of brace is connected with suspension rod, and the other end of brace is connected with nethermost beam.
Also comprise mast 12, an end of mast is connected on the pylon of bottom.
Also comprise cabin frame 13, the cabin frame is arranged on the pylon of top, and wind energy conversion system is arranged on the frame of cabin.
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 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) 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 floating bearing, 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 wire rope or bar at the end and the middle part of a long beam, beam is connected in twos and be connected on the pylon, can improve the stressed of beam greatly, reduce the overall cost of structure with less cost.
(11) suspension structures is improved the stressed of floating bearing.The wind energy conversion system of the lower end suspension of suspension rod is owing to be positioned at the below of floating bearing; When bearing horizontal thrust; The direction of the tilting moment that produces on the floating bearing with above the tilting moment direction that produces of wind energy conversion system cancel out each other on the contrary mutually, thereby reduced to act on the tilting moment on the floating bearing.
Description of drawings
Fig. 1 is the plan view of many rotors wind-power generating system.
Fig. 2 is the plan view of second kind of form of many rotors wind-power generating system.
Fig. 3 is the plan view of the third form of many rotors wind-power generating system.
Fig. 4 is the plan view of the 4th kind of form of many rotors wind-power generating system.
Fig. 5 is the tail vane installation form schematic top plan view of many rotors wind-power generating system.
Fig. 6 is the schematic top plan view of second kind of tail vane installation form of many rotors wind-power generating system.
Fig. 7 is the schematic top plan view of the third tail vane installation form of many rotors wind-power generating system.
Fig. 8 is many rotors wind-power generating system band cabin frame schematic top plan view
Embodiment
Below in conjunction with accompanying drawing further detailed description is done in enforcement of the present invention, it is descriptive below detailing, and is not determinate, can not limit the protection domain of patent of the present invention.
Have suspension rod can be automatically to many rotors wind-power generating system of wind; Comprise bottom pylon 1; Floating bearing 3 and wind energy conversion system; Also comprise top pylon 2; Wire rope and/or steel bar 8; Beam 6; Tail vane 7 and suspension rod 9; 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; The outer end of uppermost beam is connected with the top of said top pylon through wire rope and/or steel bar; The outer end of adjacent beams connects through wire rope and/or steel bar; The upper end of suspension rod be positioned at nethermost beam and be fixedly connected; The top of wind energy conversion system and top pylon; Said beam is or/and the lower end fixed connection of suspension rod; The length of the beam of pylon both sides, top is unequal; 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; Said wind energy conversion system comprises wind wheel 4 and cabin 5; Said wind energy conversion system is 2-100, tail vane and top pylon; Beam or/and the cabin connect through bearing pin.
The middle part of uppermost beam is connected with the top of top pylon through 1-10 root wire rope and/or steel bar, and the middle part of adjacent beams connects through 1-10 root wire rope and/or steel bar rope in twos.
The number of tail vane is 1-100.
Suspension rod is 2-50.
Also comprise drag link 11, drag link is arranged between the suspension rod.
Also comprise brace 10, an end of brace is connected with suspension rod, and the other end of brace is connected with nethermost beam.
Also comprise mast 12, an end of mast is connected on the pylon of bottom.
Also comprise cabin frame 13, the cabin frame is arranged on the pylon of top, and wind energy conversion system is arranged on the frame of cabin.
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 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.Tail vane carries out wind with top at the flywheel moment driving rotational bearing that wind speed produces during less than rated wind speed, and 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.

Claims (10)

1. have suspension rod can be automatically to many rotors wind-power generating system of wind; Comprise bottom pylon (1); Floating bearing (3) and wind energy conversion system; It is characterized in that also comprising top pylon (2); Wire rope and/or steel bar (8); Beam (6); Tail vane (7) and suspension rod (9); Said floating bearing is arranged between said top pylon and the said bottom pylon; 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 wire rope and/or steel bar; The outer end of adjacent beams connects through wire rope and/or steel bar; The upper end of said suspension rod be positioned at nethermost beam and be fixedly connected; The top of said wind energy conversion system and said top pylon; Said beam is or/and the lower end fixed connection of suspension rod; The length of the beam of pylon both sides, said top is unequal; 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; Said wind energy conversion system comprises wind wheel (4) and cabin (5); Said wind energy conversion system is 2-100, said tail vane and said top pylon; Said beam or/and said cabin connect through bearing pin.
2. according to claim 1 have suspension rod can be automatically to many rotors wind-power generating system of wind; The middle part that it is characterized in that said uppermost beam is connected with the top of said top pylon through 1-10 root wire rope and/or steel bar, and the middle part of adjacent beams connects through 1-10 root wire rope and/or steel bar in twos.
3. according to claim 1 have a suspension rod can be automatically to many rotors wind-power generating system of wind, the number that it is characterized in that said tail vane is 1-100.
4. according to claim 1 have a suspension rod can be automatically to many rotors wind-power generating system of wind, it is characterized in that said suspension rod is 2-50.
5. according to claim 1 have a suspension rod can it is characterized in that also comprising drag link (11) automatically to many rotors wind-power generating system of wind, said drag link is arranged between the said suspension rod.
6. according to claim 1 have a suspension rod can it is characterized in that also comprising brace (10) automatically to many rotors wind-power generating system of wind, an end of said brace is connected with said suspension rod, the other end of said brace is connected with said nethermost beam.
7. according to claim 1 have a suspension rod can it is characterized in that also comprising mast (12) automatically to many rotors wind-power generating system of wind, an end of said mast is connected on the pylon of said bottom.
8. according to claim 1 have a suspension rod can it is characterized in that also comprising cabin frame (13) automatically to many rotors wind-power generating system of wind, said cabin frame is arranged on the pylon of said top, said wind energy conversion system is arranged on the frame of cabin.
9. according to claim 1 have a suspension rod can be automatically to many rotors wind-power generating system of wind, the power that it is characterized in that said wind energy conversion system is 0.5~500kW.
10. according to claim 9 have a suspension rod can be automatically to many rotors wind-power generating system of wind, the power that it is characterized in that said wind energy conversion system is 2~100kW.
CN201110240604A 2011-08-19 2011-08-19 Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind Pending CN102305187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110240604A CN102305187A (en) 2011-08-19 2011-08-19 Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110240604A CN102305187A (en) 2011-08-19 2011-08-19 Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind

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CN102305187A true CN102305187A (en) 2012-01-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2222813Y (en) * 1994-06-07 1996-03-20 宿伟 Combined wind-driven generator
CN1198509A (en) * 1998-05-04 1998-11-11 朱杰 Wind motor
WO2003069156A1 (en) * 2002-02-14 2003-08-21 Aloys Wobben Wind energy turbine
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
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2222813Y (en) * 1994-06-07 1996-03-20 宿伟 Combined wind-driven generator
CN1198509A (en) * 1998-05-04 1998-11-11 朱杰 Wind motor
WO2003069156A1 (en) * 2002-02-14 2003-08-21 Aloys Wobben Wind energy turbine
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
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

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Application publication date: 20120104