CN102305185A - Multi-rotor wind generating system with suspenders - Google Patents

Multi-rotor wind generating system with suspenders Download PDF

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Publication number
CN102305185A
CN102305185A CN201110240558A CN201110240558A CN102305185A CN 102305185 A CN102305185 A CN 102305185A CN 201110240558 A CN201110240558 A CN 201110240558A CN 201110240558 A CN201110240558 A CN 201110240558A CN 102305185 A CN102305185 A CN 102305185A
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CN
China
Prior art keywords
wind
suspension rod
generating system
energy conversion
pylon
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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
CN201110240558A
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Chinese (zh)
Inventor
黄群武
王一平
朱丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
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Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201110240558A priority Critical patent/CN102305185A/en
Publication of CN102305185A publication Critical patent/CN102305185A/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 with suspenders. The multi-rotor wind generating system comprises a lower tower 1, a rotary driving device 3, wind turbines, an upper tower 2, ropes and/or connecting rods 8, beams 6, a cabin frame 7 and the suspenders 9, wherein the rotary driving device 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 and the middle part of the uppermost beam are connected with the top of the upper tower through the ropes and/or the connecting rods; outer ends of adjacent beams are connected through the ropes and/or the connecting rods; middle parts of the adjacent beams are connected through the ropes and/or the connecting rods; the upper ends of the suspenders are fixedly connected with the lowermost beam; the cabin frame is arranged on the upper tower; the wind turbines are arranged on the upper tower; and the wind turbines are fixedly connected with the top of the upper tower, the beams, the cabin frame or/and the lower ends of the suspenders. The multi-rotor wind generating system has the advantages of long service life, small floor area, low installation and maintenance cost, high reliability, wide application range, no rotary driving device in a cabin, and low bearing overturning moment.

Description

The many rotors wind-power generating system that has suspension rod
Technical field
The invention belongs to field of wind energy utilization, relate to a kind of many rotors wind-power generating system that has suspension 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 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, a kind of many rotors wind-power generating system that has suspension rod is provided.
Technological scheme of the present invention is summarized as follows:
A kind of many rotors wind-power generating system that has suspension rod; Comprise bottom pylon 1; Device for revolving and driving 3 and wind energy conversion system; Also comprise top pylon 2; Rope and/or connecting rod 8; Beam 6; Cabin frame 7 and suspension rod 9; Device for revolving and driving 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 top pylon through rope and/or connecting rod respectively with the intermediate portion; The outer end of adjacent beams connects through rope and/or connecting rod; And the intermediate portion of adjacent beams connects through rope and/or connecting rod; The upper end of suspension rod be positioned at nethermost beam and be fixedly connected; The cabin frame is arranged on the pylon of top; The top of wind energy conversion system and top pylon; Beam; The cabin frame is or/and the lower end fixed connection of suspension rod; Wind energy conversion system comprises wind wheel 4 and cabin 5, and wind energy conversion system is 2-100.
Suspension rod is 2-50.
Suspension rod is 4-20.
The present invention can also comprise drag link 10, and drag link is arranged between the suspension rod.
Can also comprise brace 11, an end of brace is connected with the lower end of suspension rod, and the other end of brace is connected with nethermost beam.
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 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) reduce the bearing tilting moment.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 a kind of schematic representation that has many rotors wind-power generating system of suspension rod.
Fig. 2 is the schematic representation that has second kind of form of many rotors wind-power generating system of suspension rod.
Fig. 3 is the schematic representation that has the third form of many rotors wind-power generating system of suspension rod.
Fig. 4 is the schematic representation that has the 4th kind of form of many rotors wind-power generating system of suspension rod.
Fig. 5 is a kind of schematic top plan view that has many rotors wind-power generating system of suspension 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.
The present invention is further illustrated below in conjunction with accompanying drawing.
A kind of many rotors wind-power generating system that has suspension rod; Comprise bottom pylon 1; Device for revolving and driving 3 and wind energy conversion system; Also comprise top pylon 2; Rope and/or connecting rod 8; Beam 6; Cabin frame 7 and suspension rod 9; Device for revolving and driving 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 top pylon through rope and/or connecting rod respectively with the intermediate portion; The outer end of adjacent beams connects through rope and/or connecting rod; And the intermediate portion of adjacent beams connects through rope and/or connecting rod; The upper end of suspension rod be positioned at nethermost beam and be fixedly connected; The cabin frame is arranged on the pylon of top; The top of wind energy conversion system and top pylon; Beam; The cabin frame is or/and the lower end fixed connection of suspension rod; Wind energy conversion system comprises wind wheel 4 and cabin 5, and wind energy conversion system is 2-100.
Suspension rod is 2-50.
Suspension rod is 4-20.
The present invention can also comprise drag link 10, and drag link is arranged between the suspension rod.
Can also comprise brace 11, an end of brace is connected with the lower end of suspension rod, and the other end of brace is connected with nethermost beam.
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.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 (7)

1. many rotors wind-power generating system that has suspension 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); Rope and/or connecting rod (8); Beam (6); Cabin frame (7) and suspension rod (9); Said device for revolving and driving 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 rope and/or connecting rod respectively with the intermediate portion; The outer end of adjacent beams connects through rope and/or connecting rod; And the intermediate portion of adjacent beams connects through rope and/or connecting rod; The upper end of said suspension rod be positioned at nethermost beam and be fixedly connected; Said cabin frame is arranged on the pylon of said top; The top of said wind energy conversion system and said top pylon; Beam; The cabin frame is or/and the lower end fixed connection of suspension rod; 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 suspension rod according to claim 1 is characterized in that said suspension rod is 2-50.
3. a kind of many rotors wind-power generating system that has suspension rod according to claim 2 is characterized in that said suspension rod is 4-20.
4. a kind of many rotors wind-power generating system that has suspension rod according to claim 3 is characterized in that also comprising drag link (10), and said drag link is arranged between the said suspension rod.
5. a kind of many rotors wind-power generating system that has suspension rod according to claim 1 is characterized in that also comprising brace (11), and an end of said brace is connected with the lower end of said suspension rod, and the other end of said brace is connected with said nethermost beam.
6. a kind of many rotors wind-power generating system that has suspension rod according to claim 1, the power that it is characterized in that said wind energy conversion system is 0.5~500kW.
7. a kind of many rotors wind-power generating system that has suspension rod according to claim 6, the power that it is characterized in that said wind energy conversion system is 2~100kW.
CN201110240558A 2011-08-19 2011-08-19 Multi-rotor wind generating system with suspenders Pending CN102305185A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017108050A1 (en) * 2015-12-22 2017-06-29 Vestas Wind Systems A/S Methods for mounting or dismounting a wind turbine component of a multirotor wind turbine
US11118568B2 (en) 2014-08-15 2021-09-14 Vestas Wind Systems A/S Control of a wind turbine with a fault condition

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236092A1 (en) * 1992-10-26 1994-04-28 Histeel S A Multiple wind-power generators tower for electricity generation - is located rotatable or swivelable about vertical axes respectively independent of each other at frame which is connected fixed to mast itself braced by ropes
WO2003069156A1 (en) * 2002-02-14 2003-08-21 Aloys Wobben Wind energy turbine
US20030168864A1 (en) * 2002-03-08 2003-09-11 William Heronemus Offshore wind 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
DE4236092A1 (en) * 1992-10-26 1994-04-28 Histeel S A Multiple wind-power generators tower for electricity generation - is located rotatable or swivelable about vertical axes respectively independent of each other at frame which is connected fixed to mast itself braced by ropes
WO2003069156A1 (en) * 2002-02-14 2003-08-21 Aloys Wobben Wind energy turbine
US20030168864A1 (en) * 2002-03-08 2003-09-11 William Heronemus Offshore wind 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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11118568B2 (en) 2014-08-15 2021-09-14 Vestas Wind Systems A/S Control of a wind turbine with a fault condition
WO2017108050A1 (en) * 2015-12-22 2017-06-29 Vestas Wind Systems A/S Methods for mounting or dismounting a wind turbine component of a multirotor wind turbine
CN108700022A (en) * 2015-12-22 2018-10-23 维斯塔斯风力系统有限公司 The method of the wind turbine component of installation or dismounting multi-rotor wind turbine
US11365714B2 (en) 2015-12-22 2022-06-21 Vestas Wind Systems A/S Methods for mounting or dismounting a wind turbine component of a multirotor wind turbine

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Application publication date: 20120104