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WO2010018590A1 - Éolienne à axe horizontal - Google Patents

Éolienne à axe horizontal Download PDF

Info

Publication number
WO2010018590A1
WO2010018590A1 PCT/IN2009/000172 IN2009000172W WO2010018590A1 WO 2010018590 A1 WO2010018590 A1 WO 2010018590A1 IN 2009000172 W IN2009000172 W IN 2009000172W WO 2010018590 A1 WO2010018590 A1 WO 2010018590A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind turbine
high efficiency
tower
horizontal axis
axis wind
Prior art date
Application number
PCT/IN2009/000172
Other languages
English (en)
Inventor
Yogesh Sonar
Original Assignee
Yogesh Sonar
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 Yogesh Sonar filed Critical Yogesh Sonar
Publication of WO2010018590A1 publication Critical patent/WO2010018590A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0296—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • 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

Definitions

  • the present invention relates to a horizontal axis wind turbine and more particularly problem generated by high efficiency rotor, such as Tower vibration, Rotor racing, Tilting of rotor axle, Shocks by Wind gust, Gyroscopic effect, Material fatigue, Overloading, Friction & RPM limitation etc.
  • high efficiency rotor such as Tower vibration, Rotor racing, Tilting of rotor axle, Shocks by Wind gust, Gyroscopic effect, Material fatigue, Overloading, Friction & RPM limitation etc.
  • Wind turbines are well known devices used to extract energy from the wind.
  • This one source is non ⁇ conventional even though not widely use due to high investment & expensive to maintain.
  • tail set at offset distance from yaw pivot point to control on over speed.
  • rotor area regarding wind direction minimizes with increases wind speed means above rated-wind-speed, it means wind power after rated-wind-speed has spilled due to tail, in short power coefficient drastically decrease after rated-wind-speed. This one is drawback of small wind turbine.
  • Concentrating wind Turbine (three blades) rotor & Enflo wind turbine has efficiency more than the Bet'z theoretical limit (59.9).
  • Another high efficiency rotor technology such as two and one blade rotor, which has efficiency near about 45%.
  • Such type of rotor has high RPM, that's why another high RPM related problems are generated as stated above, thereby such high efficiency rotor are not comfortable for large scale.
  • the present invention is developed in view of the above problems regarding the conventional technology.
  • the principle object of this invention is to make such Wind Turbine, which has Low Cost, High Efficiency & Very Low Maintenance.
  • Another object of this invention is the system work very well by means without resisting high RPM related problems. It means the rotor can rotate/racing to gain there natural optimum efficiency irrespective of its RPM, mis all be done by using simple passive system.
  • tail vane effect - In small wind turbine designs, tail vane is set at the back of rotor. Therefore tail vane vibrates due to shadow effect of rotor. These vibrations of tail vane transmit in whole system thereby whole system gets affected.
  • the present invention is a downwind type wind turbine but work as upwind type wind turbine therefore this wind turbine not depends on tail vain to take a direction of rotor toward wind flow, but in present wind turbine tail vain is provided to make rotor direction toward wind direction as early as possible, to minimize power loss.
  • vane is set at back of rotor with flexible attachment 5 thereby vibration controls or absorb and do not affect the whole system.
  • Fig 1 IA The working examples of present wind turbine on resonance vibrations means has shown in Fig 1 IA, and at high wind speed example shown in Fig 1 IB.
  • tower is safe from Shocks, Gust, Cyclic stress, Vibration etc. Therefore tower does not get fatigue or suddenly overload that's why it does not need a very high strength tower.
  • lattice type tower is preferred which has low cost and broad base means.
  • Fig IA shows three dimensional view of wind turbine according to the present invention.
  • Fig IB shows full assembly in front view, side view and top view of the wind turbine according to the present invention.
  • Fig 2 shows close up of three dimensional view of wind turbine head (all components above vertical bearing) according to the present invention.
  • Fig 3A illustrates internal component of nacelle according to the present invention.
  • Fig 3B shows Rotor Axle close up of Fig 3 A.
  • Fig 3C shows axle bearing surrounded by numbers of spring of FIG 3 A.
  • Fig 4 shows front, side & top views of vane with there clause up of FIG 1.
  • Fig 5 illustrate front, side & top views of Counter Weight with there internal component position such as Generator & Gear Box of the wind turbine according to the present invention.
  • Fig 6 shows front, side & top views of Horizontal Level Unit the wind turbine according to the present invention.
  • Fig 7 shows front, side & top views of Main Universal Joint according to the present invention.
  • Fig 8 shows compressive spring & two universal joints attached to both ends of spring according to the present invention.
  • Fig 9 illustrate power transmission component according to the present invention.
  • Fig 10 shows front, side & top view of sliding joint and; universal joint which ended on both side of sliding joint according to the present invention.
  • Fig HA illustrate an example of side-to-side coinciding vibration (resonance frequency) condition of wind turbine head according to the present invention.
  • Fig HB illustrate an example of side-to-side vibration at high RPM by means at High wind speed (High wind speed means wind speed more than resonance frequency's wind speed) where amplitude has short with high frequency of wind turbine head according to the present invention.
  • Fig HC illustrate an example of back & forth (vibration along axle) coinciding vibration with there close up of wind turbine head according to the present invention.
  • Fig 12 illustrate top view of wind turbine head, shows vibrations of vane and base point (center of vertical bearing) from where head can revolve at 360° according to the present invention.
  • Fig 13 illustrate some turning phases of wind turbine head, shows when wind direction suddenly flow from cross direction then head of wind turbine turn to opposite direction to line up with new wind flow; here turning points shown by thin circle, according to the present invention.
  • Wind Speed (wind speed more than resonance wind speed) ⁇ l - Deflection of Sub-Tower from mean position at High Wind
  • Wind power is non conventional source of energy due to high investment and expensive to maintain in such plants this source is not widely use. Vibration, Gyration, Gust etc are the main reasons of high investment.
  • vibrations are at any phase are controlled up to there resonance vibrations and also controlled gyroscopic & gust effect.
  • This system avoids the complicated system like Yaw control, Pitch control etc. Therefore the cost and maintenance cost of this system will be least.
  • Nacelle 1 - Nacelle 1 comprises rotor axle 16 in such way that can axle 16 vibrate to manage tilting or gyroscopic effect & low scale back impact, wherein axle 16 holding by two bearing 1.2 & such bearing surrounded by numbers of spring 13 to manage tilting effect, one bole joint LS attached to the end of the axel 16, bole joint LS supported by spring 1.6 to manage low scale back impact due to gust or fluctuation of wind flow, at central portion of axle 16 one driver bevel gear 1 ⁇ has attached to transmit power from axle 16 to driven bevel gear 1.7, driven bevel gear 1.7 supported by back side bearing 1.2 with the help of supporting component 1.8, driven bevel gear 1.7 forward power with vibration to universal joint which linked with Linear Sliding Joint.
  • Sub Tower 2 - nacelle 1 mounted on sub tower 2; and sub tower 2 means comprises two solid parallel plates which are mounted on base of head 6 with the help of main universal joint 17. Thereby bottom end of sub tower 2 works as base point and top end movement up to some limit at horizontal plain means, mean position maintain by supporting number of spring 3, 13 means.
  • Two parallel plates of sub tower 2 are parallel with wind direction thereby wind flow easily passes through sub tower 2 by means wake or shadow effect are negligible means in other ward cyclic effect negligible here; and such parallel plates give high structural strength as compare to tubular shape tower.
  • sub-tower 2 two parallel plates
  • main tower 10 & sub tower 2 are not in one line thereby this one is downwind type wind turbine but work like as up-wind type wind turbine.
  • Main Back Spring 3 This main back spring 3 used to absorb or control back and forth movements or vibrations or shocks of sub-tower 2 thereby nacelle 1.
  • One end of this spring mounted on Base of Head 6 and another end to back side sub- tower 2 with the help of two universal joints 19.
  • Vane 4 - Vane 4 attached to back side of Base of Head 6. Vane 4 is flexible up to some limit with help of number of spring 5.7 to avoid there vibration to transmits in whole system.
  • a Guide Plat 4.1 attached at back side of vane 4 to guide vane 4, when wind flow suddenly flow from opposite wind direction.
  • the present invention is down-wind type wind turbine therefore rotor automatically line up with wind direction. But its need to line up with wind direction at very short time to avoid power loss. In account such problem, vane 4 has given, to line up rotor as early as possible to avoid power loss. Second reason is when wind direction suddenly flow from opposite (back / rear side) direction than rotor spine with opposite direction to avoid such loss vane is provided. The working of this vane at opposite wind flow has shown in Fig 13 with the help of some number of phases, in first phase Vane Guide Plat 4.1 mismatch with wind direction, because Vane Guide Plat 4.1 is one side edge plate, thereby vane turn one side shown in second phase, another phase shows remaining steps regarding line up with cross wind direction. Reference Fig 1, Fig 2, Fig 4, Fig 12, Fig 13.
  • Base of Head 6 - Main tower 10 & sub tower 2 are not in one line there extension distance covered by using a plat means know as Base of Head 6, means this plat is holding device especially for universal joint 17 (thereby sub tower 2 ), side spring 13 , main back spring 3 & vane 4 etc.
  • Base of Head 6 means this plat is holding device especially for universal joint 17 (thereby sub tower 2 ), side spring 13 , main back spring 3 & vane 4 etc.
  • Supporter 7 - This one is supporting plate for Base of Head 6.
  • Main Vertical Bearing 8 This one is vertical roller bearing thereby head can rotate at 360° and provide strong support.
  • Horizontal Level unit 9 This unit helps to set Base of Head 6 horizontal with ground after complete assembly. It has two flange 9.1 attached by three stud 92. Reference Fig 1, Fig 6.
  • Counter Weight 11 The heavy weight generator 11.1 and gear box 11.2 are used as counter weight for balancing means, thereby the weights limitations of generator 11.1 and gear box 11.2 increase and flexibility for regular maintenance.
  • Counter Weight 11 maintain in such way thereby wind force do not effect to rotor direction which lined with wind direction.
  • Counter Weight 11 has triangular bar with tetrahedron ends thereby minimizes resistance of wind flow from front and both sides, Counter Weight 11 attached to base of Head 6 by using two parallel plates 18 ( parallel to ground also) thereby side to side wind flow do not resist to counter Weight 11 .
  • Power Transmission Unit 12 In Power Transmission Unit 12, low speed axle 16 transmit power with all phase vibration, such power provide to gear box 11.2 and/or than generator 11.1 with the help of small universal joints 12.1, connecting roads 12.3 and sliding joints 12.2.
  • Reference Fig 5, Fig 9, Fig 10 [79] Side Spring 13 - This two Side Spring 13 used to absorb or control side-to- side movements or vibrations or shocks of sub-tower 2 thereby nacelle 1.
  • One end of this springs mounted on Base of Head 6 and another end to sub-tower 2 with the help of some universal joints 19.
  • Rotor 15 - This invention prefer high efficiency rotor, such type of high efficiency rotor has high lift to drag ration thereby rotor spine with high RPM, this invention purpose to use such type of high efficiency rotor with controlling there side effect regarding RPM.
  • Present wind turbine involve numbers of innovative steps, some step(s) applicable to solve specific problem(s) of conventional wind turbine such as Tower vibration, Rotor racing, Tilting of rotor axle, Shocks by Wind gust, Gyroscopic effect, Material fatigue, Overloading, Friction & RPM limitation etc.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

L'invention porte sur une éolienne à axe horizontal comprenant: un pylône divisé en deux parties soit: un pylône principal (10) et un sous-pylone (02) non alignés, leur décalage axial correspondant à la distance couverte par une plaque de guidage (06); une nacelle (01) montée sur le sous-pylône flexible (02) permettant à la nacelle (01) de vibrer dans un plan horizontal de manière à gérer les effets des surcharges sur la nacelle (01) dans le plan horizontal; et un moyeu de rotor (16) flexible pouvant pivoter et vibrer dans la nacelle (01). Les vibrations et chocs du moyeu de rotor (16) sont contrôlés ou absorbés par plusieurs ressorts et par les interactions mutuelles du sous-pylône flexible (02) et du moyeu du rotor (16). Ainsi, les vibrations et chocs du moyeu du rotor (16) ne sont pas transmis à l'ensemble du système.
PCT/IN2009/000172 2008-11-24 2009-03-13 Éolienne à axe horizontal WO2010018590A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2465MU2008 2008-11-24
IN2465/MUM/2008 2008-11-24

Publications (1)

Publication Number Publication Date
WO2010018590A1 true WO2010018590A1 (fr) 2010-02-18

Family

ID=41668765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2009/000172 WO2010018590A1 (fr) 2008-11-24 2009-03-13 Éolienne à axe horizontal

Country Status (1)

Country Link
WO (1) WO2010018590A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101287140B1 (ko) 2011-11-02 2013-07-17 윤상억 풍력 발전기용 진동 감쇄장치
WO2014125114A1 (fr) * 2013-02-18 2014-08-21 Peter Lutz Éolienne pourvue d'une tour montée à la cardan
CN111219290A (zh) * 2020-03-08 2020-06-02 北京工业大学 可采集多种能源并减振耗能的双风轮自旋转风力发电塔

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916878A1 (de) * 1979-04-26 1980-11-06 Ernst Rogge Windkraftanlage
CN87206813U (zh) * 1987-04-24 1988-07-20 刘心民 低风速风力发电装置
US7004724B2 (en) * 2003-02-03 2006-02-28 General Electric Company Method and apparatus for wind turbine rotor load control based on shaft radial displacement
CN101220797A (zh) * 2007-01-10 2008-07-16 通用电气公司 用于形成风力涡轮机机器的方法及设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916878A1 (de) * 1979-04-26 1980-11-06 Ernst Rogge Windkraftanlage
CN87206813U (zh) * 1987-04-24 1988-07-20 刘心民 低风速风力发电装置
US7004724B2 (en) * 2003-02-03 2006-02-28 General Electric Company Method and apparatus for wind turbine rotor load control based on shaft radial displacement
CN101220797A (zh) * 2007-01-10 2008-07-16 通用电气公司 用于形成风力涡轮机机器的方法及设备

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101287140B1 (ko) 2011-11-02 2013-07-17 윤상억 풍력 발전기용 진동 감쇄장치
WO2014125114A1 (fr) * 2013-02-18 2014-08-21 Peter Lutz Éolienne pourvue d'une tour montée à la cardan
CN111219290A (zh) * 2020-03-08 2020-06-02 北京工业大学 可采集多种能源并减振耗能的双风轮自旋转风力发电塔
CN111219290B (zh) * 2020-03-08 2021-04-30 北京工业大学 可采集多种能源并减振耗能的双风轮自旋转风力发电塔

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