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WO2000045050A1 - Centrale electrique eolienne - Google Patents

Centrale electrique eolienne Download PDF

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Publication number
WO2000045050A1
WO2000045050A1 PCT/SE2000/000155 SE0000155W WO0045050A1 WO 2000045050 A1 WO2000045050 A1 WO 2000045050A1 SE 0000155 W SE0000155 W SE 0000155W WO 0045050 A1 WO0045050 A1 WO 0045050A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriages
wind power
track
power plant
blades
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.)
Ceased
Application number
PCT/SE2000/000155
Other languages
English (en)
Inventor
Alf Israelsson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU25855/00A priority Critical patent/AU2585500A/en
Publication of WO2000045050A1 publication Critical patent/WO2000045050A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F03D5/00—Other wind motors
    • F03D5/04—Other wind motors the wind-engaging parts being attached to carriages running on tracks or the like
    • 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

Definitions

  • This invention concern ' s a wind power plant with many wind absorbing blades arranged in parallel and attached to carriages which move around one, above all laterally, extensible closed circuit with linear generators located alongside the endless track without any moving parts with the exception of the details of the generators attached to the carriages.
  • the plant is constructed by framework towers connected by other frameworks forming a framework construction which rest on a bedding in order to put the plant in a right angle towards the direction of the wind.
  • the purpose of the invention is to obtain a wind power plant built up of very large units with good profitability, high safety of operations and requiring close to non maintenance.
  • the energy obtained by a conventional wind power plant of propellerform is proportional to the swept area of the propeller. Furthermore a large wind power plant obtains a larger effect due to the greater windforces on the higher altitude. But unfortunately the propellers gain weight faster than the effect increases with increasing size, since the weight of the propellers in a conventional propellerplant with two or three blades increases in proportion to the cubic of the radie of the propeller, because the volume of the material is the product of the length, breadth and thickness of the material and because all three approximately increase in proportion to the size. Accordingly the cost of the plant increases in a similar way. The effect however increase in proportion to the swept area i. e. only in square. Consequently there exist an upper limit for profitable size for the conventional plants of propellermodel.
  • the propellerturbine describes a circular surface which is a bad utilization of the windarea, since the velocity of the wind decreases downward and as the side extension is limited.
  • Many small propeller power plants placed at a distance of many hundred meters from each other is an even worser exploitation of the surrounding area, since they must be placed at a relative far distance from each other, up to 1 km, not to get into each outhers wind-shadow. For this reason it is important that each plant cowers a much broader area.
  • Noise is an important factor in localization of the wind power plants and in determining how close to settlement they can be located.
  • the noise consists principally of two components; machine noise and aerodynamic noise.
  • machine noise By introducing linear generators the only machine noise that remain on blade level is that produced by the rolling contact between the carriages and the tracks. Shaft bearings for a linear movement are arranged for the conveyance of the carriages, or if the wheels are provided with a noise-suppressing shed, the noise will be decreased down to relatively low values.
  • the aerodynamic whispering sound which with two-bladed turbines, do not appear in the present plant.
  • the swept area in the present plant can also be enlarged by extending the blades without exponentional weight enlargement which is guilty for conventional propeller blades, as the blades in all its length permits approximately the same bredth as the aerodynamic conditions are essentially the same for the whole winglength at least in a large part of the track, with the exception outermost bendingpart of the track.
  • the blades are attached symmetrically to the carriages, connected one after the other in an oblong and closed track at which a swept effect area is received with the possibility to optional size, without, for that sake, the effect area and the weight of the plant will increase more than the received power, as the blades and its attachments are regularly divided over the whole track.
  • Each blade can also be designed with a considerably lower mass than a conventional propellerblade of the same length.
  • the carriages are arranged either with travelling wheels or journal, bearings for essentially linear motion designed to permit some curvature of the track.
  • the pitch angle regulation will be performed by correcting units attached to each blade. Because the blade will be moving on an oblong track with partially almost straight sections, apply for a large part of the track a specific blade angle essentially for the full extent of the blade contrary to an ordinary propeller, where every radially spread part of the blade in the whole circulation, demand its own blade angle at a certain rotation- and windcondition, something that only partially is possble to realize.
  • a structural element for the wind absorbing blades which rest rotary on a bed, which always adjust itself in a straight angle against the wind.
  • the structural element is equipped with turnable holders attached to carriages and with turnable holders attached to the ground. This makes it possible to quickly and easily raise and lower the plant with winches or the like for maintenance or overhaul.
  • the track and also the blades From the essential centre line of the carriages, the track and also the blades, at which a very stable grip of the blades are achived.
  • the blades are arranged whith a central holder, but not attached to the carriage but to at least one endless cable lacking a solid track.
  • the blades are in its entity attached to the upper part of the upper track or on the lower part of the return track at which the track consists of an oval pipe or the like.
  • the blades both running directions are placed at the same level at which the blades on the back part of the track, considering the direction of the wind, land up in the leeward of the former with considerably less effect Special description of the invention and its essential characteristics
  • Fig 1 shows a view from the front, that is in the direction of the wind, of one half of a complete plant.
  • Fig 2 shows a cross section straight through the long direction of a complete plant.
  • Fig 3 shows a top view of one half of a plant.
  • Fig 4 shows a schematic sketch of a cross section straight through the long direction of a bladeholder with carriages and a linear asynchronous linear generator.
  • Fig 5 shows a schematic sketch of details of a carriage and a linear generator.
  • Fig 6 shows a schematic sketch of guide shafts with inholds at carriage.
  • the wind power plant is built up of one or more framework towers (1), tube towers or masts who are combined with each other through connecting frameworks (2), tubes or girders, so that they form a frame construction (4), which rotary rests on a bed, for example on wheeled carriages (5) which moves on one or more circular tracks of rail (6) or other, for wheels suitable beddings, to adjust the plant in a straight angle against the wind, at which the framework is also built up by one, two or more inclined and consistencing and also supporting framework towers or tube towers with the base resting on wheeled carriages (7) on the back sections of the tracks and combined with those in a line standing towers with horizontal combining trussed frames (8) or girders, at which the upper parts of the inclined towers are combined with vertical frameworks (9) arranged between the lower and upper combining frameworks (2).
  • the frame construction is arranged to automatically, with the help of the wind power, place itself towards the direction of the wind by being placed symmetrically behind the ratable bedding's
  • the windabsorbing blades (11) are essentially parallelly arranged by a carriage (12) each, which runs around a closed track ( 13, 14) in a vertical plane in front of the frame construction, at which each blade is attached at an appropriate distance on each side of the carriage's center by outher bladeholders (15, 16) in such a distance towards the wing tip that the demand of enough steadiness for the windabsorbing blades is fulfild. When necessary even the blades can be attached at an inner bladeholder.
  • the outher bladeholders are turnable attached by bearings at at least one trailing wheel ( 17, 18) or bearings for linear movement ( 19) or similar bearing elements on each side of and on appropriate distance from the centre of the track, at which the trailing wheels or the bearings are arranged to roll on the closed track, for example rail (20, 21) attached on the frame construction, at which the trailing wheels or the bearings are adjusted to the rail, so that the carrier and the blade can not move towards the interior of or towards out of the rotary basic construction.
  • the outher bladeholders are attached at at least one combining girder or holdarm (22, 23) on which is attached an powertransmission line (24) which consist of elongated at each other linked girders (25, 26) who runs around the closed track.
  • the closed track can entirely or partially form the shape of a circle, an ellipse or a similar geometrical representation and partially rectilinear as well. If the blades are allowed to rotate freely around their holders, in the entrance of the end sectors, the inner, towards curve center located sections of the blades, they will move forward because of the abrupt braking of these passages, and the outher sections on the periphery will retain the same movement insted of accelerating in the cornering. If this cornering do not occur, the blades run the risk to break.
  • this cornering can be made more softly by, in more than one combining holdarms (22, 23), these are arranged turnably connected with the outher bladeholders (15, 16) in such a way that they, at straight track, form a rectangle and at curved track is allowed to have the form of parallelogram.
  • every carriage is combined with the beforelying by means of two guide shafts (27, 28) each placed on each side of the center of the carriages, at which the rod ends are put together at suitable distances from the center of each carriage, at which every rod is arranged with infitted springings in one or both ends, at which a certain change of length is permitted, at which the blades are hold essentially at right angles to the track at straight tracks and when entering a curving of the track, the inner tips of the blades placed closest to the center of the curved track are permitted to retard in a suitable and less rapid prolongation than if the blades had been fixed anchored right-angled toward the running direction, at which the blades outher wingtips in a similar fashion are permitted a softer acceleration at the passage to the curved section of the track.
  • the width of the track is thereby adapted to the change of form and is made narrow in corresponding proportions in these sections of the track.
  • the trailing wheels and the linear bearings can be equipped with a spring system (30) for safer, smoother and less clash running.
  • a spring system (30) for safer, smoother and less clash running.
  • carriages can be installed between the carriages of the wings, at which these also are turnable connected with the power transmission line (24).
  • the outlet of energy is made trough one or more through the entire or parts of the track comprising lineare electrical generators (32, 33) at which the linear generators are functioning as rotating electrical generators according to the alternating current or direct current principles with the rotor and stator planned to be cutted up and straightened, at which stators (32) and rotors (33), attached to the frame construction respective the carriages and the power transmission line, are spread parallel to each other through the track of the turbine blades.
  • linear generator As a principal it is constructed as an asynchronous generator with so called squirrel-cage winding or can rotor.
  • the rotor consist of an oblong, flat metal track (34) which is attached to the powertransmission line and the wing fixing girders and stretch lengthways threw sectioning with roundings of the ends fitted in each other which makes this flat track bendebal through the entire track.
  • Each generator can gradually be switched on and off according to electrotechnical methods and devices, or also mechanically during running action, at which the stator is made displaceable from its operational position at the track by, for example resting on rolls (35), arranged between U-girders (36), at which one U-girder is seated below the stator and another in the framework, at which at the displacement a gap or empty space gradually arises between the stator and rotor in such a way that eventually no electrical power can be
  • stator 80 When reconnecting the generator the stator is gradually brought back to the working position creating a very small airgap between the stator and the rotor, at which one or more springs (37) or other known devices are arranged to push the stator in the direction of the rotor, at which one or more wheels (38) arranged at the stator or its holders can be arranged to, isolated against electricity roll towards the rotor in such a way that a certain
  • the generator components are protected against wind, rain- and snowfall by suitable protection (39).
  • the frame construction For raising and lowering the frame construction can be arranged turnable attached by bearings on the turnable bedding and at least to two or more ground fasteners (42) all of which are placed in a straight line.
  • bearings easely mountable and dismountable axle journals are thereby included.
  • the turnable bedding can, above all dealing with large plants with a large moment of inertia, be arranged with motor-driven removal in optional direction through guide by a regulator, at which a faster adjustment of the plant against the wind direction will be achived.
  • the invention is of course not limited to the form of execution described above, but can within the limits of the patent claims be modified in alternative forms of execution.
  • the noise can be muffled by choosing silent running linear bearings, choosing silencing wheel-material and protective housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (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

Concernant les centrales électriques éoliennes mues par une hélice, le poids augmente plus rapidement que l'effet, avec l'accroissement du rayon des ailes, et par conséquent les coûts, ce qui a comme résultat que les centrales deviennent non rentables lorsqu'elles vont au-delà d'une certaine taille. Ce problème a été résolu par de nombreuses lames absorbant le vent hors ligne (11), dont chacune est attachée à un chariot (12) qui circule le long d'une piste en circuit fermé (13, 14). L'énergie ressort via des générateurs électriques linéaires (32, 33) disposés le long de la piste en circuit fermé sans qu'il y ait de pièces mobiles sauf les détails des générateurs (33), qui sont attachés aux chariots. La centrale tolère une extension latéralement, ce qui implique une augmentation de puissance, avec une faible perte de poids et une faible augmentation des coûts. La centrale monte et descend pour des interventions au moyen de treuils auxquels est fixée une construction de châssis (4) au moyen de paliers du lit rotatif et momentanément au socle des fondations, qui peut également être constitué de pontons flottants ou analogues.
PCT/SE2000/000155 1999-01-27 2000-01-27 Centrale electrique eolienne Ceased WO2000045050A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25855/00A AU2585500A (en) 1999-01-27 2000-01-27 Wind power plant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9900246-1 1999-01-27
SE9900246A SE9900246L (sv) 1999-01-27 1999-01-27 Vindkraftverk

Publications (1)

Publication Number Publication Date
WO2000045050A1 true WO2000045050A1 (fr) 2000-08-03

Family

ID=20414240

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/000155 Ceased WO2000045050A1 (fr) 1999-01-27 2000-01-27 Centrale electrique eolienne

Country Status (3)

Country Link
AU (1) AU2585500A (fr)
SE (1) SE9900246L (fr)
WO (1) WO2000045050A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6749393B2 (en) 2001-08-13 2004-06-15 Yevgeniya Sosonkina Wind power plant
RU2254494C2 (ru) * 2003-09-10 2005-06-20 АЛИЕВ Абдулла Сиражутдинович Преобразователь энергии ветра и волн
RU2280785C1 (ru) * 2004-11-30 2006-07-27 Дагестанский государственный университет Ветроэнергетическая установка
RU2281413C1 (ru) * 2005-01-11 2006-08-10 Дагестанский государственный университет Ветроэнергетическое устройство
RU2305795C2 (ru) * 2005-06-24 2007-09-10 ОАО "НПО "Промавтоматика" Ветровая силовая установка
WO2007146155A3 (fr) * 2006-06-06 2008-04-10 Daniel E Power Iii Système pour générer de l'électricité à partir de courants dE fluide
US9359991B2 (en) 2009-10-29 2016-06-07 Oceana Energy Company Energy conversion systems and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114046A (en) * 1975-05-09 1978-09-12 Hosni Labib Yousef Electrical generator employing natural energy to power same
DE3304825A1 (de) * 1983-02-11 1984-08-16 Siegfried Ing. Möbius (grad.), 8000 München Windenergieanlage
US5758911A (en) * 1996-02-07 1998-06-02 Northrop Grumman Corporation Linear motion wind driven power plant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114046A (en) * 1975-05-09 1978-09-12 Hosni Labib Yousef Electrical generator employing natural energy to power same
DE3304825A1 (de) * 1983-02-11 1984-08-16 Siegfried Ing. Möbius (grad.), 8000 München Windenergieanlage
US5758911A (en) * 1996-02-07 1998-06-02 Northrop Grumman Corporation Linear motion wind driven power plant

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6749393B2 (en) 2001-08-13 2004-06-15 Yevgeniya Sosonkina Wind power plant
RU2254494C2 (ru) * 2003-09-10 2005-06-20 АЛИЕВ Абдулла Сиражутдинович Преобразователь энергии ветра и волн
RU2280785C1 (ru) * 2004-11-30 2006-07-27 Дагестанский государственный университет Ветроэнергетическая установка
RU2281413C1 (ru) * 2005-01-11 2006-08-10 Дагестанский государственный университет Ветроэнергетическое устройство
RU2305795C2 (ru) * 2005-06-24 2007-09-10 ОАО "НПО "Промавтоматика" Ветровая силовая установка
WO2007146155A3 (fr) * 2006-06-06 2008-04-10 Daniel E Power Iii Système pour générer de l'électricité à partir de courants dE fluide
US7453166B2 (en) 2006-06-06 2008-11-18 Oceana Energy Company System for generating electricity from fluid currents
US7604454B2 (en) 2006-06-06 2009-10-20 Oceana Energy Company System for generating electricity from fluid currents
AU2007258456B2 (en) * 2006-06-06 2012-03-01 Oceana Energy Company System for generating electricity from fluid currents
US9359991B2 (en) 2009-10-29 2016-06-07 Oceana Energy Company Energy conversion systems and methods
US10060473B2 (en) 2009-10-29 2018-08-28 Oceana Energy Company Energy conversion systems and methods

Also Published As

Publication number Publication date
SE9900246L (sv) 2000-07-28
AU2585500A (en) 2000-08-18
SE9900246D0 (sv) 1999-01-27

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