EP2614252A2 - Dispositif de production d'énergie électrique dans des courants d'eau - Google Patents

Dispositif de production d'énergie électrique dans des courants d'eau

Info

Publication number
EP2614252A2
EP2614252A2 EP11754864.4A EP11754864A EP2614252A2 EP 2614252 A2 EP2614252 A2 EP 2614252A2 EP 11754864 A EP11754864 A EP 11754864A EP 2614252 A2 EP2614252 A2 EP 2614252A2
Authority
EP
European Patent Office
Prior art keywords
mast
holding
turbine
housing
rotor
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.)
Withdrawn
Application number
EP11754864.4A
Other languages
German (de)
English (en)
Inventor
Fritz Mondl
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
Publication of EP2614252A2 publication Critical patent/EP2614252A2/fr
Withdrawn legal-status Critical Current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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/10—Submerged units incorporating electric generators or motors
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/915—Mounting on supporting structures or systems on a stationary structure which is vertically adjustable
    • F05B2240/9151—Mounting on supporting structures or systems on a stationary structure which is vertically adjustable telescopically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/40—Movement of component
    • F05B2250/43—Movement of component with three degrees of freedom
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention relates to a device for generating electrical energy in flowing waters, in particular with tidal flow, wherein a substantially rigid mast, and at least one arranged substantially normal to the mast arm are provided on the at least one boom on both sides of the mast at least one power generating turbine is arranged and the mast is pivotable on all sides about a breakpoint.
  • Tidal power plants are hydropower plants that convert potential and kinetic energy from the tidal range of the ocean into electricity. Here, the natural ocean current is utilized.
  • WO 2008/1140119 A2 describes a turbine system of the type mentioned in the introduction, which has a holding mast with jibs located thereon, with turbines being arranged on these jibs.
  • the entire system is essentially floating in the water to exploit the currents occurring at different depths can. In this case, however, the turbines are charged to different degrees; Furthermore, due to its bulky structure, this system only slowly aligns with the changing flow direction. However, if these turbines are not flown correctly, high loads occur, in particular of the rotor blades, as a result of which they prematurely wear out and have to be replaced.
  • a similar device can also be found in WO 2009/093052 AI.
  • GB 2 348 249 A discloses a device which has a holding mast which is fastened pivotably on the bottom of the river, wherein a turbine with a buoyant body is arranged on the holding mast. Also, this system is due to its bulky design unable to react quickly to changes in the flow, so that no optimal flow of the rotors from the front can be done within a very short time. This increases the susceptibility of the rotor blades in particular, but also the anchoring of the mast to the ground.
  • This object is achieved by a device of the type mentioned above in that the holding mast is pivotable on all sides about a breakpoint, and the turbines are arranged on the boom about a second pivot axis parallel to the boom pivot.
  • the turbine is movable about a horizontally extending pivot axis, so that it can be optimally adapted to the respective ocean current, or self-aligning, while the holding mast, in a breakpoint, such as a ball joint , is fixed on the bottom of the river, is pivotable on all sides.
  • all-round pivotability means a pivotability (of the holding mast) about both a vertical and a horizontal pivot axis, so that the holding mast fixed in the breakpoint at the bottom of the river any position within a hemisphere whose radius corresponds to the holding mast and whose Section in the plane of the riverbed is, can take.
  • the turbines can optimally align in the ocean current, the pivot angle of the mast in one plane is in this case preferably up to 60 ° to the vertical, in the respective flow direction. Due to the optimum flow, the turbines always offer optimum efficiency, in contrast to the concepts that have become known. At the same time, the device still has a simple structure and is inexpensive and easy to maintain.
  • the at least one arm is arranged on a substantially cylindrical holding element, which can be arranged on the holding mast.
  • the holding element is placed on a arranged at the bottom of the water retaining mast, wherein the two longitudinal axes of the holding element and mast essentially coincide.
  • the two turbines are hereby arranged on the arm of the holding element.
  • the holding element at its upper end an eyelet into which a hook, for example, a crane can engage in order to deduct the holding element from the mast.
  • the turbine has a rotor, as well as a housing for receiving a current generator, wherein at least one guide element is preferably arranged on the end of the housing facing away from the rotor. Since the flow directions reverse at low and high tide, a particularly flexible device is necessary. manoeuvrable.
  • the guide element is provided, which has the task of pivoting the turbine, in particular during the flow change in the respective ocean current around the pivot axis arranged parallel to the boom and to stabilize it in this position. It particularly preferably has a fishtail-like shape.
  • a variable-speed generator is arranged in a particularly preferred embodiment of the invention.
  • This generator type has the advantage that it already delivers electric current even with low flow and consequently low rotational speeds of the rotor. For the same reason, an adjustment of the pitch adjustment of the rotor blades of the turbine is not necessary to obtain an optimal rotational power of the rotor for the operation of the generator.
  • the structure of the generator is particularly simple because it does not require a transmission gear and thus no lubrication. When used in a tidal power plant, this is particularly relevant in view of the necessary maintenance intervals of the turbine.
  • the orientation of the turbine is further promoted by the fact that a buoyant body is arranged on the housing, the longitudinal axis of which preferably coincides substantially with the rotor axis of the turbine. Since the retaining mast is automatically pivotable, wherein the angle of pivoting from the vertical depends on the strength of the ocean current, the buoyancy body influences the pivot angle of the mast, so that the actual pivot angle results from the ocean current as a function of the buoyant force.
  • one or more buoyant bodies may also be arranged, for example, on the boom or on the holding element of the device.
  • the housing itself is designed as a buoyant body, which particularly simplifies the construction and maintenance of the device according to the invention.
  • the mast is telescopically extendable, this extension preferably against a spring force takes place.
  • the inclination of the retaining mast from the vertical is determined by the buoyancy of the at least one buoyant body. If, however, its buoyancy is not sufficient to maintain a minimum angle between the mast and the bottom of the river, the mast will be extended in strong currents as soon as the ocean current compensates for the spring force holding the mast in its undiluted ground state and the turbine is positioned by the extension at a greater distance to the water bottom.
  • FIG. 1 shows a schematic view of different operating states of the device according to the invention
  • FIG. 2 shows the positioning of the device of FIG. 1 in the water
  • Fig. 3 is a detail view of the apparatus of Fig. 1 in the turbine.
  • FIG. 1 shows the device 100 according to the invention for obtaining electrical current in different operating states.
  • the device comprises a retaining mast 101, which in the present embodiment of the invention is pivotable in a plane over an anchor or support point 102, as shown by arrow A.
  • a holding element 103 is arranged, which - as shown in the figure 1 - in a simple manner by means of crane 200, which is located for example on a boat 300, placed on the mast 101.
  • FIG. 2 it can be seen how the support member 103 is placed by means of crane 200 on the mast 101 and along the retaining mast 101 below the water line E, which corresponds to the water level at low tide, is arranged.
  • FIG. 3 which shows the arrangement of the holding element 103 in detail on the holding mast 101
  • the holding element 103 has a jib 104, at the two ends of which a respective turbine 106 is arranged.
  • This turbine 106 has a rotor 107 which is in communication with a generator (not shown).
  • the housing 108 of the turbine 106 has a substantially fish-like shape, wherein at the end facing away from the rotor, a fishtail-like guide element 109 is arranged.
  • the housing 108 of the turbine 106 has a substantially fish-like shape, wherein at the end facing away from the rotor, a fishtail-like guide element 109 is arranged.
  • the device 100 according to the invention is particularly reliable and low-maintenance, in particular because of its compact and simple construction and the choice of suitable materials, whereby it is preferably suitable for use especially in coastal areas of oceans.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne un dispositif (100) de production d'énergie électrique dans des courants d'eau, notamment dans des courants de marée, un mât de support (101) sensiblement rigide et au moins un bras disposé sensiblement à la normale relativement au mât de support (101) étant prévus. Sur le au moins un bras (104), des deux côtés du mât de support (101), est montée au moins une turbine (106) produisant du courant. Le mât de support (101) est orientable de tous côtés autour d'un point de fixation (102), et les turbines (106) sont montées sur le bras (104), de manière à pivoter parallèlement au bras (104) autour d'un deuxième axe de rotation.
EP11754864.4A 2010-09-09 2011-09-06 Dispositif de production d'énergie électrique dans des courants d'eau Withdrawn EP2614252A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1500/2010A AT510322B1 (de) 2010-09-09 2010-09-09 Vorrichtung zur erzeugung elektrischer energie in strömenden gewässern
PCT/EP2011/065395 WO2012032048A2 (fr) 2010-09-09 2011-09-06 Dispositif de production d'énergie électrique dans des courants d'eau

Publications (1)

Publication Number Publication Date
EP2614252A2 true EP2614252A2 (fr) 2013-07-17

Family

ID=44587825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11754864.4A Withdrawn EP2614252A2 (fr) 2010-09-09 2011-09-06 Dispositif de production d'énergie électrique dans des courants d'eau

Country Status (3)

Country Link
EP (1) EP2614252A2 (fr)
AT (1) AT510322B1 (fr)
WO (1) WO2012032048A2 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348249B (en) * 1999-03-01 2003-11-05 John Richard Carew Armstrong Buoyant water current turbine
GB0306093D0 (en) * 2003-03-18 2003-04-23 Soil Machine Dynamics Ltd Submerged power generating apparatus
DE102007013293B3 (de) * 2007-03-16 2008-06-26 Voith Patent Gmbh Verfahren und Vorrichtung zum Betrieb eines Unterwasserkraftwerks
JP4558064B2 (ja) 2007-05-15 2010-10-06 富士フイルム株式会社 パターン形成方法
GB0710822D0 (en) * 2007-06-05 2007-07-18 Overberg Ltd Mooring system for tidal stream and ocean current turbines
GB2450624B (en) * 2007-06-30 2011-12-07 John Richard Carew Armstrong Improvements in water turbines
US20090140524A1 (en) * 2007-11-30 2009-06-04 Kejha Joseph B Deployable submarine-hydroelectric generator for sea currents energy harvesting
GB2456786A (en) 2008-01-23 2009-07-29 Pilot Drilling Control Ltd Turbine cowling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012032048A2 *

Also Published As

Publication number Publication date
WO2012032048A3 (fr) 2012-05-10
AT510322A1 (de) 2012-03-15
AT510322B1 (de) 2012-12-15
WO2012032048A2 (fr) 2012-03-15

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