WO2010143214A1 - Générateur marin flottant alimenté par cerf-volant - Google Patents

Générateur marin flottant alimenté par cerf-volant Download PDF

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Publication number
WO2010143214A1
WO2010143214A1 PCT/IT2009/000260 IT2009000260W WO2010143214A1 WO 2010143214 A1 WO2010143214 A1 WO 2010143214A1 IT 2009000260 W IT2009000260 W IT 2009000260W WO 2010143214 A1 WO2010143214 A1 WO 2010143214A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator according
aeolian generator
tropospheric aeolian
offshore
infrastructure
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/IT2009/000260
Other languages
English (en)
Inventor
Massimo Ippolito
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.)
Sequoia Automation SRL
Original Assignee
Sequoia Automation SRL
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 Sequoia Automation SRL filed Critical Sequoia Automation SRL
Priority to PCT/IT2009/000260 priority Critical patent/WO2010143214A1/fr
Publication of WO2010143214A1 publication Critical patent/WO2010143214A1/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
    • F03D5/06—Other wind motors the wind-engaging parts swinging to-and-fro and not rotating
    • 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
    • F05B2240/80—Platforms for stationary or moving blades
    • 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
    • F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
    • 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
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • 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
    • 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
    • Y02E10/727—Offshore wind turbines

Definitions

  • the present invention deals with an offshore infrastructure for a tropospheric aeolian generator.
  • HAWT Horizontal Axis Wind Turbine
  • VAWT Vertical Axis Wind Turbine
  • Object of the present invention is overcoming this inherent problem, by providing an offshore infrastructure for a tropospheric aeolian generator, which employs a novel and different concept for wind energy exploitation, by transferring and adapting to the offshore environment the emerging technology just developed for the high altitude wind generator of the Applicant of the present application.
  • the inventive generator employs highly efficient flying kites to intercept the high altitude wind energy, then it transfers the collected and noble mechanical energy through a couple of cables driving a set of electric generator/motors located at ground level .
  • the first prototype of the Applicant's generator dates back to 2006 and demonstrated for the first time the possibility to collect high altitude wind energy in an efficient and economically convenient way.
  • the main characteristics of the system make it particularly suitable for offshore applications.
  • the weight of the generator and of the hosting offshore infrastructure can be a fraction of the weight of a floating windmill, with evident advantage in terms of cost saving.
  • a first important consideration is that there is no need for the tall tower supporting the hub and the blades of a classic windmill.
  • the offshore infrastructure simply employs a take-off arm, called “stem”, that can be extremely slender and light and can be oriented along the pull direction immediately after the take-off, so that no high bending loads can act on the arm during the operations.
  • the take-off arm can also be fully lowered for the periodical maintenance of the system and during extreme weather conditions, so that a better stability of the platform can be achieved in harsh environment.
  • the floating platform will have an appropriate weight distribution and overall dimensions in order to give the necessary amount of buoyancy, stability and sea keeping qualities.
  • a preferential design employs a flared axis symmetric shape, similar to the 12-meter discus buoys successfully employed over the years for ocean monitoring, but with improved stability thanks to a calculated amount of submersed heavy ballast.
  • the platform comprises several watertight compartments for generator, electronics, pieces of equipment.
  • the hull's widening diameter upward and its consequent increasing displacement grant a desirable reduced variation between light waterline and load waterline when the vertical component of the kite's pull tends to lift the platform.
  • a key role in determining the dynamic behaviour on duty of the offshore tropospheric aeolian generator is played by the mooring line (typically a metal chain or a fibre rope) , that is anchored on the sea bottom with a sinker like commonly done, but is connected to the floating platform, for instance through a mooring yoke or a chain plate, in a position lying close to the estimated average direction of the pull of the kite's control cables, so that the resulting lever arm between the mooring line and the kite's control cables can generate only a negligible amount of overturning moment if compared with waves and wind effects on the platform stability.
  • the mooring line typically a metal chain or a fibre rope
  • tropospheric aeolian generator can tolerate bigger oscillations than HAWT, VAWT and other wind energy systems operating in offshore environment.
  • this particular arrangement of the mooring line and the axis symmetric design give the floating platform the possibility to orient itself accordingly to the kite' s pulling direction, so that a certain amount of displacement can be not only tolerated, but even exploited to reduce the number and the size of the mooring lines, with evident technical advantage and cost saving.
  • the movements of the floating platform due to the waves can also be transformed in useful energy by the generator with the electronic control of the kite's control and power cables.
  • the movements of the floating platform on the sea surface can be seen like the composition of a short period rotation around the platform's vertical axis, driven by the typical figure of eight kite's trajectories, and a long period rotation and translation around the projection of the dead weight on the sea surface, driven by the average wind direction and ocean current and limited by the mooring line length.
  • One of the advantages of the proposed solution is that the generator can rotate about the vertical axis without the need for a big and expensive bearing or a curved linear guide and the relative kinematic chains, which are mandatory for inland applications .
  • the mooring yoke or the chain plate can rotate about the vertical axis of the platform thanks to a cost effective solution represented, for instance, by a rough bearing and suitable to operate in the marine environment realized through a series of wheels equipped with rubber tires free to rotate along a groove machined or added to the hull.
  • the electronic system needs to control mainly the elevation of the take-off arm, but can obviously modify the kite's trajectories so that the average pull direction can compensate drift and bad attitude of the platform due to marine current and wind load on the platform.
  • the offshore infrastructure of the present invention can use the third dimension (the altitude) to separate the air space of the flying wings so that they always find undisturbed wind front and the floating generators can be placed closer one each other.
  • a big economical advantage is the reduced length of the submarine electric cables constituting the farm's electric grid.
  • the electrical cables can follow the mooring line, and they will have the right length to compensate tide and waves effects.
  • the weight of the sinker at the sea bottom is lower than the breaking strength of the mooring line and calculated so that, under the sea and wind action, over certain load limits, the sinker can be dragged along the sea bottom dissipating through friction the excess of energy.
  • the original position of the sinker can be restored by manual extraordinary maintenance or automatically through the kite's pull action or through bow thrusters installed on board.
  • the produced energy can be transmitted ashore with an electric line, preferably of the high voltage kind, or can be employed offshore for different purposes.
  • a preferential use of the generated energy is the extraction and separation of noble metals from the salted sea water, in particular uranium, directly onboard, or on board of another suitably equipped floating platform, or on board of a ship anchored to the sea bottom.
  • the generated energy can be used to generate fuels, to capture carbon dioxide, for the desalinisation of seawater and similar applications.
  • the processed liquid or gas can be stored on a floating tank.
  • Figure 1 is a side view of the offshore infrastructure of a preferred embodiment of the tropospheric aeolian generator of the present invention in a step of its operating cycle;
  • Figure 2 is a side view of the offshore infrastructure of the tropospheric aeolian generator of Figure 1 in a step of its operating cycle;
  • Figure 3 is a schematic representation of the displacement of the offshore infrastructure under wind and sea loads.
  • Figure 4 is a perspective view of a part of the offshore aeolian generator according to a variation of the present invention.
  • the floating platform 1 hosting an aeolian tropospheric generator 2 driven by flying kites 3 (in turn driven by control cables 3' ) and equipped with a take-off arm 4 is anchored to the sea bottom through a mooring line 5 connected to a sinker 6.
  • the produced electric energy is transferred through a submarine electric cable 7 following the mooring line and connected to a switchbox (not shown) .
  • the generator 2 is shown at rest and the kite 3 is hanging supported by the take-off arm 4.
  • the mooring line 5 is connected to the floating platform 1 in a position close to the line identifying the average pull direction 8 of the flying kite 3. With reference to Figure 2, the generator 1 is shown on duty and the mooring line 5 is under tension and collinear with the kite's 3 pull direction.
  • the platform 1 can rotate (rotation direction 10) about its vertical axis 10' driven by the typical figure of eight kite's trajectories and can translate and rotate (along respective directions 11) around the projection 12 of the sinker 6 on the sea surface driven by the average wind and current direction.
  • the mooring line 5 is connected to the hull of the floating platform 1 through a rough bearing realized with a rotating ring 17 and a series of rotating wheels 14 equipped with rubber tires 15.
  • the wheels 14 roll in a groove 16 and the mooring line 5 is directly linked to the bearing with a mooring yoke 13.
  • the water displacing hull of the floating platform 1 has an axis symmetrical shape, like the round one shown in the Figures, or, also as a non-limiting example, has a squared shape or the like.
  • the floating platform 1 is adapted to be placed on a ship (not shown) operating as a water displacing hull and anchored to the sea bottom.
  • the floating platform 1 has a ballast keel .

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)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne une infrastructure en mer pour un générateur éolien troposphérique, l'infrastructure comprenant une ou plusieurs plates-formes flottantes (1) pouvant accueillir un générateur éolien troposphérique (2) alimenté par des cerfs-volants attachés (3) et une ou plusieurs lignes d'amarre (5) fixées au fond marin par l'intermédiaire d'une ou de plusieurs crapauds (6).
PCT/IT2009/000260 2009-06-12 2009-06-12 Générateur marin flottant alimenté par cerf-volant Ceased WO2010143214A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000260 WO2010143214A1 (fr) 2009-06-12 2009-06-12 Générateur marin flottant alimenté par cerf-volant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000260 WO2010143214A1 (fr) 2009-06-12 2009-06-12 Générateur marin flottant alimenté par cerf-volant

Publications (1)

Publication Number Publication Date
WO2010143214A1 true WO2010143214A1 (fr) 2010-12-16

Family

ID=42237041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2009/000260 Ceased WO2010143214A1 (fr) 2009-06-12 2009-06-12 Générateur marin flottant alimenté par cerf-volant

Country Status (1)

Country Link
WO (1) WO2010143214A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20159172A1 (it) * 2015-12-24 2016-03-24 Kite Gen Res Srl Infrastruttura galleggiante offshore per lo sfruttamento di energia eolica
US9308975B2 (en) 2013-12-30 2016-04-12 Google Inc. Spar buoy platform
US10309374B2 (en) 2016-12-01 2019-06-04 Makani Technologies Llc Energy kite winching using buoyancy
US10557458B2 (en) 2016-11-30 2020-02-11 Makani Technologies Llc Integrated tether and mooring with floating platform for energy kite
CN111102137A (zh) * 2019-12-04 2020-05-05 韩斌 海上柔性风力发电技术
WO2020131255A1 (fr) * 2018-12-17 2020-06-25 Makani Technologies Llc Bouée spar
US11015574B2 (en) 2018-01-22 2021-05-25 Vestas Wind Systems A/S Method for controlling an airborne object coupled to a wind turbine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069156A1 (fr) * 2002-02-14 2003-08-21 Aloys Wobben Eolienne
US20030168864A1 (en) * 2002-03-08 2003-09-11 William Heronemus Offshore wind turbine
GB2439215A (en) * 2006-06-15 2007-12-19 Kitetech Energy Systems Ltd Power generator using oscillations of a kite
WO2009022979A2 (fr) * 2007-08-16 2009-02-19 Energy Potential Ab Unité éolienne et procédé de génération d'énergie électrique
WO2009147692A2 (fr) * 2008-06-04 2009-12-10 Massimo Ippolito Infrastructure d'entraînement et de mise en mouvement assistée de capteurs pour générateur éolien troposphérique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069156A1 (fr) * 2002-02-14 2003-08-21 Aloys Wobben Eolienne
US20030168864A1 (en) * 2002-03-08 2003-09-11 William Heronemus Offshore wind turbine
GB2439215A (en) * 2006-06-15 2007-12-19 Kitetech Energy Systems Ltd Power generator using oscillations of a kite
WO2009022979A2 (fr) * 2007-08-16 2009-02-19 Energy Potential Ab Unité éolienne et procédé de génération d'énergie électrique
WO2009147692A2 (fr) * 2008-06-04 2009-12-10 Massimo Ippolito Infrastructure d'entraînement et de mise en mouvement assistée de capteurs pour générateur éolien troposphérique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"GREEN", EUREKA, FINDLAY PUBLICATIONS LTD., DARTFORD, GB, vol. 20, no. 10, 1 October 2000 (2000-10-01), pages 30/31, XP000959839, ISSN: 0261-2097 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9308975B2 (en) 2013-12-30 2016-04-12 Google Inc. Spar buoy platform
US9327845B2 (en) 2013-12-30 2016-05-03 Google Inc. Spar buoy platform
ITUB20159172A1 (it) * 2015-12-24 2016-03-24 Kite Gen Res Srl Infrastruttura galleggiante offshore per lo sfruttamento di energia eolica
EP3184813A1 (fr) * 2015-12-24 2017-06-28 Kite Gen Research S.R.L. Infrastructure flottante en mer destinée à exploiter l'énergie éolienne
US10557458B2 (en) 2016-11-30 2020-02-11 Makani Technologies Llc Integrated tether and mooring with floating platform for energy kite
US10309374B2 (en) 2016-12-01 2019-06-04 Makani Technologies Llc Energy kite winching using buoyancy
US11015574B2 (en) 2018-01-22 2021-05-25 Vestas Wind Systems A/S Method for controlling an airborne object coupled to a wind turbine
WO2020131255A1 (fr) * 2018-12-17 2020-06-25 Makani Technologies Llc Bouée spar
CN111102137A (zh) * 2019-12-04 2020-05-05 韩斌 海上柔性风力发电技术

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