US20100008733A1 - Arrangement for Stabilization of a Floating Foundation - Google Patents
Arrangement for Stabilization of a Floating Foundation Download PDFInfo
- Publication number
- US20100008733A1 US20100008733A1 US12/498,710 US49871009A US2010008733A1 US 20100008733 A1 US20100008733 A1 US 20100008733A1 US 49871009 A US49871009 A US 49871009A US 2010008733 A1 US2010008733 A1 US 2010008733A1
- Authority
- US
- United States
- Prior art keywords
- mooring
- arrangement
- cables
- endings
- foundation
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
-
- 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
-
- 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
-
- 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 invention relates to an arrangement for the stabilization of a floating foundation, which is used offshore to carry a wind-turbine.
- Floating foundations for wind-turbines are known from WO 2006 132 539 A1 and from WO 2006 121 337 A1 showing so called “spar-buoy”. These spar-buoy-types are fixed at a predetermined position by the use of one set of mooring cable.
- FIG. 3 shows a typical spar-buoy foundation according to the state of the art.
- a wind-turbine 1 is mounted on a tower 2 , which is supported by a spar-buoy foundation 3 .
- First endings of the mooring cables 5 are attached to the spar-buoy foundation 3 at a certain position 4 , while second endings of the mooring cables are attached to anchors 6 .
- the level of the position 4 is below the waterline WL.
- the overturning moments are performed by waves and wind while the restoring moment is performed by the weight of the foundation, which acts on the lower end of the foundation.
- FIG. 4 shows with reference to FIG. 3 typical operating loads of a normal spar-buoy foundation.
- the whole structure is generally exposed to an arising overturning moment.
- the overturning moment is defined as multiplication from a wind-load 8 , acting on the wind-turbine 1 , and a lever-arm 9 , which length is defined by the distance between a force centre and the mooring cable attachment 4 .
- the overturning moment is additionally defined as multiplication from the wind load 10 , acting on the tower 2 , and a lever-arm 11 , which length is defined by the distance between the wind-load-force-centre and the mooring cable attachment 4 .
- Last the overturning moment is additionally defined as multiplication from a wave and current load 12 multiplied with an arm-lever 13 , which is defined by the distance between this force centre and the mooring cable attachment 4 .
- the restoring moment is the gravity load 14 of the balancing weight 7 multiplied with a lever-arm 15 , which is defined by the distance from the gravity force centre to the mooring cable attachment 4 .
- An object of the present invention is to provide an improved arrangement for the stabilization of a floating foundation to be used offshore.
- the arrangement for stabilization of a foundation is arranged to carry a wind-turbine mounted on a tower.
- the foundation is fixed with a set of mooring cables.
- First endings of the mooring cables are attached to the foundation at a certain position while second endings of the mooring cables are attached to the floor.
- There is a second set of mooring-cables while first endings of the second set of mooring-cables are attached to the foundation near or at its bottom end. Second endings of the second set of mooring-cables are attached to the floor, too.
- the inventive arrangement allows a higher stabilisation of the floating foundation, which is arranged to carry a wind-turbine.
- the inventive arrangement is cheap and is easy to implement even at older locations, which are already at work.
- FIG. 1 shows a spar-buoy foundation according to the invention
- FIG. 2 shows with reference to FIG. 1 operating loads of the inventive spar-buoy foundation
- FIG. 3 shows a typical spar-buoy foundation according to the state of the art.
- FIG. 4 shows with reference to FIG. 3 typical operating loads of a normal spar-buoy foundation.
- FIG. 1 shows a spar-buoy foundation according to the invention.
- a wind-turbine 1 is mounted on a tower 2 , which is supported by a spar-buoy foundation 3 .
- First endings of the mooring cables 5 are attached to the spar-buoy foundation 3 at a certain position 4 , while second endings of the mooring cables are attached to anchors 6 .
- the level of the position 4 is below the waterline WL.
- First endings of the mooring cables 17 are attached to the spar-buoy foundation 3 near or at the bottom end of the foundation 3 .
- Second endings of the mooring cables 17 are attached to the anchors 6 , preferably. It is also possible to use another set of anchors for this mooring-cables 17 .
- the two sets of mooring cables 5 and 17 serve to stabilise the foundation. Therefore the restoring moment will be a combination of a first moment, arising from the weight of the lower end of the foundation, and a second moment, arising from differential forces in the mooring cables 5 and 17 .
- FIG. 2 shows with reference to FIG. 1 typical operating loads of the inventive spar-buoy foundation 3 .
- the whole structure is generally exposed to an arising overturning moment.
- the overturning moment is defined as multiplication from a wind-load 8 , acting on the wind-turbine 1 , and a lever-arm 9 , which length is defined by the distance between a wind-load-force-centre and the mooring cable attachment 4 .
- the overturning moment is additionally defined as multiplication from the wind load 10 , acting on the tower 2 , and a lever-arm 11 , which length is defined by the distance between the wind-load-force-centre and the mooring cable attachment 4 .
- Last the overturning moment is additionally defined as multiplication from a wave and current load 12 multiplied with a arm-lever 13 , which is defined by the distance between this force centre and the mooring cable attachment 4 .
- the restoring moment is the horizontal component 18 of a second mooring cable force 19 , multiplied with an arm 20 from the attachment point AT of the second set mooring cables 17 to the attachment point 4 of the first set of mooring cable 5 .
- the mooring arrangement of the spar-buoy foundation the same loading situation will lead to about 3 m displacement of the tower top and about 1.5 degrees maximum inclination. So the inventive arrangement leads to a higher stiffness.
- first set of mooring-cable 5 and/or the second set of mooring cable 17 are fitted with tensioning devices, to allow an adjustment of the relative tautness of the particular set of mooring cable.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08012310.2 | 2008-07-08 | ||
EP08012310.2A EP2143629B1 (en) | 2008-07-08 | 2008-07-08 | Arrangement for stabilization of a floating foundation |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100008733A1 true US20100008733A1 (en) | 2010-01-14 |
Family
ID=40206552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/498,710 Abandoned US20100008733A1 (en) | 2008-07-08 | 2009-07-07 | Arrangement for Stabilization of a Floating Foundation |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100008733A1 (es) |
EP (1) | EP2143629B1 (es) |
CN (1) | CN101624964A (es) |
ES (1) | ES2408326T3 (es) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100099807A1 (en) * | 2008-10-17 | 2010-04-22 | Carlise Joseph R | Method of controlling gas hydrates in fluid systems |
US20100099814A1 (en) * | 2008-10-17 | 2010-04-22 | Conrad Peter G | Method of controlling gas hydrates in fluid systems |
US20120201608A1 (en) * | 2011-02-04 | 2012-08-09 | Sidney Irving Belinsky | Foundation for offshore wind turbine and method and means for its transportation and installation in deepwaters |
US20130233231A1 (en) * | 2010-11-04 | 2013-09-12 | University Of Maine System Board Of Trustees | Floating Wind Turbine Platform and Method of Assembling |
US9458373B2 (en) | 2010-12-16 | 2016-10-04 | Ecolab Usa Inc. | Composition and method for reducing hydrate agglomeration |
US9518564B2 (en) | 2010-11-04 | 2016-12-13 | University Of Maine System Board Of Trustee | Floating hybrid composite wind turbine platform and tower system |
US20170067449A1 (en) * | 2015-04-23 | 2017-03-09 | Continuum Dynamics, Inc. | Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations |
US10196112B2 (en) * | 2017-03-16 | 2019-02-05 | Dalian University Of Technology | Adaptive observation platform device for sea surface |
US10208734B2 (en) | 2015-04-23 | 2019-02-19 | Continuum Dynamics, Inc. | Lift-driven wind turbine with force canceling blade configuration |
US11014637B2 (en) | 2019-02-21 | 2021-05-25 | Vl Offshore, Llc | Motion-attenuated semi-submersible floating-type foundation for supporting a wind power generation system |
US11486362B2 (en) * | 2018-07-20 | 2022-11-01 | Aerodyn Consulting Singapore Pte Ltd | Single-point mooring wind turbine |
US11939032B2 (en) | 2019-02-21 | 2024-03-26 | Vl Offshore, Llc | Floating-type foundation for supporting a wind power generation system and including a stabilized power cable, system of floating-type foundations, and a method of stabilizing the power cable |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2727813T3 (pl) | 2008-04-23 | 2018-07-31 | Principle Power, Inc. | Stabilizowana za pomocą kolumn platforma morska z płytami tłumiącymi typu pułapka wodna i asymetrycznym systemem cumowniczym podtrzymująca morskie turbiny wiatrowe |
CN102392796B (zh) * | 2011-10-11 | 2013-07-03 | 苏州市思玛特电力科技有限公司 | 一种基于主动平衡控制的海上悬浮式风力发电机组 |
PT2789850T (pt) * | 2011-12-05 | 2017-01-02 | Mitsubishi Heavy Ind Ltd | Aparelho gerador de turbina de vento de tipo flutuante |
JP6108445B2 (ja) * | 2013-03-13 | 2017-04-05 | 戸田建設株式会社 | 浮体式洋上風力発電設備 |
ES2681271T3 (es) | 2013-05-20 | 2018-09-12 | Principle Power, Inc. | Sistema y procedimiento para controlar plataformas de aerogeneradores marinos flotantes |
CN107148381B (zh) | 2014-10-27 | 2019-05-28 | 原理动力有限公司 | 海上能量转换器装置的浮动连接器系统及安装该系统的方法 |
CA2989615C (en) | 2015-06-19 | 2023-09-26 | Principle Power, Inc. | Floating wind turbine platform structure with optimized transfer of wave and wind loads |
CN107965422B (zh) * | 2017-12-15 | 2019-05-24 | 上海海事大学 | 一种悬链线型组合式海上风力机支撑结构体系 |
US11225945B2 (en) | 2019-05-30 | 2022-01-18 | Principle Power, Inc. | Floating wind turbine platform controlled to optimize power production and reduce loading |
EP4079621B1 (en) * | 2021-04-21 | 2024-01-31 | Costantino Bandiera | Tail spar buoy offshore upwind hawt foundation |
CN114044090B (zh) * | 2021-12-17 | 2023-06-20 | 中交第一航务工程局有限公司 | 漂浮式水上基础 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US3778854A (en) * | 1971-03-16 | 1973-12-18 | Santa Fe Int Corp | Mooring and oil transfer apparatus |
US4653960A (en) * | 1986-05-20 | 1987-03-31 | Chun Joong H | Submersible offshore drilling production and storage platform with anti-catenary stationing |
US6210072B1 (en) * | 1996-10-03 | 2001-04-03 | Fredrick Marelius | Method and apparatus for erosion protecting a coast |
US20030084961A1 (en) * | 2001-11-06 | 2003-05-08 | Fmc Technologies, Inc. | Submerged flowline termination at a single point mooring buoy |
US20040037651A1 (en) * | 2000-06-21 | 2004-02-26 | Khachaturian Jon E. | Articulated multiple buoy marine platform apparatus and method of installation |
US6856036B2 (en) * | 2001-06-26 | 2005-02-15 | Sidney Irving Belinsky | Installation for harvesting ocean currents (IHOC) |
US7105940B2 (en) * | 2004-03-31 | 2006-09-12 | General Electric Company | Mobile renewable energy generator |
US20070001464A1 (en) * | 2005-06-30 | 2007-01-04 | Kothnur Vasanth S | System and method for installing a wind turbine at an offshore location |
US20080089746A1 (en) * | 2004-10-06 | 2008-04-17 | Enertec Ag | (Method of) Construction of a Submerged Floating Foundation With a Blocked Vertical Thrust As a Support Base for the Installation of a Wind Turbine, of an Electrolyser for the Electrolysis of Water and of Other Equipment, Combined With Fish Farming |
US7819073B2 (en) * | 2005-06-06 | 2010-10-26 | Norsk Hydro Asa | Floating wind turbine installation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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NL193365C (nl) | 1987-08-05 | 1999-08-03 | Bluewater Terminal Systems Nv | Stelsel voor het via een flexibele leiding verbinden van een aan een drijvende boei verankerd schip met een aan de zeebodem verankerd werkplatvorm. |
EP0945337A1 (en) | 1998-03-27 | 1999-09-29 | Single Buoy Moorings Inc. | Mooring construction |
AU4373099A (en) * | 1998-05-29 | 1999-12-20 | Single Buoy Moorings Inc. | Transfer pipe system |
AU3808499A (en) | 1998-05-29 | 1999-12-20 | Supramar Ag | Streamlined body for a liquid to flow around at high speed |
WO2003062043A1 (en) | 2002-01-24 | 2003-07-31 | Single Buoy Moorings Inc. | Wave motion absorbing offloading system comprising a slender mooring buoy |
-
2008
- 2008-07-08 EP EP08012310.2A patent/EP2143629B1/en active Active
- 2008-07-08 ES ES08012310T patent/ES2408326T3/es active Active
-
2009
- 2009-06-24 CN CN200910149967A patent/CN101624964A/zh active Pending
- 2009-07-07 US US12/498,710 patent/US20100008733A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778854A (en) * | 1971-03-16 | 1973-12-18 | Santa Fe Int Corp | Mooring and oil transfer apparatus |
US4653960A (en) * | 1986-05-20 | 1987-03-31 | Chun Joong H | Submersible offshore drilling production and storage platform with anti-catenary stationing |
US6210072B1 (en) * | 1996-10-03 | 2001-04-03 | Fredrick Marelius | Method and apparatus for erosion protecting a coast |
US20040037651A1 (en) * | 2000-06-21 | 2004-02-26 | Khachaturian Jon E. | Articulated multiple buoy marine platform apparatus and method of installation |
US6856036B2 (en) * | 2001-06-26 | 2005-02-15 | Sidney Irving Belinsky | Installation for harvesting ocean currents (IHOC) |
US20030084961A1 (en) * | 2001-11-06 | 2003-05-08 | Fmc Technologies, Inc. | Submerged flowline termination at a single point mooring buoy |
US7105940B2 (en) * | 2004-03-31 | 2006-09-12 | General Electric Company | Mobile renewable energy generator |
US20080089746A1 (en) * | 2004-10-06 | 2008-04-17 | Enertec Ag | (Method of) Construction of a Submerged Floating Foundation With a Blocked Vertical Thrust As a Support Base for the Installation of a Wind Turbine, of an Electrolyser for the Electrolysis of Water and of Other Equipment, Combined With Fish Farming |
US7819073B2 (en) * | 2005-06-06 | 2010-10-26 | Norsk Hydro Asa | Floating wind turbine installation |
US20070001464A1 (en) * | 2005-06-30 | 2007-01-04 | Kothnur Vasanth S | System and method for installing a wind turbine at an offshore location |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10392573B2 (en) | 2008-10-17 | 2019-08-27 | Ecolab Usa Inc. | Method of controlling gas hydrates in fluid systems |
US20100099814A1 (en) * | 2008-10-17 | 2010-04-22 | Conrad Peter G | Method of controlling gas hydrates in fluid systems |
US8921478B2 (en) | 2008-10-17 | 2014-12-30 | Nalco Company | Method of controlling gas hydrates in fluid systems |
US9550935B2 (en) | 2008-10-17 | 2017-01-24 | Nalco Company | Method of controlling gas hydrates in fluid systems |
US20100099807A1 (en) * | 2008-10-17 | 2010-04-22 | Carlise Joseph R | Method of controlling gas hydrates in fluid systems |
US20130233231A1 (en) * | 2010-11-04 | 2013-09-12 | University Of Maine System Board Of Trustees | Floating Wind Turbine Platform and Method of Assembling |
US9394035B2 (en) * | 2010-11-04 | 2016-07-19 | University Of Maine System Board Of Trustees | Floating wind turbine platform and method of assembling |
US9518564B2 (en) | 2010-11-04 | 2016-12-13 | University Of Maine System Board Of Trustee | Floating hybrid composite wind turbine platform and tower system |
US9458373B2 (en) | 2010-12-16 | 2016-10-04 | Ecolab Usa Inc. | Composition and method for reducing hydrate agglomeration |
US20120201608A1 (en) * | 2011-02-04 | 2012-08-09 | Sidney Irving Belinsky | Foundation for offshore wind turbine and method and means for its transportation and installation in deepwaters |
US10626848B2 (en) | 2015-04-23 | 2020-04-21 | Continuum Dynamics, Inc. | Lift-driven wind turbine with force canceling blade configuration |
US10208734B2 (en) | 2015-04-23 | 2019-02-19 | Continuum Dynamics, Inc. | Lift-driven wind turbine with force canceling blade configuration |
US10344742B2 (en) * | 2015-04-23 | 2019-07-09 | Continuum Dynamics, Inc. | Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations |
US10598156B2 (en) | 2015-04-23 | 2020-03-24 | Continuum Dynamics, Inc. | Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations |
US20170067449A1 (en) * | 2015-04-23 | 2017-03-09 | Continuum Dynamics, Inc. | Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations |
US10837426B2 (en) | 2015-04-23 | 2020-11-17 | Continuum Dynamics, Inc. | Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations |
US10927817B1 (en) | 2015-04-23 | 2021-02-23 | Continuum Dynamics, Inc. | Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations |
US10196112B2 (en) * | 2017-03-16 | 2019-02-05 | Dalian University Of Technology | Adaptive observation platform device for sea surface |
US11486362B2 (en) * | 2018-07-20 | 2022-11-01 | Aerodyn Consulting Singapore Pte Ltd | Single-point mooring wind turbine |
US11014637B2 (en) | 2019-02-21 | 2021-05-25 | Vl Offshore, Llc | Motion-attenuated semi-submersible floating-type foundation for supporting a wind power generation system |
US11939032B2 (en) | 2019-02-21 | 2024-03-26 | Vl Offshore, Llc | Floating-type foundation for supporting a wind power generation system and including a stabilized power cable, system of floating-type foundations, and a method of stabilizing the power cable |
Also Published As
Publication number | Publication date |
---|---|
EP2143629A1 (en) | 2010-01-13 |
ES2408326T3 (es) | 2013-06-20 |
CN101624964A (zh) | 2010-01-13 |
EP2143629B1 (en) | 2013-04-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STIESDAL, HENRIK;REEL/FRAME:022922/0031 Effective date: 20090514 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |