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WO2017085732A1 - A self-detaining offshore wind energy generation plant field of the invention - Google Patents

A self-detaining offshore wind energy generation plant field of the invention Download PDF

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Publication number
WO2017085732A1
WO2017085732A1 PCT/IN2016/000264 IN2016000264W WO2017085732A1 WO 2017085732 A1 WO2017085732 A1 WO 2017085732A1 IN 2016000264 W IN2016000264 W IN 2016000264W WO 2017085732 A1 WO2017085732 A1 WO 2017085732A1
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WO
WIPO (PCT)
Prior art keywords
plant
self
energy producing
retaining
wind
Prior art date
Application number
PCT/IN2016/000264
Other languages
French (fr)
Inventor
Rajagopal Raghunathan Valagam
Original Assignee
Rajagopal Raghunathan Valagam
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 Rajagopal Raghunathan Valagam filed Critical Rajagopal Raghunathan Valagam
Publication of WO2017085732A1 publication Critical patent/WO2017085732A1/en

Links

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
    • 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
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • F05B2240/93—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
    • F05B2240/96—Mounting on supporting structures or systems as part of a wind turbine farm
    • 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
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates to a field of offshore wind turbine energy producing plant more specifically a self-retaining offshore floating energy producing plant for retaining position of group of wind turbines via single anchor point by means of oppositely rotating alternately arranged wind turbines.
  • the prior art US 8118538 B2 discloses about Offshore vertical-axis wind turbine and associated systems and methods.
  • offshore wind turbine has a vertical-axis wind turbine (VAWT) mounted on a platform.
  • VAWT vertical-axis wind turbine
  • the VAWT has a vertical rotor and curved blades coupled to a gearbox and an electric generator.
  • the VAWT can fixedly extend from the platform or may be capable of reclining on the platform either manually or automatically.
  • the platform can be composed of modular elements coupled together.
  • the platform can be semi-submersible with the VAWT extending out of the water and with a counterbalance extending below the platform.
  • the platform can float on the water's surface and can have several arms that extend outwardly from the VAWT to increase the platform's footprint.
  • anchoring systems can anchor the platform to the seabed while allowing the floating wind turbine to adjust passively or actively to changes in sea level due to tidal variations or storm swells.
  • This prior art application is a semi floating platform. In this type required mirror platform and weight as anchor to arrest the movement of floating platform.
  • the present application addresses and eliminates the above drawbacks with unique solution.
  • An object of the invention is to provide a self-retaining offshore floating energy producing plant.
  • Another object of the invention is to minimize the gyro/couple effect of floating platform cause of wind thrust force.
  • Yet another object of the invention is to provide a pair of wind turbines with different rotating direction (clock wise and anti-clock wise) for minimizing/nullifying the above said gyro effect.
  • Another object of the invention is to retain a position of group of wind turbines/plant via flexible member and single anchor point/minimum number of anchor points.
  • Yet another object of the invention is to accumulate effect of wind flow and its response of wind turbines towards single point to achieve single anchor point/minimum number of anchor points for group of turbines/plant. Further object of the invention is to arrest movement of energy producing plant and eliminate twisting of flexible member from anchor point by providing clock wise and antilock wise rotating turbine pairs.
  • the present invention relates to an offshore energy producing plant specifically which can provide solution for existing issues such as retaining position of wind turbine plant within preferred location on the sea surface, eliminating twisting of retaining member and minimizing/nullifying gyro or couple movement due to arrangement of same direction rotating turbines (refer figure 1).
  • the present self-retaining offshore floating energy producing plant can retain the position of group of wind turbines via single anchor point with the help of alternately arranging different rotating direction of turbine.
  • More than one individual floating member configured to float on a sea surface and form a cluster which connects through a flexible member and retains through a common holding/anchor point
  • the formed cluster configuration accumulate the effect of wind flow and its response of wind turbines towards single point to achieve single anchor point/minimum number of anchor points for a group of turbines/plant. From the above configuration supports to achieve arresting movement of energy producing plant as well as eliminating twisting of flexible member between anchor and common floating member.
  • Figure 1 illustrates prior art's floating turbine and its gyration/couple effect due to forming a cluster with same rotating direction wind turbines.
  • Figure 2 illustrates one of the embodiment of the invention, which shows how different rotating direction wind turbine in offshore eliminates/minimize/nullify gyration/couple effect.
  • Figure 3 illustrates other embodiments of the invention which shows configuration of self- retaining offshore floating energy producing plant.
  • One of the embodiments of the invention discloses about a self-retaining offshore floating energy producing plant for retaining position and minimizing gyration or couple effect of group of wind turbines/energy generation plant by means of pair of oppositely rotating wind
  • the floating plant comprises of at least a pair of individual floating members (1) configured to float on a sea surface to form a cluster (9) via inter connecting members (4b) and common point (5), the common point (5) configured to connect with at least one anchor point (6).
  • Each pair includes exactly one clock wise and anti-clock wise rotating turbine configured to co-operatively minimize/nullify gyro movement thereby arresting movement of
  • Another embodiment of the invention discloses about cluster configuration.
  • the shape of the cluster can be a circle or plurality of concentric circle or any preferred matrix which 120 accumulate wind force and effect of turbine in the single point (5).
  • Yet another embodiment of the invention discloses common point (5) of a cluster configuration, it can be retained via single anchor point (6) or minimum number of anchor points.
  • inter connecting member (4b) can be a flexible or non-flexible member or combination thereof.
  • each pair of floating 130 members can be arranged opposite or adjacent with each other or combination thereof.
  • the self-retaining offshore floating energy producing plant does not need any additional 135 weights or propeller to retain the position of plant.
  • the self-retaining offshore floating energy producing plant eliminates the need of costly concrete foundation.
  • the self-retaining offshore floating energy producing plant retains a position of group of wind turbines/plant via flexible member with single anchor point or minimum number of
  • the self-retaining offshore floating energy producing plant is to accumulate effect of wind flow and its response of wind turbines towards single point to achieve the above single anchor point/minimum number of anchor points.
  • the self-retaining offshore floating energy producing plant arrests/gyro movement of 145 energy producing plant.
  • the self-retaining offshore floating energy producing plant eliminates twisting of flexible member.

Landscapes

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

Abstract

The present invention relates to an offshore energy producing plant specifically which can provide solution for existing issues such as retaining position of wind turbine plant within preferred location on the sea surface, eliminating twisting of retaining member and minimizing/nullifying gyro or couple movement due to arrangement of same direction rotating turbines (refer figure 1). The present self-retaining offshore floating energy producing plant can retain the position of group of wind turbines via single anchor point with the help of alternately arranging different rotating direction of turbine. More than one individual floating member configured to float on a sea surface and form a cluster which connects through a flexible member and retains through a common holding/anchor point, the formed cluster configuration accumulate the effect of wind flow and its response of wind turbines towards single point to achieve single anchor point/minimum number of anchor points for a group of turbines/plant.

Description

A SELF-DETAINING OFFSHORE WIND ENERGY GENERATION PLANT
FIELD OF THE INVENTION
The present invention relates to a field of offshore wind turbine energy producing plant more specifically a self-retaining offshore floating energy producing plant for retaining position of group of wind turbines via single anchor point by means of oppositely rotating alternately arranged wind turbines.
BACKGROUND OF THE INVENTION Generally, the use of wind turbines to generate electricity from offshore locations presents some unique challenges such as provision of a seaworthy foundation or platform for the turbine, and the construction of the wind turbine tower.
In existing offshore wind turbines, a solid foundation is poured with pilings into the sea floor and the tower is erected on this foundation with the use of large and complicated sea cranes.
Further, Conventional offshore wind turbine foundations and pilings are a significant impact to the sea floor ecology and at the end of the turbine's life the foundation may present a navigation hazard. It would be desirable to provide a way of deploying offshore wind turbines that have a lower impact on sea floor ecology and do not present a navigation hazard after the turbines decommissioned.
The prior art US 8118538 B2 discloses about Offshore vertical-axis wind turbine and associated systems and methods. In this prior art, offshore wind turbine has a vertical-axis wind turbine (VAWT) mounted on a platform. The VAWT has a vertical rotor and curved blades coupled to a gearbox and an electric generator. The VAWT can fixedly extend from the platform or may be capable of reclining on the platform either manually or automatically. The platform can be composed of modular elements coupled together. Offshore, the platform can be semi-submersible with the VAWT extending out of the water and with a counterbalance extending below the platform. Alternatively, the platform can float on the water's surface and can have several arms that extend outwardly from the VAWT to increase the platform's footprint. To anchor the turbine offshore, anchoring systems can anchor the platform to the seabed while allowing the floating wind turbine to adjust passively or actively to changes in sea level due to tidal variations or storm swells. This prior art application is a semi floating platform. In this type required mirror platform and weight as anchor to arrest the movement of floating platform.
In some other prior art having a common platform or anchor point for more than one turbine, but this kind of platform/energy producing plant fails due to twisting/movement of cables or ropes due to wind force.
In some other floating plant having wind turbines with same rotating direction. The same rotating direction turbine cumulatively form a gyration or couple effect (11) (refer figure 1) which action rotates entire platform/plant and also twists an anchor cable, so there is a need for frequent maintenance and replacement of twisted cable as well as other affected parts.
The present application addresses and eliminates the above drawbacks with unique solution.
OBJECT OF THE INVENTION
An object of the invention is to provide a self-retaining offshore floating energy producing plant.
Another object of the invention is to minimize the gyro/couple effect of floating platform cause of wind thrust force.
Yet another object of the invention is to provide a pair of wind turbines with different rotating direction (clock wise and anti-clock wise) for minimizing/nullifying the above said gyro effect.
Another object of the invention is to retain a position of group of wind turbines/plant via flexible member and single anchor point/minimum number of anchor points.
Yet another object of the invention is to accumulate effect of wind flow and its response of wind turbines towards single point to achieve single anchor point/minimum number of anchor points for group of turbines/plant. Further object of the invention is to arrest movement of energy producing plant and eliminate twisting of flexible member from anchor point by providing clock wise and antilock wise rotating turbine pairs.
SUMMARY OF THE INVENTION
The present invention relates to an offshore energy producing plant specifically which can provide solution for existing issues such as retaining position of wind turbine plant within preferred location on the sea surface, eliminating twisting of retaining member and minimizing/nullifying gyro or couple movement due to arrangement of same direction rotating turbines (refer figure 1). The present self-retaining offshore floating energy producing plant can retain the position of group of wind turbines via single anchor point with the help of alternately arranging different rotating direction of turbine. More than one individual floating member configured to float on a sea surface and form a cluster which connects through a flexible member and retains through a common holding/anchor point, the formed cluster configuration accumulate the effect of wind flow and its response of wind turbines towards single point to achieve single anchor point/minimum number of anchor points for a group of turbines/plant. From the above configuration supports to achieve arresting movement of energy producing plant as well as eliminating twisting of flexible member between anchor and common floating member.
BRIEF DESCRIPTION OF DRAWINGS
Figure imgf000004_0001
12. Couple/gyration due to same direction rotating turbines 11
Figure 1 illustrates prior art's floating turbine and its gyration/couple effect due to forming a cluster with same rotating direction wind turbines.
Figure 2 illustrates one of the embodiment of the invention, which shows how different rotating direction wind turbine in offshore eliminates/minimize/nullify gyration/couple effect.
95
Figure 3 illustrates other embodiments of the invention which shows configuration of self- retaining offshore floating energy producing plant.
The above drawing illustrates the details has been given and will be provided with respect to 100 certain specific embodiments, it is to be understood that the scope of the disclosure should not be limited to such embodiments but that the same are provided simply for enablement and best mode purposes. The breadth and spirit of the present disclosure is broader than the embodiments specifically disclosed and encompassed within the claims eventually appended hereto.
105
DETAILED DESCRIPTION OF INVENTION
One of the embodiments of the invention discloses about a self-retaining offshore floating energy producing plant for retaining position and minimizing gyration or couple effect of group of wind turbines/energy generation plant by means of pair of oppositely rotating wind
110 turbines. The floating plant comprises of at least a pair of individual floating members (1) configured to float on a sea surface to form a cluster (9) via inter connecting members (4b) and common point (5), the common point (5) configured to connect with at least one anchor point (6). Each pair includes exactly one clock wise and anti-clock wise rotating turbine configured to co-operatively minimize/nullify gyro movement thereby arresting movement of
115 wind turbine plant with minimum number of anchor point within allowable limit and eliminating twisting movement of flexible member (4a).
Another embodiment of the invention discloses about cluster configuration. The shape of the cluster can be a circle or plurality of concentric circle or any preferred matrix which 120 accumulate wind force and effect of turbine in the single point (5). Yet another embodiment of the invention discloses common point (5) of a cluster configuration, it can be retained via single anchor point (6) or minimum number of anchor points.
125
Yet another embodiment of the invention discloses about inter connecting member (4b). This interconnecting member can be a flexible or non-flexible member or combination thereof.
Further embodiment of the invention discloses about configuration of each pair of floating 130 members. Each pair can be arranged opposite or adjacent with each other or combination thereof.
ADVANTAGE OF THE INVENTION
1. The self-retaining offshore floating energy producing plant does not need any additional 135 weights or propeller to retain the position of plant.
2. The self-retaining offshore floating energy producing plant eliminates the need of costly concrete foundation.
3. The self-retaining offshore floating energy producing plant retains a position of group of wind turbines/plant via flexible member with single anchor point or minimum number of
140 anchor points.
4. The self-retaining offshore floating energy producing plant is to accumulate effect of wind flow and its response of wind turbines towards single point to achieve the above single anchor point/minimum number of anchor points.
5. The self-retaining offshore floating energy producing plant arrests/gyro movement of 145 energy producing plant.
6. The self-retaining offshore floating energy producing plant eliminates twisting of flexible member.
So that the manner in which the features, advantages and objects of the invention, as well as 150 others which will become apparent, may be understood in more detail, more particular description of the invention briefly summarized above may be had by reference to the embodiment thereof which is illustrated in the appended drawings, which form a part of this specification. It is to be noted, however, that the drawing illustrate only a preferred embodiment of the invention and is therefore not to be considered limiting of the invention's 155 scope as it may admit to other equally effective embodiments.

Claims

1. A self-retaining offshore floating energy producing plant for retaining position and minimizing gyration/couple effect(l l) of group of wind turbines/plant by means of pair of oppositely rotating wind turbines, the said floating plant comprises of;
160 - at least a pair of individual floating members (1) configured to float on a sea surface to form a cluster (9) via inter connecting members (4b) and common point (5),
- the said common point (5) configured to connect with at least one anchor point (6), Characterized in that
- each pair includes exactly one clock wise and anti-clock wise rotating turbine configured 165 to co-operatively minimize/nullify gyro movement thereby arresting movement of wind turbine plant with minimum number of anchor point within allowable limit and eliminating twisting movement of flexible member (4a).
2. The self-retaining offshore floating energy producing plant as claimed in claim 1, wherein 170 the said cluster configuration can be a circle or plurality of concentric circle or any preferred . matrix which accumulate wind force and effect of turbine in single point (5).
3. The self- retainable offshore floating energy producing plant as claimed in claim 1, wherein the said common point (5) can be retained via single anchor point (6).
175
4. The self- retainable offshore floating energy producing plant as claimed in claim 1, wherein the said inter connecting member (4b) can be a flexible or non-flexible member or combination thereof.
180 5. The self- retainable offshore floating energy producing plant as claimed in claim 1, wherein the said pair can be arranged adjacently or opposite sides or combination thereof.
PCT/IN2016/000264 2015-11-19 2016-11-09 A self-detaining offshore wind energy generation plant field of the invention WO2017085732A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN6239CH2015 2015-11-19
IN6239/CHE/2015 2015-11-19

Publications (1)

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WO2017085732A1 true WO2017085732A1 (en) 2017-05-26

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007009464A1 (en) * 2005-07-19 2007-01-25 Pp Energy Aps Plant for exploiting wind energy at sea
US8169099B2 (en) * 2008-08-18 2012-05-01 Samuel Roznitsky Deep offshore floating wind turbine and method of deep offshore floating wind turbine assembly, transportation, installation and operation
EP2852759A1 (en) * 2012-05-22 2015-04-01 Centre National de la Recherche Scientifique (CNRS) Floating wind turbine having a vertical axle, with improved flotation stability

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007009464A1 (en) * 2005-07-19 2007-01-25 Pp Energy Aps Plant for exploiting wind energy at sea
US8169099B2 (en) * 2008-08-18 2012-05-01 Samuel Roznitsky Deep offshore floating wind turbine and method of deep offshore floating wind turbine assembly, transportation, installation and operation
EP2852759A1 (en) * 2012-05-22 2015-04-01 Centre National de la Recherche Scientifique (CNRS) Floating wind turbine having a vertical axle, with improved flotation stability

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