JP2012201192A - Floating type offshore wind power generation device - Google Patents

Floating type offshore wind power generation device Download PDF

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Publication number
JP2012201192A
JP2012201192A JP2011066864A JP2011066864A JP2012201192A JP 2012201192 A JP2012201192 A JP 2012201192A JP 2011066864 A JP2011066864 A JP 2011066864A JP 2011066864 A JP2011066864 A JP 2011066864A JP 2012201192 A JP2012201192 A JP 2012201192A
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floating body
offshore wind
floating
power generation
wind power
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Inventor
Yoichi Moriya
陽一 森屋
Hideaki Okada
英明 岡田
Koichiro Yasuno
浩一朗 安野
Manabu Shimatani
学 島谷
Hirohiko Chikaraishi
大彦 力石
Tsunehiro Sekimoto
恒浩 関本
Teiji Motojima
禎二 本島
Kenji Shimada
健司 嶋田
Shoko Shimizu
勝公 清水
Tetsuo Hori
哲郎 堀
Tetsuji Shirae
哲次 白枝
Keijiro Neo
景次郎 根尾
Yukinari Fukumoto
幸成 福本
Hiroyuki Sukegawa
博之 助川
Takeshi Ishihara
孟 石原
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Shimizu Construction Co Ltd
University of Tokyo NUC
Penta Ocean Construction Co Ltd
Shimizu Corp
Tokyo Electric Power Company Holdings Inc
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Shimizu Construction Co Ltd
Tokyo Electric Power Co Inc
University of Tokyo NUC
Penta Ocean Construction Co Ltd
Shimizu Corp
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Application filed by Shimizu Construction Co Ltd, Tokyo Electric Power Co Inc, University of Tokyo NUC, Penta Ocean Construction Co Ltd, Shimizu Corp filed Critical Shimizu Construction Co Ltd
Priority to JP2011066864A priority Critical patent/JP2012201192A/en
Publication of JP2012201192A publication Critical patent/JP2012201192A/en
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    • 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

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Abstract

PROBLEM TO BE SOLVED: To provide a floating type offshore wind power generation device which makes easy the tension adjusting work of a mooring rope and can improve the stability of a floating body.SOLUTION: The floating type offshore wind power generation device 1 includes: a power generation device 2; the floating body 3, which supports the power generation device; sinkers 4, which moor the floating body; and tendons 5, stretched tautly each with one end connected to the floating body and the other ends thereof connected to the sinkers to stabilize the position and attitude of the floating body. In the floating type offshore wind power generation device 1, the floating body 3 is structured with a center column 3a, which supports the power generator and projection parts 3b arranged on the center column via connecting members 3c around the center column. A connecting structure of the tendons 5 at the floating body side is concentrated to the upper part of the center column 3a from the projection parts 3b along the connecting members 3c.

Description

本発明は、浮体式洋上風力発電装置に関するものである。   The present invention relates to a floating offshore wind power generator.

従来、洋上の海域は、陸上や浅海域に比べて風況が良好であるため、風力発電の立地に適している。そのような洋上に設置される風力発電装置は、経済性等の観点から実績のある着底式よりも浮体式の構造形式の方が有利である。前記浮体式の風力発電施設は、発電時のブレード回転に伴って作用する大きな水平力や転倒モーメントに対して十分な安定性を保持するとともに、発電効率が低下しないように浮体の動揺量を極力抑えるようにしている。このような浮体式風力発電施設としては、図３に示すように、テンションレグ式があり、風車２ａを支持する浮体３を構成する中央コラム３ａと張出し部３ｂ、それを係留するテンドン（係留索、以下同じ）５と、大型のシンカー（錘）４とから構成されている（特許文献１参照）ものが知られている。   Conventionally, offshore waters have better wind conditions than land and shallow waters, making them suitable for wind power generation. For such a wind power generator installed on the ocean, a floating structure type is more advantageous than a grounded type that has a proven record in terms of economy and the like. The floating wind power generation facility maintains sufficient stability against large horizontal forces and tipping moments that act as the blades rotate during power generation, and minimizes the amount of rocking of the floating body so that power generation efficiency does not decrease. I try to suppress it. As such a floating wind power generation facility, as shown in FIG. 3, there is a tension leg type, and a central column 3a and a projecting portion 3b constituting a floating body 3 that supports the windmill 2a, and a tendon (mooring cable) for mooring it. , The same applies hereinafter) 5 and a large sinker (weight) 4 (see Patent Document 1) are known.

前記テンションレグ式の浮体式洋上風力発電施設１ｃは、浮体３とシンカー４にあらかじめ大きな初期張力を鉛直方向に作用させた状態で係留する方式なので、緩係留方式よりも浮体の動揺量を低減でき、且つ、比較的占有面積を小さくできる等の利点がある。前記中央以下の張出し部３ｂは、天端高を低く、若しくはコラムを構築しない方が経済性、景観性の観点から有利である（特許文献２参照）。   The tension leg type floating offshore wind power generation facility 1c is moored in a state where a large initial tension is applied to the floating body 3 and the sinker 4 in the vertical direction in advance. In addition, there are advantages such as a relatively small occupation area. From the viewpoint of economical efficiency and landscape, it is advantageous that the protruding portion 3b below the center has a low top end height or does not construct a column (see Patent Document 2).

特開２０１０−１８１２９号公報JP 2010-18129 A 特開２０１０−６４６４９号公報JP 2010-64649 A 特開２０１０−１１５９７８号公報JP 2010-115978 A

従来の浮体式洋上風力発電装置における特許文献１では、例えば、初期張力を作用させる設備が水中部となるため、止水の問題がある。また、特許文献２では、各テンドン（係留索）と連結する張出し部３ｂは水面上に張り出しているため、経済性，景観性には劣るものの初期張力の調整を水面上で行うことが可能である。よって、初期張力を個別に調整することは比較的容易であるが、各コラムが孤立した状態となるため、洋上でのテンドン（係留索）同士の張力調整が困難となりやすい。   In Patent Document 1 of a conventional floating offshore wind power generator, for example, there is a problem of water stoppage because an equipment that applies initial tension is an underwater part. Moreover, in patent document 2, since the overhang | projection part 3b connected with each tendon (mooring line) is overhanging on the water surface, although it is inferior to economical efficiency and a landscape property, it is possible to adjust initial tension on the water surface. is there. Therefore, although it is relatively easy to individually adjust the initial tension, it is difficult to adjust the tension between tendons (moorings) on the ocean because each column is isolated.

また、特許文献３では、補助設備を用いることで各コラムの厳密な張力調整ができる可能性があるが、この補助設備は大型施設が必要となって経済性に劣るとともに作業時の安全性が低下するという課題がある。更に、風車稼働中にシンカーが沈下した場合に、張力の再調整を迅速に行う必要がある場合や、定期的な微調整などの作業が生じた時において、機械設備の設置に時間を要するという課題がある。本発明に係る浮体式洋上風力発電装置は、このような課題を解決するために提案されたものである。   Further, in Patent Document 3, there is a possibility that strict tension adjustment of each column can be performed by using auxiliary equipment. However, this auxiliary equipment requires a large facility and is inferior in economic efficiency and safety at the time of work. There is a problem of lowering. Furthermore, if the sinker sinks while the windmill is in operation, it will take time to install the mechanical equipment when it is necessary to quickly readjust the tension or when work such as periodic fine adjustment occurs. There are challenges. The floating offshore wind turbine generator according to the present invention has been proposed in order to solve such problems.

本発明に係る浮体式洋上風力発電装置の上記課題を解決して目的を達成するための要旨は、発電装置と、該発電装置を支持する浮体と、該浮体を係留するシンカーと、前記浮体に一端部が繋着され他端部が前記シンカーに繋着され緊張・張設されて前記浮体の位置及び姿勢を安定させるテンドン（係留索）とでなる浮体式洋上風力発電装置において、前記浮体は、前記発電装置を支持する中央コラムと該中央コラムに連結部材を介して前記中央コラムの周囲に配設される張出し部とで構成され、前記テンドン（係留索）の浮体側における繋着構造が、前記張出し部から前記連結部材に沿って前記中央コラムの上部に集約されて繋着されていることである。   The gist for solving the above-mentioned problems of the floating offshore wind power generator according to the present invention is to achieve the object, a power generator, a floating body that supports the power generator, a sinker that anchors the floating body, and the floating body. In the floating offshore wind power generator system comprising a tendon (a mooring line) that has one end connected and the other end connected to the sinker and is tensioned and tensioned to stabilize the position and posture of the floating body. The connecting structure on the floating body side of the tendon (the mooring line) includes a central column that supports the power generation device and an overhang portion that is disposed around the central column via a connecting member. In this case, the projecting portion is integrated and connected to the upper portion of the central column along the connecting member.

また、前記中央コラムの水面上にある天端部に、テンドン（係留索）の張力調整・固定装置が設けられていることを含むものである。   In addition, a tension adjusting / fixing device for tendons (mooring lines) is provided at the top end portion on the water surface of the central column.

本発明の浮体式洋上風力発電装置によれば、テンドン（係留索）の浮体側の端部が中央コラムに集約されているので、張力の調整作業が容易となる。更に、風車稼働中に生じた張力の変動や、定期的な張力調整も容易にできる。浮体の揺れに対して張出し部を通ってシンカーで押さえるので、抵抗モーメントが大きくなって、テンドン（係留索）の緊張力が小さくて負荷が軽減され、浮体の安定性も向上する。   According to the floating offshore wind power generator of the present invention, the end of the tendon (the mooring line) on the floating body side is concentrated on the central column, so that the tension adjustment operation is facilitated. In addition, it is possible to easily change the tension generated during the operation of the wind turbine and periodically adjust the tension. Since the floating body is pressed by the sinker through the overhang portion, the resistance moment is increased, the tension of the tendon (the mooring line) is reduced, the load is reduced, and the stability of the floating body is improved.

本発明に係る浮体式洋上風力発電装置１の側面図（Ａ），平面図（Ｂ），第１実施例に係る一部断面図（Ｃ），第２実施例に係る一部断面図（Ｄ）である。Side view (A), plan view (B), partial sectional view (C) according to the first embodiment, partial sectional view according to the second embodiment (D) of the floating offshore wind power generator 1 according to the present invention ). 同本発明に係る第３実施例の浮体式洋上風力発電装置１ｂの側面図（Ａ），平面図（ｂ），一部側面図（Ｃ），一部断面図（Ｄ）である。They are a side view (A), a plan view (b), a partial side view (C), and a partial sectional view (D) of a floating offshore wind turbine generator 1b according to a third embodiment of the present invention. 従来例に係る浮体式洋上風力発電装置１ｃの斜視図である。It is a perspective view of the floating body type offshore wind power generator 1c which concerns on a prior art example.

本発明に係る浮体式洋上風力発電装置１は、図１（Ａ）〜（Ｃ）に示すように、浮体式洋上風力発電装置１の姿勢を安定させるテンドン（係留索）の、浮体側の繋着部の位置を、中央コラムに集約させてなるものである。   As shown in FIGS. 1A to 1C, the floating offshore wind power generator 1 according to the present invention is connected to a floating body of a tendon (mooring line) that stabilizes the attitude of the floating offshore wind power generator 1. The position of the landing part is gathered in the central column.

本発明に係る浮体式洋上風力発電装置１は、図１（Ａ），（Ｂ）に示すように、発電装置２と、該発電装置２を支持する浮体３と、該浮体３を係留するシンカー４と、前記浮体３に一端部が繋着され他端部が前記シンカーに繋着され緊張・張設されて前記浮体３の位置及び姿勢を安定させるテンドン（係留索）５とでなる。   As shown in FIGS. 1A and 1B, a floating offshore wind power generator 1 according to the present invention includes a power generator 2, a floating body 3 that supports the power generator 2, and a sinker that anchors the floating body 3. 4 and a tendon (a mooring line) 5 that stabilizes the position and posture of the floating body 3 with one end connected to the floating body 3 and the other end connected to the sinker.

前記浮体式洋上風力発電装置１において、前記浮体３は、前記発電装置２を支持する中央コラム３ａと該中央コラム３ａに連結部材３ｃを介して前記中央コラム３ａの周囲に配設（３カ所若しくは４カ所程度、数は任意）される張出し部３ｂとで構成される。   In the floating offshore wind power generator 1, the floating body 3 is disposed around the central column 3a via a central column 3a supporting the power generator 2 and a connecting member 3c to the central column 3a (three locations or About 4 places, the number is arbitrary), and is configured with an overhanging portion 3b.

そして、前記テンドン（係留索）５の浮体３側における繋着構造が、前記張出し部３ｂから前記連結部材３ｃに沿って前記中央コラム３ａの上部に集約されて繋着されている。このテンドン（係留索）５の浮体３側の定着部において、テンドン（係留索）５を緊張調節させるための張力調整・固定装置６が設けられている。   And the connection structure in the floating body 3 side of the said tendon (mooring line) 5 is integrated and connected to the upper part of the said center column 3a along the said connection member 3c from the said overhang | projection part 3b. A tension adjusting / fixing device 6 for adjusting the tension of the tendon (the mooring line) 5 is provided at the fixing portion of the tendon (the mooring line) 5 on the floating body 3 side.

また、前記張力調整・固定装置６は、前記中央コラム３ａの水面上にある天端部に設けられている。緊張作業を、水面上で行えるようにするものである。この調節機構は、例えば、緊張時にジャッキが設置され、円錐空間部にクサビを設けた楔型のフレシネ（登録商標）構造とすることができる。   The tension adjusting / fixing device 6 is provided at the top end portion on the water surface of the central column 3a. Tension work can be performed on the surface of the water. For example, the adjusting mechanism may be a wedge-shaped Frescine (registered trademark) structure in which a jack is installed during tension and a wedge is provided in the conical space.

前記テンドン（係留索）５の、張出し部３ｂから海中へ出ていくときの取付位置は、図１（Ｃ）に示すように、張出し部３ｂの中央から海中へ、若しくは、第２実施例として図１（Ｄ）に示すように、張出し部３ｂの内側部から海中へと通過させるものである。   As shown in FIG. 1C, the attachment position of the tendon (mooring cable) 5 when going out from the overhanging portion 3b into the sea is from the center of the overhanging portion 3b, or as a second embodiment. As shown in FIG. 1 (D), it is allowed to pass from the inner side of the overhang portion 3b into the sea.

更に、第３実施例として、図２に示すように、前記連結部材３ｃの外側に、例えば、フック８又はガイド管の様なものを設置して、外ケーブルのように架設して中央コラム３ａに、テンドン（係留索）５の繋着部を集約するものである。このようなテンドン（係留索）５の架設方法であれば、前記張出し部３ｂの天端が水面上にある場合の構造にも適用できるものである。   Further, as a third embodiment, as shown in FIG. 2, for example, a hook 8 or a guide tube is installed outside the connecting member 3c, and is erected like an outer cable to be installed in the central column 3a. In addition, the connecting parts of tendons (mooring lines) 5 are collected. Such a construction method of the tendon (mooring line) 5 can be applied to a structure in which the top end of the overhang portion 3b is on the water surface.

以上のようにして、浮体式洋上風力発電装置１，１ａ，１ｂによれば、テンドン（係留索）５の調整を中央コラム３ａの上で且つ水面上にて集中して行うことができる。   As described above, according to the floating offshore wind turbine generators 1, 1 a, 1 b, the tendon (mooring line) 5 can be adjusted on the central column 3 a and on the water surface in a concentrated manner.

本発明に係る浮体式洋上風力発電装置１は、従来の浮体式洋上風力発電装置に容易に適用できるものである。   The floating offshore wind turbine generator 1 according to the present invention can be easily applied to a conventional floating offshore wind turbine generator.

１ 浮体式洋上風力発電装置、
１ａ，１ｂ 他の実施例の浮体式洋上風力発電装置
１ｃ 従来の浮体式洋上風力発電装置、
２ 発電装置、
３ 浮体、 ３ａ 中央浮体、
３ｂ 張出し部、 ３ｃ 連結部材、
４ シンカー、
５ テンドン（係留索）、
６ 張力調整・固定装置、
７ 海底、
８ フック。 1 Floating offshore wind power generator,
1a, 1b Floating offshore wind turbine generator 1c according to another embodiment 1c Conventional floating offshore wind turbine generator,
2 power generator,
3 floating body, 3a central floating body,
3b overhang, 3c connecting member,
4 Sinker,
5 Tendon (mooring line),
6 Tension adjustment / fixing device,
7 Seabed,
8 Hook.

Claims (2)

発電装置と、該発電装置を支持する浮体と、該浮体を係留するシンカーと、前記浮体に一端部が繋着され他端部が前記シンカーに繋着され緊張・張設されて前記浮体の位置及び姿勢を安定させるテンドンとでなる浮体式洋上風力発電装置において、
前記浮体は、前記発電装置を支持する中央コラムと該中央コラムに連結部材を介して前記中央コラムの周囲に配設される張出し部とで構成され、
前記テンドンの浮体側における繋着構造が、前記張出し部から前記連結部材に沿って前記中央コラムの上部に集約されて繋着されていること、
を特徴とする浮体式洋上風力発電装置。 The power generator, the floating body that supports the power generator, the sinker that anchors the floating body, one end connected to the floating body, the other end connected to the sinker, and the tensioned and tensioned position. And a floating offshore wind power generator composed of tendon that stabilizes the posture,
The floating body is composed of a central column that supports the power generation device, and an overhang portion that is disposed around the central column via a connecting member.
The connecting structure on the floating body side of the tendon is integrated and connected to the upper part of the central column along the connecting member from the overhanging portion,
Floating offshore wind turbine generator. 中央コラムの水面上にある天端部に、テンドンの張力調整・固定装置が設けられていること、
を特徴とする請求項１に記載の浮体式洋上風力発電装置。 Tendon tension adjusting / fixing device is installed at the top of the central column on the water surface.
The floating offshore wind turbine generator according to claim 1.
JP2011066864A 2011-03-25 2011-03-25 Floating type offshore wind power generation device Pending JP2012201192A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017521296A (en) * 2014-05-27 2017-08-03 エステイコ・ソシエダッド・アノニマ・プロフェシオナルＥｓｔｅｙｃｏ Ｓ．Ａ．Ｐ． Floating structure and installation method of floating structure
CN115151481A (en) * 2020-01-23 2022-10-04 奥赛吉公司 Floating ocean platform

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1389216A (en) * 1964-03-19 1965-02-12 Remote-controlled marine immersion platform
JPS5277401A (en) * 1975-12-19 1977-06-29 Karlskronavarvet Ab Floating platform capable of being anchored
EP1174336A1 (en) * 2000-07-18 2002-01-23 Maierform Maritime Technology GmbH Fixed location positioning of functional units on or in water
GB2378679A (en) * 2001-08-16 2003-02-19 Technologies Ltd Ocean Floating offshore wind turbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1389216A (en) * 1964-03-19 1965-02-12 Remote-controlled marine immersion platform
JPS5277401A (en) * 1975-12-19 1977-06-29 Karlskronavarvet Ab Floating platform capable of being anchored
EP1174336A1 (en) * 2000-07-18 2002-01-23 Maierform Maritime Technology GmbH Fixed location positioning of functional units on or in water
GB2378679A (en) * 2001-08-16 2003-02-19 Technologies Ltd Ocean Floating offshore wind turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017521296A (en) * 2014-05-27 2017-08-03 エステイコ・ソシエダッド・アノニマ・プロフェシオナルＥｓｔｅｙｃｏ Ｓ．Ａ．Ｐ． Floating structure and installation method of floating structure
CN115151481A (en) * 2020-01-23 2022-10-04 奥赛吉公司 Floating ocean platform

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