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FLOATING VERTICAL AXIS WIND TURBINE SYSTEM NEW

外国特許コード F190009696
整理番号 (S2017-0460-N0)
掲載日 2019年1月23日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP010563
国際公開番号 WO 2018173967
国際出願日 平成30年3月16日(2018.3.16)
国際公開日 平成30年9月27日(2018.9.27)
優先権データ
  • 特願2017-055677 (2017.3.22) JP
発明の名称 (英語) FLOATING VERTICAL AXIS WIND TURBINE SYSTEM NEW
発明の概要(英語) Provided is a floating vertical axis wind turbine system capable of suppressing interference of a plurality of vertical axis wind turbines by making the direction of an array of the plurality of vertical axis wind turbines orthogonal to a wind direction in response to a large change in wind direction. The floating vertical axis wind turbine system comprises a wind turbine array 10 and a mooring device 50. The wind turbine array 10 includes: a plurality of vertical axis wind turbines 20 each having a rotation axis extending in the vertical direction; and floating structures 30 for supporting the plurality of vertical axis wind turbines 20 on the water surface by buoyancy, the plurality of vertical axis wind turbines 20 being arranged substantially on a virtual straight line L extending in the horizontal direction. The mooring device 50 moors the wind turbine array 10 such that the wind turbine array 10 is rotatable relative to the water surface at a rotation center position CP that is set on the virtual straight line L or in the vicinity thereof, between a first end 101, which is one end of the wind turbine array 10, and a second end 102, which is the other end of the wind turbine array 10. The rotation center position CP is set such that rotation moments about the rotation center position CP are cancelled out in a state in which the rotation center position CP is orthogonal to wind acting on the wind turbine array 10.
従来技術、競合技術の概要(英語) BACKGROUND ART
Conventional, such as anchor and the floating surface to the sea, the wind turbine to the floating body is mounted in a floating wind turbine system has been known.Of the floating wind turbine system is primarily for the purpose of the wind turbine generator is installed.For the purpose of the floating wind turbine the wind turbine generator system, in order to suppress the power generation cost, a floating wind turbine installation or maintenance while suppressing the cost, it is possible to improve power generation efficiency is demanded.
Of the floating wind turbine system, primarily wind turbine, a floating body, and configured from the mooring devices.Of the floating wind turbine of the wind turbine is used in the system, the rotation shaft is installed in the horizontal direction and the horizontal axis type wind turbine, the rotational axis installed in the vertical direction is a vertical axis type wind turbine.The buoyancy of the floating wind turbine is supported on the water surface.Is the floating body of the base-, usually mounted in the wind turbine group.Is supported by a floating wind turbine, which lie on the bottom by the tether mooring devices are tethered to the surface.
However, in this configuration, one group for each wind turbine device is necessary and the mooring a floating body, the cost of ship mooring devices.As a result, the electric power generation amount with respect to the increase in the cost of installation of the floating wind turbine system and, it is difficult to suppress the power generation cost.
Of the floating wind turbine in order to suppress the cost of installing the system, one group of a plurality of the floating wind turbine is mounted on the basis of the floating wind turbine system has been proposed.
However, one group of a plurality of the floating wind turbine is mounted on a substrate, and interference occurs among the wind turbine by the wind, the power generation efficiency is decreased in some cases.For example, a plurality of columns of the wind turbine groups are arranged so as to orthogonal to the wind direction, wind turbines of a wind equivalent to a plurality of groups in a state, the interference between the wind turbine is less likely to occur.However, the change in the wind, the wind turbine of the plurality of groups, the leeward side of a wind turbine of the wind turbine is located in another state, the downstream side of the wind turbine comprises a wind turbine of the wind is disturbed by the upstream side and the receiving, on the downstream side of the wind turbine power generation efficiency is lowered.
In this way to address the reduction of the power generation efficiency due to a change in wind direction in order, in accordance with the change of the wind to rotate the floating body, a plurality of groups of the vertical axis is perpendicular to the column-direction of the wind turbine to the wind turbine system has been proposed a floating (for example, see Japanese Patent Application JP-2013-508609).
Japanese Patent Application JP-2013-508609 disclosed a floating wind turbine system, a plurality of groups one group to the floating body and the mounted wind, anchored at one or more of the floating body 2 is connected to mooring device employs multi-point mooring system.In addition, to allow the rotation of the floating body, the length of the mooring or anchor device, and can adjust the length of the mooring and.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION
  • 発明者(英語)
  • NIHEI Yasunori
  • KITAMURA Shinichi
国際特許分類(IPC)

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