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1. 发明公开

EP1952017A4 A METHOD FOR DAMPING TOWER VIBRATIONS IN A WIND TURBINE INSTALLATION 有权转让
标题翻译： VERFAHREN ZURDÄMPFUNGVON TURMVIBRATION BEI EINER WINDTBENENANLAGE
公开(公告)号：EP1952017A4
公开(公告)日：2012-05-02
申请号：EP06812802
申请日：2006-10-30
申请人： STATOILHYDRO ASA
发明人： NIELSEN FINN GUNNAR , SKAARE BJØRN , TANDE JOHN OLAV GIÆVER , NORHEIM IAN , UHLEN KJETIL
IPC分类号： F03D7/04 , F03D20060101 , F03D7/02 , F03D9/00 , F03D11/00
CPC分类号： F03D7/0296 , B63B39/00 , F03D7/0224 , F03D7/024 , F03D7/044 , F03D9/255 , F03D13/25 , F05B2240/93 , F05B2260/96 , Y02E10/723 , Y02E10/727
摘要： A method in connection with a wind turbine installation for damping tower vibrations, in particular a floating wind turbine installation comprising a floating cell, a tower arranged over the floating cell, a generator mounted on the tower that is rotatable in relation to the wind direction and fitted with a wind turbine, and an anchor line arrangement connected to anchors or foundations on the sea bed. The tower's eigenvibrations, ωeig, are damped by, in addition to control with the controller in the constant power or RPM range of the wind turbine, an increment, &Dgr;&bgr;, being added to the blade angle of the turbine blades on the basis of the tower velocities, &Dgr;Z, so that the eigenvibrations are counteracted. The vibrations in &bgr; that have frequency ωeig can expediently be damped by means of a stabiliser with the transfer function Hstab(s) between the tower velocities, &Dgr;Z, and the blade angle, &Dgr;&bgr;, which is such that the loop transfer function H−&bgr;-&Dgr;Z-dot{jωeig)Hstab(jωeig)=−b, which means that: (I) where “b” is a variable depending on the moment and thrust characteristics of the turbine blades.
摘要翻译：一种与用于阻尼塔振动的风力涡轮机装置相结合的方法，特别是浮动式风力涡轮机装置，包括浮动单元，布置在浮动单元上的塔架，安装在塔架上的可相对于风向转动的发电机的方法，以及安装有风力涡轮机，以及连接到海床上的锚或基座的锚线装置。塔的特征振动ωeig除了通过控制器在风力涡轮机的恒定功率或RPM范围内进行控制之外，通过在涡轮机叶片的叶片角度上被增加的增量＆Dgr; 的塔速度，Dgr; Z，使得本征振动被抵消。振动在＆bgr; 具有频率ωeig可以通过具有塔速度＆Dgr; Z和叶片角度＆Dgr＆amp; Grgr之间的传递函数Hstab的稳定器有利地被阻尼，使得循环传递函数H- ＆bgr; - ＆Dgr; Z-dot {jωeig）Hstab（jωeig）= - b，这意味着：（I）其中“b”是根据涡轮叶片的力矩和推力特性的变量。

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