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公开(公告)号：US10598154B2
公开(公告)日：2020-03-24
申请号：US15543256
申请日：2015-12-16
Applicant: Vestas Wind Systems A/S
Inventor： Gunnar K. Storgaard Pedersen , Borge Øllgaard , Soren P. Jensen , Casper Lyngsø
Abstract: A wind turbine tower configured to support a wind turbine nacelle and a rotor, and with a tower wall of an inner surface and an outer surface. The tower is tethered by a number of cables, each cable extending between a first end anchored to an anchoring element and an opposite, second end attached to the tower at an attachment element. Two cables extending from two different anchoring elements are attached to the tower such that longitudinal projection lines from the second ends of the two cables converge at a convergence point, which lies at a location at a certain height and inside the tower wall thickness. Alternatively, the convergence point lies inside the tower within a distance of three wall thicknesses from the wall inner surface as measured at the height and in a direction perpendicular to the central longitudinal axis of the tower. The invention further relates to a method of erecting a wind turbine tower tethered by cables and configured for supporting a rotor assembly, and wherein the tower comprises a number of tower sections joined to each other. The method comprises positioning a first tower section, attaching at least some of the tethering cables to a second tower section while the second tower section is on the ground, lifting the second tower section with the attached cables onto the first tower section, and joining the second tower section to the first.
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Patent Agency Ranking
公开(公告)号：US09657717B2
公开(公告)日：2017-05-23
申请号：US14897825
申请日：2014-06-11
Applicant: Vestas Wind Systems A/S
Inventor： Borge Ollgaard , Soren P. Jensen
CPC classification number: F03D7/0296 , E04B1/985 , E04H12/00 , F03D13/20 , F03D80/00 , F03D80/88 , F05B2250/231 , F05B2260/964 , F16F7/10 , Y02E10/726
Abstract: The present invention relates to wind turbine towers and in particular to such towers having a damper for use when erecting the tower and prior to installing a nacelle on the top of the tower. The invention also relates to a method for damping wind turbine towers. One aspect of the invention involves a wind turbine tower (2) with an upper tower structure (24) and a damper (5) comprising, —a liquidless damper housing (7,8) fixed to the upper structure, —a cylindrical interior surface of the damper housing, and —a damper mass having a horizontal extent which is less than a horizontal extent of the cylindrical interior surface of the damper housing, and —at least one shock absorbing structure, where the damper mass is arranged to, when the tower oscillates, essentially stay in a standstill location, whereby a relative movement between the tower and the damper mass may cause an impact with between the tower mass and the shock absorbing structure dependent on the magnitude of the amplitude of the tower oscillation. A main technical progress is that the damper does not need detailed tuning to the towers natural frequency. As long as the damper mass is sufficient, it may be used for damping a range of tower sizes and heights.
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公开(公告)号：US20160252079A1
公开(公告)日：2016-09-01
申请号：US15032918
申请日：2014-10-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Borge Ollgaard , Soren P. Jensen
CPC classification number: F03D80/88 , E04B1/985 , F03D7/0296 , F03D13/10 , F03D80/00 , F05B2230/60 , F05B2240/912 , F05B2260/964 , F16F7/10 , Y02E10/728 , Y02P70/523
Abstract: A method of damping oscillations in a wind turbine tower comprises connecting a bag of material or liquid to a tower component at a first lateral distance away from a tower wall. The bag is also suspended from the tower component by a first vertical distance. The height of the tower component is known such that the first vertical distance corresponds to a particular height within the tower. The first lateral distance, first vertical distance, and mass of the bag are such that the bag is configured to hit said tower wall during oscillations in said wind turbine tower, in order to damp said oscillations in said wind turbine tower.
Abstract translation: 一种阻尼风力涡轮机塔架中的振荡的方法，包括将一袋材料或液体连接到距离塔壁的第一横向距离处的塔架部件。 该袋还从塔组件悬挂第一垂直距离。 塔部件的高度是已知的，使得第一垂直距离对应于塔内的特定高度。 袋的第一横向距离，第一垂直距离和质量使得袋被配置为在所述风力涡轮机塔架中的振荡期间撞击塔壁，以便减弱所述风力涡轮机塔架中的所述振荡。
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公开(公告)号：US20180003158A1
公开(公告)日：2018-01-04
申请号：US15543256
申请日：2015-12-16
Applicant: Vestas Wind Systems A/S
Inventor： Gunnar K. Storgaard Pedersen , Borge Øllgaard , Soren P. Jensen , Casper Lyngsø
CPC classification number: F03D13/20 , E04H12/20 , E04H12/342 , F05B2240/917 , Y02E10/726 , Y02E10/728
Abstract: A wind turbine tower configured to support a wind turbine nacelle and a rotor, and with a tower wall of an inner surface and an outer surface. The tower is tethered by a number of cables, each cable extending between a first end anchored to an anchoring element and an opposite, second end attached to the tower at an attachment element. Two cables extending from two different anchoring elements are attached to the tower such that longitudinal projection lines from the second ends of the two cables converge at a convergence point, which lies at a location at a certain height and inside the tower wall thickness. Alternatively, the convergence point lies inside the tower within a distance of three wall thicknesses from the wall inner surface as measured at the height and in a direction perpendicular to the central longitudinal axis of the tower. The invention further relates to a method of erecting a wind turbine tower tethered by cables and configured for supporting a rotor assembly, and wherein the tower comprises a number of tower sections joined to each other. The method comprises positioning a first tower section, attaching at least some of the tethering cables to a second tower section while the second tower section is on the ground, lifting the second tower section with the attached cables onto the first tower section, and joining the second tower section to the first.
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公开(公告)号：US09683556B2
公开(公告)日：2017-06-20
申请号：US15032918
申请日：2014-10-20
Applicant: Vestas Wind Systems A/S
Inventor： Borge Ollgaard , Soren P. Jensen
CPC classification number: F03D80/88 , E04B1/985 , F03D7/0296 , F03D13/10 , F03D80/00 , F05B2230/60 , F05B2240/912 , F05B2260/964 , F16F7/10 , Y02E10/728 , Y02P70/523
Abstract: A method of damping oscillations in a wind turbine tower comprises connecting a bag of material or liquid to a tower component at a first lateral distance away from a tower wall. The bag is also suspended from the tower component by a first vertical distance. The height of the tower component is known such that the first vertical distance corresponds to a particular height within the tower. The first lateral distance, first vertical distance, and mass of the bag are such that the bag is configured to hit said tower wall during oscillations in said wind turbine tower, in order to damp said oscillations in said wind turbine tower.
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公开(公告)号：US20160123303A1
公开(公告)日：2016-05-05
申请号：US14897825
申请日：2014-06-11
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Borge Ollgaard , Soren P. Jensen
CPC classification number: F03D7/0296 , E04B1/985 , E04H12/00 , F03D13/20 , F03D80/00 , F03D80/88 , F05B2250/231 , F05B2260/964 , F16F7/10 , Y02E10/726
Abstract: The present invention relates to wind turbine towers and in particular to such towers having a damper for use when erecting the tower and prior to installing a nacelle on the top of the tower. The invention also relates to a method for damping wind turbine towers. One aspect of the invention involves a wind turbine tower (2) with an upper tower structure (24) and a damper (5) comprising, —a liquidless damper housing (7,8) fixed to the upper structure, —a cylindrical interior surface of the damper housing, and—a damper mass having a horizontal extent which is less than a horizontal extent of the cylindrical interior surface of the damper housing, and—at least one shock absorbing structure, where the damper mass is arranged to, when the tower oscillates, essentially stay in a standstill location, whereby a relative movement between the tower and the damper mass may cause an impact with between the tower mass and the shock absorbing structure dependent on the magnitude of the amplitude of the tower oscillation. A main technical progress is that the damper does not need detailed tuning to the towers natural frequency. As long as the damper mass is sufficient, it may be used for damping a range of tower sizes and heights.
Abstract translation: 技术领域本发明涉及风力涡轮机塔架，特别涉及具有用于在架设塔架时以及在塔架顶部安装机舱之前使用的阻尼器的塔架。 本发明还涉及一种用于阻尼风力涡轮机塔架的方法。 本发明的一个方面涉及具有上部塔架结构（24）和阻尼器（5）的风力涡轮机塔架（2），该风力涡轮机塔架包括固定到上部结构的无液体阻尼器壳体（7,8）， - 圆柱形内表面 并且具有水平范围小于所述阻尼器壳体的圆柱形内表面的水平范围的阻尼器块，以及至少一个减震器组件，其中所述阻尼器块布置成当所述阻尼器块被布置成 塔基本上停留在停止位置，由此塔和阻尼块之间的相对运动可能导致塔体和冲击吸收结构之间的相对运动，这取决于塔架振荡幅度的大小。 主要的技术进步是阻尼器不需要对塔固有频率进行详细的调谐。 只要阻尼器质量足够，它可以用于阻尼塔尺寸和高度的范围。
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