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公开(公告)号：US20210301792A1
公开(公告)日：2021-09-30
申请号：US17059763
申请日：2019-06-13
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Jesper Rømer HANSEN
Abstract: A method for operating at least two floating offshore wind turbines (1) is disclosed. The wind turbines (1) are operated at respective first operating positions (7), and a previous and/or a future expected wear impact on each wind turbine (1) is estimated. At least one wind turbine (1) to be relocated to a respective second operating position (9) is identified, based on the estimated wear impact. The identified wind turbines (1) are moved to respective second operating position (9) and operated there.
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公开(公告)号：US10767629B2
公开(公告)日：2020-09-08
申请号：US15473749
申请日：2017-03-30
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Hideyasu Fujioka
Abstract: A wind turbine power generation facility includes: at least one wind turbine power generating apparatus; a lightning sensor for detecting or predicting occurrence of lightning in an installation area of the at least one wind turbine power generating apparatus; and a controller for switching an operation mode of the at least one wind turbine power generating apparatus to a lightning-protection mode in which a rotor rotation speed is lower than a rated rotation speed, on the basis of an output signal of the lightning sensor.
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公开(公告)号：US20200256320A1
公开(公告)日：2020-08-13
申请号：US16641865
申请日：2018-10-26
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Jan Christensen
Abstract: A method for performing maintenance on an outer surface of at least one wind turbine part, such as a tower (2), a nacelle (3) or a wind turbine blade (5), of an offshore wind turbine (1) is disclosed. An access system (10) is transported to a site of the offshore wind turbine (1), and the access system (10) is transferred to a transition platform (6) at a lower part of the offshore wind turbine (1), while operating the offshore wind turbine (1) in accordance with a normal operating mode. Normal operation of the offshore wind turbine (1) is then stopped, and maintenance is performed on an outer surface of at least one wind turbine part (2, 3, 5) of the offshore wind turbine (1), using the access system (10). When the maintenance has been completed, normal operation of the offshore wind turbine (1) is restarted in accordance with a normal operating mode. Normal operation of the offshore wind turbine (1) is only stopped while the actual maintenance takes place. Thereby the loss in power production is minimised.
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公开(公告)号：US10443580B2
公开(公告)日：2019-10-15
申请号：US15515854
申请日：2015-09-16
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Morten Frost Hansen , Peter Nordlyng , Mark Ursell-Smith , Kim Christensen , Ken Nakayama
Abstract: An offshore wind turbine generator comprises a tower 1 and a platform 2. The tower 1 is provided with a side door 4 accessed from the platform 2 using a stairway 5 leading to an upper platform 6. The upper platform 6 is formed from the upper surface of a cabinet 7 which houses a diesel backup generator. Both the backup generator and the cabinet 7 are mounted to the tower 1 by bolts, such that the cabinet and backup generator are fully supported by the tower 1. A diesel fuel tank 12 is also mounted to the tower 1 by bolts. The fuel tank supplies diesel fuel to the backup generator.
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公开(公告)号：US20190260208A1
公开(公告)日：2019-08-22
申请号：US16345467
申请日：2017-10-26
Applicant: MHi Vestas Offshore Wind A/S
Abstract: Embodiments herein describe operating a first wind turbine using an auxiliary control system when a high-voltage link coupling a wind park to a grid is not functioning. When using the auxiliary control system, the first wind turbine provides power to a local AC grid which can be used to power auxiliary system in a second wind turbine while the second wind turbine is shutdown. However, when the high-voltage link is functional, the first and second wind turbines provide power to the high-voltage link using a primary control system.
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Patent Agency Ranking
公开(公告)号：US20190203700A1
公开(公告)日：2019-07-04
申请号：US16323083
申请日：2017-08-11
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Tomohiro Numajiri
CPC classification number: F03D80/50 , B66C1/108 , B66C23/185 , B66C23/207 , B66C23/701 , F03D1/00 , F05B2230/61 , F05B2230/80 , Y02E10/726 , Y02P70/523
Abstract: A method of performing maintenance on a wind turbine component (18, 22, 24) of a wind turbine (10) having an integrated lifting apparatus (40). The method includes lifting a first temporary support (104) using the integrated lifting apparatus (40), coupling the first temporary support (104) to the nacelle (12) or the hub (16) and the integrated lifting apparatus (40), removing the wind turbine component (18, 22, 24) using the integrated lifting apparatus (40) and the first temporary support (104) in combination. The method may further include installing a replacement wind turbine component (18, 22, 24) using at least a part of the integrated lifting apparatus (40) and the first temporary support (104) in combination, decoupling the first temporary support (104) from the nacelle (12) or the hub (16) and the integrated lifting apparatus (40), and removing the first temporary support (104) from the wind turbine (10) using the integrated lifting apparatus (40). A system for performing maintenance on a wind turbine component (18, 22, 24) is also disclosed.
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公开(公告)号：US10030631B2
公开(公告)日：2018-07-24
申请号：US14894878
申请日：2014-05-28
Applicant: MHI VESTAS OFFSHORE WIND A/S
Inventor： Ian Couchman , Robert Bowyer
Abstract: The present invention relates to methods and apparatus for removing or substantially reducing negative damping effects on a floating wind turbine. An operating point signal is received and a gain scheduling parameter is determined based on the received operating point signal. An input signal is then gain scheduled by the gain scheduling parameter and based on at least the gain scheduled input signal the negative damping effects on a floating wind turbine can be removed or substantially reduced.
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公开(公告)号：US20170045038A1
公开(公告)日：2017-02-16
申请号：US15337194
申请日：2016-10-28
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Jesper Nyvad , Michael Lundgaard Bitsch , Mazyar Abolfazlian , Morten Mogensen , Antonino Pizzuto , Mads Damgaard
CPC classification number: F03D80/60 , F03D1/04 , F03D80/80 , F03D80/88 , F05B2240/14 , F05B2240/916 , F05B2260/20 , Y02E10/722 , Y02E10/726 , Y02E10/728 , Y02T50/675
Abstract: A heli-hoist pad that is incorporated into a wind turbine nacelle in a manner that is optimized for helicopter approach and positioning of the heli-hoist pad, such as by being located within a recess in an upper surface of the wind turbine nacelle. Heat exchangers may also be positioned within the free flow of wind outside of a nacelle in manners that provide for serviceability while also allowing for optimal positioning of a heli-hoist pad.
Abstract translation: 一种直升机葫芦垫，其以适于直升机接近和定位葫芦葫芦垫的方式结合到风力涡轮机机舱中，例如通过位于风力涡轮机机舱的上表面中的凹槽内。 热交换器也可以以提供适用性的方式被定位在机舱外部的自由流动范围内，同时还允许直升机葫芦垫的最佳定位。
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公开(公告)号：US11156207B2
公开(公告)日：2021-10-26
申请号：US16619723
申请日：2018-06-08
Applicant: MHI VESTAS OFFSHORE WIND A/S
Inventor： Torben Møller Hansen , Niels Erik Danielsen , Tusitha Abeyasekera , Lars Helle , Ghada Ali Diaa Hillawi , Laurids Givskov Jørgensen , Paw Rosenvard
Abstract: The present invention relates to operation of a wind turbine using a power storage unit, such as a rechargeable battery, to power a group of power consuming units during grid loss. The wind turbine comprises a number of power consuming units being grouped into at least a first group and a second group, a first electrical converter for connecting the generator to the electrical grid, and a second electrical converter for connecting the electrical generator to the power storage unit. Upon detecting an occurrence of the grid loss, the generator is operated to ensure sufficient power of the power storage unit to operate the first group of power consuming units.
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公开(公告)号：US10704535B2
公开(公告)日：2020-07-07
申请号：US16347215
申请日：2017-11-23
Applicant: MHI Vestas Offshore Wind A/S
Inventor： Kim Christensen
Abstract: The present invention relates to an assembly of two structural parts of a wind turbine wherein the structural parts are to be connected in a flange-to-flange connection by a number of bolts and such that a flange of the first structural part and a flange of the second are centrally and rotationally aligned whereby a first borehole in the flange of the first structural part is matched and aligned with a corresponding first borehole in the flange of the second structural part. The structural parts may for example be a tower section or a foundation section. The assembly further comprises a first and a second rotational guide member releasably attached to each of the flanges of the structural parts. Each of the rotational guide members comprises a U-shaped or L-shaped structure of a first leg portion and a second leg portion connected by a central portion, the first leg portion ending in a positioning portion shaped to be inserted into a borehole of the flange, and the second leg portion comprising a stop member, and for at least one of the rotational guide members the structure comprised in the rotational guide member is U-shaped. The stop member of the first rotational guide member is configured for abutment to the second leg portion of the second rotational guide member when the flanges of the first and second structural parts are centrally and rotationally aligned. The invention further relates to a method of positioning and connecting two structural parts of a wind turbine as described above. The method includes first centrally aligning the structural parts with the flanges face-to-face and then rotating the structural part relative to each other until the rotational guide members come into contact with each other.
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