Direct drive generator and wind turbine
    41.
    发明申请
    Direct drive generator and wind turbine 有权
    直接驱动发电机和风力发电机

    公开(公告)号:US20090134629A1

    公开(公告)日:2009-05-28

    申请号:US12313612

    申请日:2008-11-21

    Inventor: Henrik Stiesdal

    Abstract: The invention concerns a direct drive or directly driven generator for a wind turbine comprising a stator and a rotor, wherein the stator comprises a stator ring comprising several ring-segment-shaped stator segments each having at least one stator element for the power generation and wherein the rotor comprises a rotor ring pivotable around a centre axis of the generator, the rotor ring comprises several ring-segment-shaped rotor segments each having at least one rotor element for the power generation. Furthermore the invention concerns a wind turbine comprising such a direct drive generator.

    Abstract translation: 本发明涉及一种用于包括定子和转子的风力涡轮机的直接驱动或直接驱动的发电机,其中定子包括定子环,定子环包括多个环形段定子段,每个定子环具有用于发电的至少一个定子元件,并且其中 转子包括围绕发电机的中心轴线可枢转的转子环,转子环包括多个环形段转子段,每个转子段具有用于发电的至少一个转子元件。 此外,本发明涉及一种包括这种直接驱动发电机的风力涡轮机。

    Method for manufacturing windmill blades
    42.
    发明授权
    Method for manufacturing windmill blades 有权
    制造风车叶片的方法

    公开(公告)号:US07473385B2

    公开(公告)日:2009-01-06

    申请号:US10292904

    申请日:2002-11-13

    Abstract: A method for making a windmill blade is provided, whereby problems with glue joints and with exposure of the workers to environmentally hazardous substances are avoided. This is effected by making the windmill blade in a closed mold with a mold core (3) inside mold parts (22, 48) for formation of a mold cavity (51), in which fiber material (45, 47) and core material (46) are placed. After applying vacuum to the mold cavity (51), matrix material (57) is injected via a filling pipe (29), which is placed at a downwardly oriented side edge of the blade during the filling. Hereby is established a flow front (61) which is used for indicating complete filling when this reaches the trailing edge of the blade and penetrates out through overflow apertures.

    Abstract translation: 提供了制造风车叶片的方法,由此避免了胶接点的问题和工人暴露于有害环境的物质。 这通过将模具芯(3)内的模芯(3)制成密封模具来实现,用于形成模腔(51),其中纤维材料(45,47)和芯材料( 46)被放置。 在对模腔(51)施加真空后,通过填充管(29)注入基质材料(57),填充管(29)在填充期间放置在叶片的向下定向的侧边缘处。 因此,建立了一个流动前部(61),当前进到达叶片的后缘并穿过溢流孔时,其用于指示完全填充。

    Power converters
    43.
    发明申请
    Power converters 有权
    电源转换器

    公开(公告)号:US20070108771A1

    公开(公告)日:2007-05-17

    申请号:US11292669

    申请日:2005-12-02

    CPC classification number: H02P9/102 H02P2101/15

    Abstract: The present invention provides a power converter that can be used to interface a generator that provides variable voltage at variable frequency to a supply network operating at nominally fixed voltage and nominally fixed frequency and including features that allow the power converter to remain connected to the supply network and retain control during supply network fault and transient conditions. The power converter includes a generator bridge electrically connected to the stator of the generator and a network bridge. A dc link is connected between the generator bridge and the network bridge. A filter having network terminals is connected between the network bridge and the supply network. A first controller is provided for controlling the operation of the semiconductor power switching devices of the generator bridge. Similarly, a second controller is provided for controlling the operation of the semiconductor power switching devices of the network bridge. The first controller uses a dc link voltage demand signal VDC_NET* indicative of a desired dc link voltage to control the semiconductor power switching devices of the network bridge to achieve the desired level of dc link voltage that corresponds to the dc link voltage demand signal VDC_NET*. The second controller uses a power demand signal P* indicative of the level of power to be transferred from the dc link to the supply network through the network bridge, and a voltage demand signal VTURB* indicative of the voltage to be achieved at the network terminals of the filter to control the semiconductor power switching devices of the network bridge to achieve the desired levels of power and voltage that correspond to the power and voltage demand signals P* and VTURB*.

    Abstract translation: 本发明提供了一种功率转换器,其可用于将以可变频率提供可变电压的发电机连接到以标称固定电压和标称固定频率运行的供电网络,并且包括允许功率转换器保持连接到供电网络的特征 并在供电网络故障和瞬态条件下保持控制。 功率转换器包括电连接到发电机的定子的发电机桥和网桥。 直流链路连接在发电机桥和网桥之间。 具有网络终端的过滤器连接在网桥与供电网之间。 提供了用于控制发电机桥的半导体功率开关器件的操作的第一控制器。 类似地,提供了用于控制网桥的半导体功率开关器件的操作的第二控制器。 第一控制器使用表示期望的直流链路电压的直流链路电压需求信号VDC_NET *来控制网桥的半导体功率开关装置,以实现对应于直流链路电压需求信号VDC_NET *的期望的直流链路电压电平, 。 第二控制器使用指示通过网桥从直流链路传递到供电网络的功率电平的功率需求信号P *,以及指示要在网络端口实现的电压的电压需求信号VTURB * 以控制网桥的半导体功率开关器件,以实现与功率和电压需求信号P *和VTURB *相对应的期望功率和电压水平。

    Generator for a windmill, stator module for use in such a generator and use of such a generator
    44.
    发明授权
    Generator for a windmill, stator module for use in such a generator and use of such a generator 有权
    用于风车的发电机,用于这种发电机的定子模块和这种发电机的使用

    公开(公告)号:US06781276B1

    公开(公告)日:2004-08-24

    申请号:US09937711

    申请日:2001-10-01

    Abstract: The invention concerns a generator for a windmill. The generator is of the kind being directly coupled to the main shaft of the wind rotor of the windmill. The generator is a stator consisting of a number of stator modules that are individual and which may be installed, repaired and dismantled individually and independently of each other. This implies that it is very easy and thereby cheaper to mount the mill, especially at sea, as the stator for the generator can be transported in smaller units, which also makes it easier to assemble the stator in the tower top section. By sequent repairs and other maintenance of the generator it is not necessary either to use large cranes, but it is sufficient to use smaller hoisting devices that may be handled by one or two persons.

    Abstract translation: 本发明涉及一种用于风车的发电机。 发电机直接与风车风轮的主轴连接。 发电机是由多个定子模块构成的定子,它们是单独的并且可以彼此独立且独立地安装,修理和拆卸。 这意味着,由于用于发电机的定子可以以更小的单元运输,所以安装磨机非常容易,特别是在海上安装,这也使得更容易在塔顶部分中组装定子。 通过对发电机进行后续修理和其他维护,无需使用大型起重机,但使用可由一个或两个人处理的较小起重装置就足够了。

    Storage and recovery of thermal energy using heat storage material being filled in a plurality of enclosures

    公开(公告)号:US09726437B2

    公开(公告)日:2017-08-08

    申请号:US14352288

    申请日:2012-09-04

    CPC classification number: F28D20/0056 F01K3/12 F28D2020/0078 Y02E60/142

    Abstract: A thermal energy storage and recovery device is provided including a container having a first fluid terminal for inserting heat transfer medium into the interior of the container and a second fluid terminal for extracting heat transfer medium from the interior of the container, a heat storage material for receiving thermal energy from the heat transfer medium when in a first operational mode and releasing thermal energy to the heat transfer medium when in a second operational mode, and a plurality of enclosures each filled at least partially with a part of the heat storage material. The enclosures are spatially arranged within the container so a flow of the heat transfer medium is guidable between the first and second fluid terminals and a direct thermal contact between the heat transfer medium and the enclosures is achievable as the heat transfer medium flows between the first and second fluid terminals.

    Heating mats arranged in a loop on a blade
    48.
    发明授权
    Heating mats arranged in a loop on a blade 有权
    加热垫布置在叶片上的环中

    公开(公告)号:US09415875B2

    公开(公告)日:2016-08-16

    申请号:US13639148

    申请日:2010-09-16

    Inventor: Henrik Stiesdal

    Abstract: A wind turbine blade is disclosed. The blade includes a heating mat for generating heat. The heating mat is mounted at an outer surface of the blade. The heating mat includes a first section with a first end section and a second section with a second end section. The first end section and the second end section are electrically connectable to a respective power terminal for supplying power to the heating mat. The second end section defines an opposite end section of the heating mat in a longitudinal direction of the heating mat with respect to the first end section. The first section and the second section run along the surface of the blade in one or more loops from the first end section to the second end section.

    Abstract translation: 公开了一种风力涡轮机叶片。 叶片包括用于产生热量的加热垫。 加热垫安装在叶片的外表面。 加热垫包括具有第一端部的第一部分和具有第二端部的第二部分。 第一端部和第二端部电连接到用于向加热垫供电的相应的电源端子。 第二端部部分在加热垫的相对于第一端部部分的纵向方向上限定加热垫的相对端部。 第一部分和第二部分在从第一端部到第二端部的一个或多个环中沿着叶片的表面延伸。

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