Method and device for locating partial discharges in an electric high-voltage apparatus
    2.
    发明授权
    Method and device for locating partial discharges in an electric high-voltage apparatus 失效
    用于在电气高压设备中定位局部放电的方法和装置

    公开(公告)号:US06340890B1

    公开(公告)日:2002-01-22

    申请号:US08849448

    申请日:1997-08-06

    IPC分类号: G01R3108

    CPC分类号: G01R31/1209

    摘要: A method and apparatus for location of partial discharges in an electric high-voltage apparatus, such as a power transformer, which is arranged in a container filled with an insulating medium is provided. At least three ultrasonic detectors are applied with mutually known positions on the outside of the container and in acoustic contact therewith. The times of arrival of a wavefront arriving at the detectors and originating from a partial discharge are determined, and on the basis of the times of arrival and on the basis of the known mutual positions of the detectors, the direction the partial discharge is determined.

    摘要翻译: 提供了一种在设置在填充有绝缘介质的容器中的诸如电力变压器的电气高压装置中用于定位局部放电的方法和装置。 至少三个超声波检测器在容器的外侧上与相互已知的位置一起施加,并且与声学接触。 确定到达检测器并来自局部放电的波前的到达时间,并且基于到达时间并且基于检测器的已知相互位置,确定局部放电的方向。

    Wave power unit, a use of a such and a method of producing electric energy
    3.
    发明授权
    Wave power unit, a use of a such and a method of producing electric energy 有权
    波功率单元,使用这样的电能和生产电能的方法

    公开(公告)号:US09581129B2

    公开(公告)日:2017-02-28

    申请号:US13700618

    申请日:2010-05-28

    摘要: The invention relates to a wave power unit with a floating body (1), a submerged station (2) and flexible connection means (3) connecting the floating body (1) to the submerged station (100). The submerged station (100) has a stator 5 (5) and a moving part (6). According to the invention the flexible connection means (3) is provided with a damper (12). The damper (12) is arranged to absorb tensile forces in the flexible connection means (3). The invention also relates to a use of such a wave power unit and to a 10 method for producing and supplying electric energy.

    摘要翻译: 本发明涉及具有浮体(1),浸没站(2)和将浮体(1)连接到浸没站(100)的柔性连接装置(3)的波浪发电单元。 浸没站(100)具有定子5(5)和移动部(6)。 根据本发明,柔性连接装置(3)设置有阻尼器(12)。 阻尼器(12)布置成吸收柔性连接装置(3)中的张力。 本发明还涉及这种波动单元的使用以及用于生产和供应电能的10种方法。

    WAVE POWER UNIT WITH GUIDING DEVICE
    4.
    发明申请
    WAVE POWER UNIT WITH GUIDING DEVICE 有权
    具有导向装置的波动电源单元

    公开(公告)号:US20130140824A1

    公开(公告)日:2013-06-06

    申请号:US13700571

    申请日:2010-05-28

    IPC分类号: F03B13/14

    摘要: The invention relates to a wave power unit having a submerged station anchored on the sea bottom, a floating body floating on the sea surface and flexible connection means (3) connecting these. The submerged station has a linear generator with a reciprocating translator. According to the invention, the station includes a guiding device (9) for the flexible connection means (3). The guiding device (9) has a plurality of rotatable rollers (15a-18c). The rollers (15a-18c) form a passage for the flexible connection means (3). The invention also relates to use of the wave power unit and to a method for producing electric power.

    摘要翻译: 本发明涉及一种具有锚固在海底的潜水站,浮在海面上的浮体和连接它们的柔性连接装置(3)的波浪发电单元。 淹没站具有一个带往复平移的线性发电机。 根据本发明,车站包括用于柔性连接装置(3)的引导装置(9)。 引导装置(9)具有多个可旋转辊(15a-18c)。 辊(15a-18c)形成用于柔性连接装置(3)的通道。 本发明还涉及波功率单元的使用和用于产生电力的方法。

    System for generating electric energy
    5.
    发明授权
    System for generating electric energy 失效
    发电系统

    公开(公告)号:US08212411B2

    公开(公告)日:2012-07-03

    申请号:US12225661

    申请日:2006-03-29

    IPC分类号: F03B13/10

    摘要: A system for generating electric energy from renewable energy sources such as waves includes a plurality of generator aggregates (4a-6c) arranged in the sea and a plurality of switchgears (1a-1c) arranged in the sea. Each switchgear (1a-1c) is connected to a plurality of the generator aggregates (4a-6c). A plurality of primary intermediate stations (17a-17c) are respectively connected to a plurality of the switchgears, and a secondary intermediate station (19) is connected to a plurality of the primary intermediate stations (17a-17c). The secondary intermediate station is also connected to a land based electric network. Switching means (192) is present for allowing selective connection to various locations (193, 194, 195) in the electric network.

    摘要翻译: 用于从诸如波浪的可再生能源产生电能的系统包括布置在海中的多个发电机集合体(4a-6c)和布置在海中的多个开关装置(1a-1c)。 每个开关装置(1a-1c)连接到多个发电机集合体(4a-6c)。 多个初级中间站(17a-17c)分别连接到多个开关设备,并且次级中间站(19)连接到多个初级中间站(17a-17c)。 次级中间站也连接到陆基电网。 存在切换装置(192),用于允许选择性地连接到电网中的各种位置(193,194,195)。

    HYDROPOWER PLANT PROVIDED WITH A GRATING AND METHOD FOR OPERATING A SUCH
    6.
    发明申请
    HYDROPOWER PLANT PROVIDED WITH A GRATING AND METHOD FOR OPERATING A SUCH 有权
    水泥厂提供了一种格栅和操作方法

    公开(公告)号:US20110197578A1

    公开(公告)日:2011-08-18

    申请号:US13059549

    申请日:2008-08-18

    申请人: Mats Leijon

    发明人: Mats Leijon

    IPC分类号: F03B13/18

    摘要: The invention relates to a hydropower plant including a water turbine submerged in a water current, A grating is located adjacent the water turbine. According to the invention the grating is arranged to guide the water flow in the water current such that the velocity of the water between the grating and the water turbine becomes non-uniform. The invention also relates to a use of the hydropower plant for generating electric energy for supply to an electric network. Further the invention relates to a method for operating a hydropower plant.

    摘要翻译: 本发明涉及一种水力发电厂,包括淹没在水流中的水轮机,光栅位于水轮机附近。 根据本发明,光栅布置成引导水流中的水流,使得光栅和水轮机之间的水流速度变得不均匀。 本发明还涉及水电站用于产生用于向电网供应的电能的用途。 此外,本发明涉及一种操作水电站的方法。

    Wind power plant
    7.
    发明授权
    Wind power plant 失效
    风力发电厂

    公开(公告)号:US07061133B1

    公开(公告)日:2006-06-13

    申请号:US09554888

    申请日:1998-11-30

    IPC分类号: F03D9/00 H02K3/40

    摘要: The magnetic circuit of a generator in a wind power plant is arranged to directly supply a high supply voltage of 2-50 kV, preferably higher than 10 kV. The generator is provided with solid insulation and its winding includes a cable (6) comprising one or more current-carrying conductors (31) with a number of strands (36) surrounded by at least one outer and one inner semiconducting layer (34, 32) and intermediate insulating layers (33). The outer semiconducting layer (34) is at earth potential. The stator winding may be produced with full or fractional slot winding, the phases of the winding being Y-connected. The Y-point may be insulated and protected from over-voltage by means of surge arrestors, or else the Y-point may be earthed via a suppression filter. The invention also relates to a wind power plant, a generator included in the plant and a variable speed system for such a plant.

    摘要翻译: 风力发电厂中的发电机的磁路被布置成直接供应2-50kV,优选高于10kV的高电源电压。 发电机具有固体绝缘,其绕组包括电缆(6),电缆(6)包括一个或多个载流导体(31),多个线束(36)由至少一个外部和一个内部半导体层(34,32)包围 )和中间绝缘层(33)。 外部半导体层(34)处于地电位。 定子绕组可以用全部或分数的槽绕制成,绕组的相位是Y形连接的。 Y点可以通过浪涌抑制器进行绝缘和保护,防止过电压,否则Y点可能通过抑制滤波器接地。 本发明还涉及一种风力发电厂,包括在工厂中的发电机和用于这种设备的变速系统。

    Wind power plant with vertical axix turbine
    9.
    发明申请
    Wind power plant with vertical axix turbine 有权
    风力发电厂与垂直轴式涡轮机

    公开(公告)号:US20050151376A1

    公开(公告)日:2005-07-14

    申请号:US10501075

    申请日:2002-12-19

    IPC分类号: F03D3/00 F03D9/00 H02P9/04

    摘要: A wind-power unit has a wind turbine has an electric generator connected to the wind turbine. The stator of the generator has a winding formed of a high-voltage cable having a core of conducting material, a first layer of semiconducting material surrounding the core, an insulating layer of solid material surrounding the first layer, and a second layer of semiconducting material surrounding th solid insulation. The wind turbine has a plurality of turbine blades running vertically and being connected to a turbine shaft. The generator is arranged at the lower end of the turbine shaft. A wind-power plant; the use of a wind-power unit; and a method of generating electric power are described.

    摘要翻译: 风力发电单元具有风力涡轮机,其具有连接到风力涡轮机的发电机。 发电机的定子具有由具有导电材料芯的高压电缆,围绕芯的第一半导体材料层,围绕第一层的固体材料的绝缘层和第二层半导体材料构成的绕组 围绕固体绝缘。 风力涡轮机具有垂直延伸并连接到涡轮轴的多个涡轮机叶片。 发电机设置在涡轮轴的下端。 风力发电厂; 使用风力发电机组; 并描述发电的方法。

    Wave-power unit and plant for the production of electric power and a method of generating electric power
    10.
    发明申请
    Wave-power unit and plant for the production of electric power and a method of generating electric power 失效
    用于生产电力的波动单元和设备以及发电的方法

    公开(公告)号:US20050121915A1

    公开(公告)日:2005-06-09

    申请号:US10501068

    申请日:2002-12-19

    CPC分类号: F03B13/1885 Y02E10/38

    摘要: A wave-power unit has a floating body and a rotating electric generator mechanically connected to the floating body. A mechanical movement transmitter is arranged for transmission of vertical movements of the floating body to rotary movements of the generator rotor. A wave-power plant employs a plurality of wave-power units. Use of the wave-power unit and a method of generating electric energy as described.

    摘要翻译: 波动单元具有浮动体和与浮体机械连接的旋转发电机。 机械运动变送器布置成用于将浮体的垂直运动传递到发电机转子的旋转运动。 波浪发电厂采用多个波浪发电机组。 使用波功率单元和如上所述产生电能的方法。