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69 条记录 (耗时 0.014 秒)

    IMPROVEMENTS IN OR RELATING TO HVDC CONVERTER STATIONS
    2.
    发明公开
    IMPROVEMENTS IN OR RELATING TO HVDC CONVERTER STATIONS 审中-公开

    公开(公告)号：EP3726718A1

    公开(公告)日：2020-10-21

    申请号：EP19170393.3

    申请日：2019-04-19

    申请人： General Electric Technology GmbH

    发明人： MAHALINGAM, Muthukumar ,  MUNSHI, Shabar, Mustafa

    IPC分类号： H02M7/00 ,  H01F30/06 ,  H01F27/04 ,  H01F27/29

    摘要： In the field of high voltage direct current (HVDC) power transmission, a single-phase three-winding converter transformer (22), for connection with a converter (14) in a valve hall (12) of a HVDC converter station (10), comprises a first side (36) which in use faces the valve hall (12). First and second star bushings (38, 40) protrude from the first side (36) and are connectable in use to one or more further converter transformers (22) and the converter (14) in a star configuration. First and second delta bushings (42, 44) protrude also from the first side (36) and are connectable in use to one or more further converter transformers (22) and the converter (14) in a delta configuration. The first and second star bushings (38, 40) are spaced diagonally relative to one another on the first side (36), and the first and second delta bushings (42, 44) are spaced diagonally relative to one another on the first side (36).

    AC PERMANENT-MAGNET GAIN TRANSFORMER DEVICE AND VOLTAGE REGULATION CONTROL METHOD THEREOF
    6.
    发明公开
    AC PERMANENT-MAGNET GAIN TRANSFORMER DEVICE AND VOLTAGE REGULATION CONTROL METHOD THEREOF 审中-公开
    世界卫生组织世界卫生组织

    公开(公告)号：EP3073498A1

    公开(公告)日：2016-09-28

    申请号：EP14864244.0

    申请日：2014-11-19

    申请人： Dai, Shanshan

    发明人： DAI, Shanshan ,  ZHU, Shizhu

    IPC分类号： H01F30/06 ,  H01F27/24 ,  H01F27/28

    CPC分类号： H01F27/245 ,  G05F3/04 ,  H01F27/25 ,  H01F27/2823 ,  H01F27/2895 ,  H01F30/16 ,  H01F2003/103

    摘要： An AC permanent magnet gain transformer device and its voltage regulation and control method. This device adds permanent magnet or permanent magnet assembly to the structure of traditional transformer, the magnetic pole surface of permanent magnet closely clings to laminated iron core, so that the intrinsic permanent magnetic potential of permanent magnet could be elicited under the excitation of the excitation current of primary winding, overlapped and compounded with excitation magnetic potential in the general magnetic loop of closed-loop laminated iron core, and so, it's able to induce the induction electromotive force formed after the superposition of excitation flux and permanent magnet flux at the output end of secondary winding. The method for voltage regulation and control of this invention is to: input a certain amplitude of pulse current to the primary winding in order to guarantee the generation of compound excitation effect, and change the pulse count of pulse current per unit time in order to change and adjust the input and output power of this AC permanent magnet gain transformer device. This AC permanent magnet gain transformer device and its voltage regulation and control method further enhance the power transfer efficiency of transformer device, thus make up the intrinsic spoilage of traditional winding coil and laminated iron core, and save energy.

    摘要翻译： 一种交流永磁增益变压器及其电压调节和调节方法。 该装置将永磁体或永磁体组件添加到传统变压器的结构中，永磁体的磁极表面紧密贴合到层叠铁芯上，从而在励磁电流的激发下可以引起永磁体的固有永磁电位 在闭环叠层铁芯的一般磁环中与初级绕组重叠并与激磁磁势复合，因此能够引起在输出端叠加励磁磁通和永磁体磁通后形成的感应电动势 的次级绕组。 本发明的电压调节方法为：向初级绕组输入一定幅度的脉冲电流，以保证产生复合激励效应，并改变每单位时间脉冲电流的脉冲数，以便改变 并调整该交流永磁增益变压器装置的输入和输出功率。 这种交流永磁增益变压器装置及其调压方式进一步提高了变压器装置的功率传递效率，从而弥补了传统绕组线圈和层叠铁芯的内在破坏，节约了能源。

    ZERO EXCESS ENERGY STORAGE TRANSFORMER
    10.
    发明公开
    ZERO EXCESS ENERGY STORAGE TRANSFORMER 审中-公开

    公开(公告)号：EP3979276A1

    公开(公告)日：2022-04-06

    申请号：EP21200059.0

    申请日：2021-09-30

    申请人： Sweven Design Ltd

    发明人： GWYNNE, Robert William

    IPC分类号： H01F27/34 ,  H01F30/06 ,  H01F27/36 ,  H01F27/28 ,  H01F27/40

    摘要： A drive circuit configured to drive a load, the circuit comprising a transformer (1212, 2412), the transformer (1212, 2412) comprising a transformer primary comprising one or more primary windings (1712) connected to arms (1702) that pass through a magnetic material (1718), a transformer secondary comprising secondary windings (1714) connected to planar secondary conductors (1708) which pass through the inside of the arms (1702), a voltage source (2426) configured to apply a voltage across the transformer primary.