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    IMPROVEMENTS IN OR RELATING TO CONVERTERS FOR USE IN HIGH VOLTAGE DIRECT CURRENT POWER TRANSMISSION
    1.
    发明申请
    IMPROVEMENTS IN OR RELATING TO CONVERTERS FOR USE IN HIGH VOLTAGE DIRECT CURRENT POWER TRANSMISSION 审中-公开
    在高压直流电力传输中用于或与转换器相关的改进

    公开(公告)号：US20160315548A1

    公开(公告)日：2016-10-27

    申请号：US15103822

    申请日：2014-12-12

    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

    Inventor： Omar Fadhel Jasim ,  Francisco Jose Moreno Muñoz ,  Michael Marc Claude Merlin ,  Timothy Charles Green ,  Kevin Dyke

    IPC: H02M5/458

    CPC classification number: H02M1/00 ,  H02J3/36 ,  H02M5/458 ,  H02M7/483 ,  H02M7/72 ,  H02M7/797 ,  H02M2001/0003 ,  H02M2001/0025 ,  H02M2007/4835

    Abstract: In the field of high voltage direct current (HVDC) power transmission, a converter comprises three converter limbs, each corresponding to a respective phase of the converter, each extending between first and second DC terminals and each including first and second limb portions separated by an AC terminal. Each limb portion includes a chain-link converter that is operable to provide a stepped variable voltage source, and a primary switching element to selectively switch the respective limb portion into and out of circuit. The converter also includes a first controller that is programmed to selectively operate for one converter limb at a time the primary switching element in each limb portion thereof to simultaneously switch both the first and second limb portions into circuit and thereby define a fully-conducting converter limb to sequentially route via each said fully-conducting converter limb a DC current demand (IDC) between the first and second DC terminals.

    Abstract translation: 在高压直流（HVDC）电力传输领域，转换器包括三个转换器分支，每个转换器分别对应于转换器的各个相位，每个转换器分支在第一和第二直流端子之间延伸，并且每个包括第一和第二分支部分 交流电源。 每个肢体部分包括可操作以提供阶梯式可变电压源的链节转换器和用于选择性地将相应肢体部分切换到电路中的初级开关元件。 转换器还包括第一控制器，其被编程为在其每个肢体部分中的主开关元件同时将第一和第二肢体部分切换到电路中，从而定义完全导通的转换器臂 以经由每个所述完全导通转换器沿第一和第二DC端子之间的DC电流需求（IDC）顺序路由。

    CONTROL OF CONVERTERS
    5.
    发明申请
    CONTROL OF CONVERTERS 有权
    转换器控制

    公开(公告)号：US20160329804A1

    公开(公告)日：2016-11-10

    申请号：US15103792

    申请日：2014-12-12

    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

    Inventor： Sajjad Fekriasl ,  Michael Marc Claude Merlin ,  Timothy Charles Green ,  Kevin Dyke ,  Francisco Jose Moreno Muñoz ,  Omar Fadhel Jasim ,  Masoud Bazargan

    IPC: H02M1/00 ,  H02M7/797

    CPC classification number: H02M1/00 ,  H02J3/36 ,  H02M5/458 ,  H02M7/483 ,  H02M7/72 ,  H02M7/797 ,  H02M2001/0003 ,  H02M2001/0025 ,  H02M2007/4835

    Abstract: In the field of high voltage direct current power transmission networks, a method of controlling a converter that includes at least one converter limb which corresponds to a respective phase of the converter, is described. The method includes obtaining a respective AC current demand phase waveform for each converter limb which the corresponding converter limb is required to track, and a DC current demand which each converter limb is also required to track. The method further determining a limb portion current for each limb portion that the limb portion must contribute to track the corresponding required AC current demand phase waveform and the required DC current demand, and providing a limb portion voltage source for each limb portion to achieve the corresponding limb portion current. The method carrying out mathematical optimization to determine one or more optimal limb portion currents and/or provide optimal limb portion voltage sources.

    Abstract translation: 在高压直流输电网领域，描述了一种控制转换器的方法，该转换器包括至少一个对应于转换器的相位的转换器分支。 该方法包括获得相应的转换器支路需要跟踪的每个转换器支路的相应AC电流需求相位波形，以及每个转换器支路也需要跟踪的DC电流需求。 该方法进一步确定肢体部分的肢体部分电流，肢体部分必须有助于跟踪对应的所需AC电流需求相位波形和所需的DC电流需求，以及为每个肢体部分提供肢体部分电压源以实现相应的 肢体电流。 该方法进行数学优化以确定一个或多个最佳肢体部分电流和/或提供最佳肢体部分电压源。

    CONTROL OF HIGH-VOLTAGE, DIRECT CURRENT SYSTEMS
    6.
    发明申请
    CONTROL OF HIGH-VOLTAGE, DIRECT CURRENT SYSTEMS 审中-公开

    公开(公告)号：US20190296553A1

    公开(公告)日：2019-09-26

    申请号：US16302314

    申请日：2017-05-09

    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

    Inventor： Antonios TZIMAS ,  Guillaume LUCAS ,  Kevin Dyke

    IPC: H02J3/36 ,  H02M5/04

    Abstract: The present invention provides methods and apparatus for controlling HVDC power transmission systems so as to increase the effective lifetime of cables carrying the DC power (and particularly the extruded polymer insulation of those cables). The method includes entering a maintenance mode in which the electrical properties applied to the cable are varied so as to facilitate diffusion of space charge accumulation in the extruded polymer insulation.

    MODULAR MULTILEVEL CONVERTER LEG WITH FLAT-TOP PWM MODULATION, CONVERTER AND HYBRID CONVERTER TOPOLOGIES
    8.
    发明申请
    MODULAR MULTILEVEL CONVERTER LEG WITH FLAT-TOP PWM MODULATION, CONVERTER AND HYBRID CONVERTER TOPOLOGIES 有权
    具有平面PWM调制，转换器和混合转换器拓扑的模块化多电平转换器

    公开(公告)号：US20170005589A1

    公开(公告)日：2017-01-05

    申请号：US15107435

    申请日：2014-12-17

    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

    Inventor： Francisco Jose Moreno Muñoz ,  Omar Fadhel Jasim ,  Si Dang ,  Sajjad Fekriasl ,  Kevin Dyke

    IPC: H02M7/483 ,  H02M7/5395

    CPC classification number: H02M7/483 ,  H02M7/217 ,  H02M7/219 ,  H02M7/493 ,  H02M7/5395 ,  H02M2001/0058 ,  H02M2007/4835 ,  Y02B70/1491

    Abstract: A voltage source converter for interconnecting first and second electrical networks, including first and second terminals for connection to the first electrical network, and a primary converter limb extending between the first and second terminals including first and second primary limb portions separated by a third terminal connectable to the second electrical network. The converter further including a second chain-link converter connected to the third terminal and a control unit configured to selectively operate one or more chain-link modules to generate a discontinuous pulse width modulation voltage waveform. The converter further including a controller configured to selectively operate each chain-link converter to control the configuration of a discontinuous pulse width modulation voltage waveform at the third terminal. The controller including the control unit, and configured to selectively control switching of each primary limb portion into the circuit between the third terminal and one of the first and second terminals.

    Abstract translation: 用于互连第一和第二电网络的电压源转换器，包括用于连接到第一电网络的第一和第二端子，以及在第一和第二端子之间延伸的初级转换器臂，包括由可连接的第三端子分开的第一和第二主要部分 到第二电网。 所述转换器还包括连接到所述第三终端的第二链式转换器和被配置为选择性地操作一个或多个链式链接模块以产生不连续的脉冲宽度调制电压波形的控制单元。 所述转换器还包括控制器，所述控制器被配置为选择性地操作每个链式链路转换器以控制所述第三终端处的不连续脉宽调制电压波形的配置。 所述控制器包括所述控制单元，并且被配置为选择性地控制每个主要肢体部分切换到所述第三终端和所述第一和第二终端中的一个之间的电路。

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