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。

公开(公告)号：US10027217B2

公开(公告)日：2018-07-17

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 ,  H02M7/483 ,  H02M5/458 ,  H02M7/797 ,  H02J3/36 ,  H02M7/72

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.

公开(公告)号：US20160141876A1

公开(公告)日：2016-05-19

申请号：US14896907

申请日：2014-06-06

Applicant: ALSTOM TECHNOLOGY LTD ,  General Electric Technology GmbH

Inventor： Colin Donald Murray Oates ,  David Reginald Trainer ,  Ralph Feldman ,  Michael Marc Claude Merlin ,  Timothy Charles Green

IPC: H02J3/18

CPC classification number: H02J3/18 ,  H02J3/36 ,  H02M7/483 ,  H02M7/49 ,  H02M2001/0003 ,  H02M2007/4835

Abstract: An alternate arm converter includes at least one converter limb that defines first and second limb portions. Each limb portion includes at least one director switch connected in series with a chain-link converter between one of two DC terminals and an AC terminal of the converter. The chain-link converters are operable to generate a voltage waveform at the AC terminal, and the director switches are operable to switch the respective chain-link converters in and out of circuit between the respective DC terminal and the AC terminal. The converter also includes a controller configured to selectively control the switching of each director switch to form a current circulation path including each limb portion and the DC network. The controller, during formation of the current circulation path, forces an alternating current to flow through the current circulation path to transfer energy between the chain-link converters of the limb portions.

Abstract translation: 替代臂转换器包括限定第一和第二肢体部分的至少一个转换器肢体。 每个肢体部分包括至少一个导向开关，其与两个DC端子之一和转换器的AC端子之间的链节转换器串联连接。 链式转换器可操作以在AC端子处产生电压波形，并且导向开关可操作以在相应的DC端子和AC端子之间切换各个链节转换器进出电路。 该转换器还包括控制器，其被配置为选择性地控制每个导向开关的切换以形成包括每个肢体部分和DC网络的电流循环路径。 在形成当前循环路径期间，控制器迫使交流电流流过电流循环路径以在肢体部分的链节转换器之间传递能量。

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。