公开(公告)号：US10199954B2

公开(公告)日：2019-02-05

申请号：US15026949

申请日：2014-08-01

Applicant: GENERAL ELECTRIC TECHNOLOGY GmbH

Inventor： David Reginald Trainer ,  Omar Fadhel Jasim ,  Dumisani Simfukwe

IPC: H02M7/217 ,  H02M7/483 ,  H02M1/08 ,  H02J3/36

Abstract: A voltage source converter includes DC terminals, a plurality of single-phase limbs, and a controller. Each single-phase limb includes a phase element and switching elements. Each limb is connected between the DC terminals and is controllable to generate an AC voltage at the AC side of the corresponding phase element so as to draw a respective phase current from a multi-phase AC electrical network. The controller is configured to selectively generate a modified AC voltage demand for at least one limb in response to an imbalance in the phase currents and/or a change in electrical rating of at least one limb. The controller is configured to selectively control, in accordance with the or the respective modified AC voltage demand, the or each corresponding limb independently of the or each other limb to modify the voltage at the AC side of its phase element and thereby modify the corresponding phase current.

公开(公告)号：US10027253B2

公开(公告)日：2018-07-17

申请号：US15251491

申请日：2015-03-03

Applicant: General Electric Technology GmbH

Inventor： Omar Fadhel Jasim

IPC: H02J3/36 ,  H02M7/757 ,  H02M7/217 ,  H02M7/219 ,  H02M1/42

Abstract: In the field of high voltage direct current power transmission networks, a voltage source converter comprises first and second DC terminals for connection to a DC electrical network, and a plurality of single-phase limbs. Each single-phase limb includes a phase element, and each phase element includes at least one switching element configured to interconnect a DC voltage and an AC voltage. An AC side of each phase element is connectable to a respective phase of a multi-phase AC electrical network, and each single-phase limb is connected between the first and second DC terminals. The voltage source converter further comprises a controller configured to determine independently of one another an amount of active power (Pref) that the voltage source converter should exchange with the AC electrical network and an amount of reactive power (Qref) that the voltage source converter should exchange with the AC electrical network.

公开(公告)号：US09831759B2

公开(公告)日：2017-11-28

申请号：US15027669

申请日：2014-10-06

Applicant: GENERAL ELECTRIC TECHNOLOGY GmbH

Inventor： Omar Fadhel Jasim ,  David Reginald Trainer

IPC: H02M1/12 ,  H02M7/483 ,  H02M1/14 ,  H02M7/04

CPC classification number: H02M1/12 ,  H02M1/14 ,  H02M7/04 ,  H02M7/483 ,  H02M2007/4835

Abstract: A voltage source converter includes at least one limb connected between DC terminals, the or each limb including: a phase element including switching elements to interconnect a DC electrical network and an AC electrical network; an auxiliary sub-converter configured to be controllable to act as a waveform synthesizer to modify a first DC voltage presented to the DC electrical network; and a tertiary sub-converter connected in parallel with the electrical block and controllable to act as a waveform synthesizer to modify a second DC voltage presented to a DC side of the phase element, the tertiary sub-converter (39) including at least one energy storage device. The voltage source converter includes a controller configured to selectively control the or each tertiary sub-converter to synthesize at least one tertiary voltage component so as to transfer energy to or from that tertiary sub-converter and thereby regulate an energy level of that tertiary sub-converter.

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。

公开(公告)号：US10483762B2

公开(公告)日：2019-11-19

申请号：US15316522

申请日：2015-06-08

Applicant: General Electric Technology GmbH

Inventor： Omar Fadhel Jasim

IPC: H02J3/36 ,  H02J3/06 ,  H02J3/08 ,  H03L7/087 ,  H03L7/099

Abstract: A power transmission network is disclosed, which includes an AC electrical network connected to a point of common coupling, the point of common coupling being connectable to a further electrical device; and a processing circuit configured to receive and process a voltage of the point of common coupling to determine a phase difference between the voltages of the AC electrical network and the point of common coupling during an exchange of power between the AC electrical network and the point of common coupling.

公开(公告)号：US09847737B2

公开(公告)日：2017-12-19

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 ,  H02M7/219 ,  H02M7/493 ,  H02M7/217 ,  H02M1/00

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.

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：US09825554B2

公开(公告)日：2017-11-21

申请号：US15123091

申请日：2015-03-04

Applicant: General Electric Technology GmbH

Inventor： David Reginald Trainer ,  Omar Fadhel Jasim ,  Jonathan Charles Clare

IPC: H02M7/217 ,  H02M7/483 ,  H02M7/219 ,  H02M1/00

CPC classification number: H02M7/2173 ,  H02M7/217 ,  H02M7/219 ,  H02M7/483 ,  H02M2001/0058 ,  H02M2007/4835 ,  Y02B70/1491

Abstract: A voltage source converter comprises first and second DC terminals for connection to a DC network, and at least one limb connected between the first and second DC terminals. The or each limb includes: a phase element including two parallel-connected sets of series-connected switching elements connected in an H-bridge to define first and second diagonal switching pairs, a respective junction between each set of series-connected switching elements defining an AC terminal for connection to an AC network; and a sub-converter configured to be controllable to act as a voltage waveform synthesizer. The voltage source converter further includes a controller to operate the sub-converter to selectively synthesize a driving commutation voltage to modify a DC side current at a DC side of the H-bridge to minimize any differences in magnitude and direction between the DC side current and an AC side current at an AC side of the H-bridge.

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。