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1. 发明授权

EP3373436B1 IMPROVEMENTS IN OR RELATING TO LINE COMMUTATED CONVERTERS 有权
公开(公告)号：EP3373436B1
公开(公告)日：2019-11-06
申请号：EP17159423.7
申请日：2017-03-06
申请人： General Electric Technology GmbH
发明人： WHITEHOUSE, Robert Stephen , BARKER, Carl David
IPC分类号： H02M7/162 , H02M1/32

2. 发明公开

EP3329506A1 ELECTRICAL ASSEMBLY 有权
公开(公告)号：EP3329506A1
公开(公告)日：2018-06-06
申请号：EP16744781.2
申请日：2016-07-28
申请人： General Electric Technology GmbH
发明人： WHITEHOUSE, Robert Stephen , BARKER, Carl David , ADAMCZYK, Andrzej
IPC分类号： H01H9/54 , H01H33/59 , H02J1/00 , H02J3/36
CPC分类号： H02J3/36 , H01H9/548 , H01H33/596 , H02J1/08 , H02J2003/365 , Y02E60/60
摘要： An electrical assembly for use in an electrical system comprising a DC path which includes a DC power transmission medium; and a current commutation device 212, which includes a switching element 214, which may be an IGBT or other kind of electronic switch, and an energy absorbing element 216, which may be a linear or non-linear resistor. The switching element 214 is arranged to permit a current flowing through the DC path to flow through the switching element 214 and at the same time bypass the energy absorbing element 216. The electrical assembly further includes a control unit 220 programmed to selectively control the switching of the switching element 214, for example in response to a fault, to commutate the current directly from the switching element 214 to the energy absorbing element 216 in order to increase the resultant voltage drop caused by the flow of direct current through the DC path and oppose the flow of the current through the DC path.

3. 发明授权

EP3338336B1 ELECTRICAL ASSEMBLY 有权
公开(公告)号：EP3338336B1
公开(公告)日：2020-09-30
申请号：EP16757000.1
申请日：2016-08-18
申请人： General Electric Technology GmbH
发明人： GUPTA, Robin , WHITEHOUSE, Robert Stephen , BARKER, Carl David
IPC分类号： H02J3/36 , H02M7/483 , H02M1/32 , H02J3/18 , H02H9/04 , H02H3/02 , H02H3/087 , H02H7/22 , H02H7/26

4. 发明公开

EP3396838A1 ALTERNATE ARM CONVERTER 有权
公开(公告)号：EP3396838A1
公开(公告)日：2018-10-31
申请号：EP17168007.7
申请日：2017-04-25
申请人： General Electric Technology GmbH
发明人： GINNAREDDY, Rajaseker , TRAINER, David Reginald , BARKER, Carl David
IPC分类号： H02M7/483 , H02M1/12 , H02M1/14
CPC分类号： H02M1/14 , H02M1/12 , H02M2007/4835
摘要： A converter (30) comprises first and second DC terminals (32,34) connectable in use to a DC network (40), the converter (30) including a converter limb (36) extending between the DC terminals (32,34), the converter limb (36) including first and second limb portions separated by an AC terminal (38), the AC terminal (38) connectable in use to an AC voltage, each limb portion including at least one director switch (44) connected in series with a waveform synthesizer between the AC terminal (44) and a respective one of the first and second DC terminals (32,34), the waveform synthesizers operable to control the modulation of an AC voltage waveform at the AC terminal (38), each director switch (44) operable to switch the respective waveform synthesizer into and out of circuit between the respective DC terminal (32,34) and the AC terminal (38); and
a controller (56) programmed to selectively control the switching of the director switches (44) to switch both of the limb portions into circuit concurrently to form a current conduction path between the DC terminals (32,34), the current conduction path configured to carry a current for presentation to the DC network (40),
wherein the controller (56) is programmed to selectively operate the waveform synthesizers to inject at least one harmonic component to modulate the AC voltage waveform at the AC terminal (38) so that during the formation of the current conduction path the magnitude of the modulated AC voltage waveform is lower than the magnitude of the fundamental component of the AC voltage waveform, and wherein the at least one harmonic component is a non-triplen harmonic component.

5. 发明公开

EP3373436A1 IMPROVEMENTS IN OR RELATING TO LINE COMMUTATED CONVERTERS 有权
公开(公告)号：EP3373436A1
公开(公告)日：2018-09-12
申请号：EP17159423.7
申请日：2017-03-06
申请人： General Electric Technology GmbH
发明人： WHITEHOUSE, Robert Stephen , BARKER, Carl David
IPC分类号： H02M7/162 , H02M1/32
摘要： In the field of line commutated converters, for use in high voltage direct current (HVDC) power transmission, a line commutated converter (10) comprises a plurality of converter limbs (12A, 12B, 12C) that extend between first and second DC terminals (16, 18). Each converter limb (12A, 12B, 12C) includes first and second limb portions (22, 24) which are separated by an AC terminal (26A, 26B, 26C). The first limb portions (22) together define a first limb portion group (28) and the second limb portions (24) together define a second limb portion group (30). Each limb portion (22, 24) includes at least one switching element (36 1 , 36 2 , 36 3 , 36 4 , 36 1 , 36 6 ) that is configured to turn on and conduct current when it is forward biased and it receives a turn on signal and to naturally turn off and no longer conduct current when it is reverse biased and the current flowing through it falls to zero. The converter (10) also includes a control unit (38) which is programmed to, in use, control successive switching of the switching elements (36 1 , 36 2 , 36 3 , 36 4 , 36 5 , 36 6 ) whereby a first switching element (36 1 ) in the first limb portion group (28) and a second switching element (36 2 ) in the second limb portion group (30) and a different converter limb (12B, 12C) to the first switching element (36 1 ) connect two corresponding AC terminals (26A, 26C in series between the first and second DC terminals (16, 18). The control unit (38) is further programmed to send a third switching element (36 3 ) in the first limb portion group (28) a turn on signal whereby the third switching element (36 3 ) turns on and begins to conduct current while the current flowing through the first switching element (36 1 ) begins to fall to zero and the first switching element (36 1 ) prepares to naturally turn off, and to subsequently send a fourth switching element (36 4 ) in the second limb portion group (30) and a different converter limb (12A, 12C) to the third switching element (36 3 ) a turn on signal whereby the fourth switching element turns (36 4 ) on and begins to conduct current while the current flowing through the second switching element (36 2 ) begins to fall to zero and the second switching element (36 2 ) prepares to naturally turn off. The control unit (38) also checks for an abnormal current flow (56) associated with the first switching element (36 1 ) during a finite monitoring period (42', 42"; 62', 62") to establish whether correct natural turn off of the first switching element (36 1 ) occurs.

6. 发明公开

EP3297149A1 PARALLEL-CONNECTED CONVERTER ASSEMBLY 审中-公开
标题翻译：并联转换器组件
公开(公告)号：EP3297149A1
公开(公告)日：2018-03-21
申请号：EP16189081.9
申请日：2016-09-15
申请人： General Electric Technology GmbH
发明人： TRAINER, David Reginald , GINNAREDDY, Rajseker , JASIM, Omar Fadhel , BARKER, Carl David , MORENO MUÑOZ, Francisco Jose , NOLAN, Andrew
IPC分类号： H02M7/49 , H02J3/36 , H02M7/493 , H02M7/757 , H02M7/483
CPC分类号： H02M7/49 , H02J3/1842 , H02J3/36 , H02J2003/365 , H02M7/493 , H02M7/7575 , H02M2007/4835 , Y02E40/22 , Y02E60/60
摘要： A parallel-connected converter assembly (40) comprises: first and second converters (42, 44), each converter (42, 44) including first and second DC terminals, each converter (42, 44) including at least one converter limb extending between the corresponding DC terminals, each converter limb including first and second limb portions separated by an AC terminal (58), each AC terminal (58) connectable in use to an AC voltage (82), each limb portion including at least one director switch connected between the AC terminal (58) and a respective one of the first and second DC terminals, the director switches of the first and second limb portions operable to switch the respective limb portions into and out of circuit between the respective DC terminal and the AC terminal (58); first and second DC transmission media (46, 48) respectively including first and second DC network terminals (78, 80) connectable in use to a DC network, the first DC transmission medium (78) interconnecting the first DC terminals of the converters (42, 44), the second DC transmission medium (80) interconnecting the second DC terminals of the converters (42, 44); and a controller programmed to selectively control the switching of the director switches of each converter limb to switch both of the corresponding limb portions into circuit concurrently to form a current conduction path in the corresponding converter (42, 44), the respective current conduction path configured to carry a current for presentation to the DC network terminals, wherein the controller is further programmed to selectively control the switching of the director switches so that, in an operating cycle of the parallel-connected converter assembly (40), the parallel-connected converter assembly (40) switches between: a first mode in which the respective current conduction path is formed in the first converter (42) and the respective current conduction path is not formed in the second converter (44); and a second mode in which the respective current conduction path is formed in the second converter (44) and the respective current conduction path is not formed in the first converter (42).
摘要翻译：并联连接的转换器组件（40）包括：第一和第二转换器（42,44），每个转换器（42,44）包括第一和第二DC端子，每个转换器（42,44）包括至少一个转换器分支，相应的DC端子，每个转换器支路包括由AC端子（58）分开的第一和第二支路部分，每个AC端子（58）在使用时可连接到AC电压（82），每个支路部分包括连接的至少一个控制器开关在AC端子（58）与第一和第二DC端子中的相应的一个之间，第一和第二臂部分的导向器开关可操作以将相应的臂部分切换进入和离开相应DC端子和AC端子之间的电路（58）; 第一和第二DC传输介质（46,48），分别包括可连接到DC网络的第一和第二DC网络端子（78,80），所述第一DC传输介质（78）将所述转换器的第一DC端子，所述第二DC传输介质（80）将所述转换器（42,44）的所述第二DC端子互连; 以及控制器，其被编程为选择性地控制每个转换器臂的导向器开关的切换，以将两个对应的臂部分同时切换到电路中以在对应的转换器（42,44）中形成电流传导路径，相应的电流传导路径被配置以向所述DC网络终端传送用于呈现的电流，其中所述控制器被进一步编程为选择性地控制所述导向器开关的切换，使得在所述并联连接的转换器组件（40）的操作循环中，所述并联连接的转换器其中，在第一转换器（42）中形成相应的电流传导路径并且在第二转换器（44）中没有形成相应的电流传导路径的第一模式; 以及第二模式，其中各个电流传导路径形成在第二转换器（44）中并且相应的电流传导路径不形成在第一转换器（42）中。

7. 发明公开

EP3322062A1 IMPROVEMENTS IN OR RELATING TO POWER TRANSMISSION NETWORKS 有权
标题翻译：电力传输网络的改进或与电力传输网络有关的改进
公开(公告)号：EP3322062A1
公开(公告)日：2018-05-16
申请号：EP16198035.4
申请日：2016-11-09
申请人： General Electric Technology GmbH
发明人： WHITEHOUSE, Robert Stephen , BARKER, Carl David , GHEBREYESUS, Ghirmazion
IPC分类号： H02J3/36 , H02M7/757
CPC分类号： H02J3/36 , Y02E60/60
摘要： In the field of high voltage direct current (HVDC) power transmission there is provided a power converter assembly (10) comprising a line-commutated power converter (12) that is configured to transfer power from a DC network (14) to a corresponding receiving AC network (16). The power converter assembly (10) also includes a control unit which is operatively associated with the line-commutated power converter (12) and is programmed, in response to the receiving AC network (16) exhibiting a reduced AC voltage (V a , V b , V c ), to cause a reduction in the operating DC voltage (V DC ) of the line-commutated power converter (12) by the DC network (14).
摘要翻译：在高压直流（HVDC）功率传输的领域中，提供了一种功率转换器组件（10），该功率转换器组件（10）包括线路换向功率转换器（12），其被配置为将来自DC网络（14）的功率传送到对应的接收 AC网络（16）。响应于接收AC网络（16）呈现降低的AC电压（Va，Vb），功率转换器组件（10）还包括控制单元，该控制单元可操作地与线换向功率转换器 Vc），以便由DC网络（14）引起线性换向功率转换器（12）的操作DC电压（VDC）的降低。

8. 发明公开

EP3267544A1 DIRECT CURRENT POWER TRANSMISSION GRID 有权
标题翻译：直流电力传输网格
公开(公告)号：EP3267544A1
公开(公告)日：2018-01-10
申请号：EP16178684.3
申请日：2016-07-08
申请人： General Electric Technology GmbH
发明人： BRIFF, Pablo , BARKER, Carl David , KING, Rosemary , MORENO MUNOZ, Francisco Jose
IPC分类号： H02J1/08 , H02J1/10 , H02J3/36
CPC分类号： H02J1/08 , H02J1/102 , H02J3/36 , Y02E60/60
摘要： A power transmission network comprises:
a plurality of converters (10, 12, 14) interconnected via a plurality of electrical elements;
at least one power flow router (16), the or each power flow router (16) being operatively connected to at least one of the plurality of electrical elements, the or each power flow router (16) being configured to be controllable to selectively control current flow (I 1 , I 2 , I 3 , I 12 , I 13 , I 23 ) in at least one of the plurality of electrical elements so as to direct power between two or more of the plurality of converters (10, 12, 14); and
a controller (38) configured to selectively control the plurality of converters (10, 12, 14) and the or each power flow router (16) to control power flow in the power transmission network;
wherein the controller (38) is configured to:
carry out a first mathematical optimisation to determine one or more optimal operating set points of one or more of the converters;
after carrying out the first mathematical optimisation, carry out a second mathematical optimisation to determine one or more optimal current flows (I 1 , I 2 , I 3 , I 12 , I 13 , I 23 ) in the plurality of electrical elements; and
control the one or more of the converters in accordance with the or each determined optimal operating set point, and control the power flow router (16) or at least one of the power flow routers (16) to achieve the or each determined optimal current flow(I 1 , I 2 , I 3 , I 12 , I 13 , I 23 ) in the plurality of electrical elements.
摘要翻译：一种电力传输网络，包括：经由多个电气元件互连的多个转换器（10,12,14）至少一个电力电量路由器（16），所述电力电量路由器或每个电力电量路由器（16）可操作地连接到所述多个电气元件中的至少一个，所述或每个电力电量路由器（16）被配置为可控制以选择性地控制在所述多个电气元件中的至少一个电气元件中的电流（I1，I2，I3，I12，I13，I23），以便在所述多个变换器（10,12,14）中的两个或更多个之间引导电力。以及控制器（38），其被配置为选择性地控制所述多个转换器（10,12,14）和所述或每个电力潮流路由器（16）以控制所述电力传输网络中的电力流动; 其中所述控制器（38）配置成：执行第一数学优化以确定一个或多个所述转换器的一个或多个最佳操作设定点; 在执行第一数学优化之后，执行第二数学优化以确定所述多个电气元件中的一个或多个最佳电流流动（I1，I2，I3，I12，I13，I23）并且根据所述或每个确定的最优操作设定点来控制所述一个或多个转换器，并且控制所述电力电量路由器（16）或所述电力电量路由器（16）中的至少一个以实现所述或每个确定的最优电流在多个电气元件中流动（I1，I2，I3，I12，I13，I23）。

9. 发明公开

EP3070806A1 POWER TRANSMISSION NETWORK 有权
标题翻译：电力传输网络
公开(公告)号：EP3070806A1
公开(公告)日：2016-09-21
申请号：EP15275078.2
申请日：2015-03-19
申请人： General Electric Technology GmbH
发明人： ADAMCZYK, Andrzej , BARKER, Carl David , WHITEHOUSE, Robert Stephen
IPC分类号： H02J3/36 , H02M7/757
摘要： A power transmission network, for interconnecting at least one variable power source (28) and at least one AC electrical network (30), comprises:
at least one DC transmission link (20) for DC power transmission between at least one network side converter (24) and at least one source side converter (24);
at least one AC transmission link (26) for AC power transmission from the or the respective variable power source (28) to at least one source side converter (24);
at least one source side converter (24) including: a DC connecting point operably connected to the or the respective DC transmission link (20); and an AC connecting point operably connected to the or the respective AC transmission link (26);
at least one network side converter (22) including: an AC connecting point for connection to the or the respective AC electrical network (30); and a DC connecting point operably connected to the or the respective DC transmission link (20); and
a control system (32a,32b,34),
wherein at least one network side converter (22) is designated as a first converter, and the control system (32a,32b,34) is configured to operate the or each first converter in a DC voltage control mode as a DC slack bus to vary a DC voltage at its DC connecting point with respect to the power generated by the or the respective variable power source (28).
摘要翻译：一种用于互连至少一个可变电源（28）和至少一个AC电网（30）的电力传输网络，包括：至少一个DC传输链路（20），用于在至少一个网络侧转换器 24）和至少一个源侧转换器（24）; 至少一个AC传输链路（26），用于从所述或各个可变电源（28）到至少一个源侧转换器（24）的AC电力传输; 至少一个电源侧转换器（24），包括：可操作地连接到所述或各个DC传输链路（20）的DC连接点; 和可操作地连接到所述或各个AC传输链路（26）的AC连接点; 至少一个网络侧转换器（22），包括：AC连接点，用于连接到所述或各个AC电网（30）; 和可操作地连接到所述或各个DC传输链路（20）的DC连接点; 和控制系统（32a，32b，34），其中至少一个网络侧转换器（22）被指定为第一转换器，并且控制系统（32a，32b，34）被配置为将所述或每个第一转换器作为DC松弛总线的DC电压控制模式，以相对于由所述或各个可变电源（28）产生的电力在其DC连接点处改变DC电压。

10. 发明公开

EP3070805A1 Power transmission network 有权
标题翻译：输电网络
公开(公告)号：EP3070805A1
公开(公告)日：2016-09-21
申请号：EP15275080.8
申请日：2015-03-19
申请人： General Electric Technology GmbH
发明人： ADAMCZYK, Andrzej , BARKER, Carl David , WHITEHOUSE, Robert Stephen
IPC分类号： H02J3/24 , H02J3/36 , H02J3/38 , H02M7/48
CPC分类号： H02J3/36 , H02J3/24 , H02J3/38 , H02J2003/365 , H02M7/7575 , H02M7/797 , H02M2001/0025 , Y02E60/60
摘要： A power transmission network comprises:
a variable power source;
an AC transmission link for AC power transmission from the variable power source to at least one source side converter;
at least one source side converter including: an AC connecting point operably connected to the AC transmission link; and a DC connecting point for connection to a DC transmission link; and
a control system configured to operate the source side converter or at least one of the source side converters in a frequency damping mode to control an AC voltage at its AC connecting point and thereby damp at least one frequency component at its AC connecting point and/or in the AC transmission link.
摘要翻译：输电网络包括：可变电源; AC传输链路，用于从可变电源到至少一个电源侧转换器的AC电力传输; 至少一个源侧转换器，包括：可操作地连接到所述AC传输链路的AC连接点; 和用于连接到DC传输链路的DC连接点; 以及控制系统，其被配置为以频率衰减模式操作所述源侧变换器或所述源侧变换器中的至少一个，以控制其AC连接点处的AC电压并由此衰减其AC连接点处的至少一个频率分量和/ 或在AC传输链路中。

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