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1. 发明公开

EP3063864A1 DC TO DC CONVERTER ASSEMBLY 审中-公开
标题翻译： DC / DC变换装置
公开(公告)号：EP3063864A1
公开(公告)日：2016-09-07
申请号：EP14789308.5
申请日：2014-10-28
申请人： General Electric Technology GmbH
发明人： MORENO MUÑOZ, Francisco Jose , DYKE, Kevin James
IPC分类号： H02M3/335 , H02M7/483
CPC分类号： H02M3/335 , H02M3/33584 , H02M7/483 , H02M2007/4835
摘要： There is provided a DC to DC converter assembly (20) for interconnecting DC electrical networks (32,34). The DC to DC converter assembly (20) comprises: first and second converters (22,24), each converter (22,24) including first and second DC terminals (26,28) for connection to a respective one of the DC electrical networks (32,34), each converter (22,24) including a converter limb (30) extending between the corresponding first and second DC terminals (26,28), the converter limb (30) of the first converter (22) having a pair of first limb portions (36a,36b) separated by a first AC terminal (40), the converter limb (30) of the second converter (24) having a pair of second limb portions (38a,38b) separated by a second AC terminal (42), each limb portion (36a,36b,38a,38b) including at least one switching element, at least one first limb portion (36a,36b) including at least one first module (46a), at least one second limb portion (38a,38b) including at least one second module (46b), the or each module (46a,46b) including at least one switching element and at least one energy storage device, the or each switching element and the or each energy storage device in each module (46a,46b) combining to selectively provide a voltage source, the or each switching element in each limb portion (36a,36b,38a,38b) being switchable to switch the corresponding limb portion (36a,36b,38a,38b) into or out of circuit between the corresponding AC and DC terminals (26,28,40,42) to control the configuration of an AC voltage (66,68) at the corresponding AC terminal (26,28,40,42); an AC transmission link (56), the first AC terminal (40) being connected to the second AC terminal (42) via the AC transmission link (56), the first AC terminal (40) being connected at a first end of the AC transmission link (56), the second AC terminal (42) being connected at a second end of the AC transmission link (56); and a controller (65) configured to control switching of the or each switching element in each module (46a,46b) so as to transfer energy between at least one first module (46a) and at least one second module (46b), wherein the controller (65) is further configured to selectively control switching of the or each switching element in each limb portion (36a,36b,38a,38b) to control the configuration of the AC voltage (66,68) at the corresponding AC terminal (40,42) so as to minimise a net change in energy level of the DC to DC converter assembly (20) during a transfer of energy between at least one first module (46a) and at least one second module (46b).

2. 发明授权

EP3459153B1 CONTROL OF HIGH-VOLTAGE, DIRECT-CURRENT SYSTEMS 有权
公开(公告)号：EP3459153B1
公开(公告)日：2020-04-22
申请号：EP17727803.3
申请日：2017-05-09
申请人： General Electric Technology GmbH
发明人： TZIMAS, Antonios , LUCAS, Guillaume , DYKE, Kevin James
IPC分类号： H02J3/36

3. 发明授权

EP3440473B1 IMPROVEMENTS IN OR RELATING TO THE DETECTION OF A FAULT ON A POWER CONVERTER 有权
公开(公告)号：EP3440473B1
公开(公告)日：2020-03-18
申请号：EP17715146.1
申请日：2017-04-03
申请人： General Electric Technology GmbH
发明人： BRIFF, Pablo , MORENO MUÑOZ, Francisco Jose , DYKE, Kevin James
IPC分类号： G01R31/42 , G01R31/08

4. 发明公开

EP3459153A1 CONTROL OF HIGH-VOLTAGE, DIRECT-CURRENT SYSTEMS 有权
公开(公告)号：EP3459153A1
公开(公告)日：2019-03-27
申请号：EP17727803.3
申请日：2017-05-09
申请人： General Electric Technology GmbH
发明人： TZIMAS, Antonios , LUCAS, Guillaume , DYKE, Kevin James
IPC分类号： H02J3/36
摘要： 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.

5. 发明公开

EP3440473A1 IMPROVEMENTS IN OR RELATING TO THE DETECTION OF A FAULT ON A POWER CONVERTER 有权
公开(公告)号：EP3440473A1
公开(公告)日：2019-02-13
申请号：EP17715146.1
申请日：2017-04-03
申请人： General Electric Technology GmbH
发明人： BRIFF, Pablo , MORENO MUÑOZ, Francisco Jose , DYKE, Kevin James
IPC分类号： G01R31/42 , G01R31/08
摘要： A DC transmission network 10 comprises a near-end power converter 12 and at least one far-end power converter 14 interconnected by one or more portions 16 of transmission medium 18. A fault on a far-end power converter is detected by establishing a linear time-invariant model 22 of the transmission medium lying between the far-end power converter and the near-end power converter. A response characteristic of the time-invariant model is detected and an output operating property of the transmission medium at the near-end power converter is measured. One far-end power converter is identified as a far-end power converter of interest 24 and a corresponding input operating property of the transmission medium at the far-end power converter of interest is derived by applying an inverse of the response characteristic of the time-invariant model to the measured output operating property of the transmission medium at the near-end power converter. The derived input operating property of the transmission medium at the far-end power converter of interest is compared with a fault characteristic to determine whether there is a fault on the far-end power converter of interest.

6. 发明公开

EP3051682A1 Voltage source converter 审中-公开
标题翻译：电压源转换器
公开(公告)号：EP3051682A1
公开(公告)日：2016-08-03
申请号：EP15275028.7
申请日：2015-01-29
申请人： General Electric Technology GmbH
发明人： OATES, Colin Donald Murray , TRAINER, David Reginald , JASMIN, Omar Fadhel , CHIVITE-ZABALZA, Francisco Javier , DYKE, Kevin James , MORENO MUÑOZ, Francisco Jose , WHITEHOUSE, Robert Stephen
IPC分类号： H02M7/217 , H02M7/487
CPC分类号： H02M7/217 , H02M7/487 , H02M2007/4835
摘要： A voltage source converter (30) comprises: first and second DC terminals (32,34) for connection to a DC network (40); a third terminal (36) for connection to ground or a voltage; and a plurality of AC terminals (38), each AC terminal (38) for connection to a respective phase of a multi-phase AC network (42).
The voltage source converter (30) includes:
a plurality of multi-level switching cells (44), each multi-level switching cell (44) including an AC connecting point and first, second and third further connecting points, the third terminal (36) connected to each third further connecting point of each multi-level switching cell (44), the AC connecting point of each multi-level switching cell (44) being connected to a respective one of the plurality of AC terminals (38), each multi-level switching cell (44) being arranged to permit selectively switching of the corresponding AC terminal (38) into circuit with each of the corresponding further connecting points separately;
a switching controller (46) programmed to control the switching of each multi-level switching cell (44) to selectively switch the corresponding AC terminal (38) into circuit with each of the corresponding further connecting points separately;
first and second waveform synthesizers (48,50), the first waveform synthesizer (48) connected between the first DC terminal (32) and each first further connecting point of each multi-level switching cell (44), the second waveform synthesizer (50) connected between the second DC terminal (34) and each second further connecting point of each multi-level switching cell (44); and
a synthesizer controller (64) programmed to selectively operate each waveform synthesizer (48,50) to synthesize a voltage waveform to control the configuration of the AC voltage at the AC terminal (38) that is switched into circuit with the corresponding further connecting point.
摘要翻译：电压源转换器（30）包括：用于连接到DC网络（40）的第一和第二DC端子（32,34）; 第三端子（36），用于连接到地或电压; 和多个AC端子（38），每个AC端子（38）用于连接到多相AC网络（42）的相应相。电压源转换器（30）包括：多个多级开关单元（44），每个多级开关单元（44）包括AC连接点以及第一，第二和第三另外的连接点，第三端子（36 ）连接到每个多级开关单元（44）的每个第三另外的连接点，每个多级开关单元（44）的AC连接点连接到多个AC端子（38）中的相应一个，每个多级开关单元（44）被布置成允许将对应的AC端子（38）选择性地切换成分别与对应的另外的连接点中的每一个进行电路连接; 开关控制器（46），其被编程为控制每个多级开关单元（44）的切换以选择性地将对应的AC端子（38）切换成分别与每个对应的另外的连接点电路连接; 第一和第二波形合成器（48,50），连接在第一DC端（32）和每个多电平开关单元（44）的每个第一另外的连接点之间的第一波形合成器（48），第二波形合成器）连接在第二DC端子（34）和每个多级开关单元（44）的每个第二另外的连接点之间; 以及合成器控制器（64），其被编程为选择性地操作每个波形合成器（48,50）以合成电压波形以控制AC端子（38）处的交流电压的配置，所述交流端子（38）与对应的另一个连接点。

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