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1. 发明授权

US10916947B2 System and method for direct current power transmission 有权
公开(公告)号：US10916947B2
公开(公告)日：2021-02-09
申请号：US15129526
申请日：2015-03-27
申请人： General Electric Company
发明人： Jie Shen , Zhihui Yuan , Christof Martin Sihler , Stefan Schroeder , Mark Aaron Chan , Fei Xu
IPC分类号： H02J3/36 , H02J3/38 , H02M7/04 , H02M7/44
摘要： A modular substation (10) for subsea applications includes a plurality of modular DC/AC converters (32) configured for converting DC electrical power transmitted along a DC transmission link (24) into AC electrical power for supplying to a plurality of subsea loads (56). The plurality of modular DC/AC converters (32) is configured to couple in series to the DC transmission link (24) and couple in parallel to an AC distribution network (52). At least a first modular DC/AC converter (32) is configured to be selectively electrically and mechanically disconnected from the DC transmission link (24) and the AC distribution network (52) to facilitate maintenance of the first modular DC/AC converters (32) while the AC distribution network (52) continues to supply AC electrical power to at least one of the plurality of subsea loads (56). The modular substation (10) also comprises protection and bypass circuits (26) intended to isolate faulty DC/AC converters (32) and to facilitate safe maintenance and repair.

2. 发明授权

US10103576B2 Method and system for control power in remote DC power systems 有权
公开(公告)号：US10103576B2
公开(公告)日：2018-10-16
申请号：US15241968
申请日：2016-08-19
申请人： General Electric Company
发明人： Stefan Schroeder , Christof Martin Sihler , Sebastian Pedro Rosado
IPC分类号： H02J3/00 , H02J1/00 , H02J13/00 , H02J3/36 , H02J11/00 , H02J3/01
摘要： A method and system for a control power supply system is provided. The control power supply system includes a first conductor configured to carry a direct current (DC) electrical current from a source to a load, a second conductor configured to carry the DC electrical current from the load to the source, and an AC power source coupled to at least one of the first and the second conductors, the AC power source configured to superimpose a selectable relatively high frequency AC component onto the DC electrical current to generate a composite power signal.

3. 发明授权

US10008856B2 Power system for offshore applications 有权
公开(公告)号：US10008856B2
公开(公告)日：2018-06-26
申请号：US14935725
申请日：2015-11-09
申请人： GENERAL ELECTRIC COMPANY
发明人： Yan Pan , Martin Samuel Butcher , Dong Dong , Martin Richard Ingles , Christof Martin Sihler , Ara Panosyan
IPC分类号： H02J5/00 , H02J3/38 , H02M3/04 , H02M7/04 , H02J3/36
CPC分类号： H02J3/386 , H02J3/36 , H02J5/00 , H02J11/00 , H02M3/04 , H02M7/04 , Y02E60/60
摘要： A power system for offshore application includes a plurality of power circuits. Each of the power circuit includes an alternating current (AC) bus which supplies power to an auxiliary load and is connected to a generator. The power circuit further includes a first direct current (DC) bus having a first DC voltage supplying power to a first load and a second DC bus having a second DC voltage supplying power to a second load. The power circuit also includes a first DC to DC converter coupled between the first DC bus and the second DC bus, wherein the first DC to DC converter is configured for bidirectional power flow and an AC to DC converter coupled between the AC bus and the first DC bus. The first DC bus of at least one power circuit is coupled to the second DC bus of at least another power circuit with a second DC to DC converter. The system also includes a controller configured to control the operation of the first DC to DC converter, second DC to DC converter and the AC to DC converter for regulating the first and second DC voltages. The controller is further configured to provide power to the second DC bus from the at least one AC to DC converter during a first operating state and from the first DC to DC converter during a second operating state.

4. 发明授权

US09627862B2 Methods and systems for subsea direct current power distribution 有权
公开(公告)号：US09627862B2
公开(公告)日：2017-04-18
申请号：US14140672
申请日：2013-12-26
申请人： General Electric Company
发明人： Nicolai Hytten , Piniwan Thiwanka Bandara Wijekoon , Jean-Louis Pouliquen , Henri Baerd , Christof Martin Sihler
IPC分类号： H02J1/10 , H02B1/24 , H02B7/00 , H02J1/08 , H02J3/36 , H02J4/00 , E21B41/08 , E21B43/017 , H02J1/00
CPC分类号： H02B1/24 , E21B41/08 , E21B43/017 , H02B7/00 , H02J1/08 , H02J1/102 , H02J3/36 , H02J4/00 , H02J2001/002 , Y02E60/60 , Y10T29/49002 , Y10T307/305 , Y10T307/707
摘要： A submersible power system includes at least one DC power source and at least one submersible power distribution system electrically coupled to the at least one DC power source. The at least one submersible power distribution system includes at least one receptacle configured to be exposed to an underwater environment. The at least one submersible power distribution system also includes a plurality of power conversion modules removably positioned within the at least one receptacle. Each power conversion module of the plurality of power conversion modules includes an enclosure configured to be exposed to the underwater environment. The at least one submersible power distribution system further includes at least one switchyard module selectably coupled to and uncoupled from the plurality of power conversion modules. The at least one switchyard module includes a plurality of switches configured to electrically bypass and isolate each power conversion module from the DC power source.

5. 发明授权

US09312783B2 Voltage source current controlled multilevel power converter 有权
标题翻译：电压源电流控制多电平功率转换器
公开(公告)号：US09312783B2
公开(公告)日：2016-04-12
申请号：US13717802
申请日：2012-12-18
申请人： General Electric Company
发明人： Simon Herbert Schramm , Thomas Brueckner , Stefan Schroeder , Christof Martin Sihler , Sebastian Pedro Rosado
IPC分类号： H02J3/00 , H02M7/217 , H02M3/07 , H02M3/158 , H02M7/483 , H02M5/458
CPC分类号： H02M7/217 , H02M3/07 , H02M3/158 , H02M5/458 , H02M7/483 , H02M7/487 , H02M2007/4835 , Y10T307/406
摘要： A power converter module including a voltage source current controlled power converter for providing unidirectional current having at least four output voltage levels is provided. The voltage source current controlled power converter includes an input terminal and an output terminal, and a first conductive path and a second conductive path is coupled in parallel to each other between the input terminal and the output terminal. Each of the conductive paths comprises at least one diode and at least one switch coupled in series to the respective conductive path. The at least one diode in the first conductive path are coupled closer to the input terminal and the at least one diode in the second conductive path are coupled closer to the output terminal. The voltage source current controlled power converter further includes at least two energy storage elements coupled between the first conductive path and the second conductive path.
摘要翻译：提供一种功率转换器模块，其包括用于提供具有至少四个输出电压电平的单向电流的电压源电流控制功率转换器。电压源电流控制功率转换器包括输入端子和输出端子，并且第一导电路径和第二导电路径在输入端子和输出端子之间彼此并联耦合。每个导电路径包括至少一个二极管和至少一个与各个导电路径串联耦合的开关。第一导电路径中的至少一个二极管被更靠近输入端子耦合，并且第二导电路径中的至少一个二极管被更靠近输出端子耦合。电压源电流控制功率转换器还包括耦合在第一导电路径和第二导电路径之间的至少两个能量存储元件。

6. 发明申请

US20150249402A1 DC POWER TRANSMISSION SYSTEMS AND METHOD OF ASSEMBLING THE SAME 有权
标题翻译：直流电力传输系统及其组装方法
公开(公告)号：US20150249402A1
公开(公告)日：2015-09-03
申请号：US14193525
申请日：2014-02-28
申请人： General Electric Company
发明人： Piniwan Thiwanka Bandara Wijekoon , Christof Martin Sihler , Stefan Schroeder , Jie Shen , Pierluigi Tenca
IPC分类号： H02M7/06 , H02M1/12 , H02M5/04 , H02M1/14
CPC分类号： H02M7/06 , H02J3/36 , H02M1/12 , H02M1/14 , H02M5/04 , H02M7/48 , Y02E60/60
摘要： A DC power transmission system is configured to generate an electric field including components substantially constant with respect to time and varying with time. The DC power transmission system includes an AC stage configured to receive AC electrical power. The AC stage includes a transformer including primary windings and secondary windings configured to be electromagnetically coupled to, and electrically isolated from, each other. The AC stage also includes an AC/AC converter having substantially no insulating features against the at least one substantially constant component of the electric field. The AC/AC converter is electrically coupled to the primary windings. The DC power transmission system also includes an AC/DC conversion stage positioned downstream of the AC stage. The AC/DC conversion stage includes an AC/DC rectifier configured to convert AC electrical power to DC electrical power without external control. The AC/DC rectifier is coupled to the secondary windings.
摘要翻译：直流电力传输系统被配置为产生包括相对于时间基本上恒定且随时间变化的分量的电场。直流电力传输系统包括被配置为接收AC电力的AC级。 AC级包括变压器，其包括初级绕组和次级绕组，其被配置为电磁耦合到彼此并且彼此电隔离。 AC级还包括AC / AC转换器，其基本上没有与电场的至少一个基本恒定的分量相对的绝缘特性。 AC / AC转换器电耦合到初级绕组。直流电力传输系统还包括位于AC级下游的AC / DC转换级。 AC / DC转换级包括AC / DC整流器，被配置为在没有外部控制的情况下将AC电力转换为DC电力。 AC / DC整流器耦合到次级绕组。

7. 发明申请

US20140167508A1 VOLTAGE SOURCE CURRENT CONTROLLED MULTILEVEL POWER CONVERTER 有权
标题翻译：电压源电流控制多电平转换器
公开(公告)号：US20140167508A1
公开(公告)日：2014-06-19
申请号：US13717802
申请日：2012-12-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Simon Herbert Schramm , Thomas Brueckner , Stefan Schroeder , Christof Martin Sihler , Sebastian Pedro Rosado
IPC分类号： H02M7/217 , H02M5/458
CPC分类号： H02M7/217 , H02M3/07 , H02M3/158 , H02M5/458 , H02M7/483 , H02M7/487 , H02M2007/4835 , Y10T307/406
摘要： A power converter module including a voltage source current controlled power converter for providing unidirectional current having at least four output voltage levels is provided. The voltage source current controlled power converter includes an input terminal and an output terminal, and a first conductive path and a second conductive path is coupled in parallel to each other between the input terminal and the output terminal. Each of the conductive paths comprises at least one diode and at least one switch coupled in series to the respective conductive path. The at least one diode in the first conductive path are coupled closer to the input terminal and the at least one diode in the second conductive path are coupled closer to the output terminal. The voltage source current controlled power converter further includes at least two energy storage elements coupled between the first conductive path and the second conductive path.
摘要翻译：提供一种功率转换器模块，其包括用于提供具有至少四个输出电压电平的单向电流的电压源电流控制功率转换器。电压源电流控制功率转换器包括输入端子和输出端子，并且第一导电路径和第二导电路径在输入端子和输出端子之间彼此并联耦合。每个导电路径包括至少一个二极管和至少一个与各个导电路径串联耦合的开关。第一导电路径中的至少一个二极管被更靠近输入端子耦合，并且第二导电路径中的至少一个二极管被更靠近输出端子耦合。电压源电流控制功率转换器还包括耦合在第一导电路径和第二导电路径之间的至少两个能量存储元件。

8. 发明授权

US09853451B2 Direct current power system 有权
公开(公告)号：US09853451B2
公开(公告)日：2017-12-26
申请号：US14609991
申请日：2015-01-30
申请人： GENERAL ELECTRIC COMPANY
发明人： Pierluigi Tenca , Christof Martin Sihler
IPC分类号： H02H7/26 , H02J1/10 , H02H3/087 , H02H3/20 , H02J3/38 , H03K17/08 , H03K17/66
CPC分类号： H02J3/381 , H02H3/087 , H02H3/202 , H02H7/268 , H02J1/10 , H03K17/08 , H03K17/66
摘要： A direct current (DC) power system includes a plurality of energy sources supplying power to a plurality of loads via a DC bus having at least one positive rail. The DC bus includes two DC bus subsections and a DC bus separator coupled between the two DC bus subsections. The DC bus separator includes a controllable switch with at least one of its terminals coupled with a terminal of an inductor to provide a current path between the two DC bus subsections during normal operation via the inductor. The controllable switch is switched off to break the current path when a fault on the positive rail is detected. Furthermore, the DC bus separator includes a diode connected in parallel to the inductor and arranged to provide a circulating current path to dissipate an inductor current in the inductor when the controllable switch is switched off.

9. 发明授权

US09537428B2 Combined power transmission and heating systems and method of operating the same 有权
标题翻译：联合输变电加热系统及其运行方法
公开(公告)号：US09537428B2
公开(公告)日：2017-01-03
申请号：US14154486
申请日：2014-01-14
申请人： General Electric Company
发明人： Nicolai Hytten , Christof Martin Sihler
IPC分类号： H05B1/02 , H02M7/70 , H02J3/36 , H05B3/42 , H05B3/02 , F16L53/00
CPC分类号： H02M7/70 , F16L53/37 , H02J3/36 , H05B3/02 , H05B3/42 , H05B2214/03 , Y02P80/15
摘要： A combined direct current DC power transmission and heating system is provided. The system includes a rectifier station configured to generate a DC link current. The system also includes a downstream converter station positioned remotely from the rectifier station. The downstream converter station is configured to generate power supplied to an electrical load using at least a portion of the DC link current. The system also includes a return conductor electrically coupled to the rectifier station and the downstream converter station. The return conductor is configured to transmit a return current from the downstream converter station to the rectifier station. The return conductor is also configured to generate heat from resistive losses induced by the return current; and conduct the heat generated by the return current to a fluid being transported from a proximity of the downstream converter station to a proximity of the rectifier station.
摘要翻译：提供组合的直流直流输电和加热系统。该系统包括被配置为产生直流链路电流的整流站。该系统还包括远离整流站的下游转换站。下游转换站被配置为使用DC链路电流的至少一部分来产生提供给电负载的功率。该系统还包括电耦合到整流站和下游转换器站的回路导体。返回导体被配置为将返回电流从下游转换器站传输到整流器站。返回导体还被配置为从由返回电流引起的电阻性损耗产生热量; 并且将由返回电流产生的热量传导到从下游转换站附近运送到整流站附近的流体。

10. 发明申请

US20160226251A1 DIRECT CURRENT POWER SYSTEM 有权
标题翻译：直流电力系统
公开(公告)号：US20160226251A1
公开(公告)日：2016-08-04
申请号：US14609991
申请日：2015-01-30
申请人： GENERAL ELECTRIC COMPANY
发明人： Pierluigi Tenca , Christof Martin Sihler
IPC分类号： H02J3/38
CPC分类号： H02J3/381 , H02H3/087 , H02H3/202 , H02H7/268 , H02J1/10 , H03K17/08 , H03K17/66
摘要： A direct current (DC) power system includes a plurality of energy sources supplying power to a plurality of loads and a common DC bus having at least one positive rail. The common DC bus is coupled between the plurality of energy sources and the plurality of loads. The common DC bus includes at least two DC bus subsections with DC power transfer capability therebetween and at least one DC bus separator coupled between the at least two DC bus subsections. The DC bus separator includes at least one positive rail controllable switching with at least one of its terminals coupled with at least one terminal of a positive rail inductor to provide a current path between the at least two DC bus subsections during normal operation via the positive rail inductor. The at least one positive rail controllable switch is controlled to be switched off to break the current path when a fault on the positive rail is detected. Furthermore, the DC bus separator includes at least one positive rail diode connected in parallel to the at least one positive rail inductor and arranged to provide a circulating current path to dissipate an inductor current in the at least one positive rail inductor when the at least one positive rail controllable switch is switched off.
摘要翻译：直流（DC）电力系统包括向多个负载供电的多个能量源和具有至少一个正轨的公共DC母线。公共DC总线耦合在多个能量源和多个负载之间。公共DC总线包括其间具有DC功率传输能力的至少两个DC总线子部分和耦合在该至少两个DC总线子部分之间的至少一个DC总线分离器。 DC总线分离器包括至少一个正轨可控开关，其至少一个端子与正轨电感器的至少一个端子耦合，以在正常操作期间通过正轨提供至少两个DC总线子部分之间的电流路径电感。当检测到正轨上的故障时，至少一个正轨可控开关被控制为关断以断开电流路径。此外，DC总线隔离器包括至少一个与至少一个正轨电感器并联连接的正极二极管，并且被布置成当至少一个正轨电感器提供循环电流路径以耗散至少一个正轨电感器中的电感器电流正轨可控开关关闭。

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