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1. 发明申请

US20150256081A1 MODULAR MULTILEVEL DC/DC CONVERTER FOR HVDC APPLICATIONS 有权
标题翻译：用于高压直流应用的多模DC / DC转换器
公开(公告)号：US20150256081A1
公开(公告)日：2015-09-10
申请号：US14434861
申请日：2012-10-11
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Mark-Matthias Bakran , Hans-Joachim Knaak , Andre Schoen
IPC分类号： H02M3/28
CPC分类号： H02M3/28 , H02M3/33584 , H02M2007/4835
摘要： A DC converter is suitable for continuous operation for connecting high-voltage DC networks having different voltages. The DC converter has a first partial converter and a second partial converter, which are connected in series with each other, forming a converter series circuit. The converter series circuit extends between the DC terminals of a DC connection. The second partial converter extends between the DC terminals of a second DC connection. The first partial converter and the second partial converter are connected to each other via a power exchange device, such that the exchange of electrical power between the first partial converter and the second partial converter is made possible via the power exchange device.
摘要翻译： DC转换器适用于连接具有不同电压的高压直流网络。 DC转换器具有彼此串联连接的第一部分转换器和第二部分转换器，形成转换器串联电路。转换器串联电路在直流连接的直流端子之间延伸。第二部分转换器在第二DC连接的DC端子之间延伸。第一部分转换器和第二部分转换器经由电力交换装置彼此连接，使得经由电力交换装置使第一部分转换器和第二部分转换器之间的电力交换成为可能。

2. 发明授权

US10425015B2 Converter arrangement having a star point reactor 有权
公开(公告)号：US10425015B2
公开(公告)日：2019-09-24
申请号：US16098195
申请日：2016-05-04
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Christoph Armschat , Andre Schoen , Dag Soerangr
IPC分类号： H02M7/219 , H02M1/088 , H02M1/12 , H01F27/24 , H01F30/06 , H01F27/28
摘要： A converter arrangement has a converter which can be switched between an AC network and a DC voltage circuit and which has power semiconductor valves that extend between AC voltage connections and DC voltage connections. Each power semiconductor valve has a series connection of bipolar submodules that in turn include power semiconductor devices. The arrangement further includes a star point reactor which is arranged on the AC voltage side of the converter and has impedance coils that are connected to a grounded neutral point. In order to better balance the voltages in the DC circuit, the impedance coils have a common coil core.

3. 发明授权

US10141732B2 Apparatus for switching in a DC voltage grid 有权
公开(公告)号：US10141732B2
公开(公告)日：2018-11-27
申请号：US14407704
申请日：2013-05-15
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Enrique Gaxiola , Andre Schoen
IPC分类号： H02H3/087 , H02H7/26 , H02H3/08 , H02J1/00 , H01H33/59
摘要： An apparatus for switching in a DC voltage mains has a switching device for interrupting the flow of current in at least one line of the DC voltage grid. The switching device is connected into the line of the DC voltage grid by way of a first and a second connection. An attenuation member absorbs energy from the applied terminal voltage. The attenuation member has a first and a second node that are electrically connected via an attenuation element, an electrical connection from the first node to the first connection via a first controlled or uncontrolled switching element, and an electrical connection from the first node to the second connection via a second controlled or uncontrolled switching element.

4. 发明授权

US10826379B2 Converter arrangement comprising a star point reactor 有权
公开(公告)号：US10826379B2
公开(公告)日：2020-11-03
申请号：US16349303
申请日：2016-11-22
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Christoph Armschat , Andre Schoen
IPC分类号： H02M1/12 , H02J3/01 , H02M7/219 , H02J3/36 , H02M7/483
摘要： A converter arrangement includes a converter which can be switched between an AC voltage supply system and a DC voltage circuit and which has converter valves that extend between AC voltage connections and DC voltage connections. Each converter valve has a series connection of bipolar submodules that include power semiconductor devices. The converter arrangement further includes a star point reactor which is located on the AC voltage side of the converter and which has impedance coils that are interconnected to form a grounded neutral point. A suppression filter is connected between the neutral point and a ground connection. The suppression filter is configured to suppress a harmonic of an alternating voltage in the AC voltage supply system.

5. 发明授权

US09748848B2 Modular multilevel DC/DC converter for HVDC applications 有权
公开(公告)号：US09748848B2
公开(公告)日：2017-08-29
申请号：US14434861
申请日：2012-10-11
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Mark-Matthias Bakran , Hans-Joachim Knaak , Andre Schoen
IPC分类号： H02M3/28 , H02M7/483 , H02M3/335
CPC分类号： H02M3/28 , H02M3/33584 , H02M2007/4835
摘要： A DC converter is suitable for continuous operation for connecting high-voltage DC networks having different voltages. The DC converter has a first partial converter and a second partial converter, which are connected in series with each other, forming a converter series circuit. The converter series circuit extends between the DC terminals of a DC connection. The second partial converter extends between the DC terminals of a second DC connection. The first partial converter and the second partial converter are connected to each other via a power exchange device, such that the exchange of electrical power between the first partial converter and the second partial converter is made possible via the power exchange device.

6. 发明授权

US11289996B2 Converter assembly with an ability to disconnect a fault current and a method for disconnecting a fault current at a converter assembly of this type 有权
公开(公告)号：US11289996B2
公开(公告)日：2022-03-29
申请号：US16635658
申请日：2017-07-31
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Andre Schoen
IPC分类号： H02M1/32 , H02J3/36 , H02M7/483 , H02M7/5387 , H02M7/217
摘要： A converter assembly has multi-phase multi-stage converters which are connected to parallel-connected transformers. The converter assembly contains series-connected partial converters, each having three parallel-connected bipolar phase modules, which are formed of two series-connected converter modules. The connection points of the converter modules form the phase connections for the transformers. The phase modules of a first partial converter consist only of unipolar sub-modules and those of a second partial converter consists only of bipolar sub-modules. A controller respectively reduces at least the partial DC voltage of the second partial converter, wherein the partial DC voltage thereof can be inverted at least until compensating the partial DC voltage of the first partial converter if the direct current exceeds a target value.

7. 发明申请

US20200186022A1 CONVERTER ARRANGEMENT COMPRISING A STAR POINT REACTOR 审中-公开
公开(公告)号：US20200186022A1
公开(公告)日：2020-06-11
申请号：US16349303
申请日：2016-11-22
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Christoph Armschat , Andre Schoen
IPC分类号： H02M1/12 , H02J3/01 , H02J3/36 , H02M7/219
摘要： A converter arrangement includes a converter which can be switched between an AC voltage supply system and a DC voltage circuit and which has converter valves that extend between AC voltage connections and DC voltage connections. Each converter valve has a series connection of bipolar submodules that include power semiconductor devices. The converter arrangement further includes a star point reactor which is located on the AC voltage side of the converter and which has impedance coils that are interconnected to form a grounded neutral point. A suppression filter is connected between the neutral point and a ground connection. The suppression filter is configured to suppress a harmonic of an alternating voltage in the AC voltage supply system.

8. 发明授权

US09705406B2 Modular multi-level DC-DC converter for HVDC applications 有权
公开(公告)号：US09705406B2
公开(公告)日：2017-07-11
申请号：US14904984
申请日：2013-07-15
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Mark-Matthias Bakran , Dominik Ergin , Hans-Joachim Knaak , Andre Schoen
IPC分类号： H02M3/335 , H02M7/48 , H02M3/156 , H02M7/483 , H02M7/493 , H02J3/36
CPC分类号： H02M3/33507 , H02J3/36 , H02M3/156 , H02M7/483 , H02M7/493 , H02M2007/4835 , Y02E60/60
摘要： A DC-DC converter for connecting high-voltage DC networks has series-connected sub-converters. The high-voltage DC networks which can be connected to the DC-DC converter can have different transmission symmetries by way of power exchanging devices and additional power exchanging devices. Thus, a symmetrical monopole can be connected to an asymmetrical bipolar network using the invention.

9. 发明申请

US20150171617A1 APPARATUS FOR SWITCHING IN A DC VOLTAGE GRID 审中-公开
标题翻译：用于在直流电压网格中切换的装置
公开(公告)号：US20150171617A1
公开(公告)日：2015-06-18
申请号：US14407704
申请日：2013-05-15
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Enrique Gaxiola , Andre Schoen
IPC分类号： H02H3/087 , H02H3/08 , H02J1/00
CPC分类号： H02H3/087 , H01H33/596 , H02H3/08 , H02H7/268 , H02J1/00
摘要： An apparatus for switching in a DC voltage mains has a switching device for interrupting the flow of current in at least one line of the DC voltage grid. The switching device is connected into the line of the DC voltage grid by way of a first and a second connection. An attenuation member absorbs energy from the applied terminal voltage. The attenuation member has a first and a second node that are electrically connected via an attenuation element, an electrical connection from the first node to the first connection via a first controlled or uncontrolled switching element, and an electrical connection from the first node to the second connection via a second controlled or uncontrolled switching element.
摘要翻译：用于切换直流电压电源的装置具有用于中断直流电压网格的至少一行中的电流流动的开关装置。开关装置通过第一和第二连接连接到直流电网的线路中。衰减构件从施加的端子电压吸收能量。衰减构件具有经由衰减元件电连接的第一和第二节点，经由第一受控或不受控制的开关元件从第一节点到第一连接的电连接，以及从第一节点到第二节点的电连接通过第二受控或不受控制的开关元件连接。

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