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1. 发明申请

US20110044082A1 VOLTAGE SOURCE CONVERTER 有权
标题翻译：电压源转换器
公开(公告)号：US20110044082A1
公开(公告)日：2011-02-24
申请号：US12933357
申请日：2008-03-28
申请人： Staffan Norrga , Tomas U. Jonsson
发明人： Staffan Norrga , Tomas U. Jonsson
IPC分类号： H02M7/217
CPC分类号： H02M7/483 , B60L15/007 , H02M7/49 , H02M7/5388 , H02M2001/325 , H02M2007/4835 , Y02T10/645
摘要： A Voltage Source Converter having at least one phase leg connected to opposite poles of a direct voltage side of the converter and comprising a series connection of switching cells has an arrangement configured to apply a pressure to opposite ends of stacks of semiconductor assemblies for pressing the assemblies towards each other so as to obtain electric contact between semiconductor assemblies in said stack while ensuring that the semiconductor assemblies of a first path of each switching cell of the converter go into a permanently closed circuit state in case of a failure of the respective switching cell. A second path of each switching cell has means configured to keep said second path including an energy storing capacitor non-conducting upon occurrence of a said failure.
摘要翻译：一种电压源转换器，其具有连接到转换器的直流电压侧的相对极点的至少一个相位支路，并且包括开关单元的串联连接，该配置被配置为向半导体组件堆叠的相对端施加压力，用于按压组件朝向彼此以便在所述堆叠中的半导体组件之间获得电接触，同时确保在各个开关单元发生故障的情况下，转换器的每个开关单元的第一路径的半导体组件进入永久闭合电路状态。每个开关单元的第二路径具有被配置为在发生所述故障时保持包括储能电容器不导通的所述第二路径的装置。

2. 发明授权

US08830708B2 Fault current limitation in DC power transmission systems 有权
标题翻译：直流输电系统故障电流限制
公开(公告)号：US08830708B2
公开(公告)日：2014-09-09
申请号：US13395359
申请日：2009-09-11
申请人： Bertil Berggren , Staffan Norrga , Tomas U. Jonsson
发明人： Bertil Berggren , Staffan Norrga , Tomas U. Jonsson
IPC分类号： H02H7/26 , H02J3/36 , H02M7/483 , H02M1/32
CPC分类号： H02J3/36 , H02H7/268 , H02M1/32 , H02M2007/4835 , Y02E60/60
摘要： A method, voltage source converter and computer program product for limiting the current in a DC power transmission system are disclosed. The voltage source converter has an AC side and a DC side and a fault current path between these sides. It furthermore includes a control unit and at least one switching unit of a first type provided in the fault current path and that includes a primary switching element together with an anti-parallel secondary controllable rectifying element. Based on a fault being detected in the DC power system when the primary switching elements of the converter are blocked, the control unit changes the control of the controllable rectifying element from acting as a non-controllable rectifying to acting as a controllable rectifying element.
摘要翻译：公开了一种用于限制直流电力传输系统中的电流的方法，电压源转换器和计算机程序产品。电压源转换器具有交流侧和直流侧以及两侧之间的故障电流路径。此外，还包括设置在故障电流路径中的控制单元和至少一个第一类型的开关单元，并且包括主开关元件以及反并联次级可控整流元件。基于在转换器的主开关元件被阻塞时在直流电力系统中检测到的故障，控制单元改变可控整流元件的控制作为不可控整流作为可控整流元件。

3. 发明授权

US08614904B2 Voltage source converter with switching cell bypass arrangement 有权
标题翻译：具有开关元件旁路装置的电压源转换器
公开(公告)号：US08614904B2
公开(公告)日：2013-12-24
申请号：US12933357
申请日：2008-03-20
申请人： Staffan Norrga , Tomas U. Jonsson
发明人： Staffan Norrga , Tomas U. Jonsson
IPC分类号： H02M7/217 , H02M7/219
CPC分类号： H02M7/483 , B60L15/007 , H02M7/49 , H02M7/5388 , H02M2001/325 , H02M2007/4835 , Y02T10/645
摘要： A Voltage Source Converter having at least one phase leg connected to opposite poles of a direct voltage side of the converter and including a series connection of switching cells has an arrangement configured to apply a pressure to opposite ends of stacks of semiconductor assemblies for pressing the assemblies towards each other so as to obtain electric contact between semiconductor assemblies in the stack while ensuring that the semiconductor assemblies of a first path of each switching cell of the converter go into a permanently closed circuit state in case of a failure of the respective switching cell. A second path of each switching cell has a member configured to keep the second path including an energy storing capacitor non-conducting upon occurrence of the failure.
摘要翻译：具有连接到转换器的直流电压侧的相对极的至少一个相位支路并包括开关单元的串联连接的电压源转换器具有被配置为对半导体组件堆叠的相对端施加压力的装置，用于按压组件朝向彼此，以便在堆叠中的半导体组件之间获得电接触，同时确保在各个开关单元发生故障的情况下，转换器的每个开关单元的第一路径的半导体组件进入永久闭合电路状态。每个开关单元的第二路径具有构造成在发生故障时保持第二路径包括能量存储电容器不导通的构件。

4. 发明申请

US20120201059A1 FAULT CURRENT LIMITATION IN DC POWER TRANSMISSION SYSTEMS 有权
标题翻译：直流电力传输系统中的故障电流限制
公开(公告)号：US20120201059A1
公开(公告)日：2012-08-09
申请号：US13395359
申请日：2009-09-11
申请人： Bertil Berggren , Staffan Norrga , Tomas U. Jonsson
发明人： Bertil Berggren , Staffan Norrga , Tomas U. Jonsson
IPC分类号： H02H7/125
CPC分类号： H02J3/36 , H02H7/268 , H02M1/32 , H02M2007/4835 , Y02E60/60
摘要： A method, voltage source converter and computer program product for limiting the current in a DC power transmission system are disclosed. The voltage source converter has an AC side and a DC side and a fault current path between these sides. It furthermore includes a control unit and at least one switching unit of a first type provided in the fault current path and that includes a primary switching element together with an anti-parallel secondary controllable rectifying element. Based on a fault being detected in the DC power system when the primary switching elements of the converter are blocked, the control unit changes the control of the controllable rectifying element from acting as a non-controllable rectifying to acting as a controllable rectifying element.
摘要翻译：公开了一种用于限制直流电力传输系统中的电流的方法，电压源转换器和计算机程序产品。电压源转换器具有交流侧和直流侧以及两侧之间的故障电流路径。此外，还包括设置在故障电流路径中的控制单元和至少一个第一类型的开关单元，并且包括主开关元件以及反并联次级可控整流元件。基于在转换器的主开关元件被阻塞时在直流电力系统中检测到的故障，控制单元改变可控整流元件的控制作为不可控整流作为可控整流元件。

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