公开(公告)号：US09531292B2

公开(公告)日：2016-12-27

申请号：US14897758

申请日：2013-06-14

Applicant: ABB Technology Ltd

Inventor： Kalpesh Hirjibhai Bhalodi ,  Lennart Harnefors ,  Sasitharan Subramanian ,  Tomas Jonsson

IPC: H02M7/219 ,  H02M7/217 ,  H02M7/483 ,  H02M1/00

CPC classification number: H02M7/217 ,  H02M7/219 ,  H02M7/483 ,  H02M2001/0074 ,  H02M2007/4835

Abstract: An arrangement for tapping power from a DC power line to an AC power line includes power transfer modules between two DC potentials, each including a first branch with a string of converter cells in parallel with a second branch including a capacitor and being connected to an AC phase. There is at least one control unit that controls the arrangement considering one or more of a) distributing appropriate AC and DC voltages in converter output voltages of all series connected modules, b) maintaining/setting cell capacitor voltages in specific range and allowing boost mode operation, c) performing possible balancing of the introduced capacitor and d) employing an alternate approach of using passive filters to mitigate low order harmonics.

Abstract translation: 用于从DC电力线路到AC电力线的电力抽出的装置包括两个DC电势之间的功率传递模块，每个DC电势包括具有一串转换器单元的第一分支与包括电容器的第二分支并联连接到AC 相。 至少有一个控制单元，其考虑以下一个或多个控制装置：a）在所有串联连接的模块的转换器输出电压中分配适当的AC和DC电压，b）保持/设置单元电容器电压在特定范围内并允许升压模式操作 ，c）执行引入的电容器的可能平衡，以及d）采用使用无源滤波器以减轻低阶谐波的替代方法。

公开(公告)号：US20150295507A1

公开(公告)日：2015-10-15

申请号：US14434646

申请日：2012-11-27

Applicant: ABB TECHNOLOGY LTD.

Inventor： Praveen Kumar Barupati ,  Tomas Jonsson ,  Sasitharan Subramanian

IPC: H02M5/443

CPC classification number: H02M5/443 ,  H02M7/487 ,  H02M2007/4811 ,  H02M2007/4835

Abstract: A voltage source converter includes a number of valves, the valves including switching elements with anti-parallel diodes provided in a bridge for switching between two states. The bridge is provided in at least one phase leg that stretches between two direct current poles and has at least one midpoint, which is connected to an alternating current terminal. The switching element of at least one valve is a thyristor. The converter further includes a commutation cell associated with the valve, where the commutation cell is controllable to reverse-bias the valve if it is to stop conducting current.

Abstract translation: 电压源转换器包括多个阀，所述阀包括设置在用于在两个状态之间切换的桥的反并联二极管的开关元件。 该桥被提供在至少一个相位支路中，其延伸在两个直流电极之间并且具有连接到交流端子的至少一个中点。 至少一个阀的开关元件是晶闸管。 转换器还包括与阀相关联的换向单元，其中如果要停止传导电流，换向单元可以控制以对阀进行反向偏置。

公开(公告)号：US09762136B2

公开(公告)日：2017-09-12

申请号：US14434646

申请日：2012-11-27

Applicant: ABB Technology Ltd

Inventor： Praveen Kumar Barupati ,  Tomas Jonsson ,  Sasitharan Subramanian

IPC: H02M7/487 ,  H02M5/443 ,  H02M7/48 ,  H02M7/483

CPC classification number: H02M5/443 ,  H02M7/487 ,  H02M2007/4811 ,  H02M2007/4835

Abstract: A voltage source converter includes a number of valves, the valves including switching elements with anti-parallel diodes provided in a bridge for switching between two states. The bridge is provided in at least one phase leg that stretches between two direct current poles and has at least one midpoint, which is connected to an alternating current terminal. The switching element of at least one valve is a thyristor. The converter further includes a commutation cell associated with the valve, where the commutation cell is controllable to reverse-bias the valve if it is to stop conducting current.