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.