公开(公告)号：US09461557B2

公开(公告)日：2016-10-04

申请号：US14763140

申请日：2013-03-22

Applicant: ABB AB

Inventor： Kalle Ilves

IPC: H02M7/483 ,  H02M1/12 ,  H02M7/06 ,  H02J3/36

CPC classification number: H02M7/06 ,  H02J3/36 ,  H02M1/12 ,  H02M7/483 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A multilevel converter cell includes a first section with a first group of series connected switching units in parallel with a first energy storage element, where a junction between a first and second switching units of the first group of series connected switching units forms one cell connection terminal, a second section with a second group of series connected switching units in parallel with a second energy storage element, where a junction between a third and fourth switching units of the second group of series connected switching units forms another cell connection terminal, and an interconnecting section with a third group of series-connected switching units comprising a fifth, sixth and seventh switching unit, with the fifth and sixth switching units connected in parallel with the first energy storage element and the sixth and seventh switching units connected in parallel with the second energy storage element.

Abstract translation: 多电平转换器单元包括第一部分，其具有与第一能量存储元件并联的第一组串联连接的开关单元，其中第一组串联连接的开关单元的第一和第二开关单元之间的接点形成一个单元连接端子 ，第二部分，具有与第二能量存储元件并联的第二组串联连接的开关单元，其中第二组串联连接的开关单元的第三和第四开关单元之间的连接形成另一个单元连接端子，以及互连 该第三组串联连接开关单元包括第五，第六和第七开关单元，第五和第六开关单元与第一储能元件并联连接，第六和第七开关单元与第二开关单元并联连接 储能元件