公开(公告)号：US09716425B2

公开(公告)日：2017-07-25

申请号：US14653721

申请日：2013-01-21

申请人： ABB TECHNOLOGY LTD

发明人： Alireza Nami ,  Liwei Wang

IPC分类号： H02M7/483 ,  H02M1/32 ,  H02M7/219 ,  H02M7/06 ,  H02M7/797 ,  H02M7/5388

CPC分类号： H02M1/32 ,  H02M7/06 ,  H02M7/219 ,  H02M7/483 ,  H02M7/5388 ,  H02M7/797 ,  H02M2007/4835

摘要： A multilevel converter converting between AC and DC includes a phase arm with a number of cells between a DC pole and an AC terminal, the cells include at least one hybrid full bridge cell including a first cell connection terminal for coupling to the DC pole, a second cell connection terminal for coupling to the AC terminal, an energy storage element having a positive and a negative end, a first group of series connected semiconducting units in parallel with the energy storage element, where a junction between these forms one cell connection terminal, and a second group of series connected semiconducting units in parallel with the energy storage element and including a third semiconducting unit and a fourth semiconducting unit consisting of a number of unidirectional conducting elements including at least one unidirectional conducting element, where a junction between these forms a further cell connection terminal.