公开(公告)号：US20200161987A1

公开(公告)日：2020-05-21

申请号：US16627887

申请日：2017-07-05

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： HERBERT GAMBACH ,  VOLKER HUSSENNETHER ,  ROLAND SCHUSTER ,  THOMAS WESTERWELLER ,  ADNAN CHAUDHRY

IPC分类号： H02M7/483 ,  H02M7/521 ,  H02M5/45 ,  H02M1/32

摘要： A multilevel power converter has at least one phase module with a plurality of modules (1_1 . . . 1_n; 2_1 . . . 2_n) connected between first and second DC voltage connections. The phase module has a first phase module branch connected to the first DC voltage connection, and a second phase module branch connected to the second DC voltage connection. Each of the modules has at least two electronic switching elements and an electric energy storage unit. A third phase module branch connects the first phase module branch to the second phase module branch. A switching device connects an AC voltage connection of the multilevel power converter to a first connection node between the first phase module branch and the third phase module branch in a first switch position and connects the AC voltage connection to a second connection node between the third phase module branch and the second phase module branch in a second switch position.