公开(公告)号：US20210152081A1

公开(公告)日：2021-05-20

申请号：US17254471

申请日：2018-06-19

申请人： Siemens Aktiengesellschaft

发明人： Mathias Anheuer ,  Daniel Boehme ,  Johannes Dallmeier ,  Christopher Eismann ,  Johann Holweg ,  Martin Kapelke ,  Michael Rudek ,  Torsten Stoltze ,  Marcus Wahle ,  Felix Daeumler ,  Johannes Griessl ,  Adrian Huber ,  Christian Schrammel ,  Johannes Weber

IPC分类号： H02M1/44 ,  H02M7/483

摘要： A potential equalization system for a modular multi-level converter. The converter has a plurality of converter modules and each of the modules has a direct current source. The potential equalization system includes pole contacts, which are each electrically connected to one pole of a direct current source, and at least one electrically conductive contacting element, which can be moved between a first end position in which the contacting element is electrically isolated from the converter modules and a second end position in which the contacting element contacts pole contacts of different direct current sources and can be put on ground potential.