公开(公告)号：US10581357B2

公开(公告)日：2020-03-03

申请号：US15977286

申请日：2018-05-11

申请人： ABB Schweiz AG

发明人： Chenjie Lin ,  Ghanshyam Shrestha ,  Mehanathan Pathmanathan ,  Pedro Rodriguez ,  Pasi Paloheimo ,  Tuomas Janhunen ,  Susanna Bäckström-Andersson ,  Eino Silander

IPC分类号： H02P9/30 ,  H02P9/02 ,  H02K19/26 ,  H02P25/03 ,  H02P9/10

摘要： Unique systems, methods, techniques and apparatuses of a rotating DC power supply are disclosed. One exemplary embodiment includes a first and second DC bus rail, a first and second leg, and a discharge resistor. The first leg includes a first semiconductor device and a second semiconductor device coupled in series at a first midpoint connection, the first semiconductor device being coupled to a first point on the first DC bus rail and the first midpoint connection being coupled to a field winding. The second leg includes a third semiconductor device and a fourth semiconductor device coupled in series at a second midpoint connection, the third semiconductor device being coupled to a second point on the first DC bus rail and the second midpoint connection being coupled to the field winding. The discharge resistor is operatively coupled to the first DC bus rail between the first point and the second point.