摘要 |
The arrangement has a d.c. circuit with 2 capacitors in series, 2 main and a subsidiary connection and a sub-rectifier system per phase, each with 3 switch groups. Each group has 2 power switches in series. Each first group is connected to the first main and subsidiary connections, each second group is connected to the second main and subsidiary connections. Each third group is connected to the first and second groups of its sub-inverter system. The circuit has a d.c. circuit (1) with two capacitors in series with first and second main connections (2,3) and a subsidiary connection (4) and a sub-rectifier system per phase, each with three switch groups. Each switch group is formed by two power semiconducting switches in series. Each first group (6) is connected to the first main connection and the subsidiary connection, each second group (7) is connected to the second main connection and the subsidiary connection. Each third group (8) is connected to the first and second groups of the same sub-inverter system. |