| 摘要 |
PURPOSE:To obtain a three-phase multiple inverter which can avoid the spread of a fault by cutting a discharge current flowing into a failed capacitor off securely and has a simple and economical circuit construction. CONSTITUTION:A plurality of unit three-phase inverters 1, a charging circuit 7 which is provided on their DC sides in common, a plurality of unit capacitor banks 16 and transformers 2 whose one side windings are connected to the respective AC sides of a plurality of the unit three-phase inverters 1 and whose other side windings are connected in series and linked with a three-phase power system are provided. The unit capacitor banks 16 are connected to the respective DC sides of the unit three-phase inverters 1 in parallel and protective fuses 18 are provided between the respective capacitor banks 16 which are connected in parallel. |
