| 摘要 |
A submodule charges or discharges an energy store and contains a capacitor unit and a power semiconductor circuit having power semiconductors that can be switched on and off. The capacitor unit and the power semiconductor circuit are connected to each other such that, after actuating the power semiconductors, the voltage released at the capacitor unit or a zero voltage can be produced at output terminals of the submodule. In order to provide a submodule allowing individual adaptation of the charging operation to the requirements of the energy store which, is cost-effective, the energy store is connected to the submodule via a DC-DC regulator. The regulator is connected to the capacitor unit and is configured to convert a capacitor voltage into a charge voltage that is required for charging the energy store, and to convert a discharge voltage released at the energy store during discharge into the capacitor voltage. |
