An energy supply network has a bus line with a line impedance for energy distribution. The energy supply network also includes a number of power-electronic converters having a respective commutation capacitor wherein the storage capacity thereof is selected in such a way that a controlling of the associated power-electronic converter is guaranteed during operation of the energy supply network and an excess of voltage is managed during a commutation. At least one energy accumulator is provided, which can be connected selectively to the bus line by controlling a switch device via a computer unit, wherein the storage capacity of the energy accumulator is substantially greater than the storage capacity of a respective commutation capacitor.