Wobben Properties Gmbh

Matthias Bartsch

Alfred Beekmann

Christian Strafiel

Marcel Kruse

A method for feeding electrical power into an electrical, three-phase supply network by means of an inverter device, wherein the electrical supply network has a three-phase line voltage with a first, second and third line voltage phase, comprising the steps: feeding the electrical power during normal operation if a fault-free operation has been identified for the electrical supply network, wherein during normal operation a positive sequence voltage and optionally a negative sequence voltage is recorded from the line voltage and a reactive current is specified at least depending on the positive sequence voltage and optionally depending on the negative sequence voltage, and changing to a fault operation if a voltage change in the line voltage meets a predetermined fault criterion, in particular if the voltage change exceeds a predeterminable minimum amount of change or a minimum amount of change gradient, wherein during the fault operation, at least directly after the change, the reactive current is specified depending on a space vector voltage.

Method for feeding electrical power into an electrical supply network

A method for feeding electrical power into an electrical supply network by means of at least one wind farm respectively connected to the supply network via a network connection point, wherein the supply network is to be operated at a network frequency, and each wind farm has a plurality of wind power installations, comprising the steps of determining whether the electrical supply network is operating, starting the at least one wind farm in a black-start mode for the purpose of producing electrical power for feeding into the supply network if the supply network is not operating, operating the at least one wind farm in black-start operation in which electrical power is fed into the supply network and the supply network is operated thereby, wherein the network frequency is specified by the feeding-in of the electrical power in the black-start mode and/or during black-start operation.

Method for feeding electrical power into an electricity supply network with a wind park and wind park with black start

A method for feeding electric power into an electric supply network by means of a wind park comprising several wind turbines. The method comprises the steps of

Growing community of inventors

Bremen, Germany

Matthias Bartsch