DAMPING OSCILLATIONS USING ACTIVE FILTERS

Provided is an arrangement for controlling a converter of a power generation system, for example, a wind turbine, the converter being connected to a connection point to a utility grid, the arrangement including: a measurement section adapted to provide measurement values indicative of values of current and voltage at the connection point, a main converter controller adapted to receive the measurement values and to generate a main converter control signal based on the measurement values, an active filter system adapted to receive the measurement values and to generate an active filter control signal based on the measurement values, an addition element adapted to add the main converter control signal and the active filter control signal and to supply the sum signal as a control signal to the converter.