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AssigneeVestas Wind Systems A/S
InventorsBo Sun, Sönke Engelken, Torsten Lund, Germán Claudio Tarnowski
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A method for controlling a power output of a grid forming wind turbine (1) in order to dampen power oscillations between a power grid (13) to which the wind turbine (1) is connected and the wind turbine (1) is disclosed. A damping power reference, PD, depending on a grid frequency of the power grid (13) and/or on a virtual rotor speed is calculated, with the purpose of dampening oscillations in the power output of the grid side converter (11). A power output of the grid side converter (11) is controlled, in accordance with a grid side power reference, Pref, and taking the damping power reference, PD, into account. A feedforward power reference for the machine side converter (10) is generated, the feedforward power reference including the damping power reference, PD, and an inertia power reference, PI, proportional to the time derivative of the grid frequency, and a power output of the machine side converter (10) is controlled at least partly based on the feedforward power reference.
A method for controlling a power output of a grid forming wind turbine in order to dampen power oscillations between a power grid to which the wind turbine is connected and the wind turbine, the wind turbine comprising a generator, a machine side converter connected to the generator, a grid side converter configured to supply power to the power grid, and a direct current (DC) link interconnecting the machine side converter and the grid side converter, the method comprising the steps of:
Dependencies are inferred from the claim text.