Power oscillation damping employing a full or partial conversion wind turbine

摘要

A wind turbine (8) for controlling power oscillations on a grid of a power system (28). The wind turbine (8) comprises rotor blades (12) for turning by the wind, an electric generator (20) rotatably coupled to the rotor blades (12), a power converter (24) responsive to electricity generated by the electric generator (20), the power converter (24) for converting the generated electricity to a frequency and voltage suitable for supply to the power grid (28), and the power converter for regulating voltage on the grid supplemented by modulating real power for damping the power oscillations.

主权项

1. A wind turbine for controlling power oscillations associated with groups of generators or generating plants interspersed on a grid of a power system, the power oscillations created following power system disturbances, the wind turbine comprising:
rotor blades for turning by the wind; an electric generator coupled to the rotor blades; and a power converter responsive to electricity generated by the electric generator, the power converter comprising a full conversion power converter for converting the generated electricity to a frequency and voltage for supply to the power grid, the full conversion power converter for regulating grid voltage to damp the power oscillations associated with said groups of generators or generating plants interspersed on the grid, when the wind turbine is on-line irrespective of whether or not is producing real power, the regulating of the grid voltage to damp the power oscillations being performed by the full conversion power converter by way of voltage regulating, when the wind turbine is producing real power, the regulating of the grid voltage to damp the power oscillations being performed by the full, conversion power converter by way of real power modulating with or without voltage regulating.