System and method for utility and wind turbine control
AssigneeGeneral Electric Company
InventorsRobert William Delmerico, Nicholas Wright Miller
Life of this patent
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Abstract
An exemplary embodiment includes a wind turbine system. The wind turbine system includes a wind turbine generator operable to supply wind turbine power to a utility system. A converter is coupled to the wind turbine generator and the utility system. The wind turbine system also includes a controller comprising an internal reference frame of the wind turbine generator, coupled to the converter, and configured for modulating flow of power through the converter in response to frequency disturbances or power swings of the utility system relative to the internal reference frame.
Claims14
A wind turbine system comprising:
- a wind turbine generator operable to supply wind turbine power to a utility system;
- a converter coupled to the wind turbine generator and the utility system;
- and
- a controller comprising an internal reference frame of the wind turbine generators, wherein the internal reference frame is configured to provide a variable reference frequency output siginal (ω), coupled to the converter, and configured for modulating flow of power through the converter in response to frequency disturbances or power swings of the utility system relative to the internal reference frame, wherein modulating the flow of power comprises providing a supplemental input signal (ΔP) configured to increase or decrease power output of the wind turbine system.
A method for stabilizing frequency and power swings of a utility system, the method comprising:
- supplying power from a wind turbine generator to the utility system;
- and
- using an internal reference frame of the wind turbine generator for modulating flow of power from the wind turbine generator in response to frequency disturbances or power swings of the utility system relative to the internal reference frame.
- wherein the internal reference frame is configured to Provide a variable reference frequency output siginal (ω), and
- wherein modulating the flow of power comprises providing a supplemental input signal (ΔP) configured to increase or decrease power output of a wind turbine system.
The method of claim l0 further comprising changing blade pitch or turbine speed in response to the frequency disturbance or the power swing.
The method of claim l0 further comprising, while using the internal reference frame, limiting a relative angle, a relative frequency, a supplemental power or torque signal, or combinations thereof.
Dependencies are inferred from the claim text.