Wind farm and method for controlling the same

Details Wind farm and method for controlling the same Wind farm and method for controlling the same

2006-05-12

2010-10-05

Fureman, Jared J (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Plural generators

C307S057000

Reexamination Certificate

active

07808126

ABSTRACT:
A method for controlling dynamic power factor or the reactive power of a wind farm is provided. The wind farm comprises a number of wind turbines connected to a utility grid driven with a requested power factor or a requested reactive power. The wind turbine output voltage is controlled to a specific voltage set point. In the method, the wind farm power factor is measured and compared with the power factor requested for the utility grid, or the wind farm reactive power is measured and compared with the reactive power requested for the utility grid, respectively; the ratio of the wind farm voltage to the utility grid voltage is adjusted, and the output voltage of the individual wind turbines is regulated to correspond to the specific voltage set point; the steps are repeated until the power factor of the wind farm electricity corresponds to the requested reactive power.

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L. Holdsworth et al, “Direct solution method for initializing doubly-fed induction wind turbines in power system dynamic models”, IEE Proc.-Gener. Transm.Distrib., vol. 150, No. 3, May 2003; p. 334-342.

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