Wind power plant having a plurality of wind turbine generators and a power plant controller
AssigneeVestas Wind Systmens A/S
InventorsSteve Jessen, Søren Kappelgaard, Jacob Barsøe Kjærgaard, Kouroush Nayebi, Mads Rajczyk Skjelmose, Mu Wei
Life of this patent
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Abstract
A wind power plant has a plurality of wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators. Each wind turbine generator has a controller arranged to control an active power output in its respective wind turbine generator according to an active power set point received from the wind power plant controller. A change in the active power reference changes the active power set point for each wind turbine generator by a weighting factor.
Claims15
A wind power plant, comprising:
- a plurality of wind turbine generators;
- and
- a power plant controller arranged to communicate with the plurality of wind turbines generators;
- wherein
- each wind turbine generator in the plurality of wind turbine generators being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller;
- the wind power plant supplies power to a utility grid in accordance with an active power reference;
- such that upon a change in the active power reference the active power set point for each wind turbine generator is changed by a weighting factor;
- wherein the weighting factor for an increase of the active power reference comprises a coefficient based on an available active power of each wind turbine generator relative to an available active power of the wind power plant, and
- wherein the weighting factor for a decrease of the active power reference comprises a coefficient based on a produced active power of each wind turbine generator relative to an aggregated active power output of the wind power plant.
A method for operating a wind power plant which supplies power to a utility grid in accordance with an active power reference, the wind power plant comprising a plurality of wind turbine generators and a power plant controller arranged to communicate with a wind turbine controller of each of the plurality of wind turbine generators, wherein each wind turbine generator outputs active power in accordance with an active power set point received from the power plant controller, the method comprises the steps of:
- receiving a change in the active power reference,
- changing an active power set point of each wind turbine generator dependent on a weighting factor, wherein
- the weighting factor for an increase of the active power reference comprises a coefficient based on an available active power of each wind turbine generator relative to an available active power of the wind power plant, and
- the weighting factor for a decrease of the active power reference comprises a coefficient based on a produced active power of each wind turbine generator relative to an aggregated active power output of the wind power plant,
- dispatching the changed active power set point to the wind turbine controller of each of the plurality of wind turbine generators, and
- outputting, from each wind turbine generator, production power in accordance with the active power set point.
Dependencies are inferred from the claim text.