Control of a wind turbine generator
AssigneeVestas Wind Systems A/S
InventorKim B. Larsen
Life of this patent
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Abstract
A method for controlling a wind turbine generator is disclosed. The method comprises comparing an output power reference value and an actual output power value in a first control block with a first controller having a first control dynamics, comparing the output from the first control block with an actual generator shaft power value in a second control loop with a second controller having a second control dynamics, to determine a generator control signal, wherein the output power reference value is fed-forward and summed with the output of the first controller in the first control block. The disclosed method allows for fast reactions to changes in the output power reference value by the second controller regardless of the speed of the first controller.
Claims16
A method for controlling a wind turbine generator, comprising:
- comparing an output power reference value and an actual output power value in a first control block with a first controller having a first control dynamics, wherein the actual output power value is provided to a power grid;
- and
- comparing an output of the first control block with an actual generator shaft power value in a second control block with a second controller having a second control dynamics, to determine a generator control signal,
- wherein the output power reference value is fed-forward and summed with an output of the first controller to create the output of the first control block.
An apparatus for controlling a wind turbine generator, said apparatus comprising:
- a first control block comprising a first controller having a first control dynamics, said first control block being adapted to compare an output power reference value and an actual output power value which is provided to a power grid;
- and
- a second control block comprising a second controller having a second control dynamics, said second control block being adapted to determine a generator control signal by comparing an output of the first control block and an actual generator shaft power value,
- wherein the first control block further comprises a feed-forward of the output power reference value for summation with an output of the first controller to create the output of the first control block.
Dependencies are inferred from the claim text.