Method for operating a wind turbine
AssigneeWobben Properties GmbH
InventorsSönke ENGELKEN, Nikolay MIHOV, Angelo MENDONCA
Life of this patent
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Abstract
A method for operating a wind turbine (WEA), which has a generator for supplying electric power to an electric supply grid, is provided. After being operated in a first operating state with a first power output and a first rotational speed, the wind turbine is set to a second operating state with a second power output and a second rotational speed. In order to set the wind turbine to the second operating state, an aerodynamic power output which is available for supply is determined, a target rotational speed is determined from the available output, and a target output to be set for the generator is specified from the target rotational speed.
Claims17
A method for operating a wind power installation, comprising:
- feeding, by a generator, electrical power into an electrical supply network with a first operating state with a first power output and a first rotational speed, and
- controlling a change to a second operating state with a second power output and a second rotational speed, controlling change to the second operating state including:
- determining an aerodynamic available power for feeding,
- determining a setpoint rotational speed using the available power,
- determining a setpoint power using the setpoint rotational speed, and
- using the setpoint power to adjust the generator.
A control unit for determining an available power of a wind power installation, comprising a generator, wherein the control unit observes a rotational speed of the generator and a mechanical torque of the generator as state variables.
A wind power installation comprising:
- a generator for feeding electrical power into an electrical supply network, wherein the wind power installation is configured to operate in, a first operating state with a first power output and a first rotational speed, and after the first operating state, the wind power installation is controlled to transition into a second operating state with a second power output and a second rotational speed;
- and
- a control unit for determining an available power of the wind power installation based on an observed rotational speed of the generator and a mechanical torque of the generator.
(canceled)
Dependencies are inferred from the claim text.