Wind Power Plant Comprising Individual Pitch Devices
AssigneeREpower Systems AG
InventorThomas Kruger
Life of this patent
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Abstract
Provided herein is a wind energy installation including a generator for production of electrical energy, a rotor which drives the generator and has variable pitch rotor blades and a central control device, and individual pitch devices provided individually for the rotor blades. The individual pitch devices may include an adjustment drive, a communication link to the central control device and a regulator, the rotor blades being adjustable in order to slow down the wind energy installation to a shut-down position. The individual pitch devices may also include a disturbance situation detector which is designed to identify abnormal operating states and to move the rotor blades to a shut-down position. Also provided herein is the method of operating such a wind energy installation.
Claims29
A wind energy installation having comprising:
- a generator for production of electrical energy;
- a rotor which drives the generator and has variable pitch rotor blades and a central control device;
- and
- individual pitch devices provided individually for the rotor blades, the individual pitch devices comprising an adjustment drive, a communication link to the central control device and a regulator, the individual pitch devices being configured to adjust the rotor blades to slow down the wind energy installation to a shut-down position,
- wherein the individual pitch devices comprise a disturbance situation detector which is configured to identify abnormal operating states and is connected to a tripping device configured to move the respective rotor blade to a shut-down position.
A wind energy installation, comprising:
- a generator for production of electrical energy;
- a rotor which drives the generator and has variable pitch rotor blades and a central control device;
- and
- individual pitch devices provided individually for the rotor blades and comprising an adjustment drive, with the rotor blades being adjustable in order to slow down the wind energy installation to a shut-down position,
- the individual pitch devices being part of a hub monitoring system which is fixed to the rotor and comprises a measurement sensor and a communication link to the central control device,
- wherein the hub monitoring system comprises a disturbance situation detector which is designed to identify abnormal operating states and is connected to a tripping device which adjusts the rotor blades to a shut-down position by associated individual pitch device.
A method for operation of a wind energy installation comprising a generator for production of electrical energy, a rotor which drives the generator and has variable pitch rotor blades and a central control device, the pitch angle of the rotor blades being configured to be varied by individual pitch devices which comprise an adjustment drive, a communication link to the central control device and a regulator, and being configured to be moved to a shut-down position in order to slow down the wind energy installation,
- the method comprising:
- locally identifying an abnormal operating state by one or more of the individual pitch devices;
- and
- operating a tripping device such that the rotor blades are moved to the shut-down position.
Dependencies are inferred from the claim text.