Wind turbine and method for operating a wind turbine
First Claim
1. A method for operating a wind turbine, the wind turbine comprising a wind rotor having at least one rotor blade and a generator connected to the wind rotor, wherein the generator is configured to be connected to a grid, the method comprising:
- increasing a rotational speed of the wind rotor by adjusting at least one wind turbine parameter; and
after enemy provided by the wind turbine exceeds a predetermined amount of energy to be fed into the grid, connecting the wind turbine to the grid while the rotational speed of the wind rotor is still increasing.
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Accused Products
Abstract
The present disclosure relates to a method for operating a wind turbine, the wind turbine comprising a wind rotor having at least one rotor blade and a generator connected to the wind rotor, wherein the generator is adapted to be connected to a grid, wherein the method comprises: adjusting at least one wind turbine parameter to increase the rotational speed of the wind rotor; increasing the rotational speed of the wind rotor; during increasing of the rotational speed of the wind rotor determining if the wind turbine would exceed a predetermined amount of energy to be fed into the grid at the actual wind rotor rotational speed; and during increasing of the rotational speed of the wind rotor connecting the wind turbine to the grid if determining that the wind turbine would exceed the predetermined amount of energy to be fed into the grid. Further, the present disclosure relates to a wind turbine comprising a wind rotor, wherein the wind rotor is mechanically connected to a generator for transmitting the rotational power of the wind rotor having at least one rotor blade to the rotor of the generator, wherein the output current of the generator is adapted to be selectively connected to a grid by a circuit breaker, the wind turbine further comprising a control device adapted to close or to trip the circuit breaker, wherein the control device is adapted to perform the method disclosed herein.
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Citations
20 Claims
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1. A method for operating a wind turbine, the wind turbine comprising a wind rotor having at least one rotor blade and a generator connected to the wind rotor, wherein the generator is configured to be connected to a grid, the method comprising:
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increasing a rotational speed of the wind rotor by adjusting at least one wind turbine parameter; and after enemy provided by the wind turbine exceeds a predetermined amount of energy to be fed into the grid, connecting the wind turbine to the grid while the rotational speed of the wind rotor is still increasing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for operating a wind turbine, the wind turbine comprising a wind rotor comprising at least one rotor blade and a generator connected to the wind rotor, wherein the generator is configured to be connected to a grid, the method comprising:
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operating the wind turbine in a run-up mode, wherein wind turbine parameters are adjusted to increase a rotational speed of the wind rotor, wherein during increasing of the rotational speed of the wind rotor, the rotational speed is not substantially constant for 5 seconds or more, and operating the wind turbine in a load operation mode. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A wind turbine comprising a wind rotor comprising at least one rotor blade, wherein the wind rotor is mechanically connected to a generator for transmitting a rotational power of the wind rotor to a rotor of the generator, wherein an output current of the generator is to be selectively connected to a grid by a circuit breaker, the wind turbine further comprising a control device configured to close or to trip the circuit breaker, wherein the control device is configured to:
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operate the wind turbine in a run-up mode, wherein the wind turbine parameters are adjusted to increase a rotational speed of the wind rotor, and wherein it is determined whether enemy provided by the wind turbine would exceed a predetermined amount of energy to be fed into the grid at an actual rotational speed of the wind rotor;
wherein during increasing of the rotational speed of the wind rotor, the rotational speed is not substantially constant for 5 seconds or more, andchange from the run-up mode into a load operation mode and connect the generator of the wind turbine to the grid after the energy provided by the wind turbine exceeds the predetermined amount of energy to be fed into the grid at the actual rotational speed of the wind rotor in the run-up mode. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification