Method and system for controlling operation of a wind turbine
First Claim
1. A method of controlling the operation of a wind turbine, the method comprising the steps of:
- determining an alarm level for at least one component of the wind turbine; and
in the case that an alarm level for at least one component exceeds a predefined level;
estimating an expected remaining lifetime for said component under the current operating conditions, andcontrolling operation of the wind turbine in order to adjust the expected remaining lifetime for said component to a desired expected remaining lifetime for said component,wherein the step of controlling operation of the wind turbine comprises the steps of;
estimating an expected wind speed at the site of the wind turbine during the estimated expected remaining lifetime of said component; and
if the estimated expected wind speed is below a predefined threshold value, controlling operation of the wind turbine to maintain an output power level of the wind turbine.
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Accused Products
Abstract
Methods and systems for controlling operation of a wind turbine. The method may comprise determining an alarm level for at least one component of the wind turbine. In the case that an alarm level for at least one component exceeds a predefined level, the method comprises estimating an expected remaining lifetime for the component under the current operating conditions, and controlling operation of the wind turbine in order to adjust the expected remaining lifetime for the component to a desired expected remaining lifetime for said component. Thereby, the expected remaining lifetime for the component can be prolonged until the next scheduled service event. Downtime of the wind turbine is considerably reduced, and unscheduled service events are avoided to the greatest possible extent. Mean time between inspections (MTBI) is also extended.
29 Citations
17 Claims
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1. A method of controlling the operation of a wind turbine, the method comprising the steps of:
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determining an alarm level for at least one component of the wind turbine; and in the case that an alarm level for at least one component exceeds a predefined level; estimating an expected remaining lifetime for said component under the current operating conditions, and controlling operation of the wind turbine in order to adjust the expected remaining lifetime for said component to a desired expected remaining lifetime for said component, wherein the step of controlling operation of the wind turbine comprises the steps of; estimating an expected wind speed at the site of the wind turbine during the estimated expected remaining lifetime of said component; and if the estimated expected wind speed is below a predefined threshold value, controlling operation of the wind turbine to maintain an output power level of the wind turbine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling the operation of a wind turbine, the method comprising the steps of:
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determining an alarm level for at least one component of the wind turbine; and in the case that an alarm level for at least one component exceeds a predefined level; estimating an expected remaining lifetime for said component under the current operating conditions, and controlling operation of the wind turbine in order to adjust the expected remaining lifetime for said component to a desired expected remaining lifetime for said component, wherein the step of controlling operation of the wind turbine comprises the steps of; estimating an expected wind speed at the site of the wind turbine during the estimated expected remaining lifetime of said component; and if the estimated expected wind speed is above the predefined threshold value, controlling operation of the wind turbine to reduce the output power level of the wind turbine. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification