Determining damage and remaining useful life of rotating machinery including drive trains, gearboxes, and generators
First Claim
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1. A method for assessing for refurbishing a failed wind or water turbine component comprising the steps of:
- predicting the remaining useful life of the component according to the steps of;
obtaining a damage limit value for the rotating machine or component thereof;
determining accumulated damage for the rotating machine or component thereof according to the steps of;
providing data relating to one or more operating conditions;
providing one or more damage coefficients relating to the one or more operating conditions; and
calculating the damage as a function of the one or more operating conditions and the one or more damage coefficients; and
determining the remaining useful life from the damage limit and the accumulated damage;
setting a refurbishment limit;
investigating for actual damage to the component when the residual useful life is greater than the refurbishment limit;
the component being repairable, refurbishing the component.
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Abstract
A method for predicting remaining useful life of a wind or water turbine or component determines in step (116) an accumulated damage for the turbine or component and compares this in step (118) to preset damage limit obtained in step (114). This provides a simple approach to estimating remaining useful life, giving the turbine operator an indication of the condition of turbines or farms under management.
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Citations
9 Claims
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1. A method for assessing for refurbishing a failed wind or water turbine component comprising the steps of:
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predicting the remaining useful life of the component according to the steps of; obtaining a damage limit value for the rotating machine or component thereof; determining accumulated damage for the rotating machine or component thereof according to the steps of; providing data relating to one or more operating conditions; providing one or more damage coefficients relating to the one or more operating conditions; and calculating the damage as a function of the one or more operating conditions and the one or more damage coefficients; and determining the remaining useful life from the damage limit and the accumulated damage; setting a refurbishment limit; investigating for actual damage to the component when the residual useful life is greater than the refurbishment limit; the component being repairable, refurbishing the component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification