Patent ID: 8694268
Filing Date: 2014-04-08
Classification: F03D,F05B,Y02E

Abstract:
1. A method of adjusting a curtailment strategy for a wind turbine, the method being applied to a wind turbine subject to a curtailment strategy for shutting down an operation of the wind turbine when a wind speed exceeds a condition setting value, and updating the condition setting value for the curtailment, the method comprising: a step of calculating using a computer a fatigue equivalent load for evaluating a fatigue damage of the wind turbine in a predetermined time period by using load data of the wind turbine; and a step of comparing using a computer the fatigue equivalent load with a reference load determined by an expected lifetime of the wind turbine, wherein when a difference between the fatigue equivalent load and the reference load is determined, using a computer, to exceed a predetermined threshold value and when the fatigue equivalent load is determined, using a computer, to be greater than the reference load, decreasing the condition setting value for the curtailment that is currently employed, and when the difference between the fatigue equivalent load and the reference load is determined, using a computer, to exceed a predetermined threshold value and when the fatigue equivalent load is determined, using a computer, to be smaller than the reference load, increasing the condition setting value for the curtailment that is currently employed.