METHOD OF AUTOMATICALLY CALCULATING POWER CURVE LIMIT FOR POWER CURVE MONITORING OF WIND TURBINE

摘要

The present invention provides a method of automatically calculating a power curve limit for the power curve monitoring of a wind turbine that may set an optimal power curve limit by automatically calculating a power curve limit for power curve monitoring even if wind speed-power data measured at a wind turbine includes a large amount of abnormal data in addition to normal data. To this end, the present invention includes: classifying, by an input data classifying unit, the input data on wind power generation through a variable speed bin; calculating, by a power calculating unit, a power average value and standard deviation for each bin for the classified input data; estimating, by a power curve estimating unit, a power curve for the calculated power average value for each bin; searching for, by a limit searching unit, an accurate power curve limit while moving the estimated power curve; and setting, by a data extracting unit, the data included in the accurate power curve limit as new input data.

主权项

1. A method of automatically calculating power curve limits for power curve monitoring of a wind turbine, comprising:
classifying input data of wind power generation through variable speed bins by an input data classification unit; calculating a mean value and a standard deviation of power for each bin for the classified input data by a power calculation unit; estimating a power curve for the calculated mean value of power for each bin by a power curve estimation unit; searching for accurate power curve limits while shifting the estimated power curve by a limit search unit; and setting the input data between the accurate power curve limits as new input data by a data extraction unit.