WIND POWER GENERATOR, WIND POWER GENERATION SYSTEM, AND GENERATION CONTROL METHOD OF WIND POWER GENERATOR

摘要

A wind power generator, a wind power generation system, and a generation control method of a wind power generator all enabling improvement of the generation performance and reduction of the fatigue load on the wind turbine. In a data storage unit (25), data sets of the generation output P in operation of the wind power generator, the inflow wind speed Ws estimated on the basis of the wind speed measured by an anemometer, and the wind direction difference between the wind direction Thetaw measured by an anemoscope and the orientation of the nacelle are sequentially stored. An analyzing unit (26) performs statistical analysis of the stored data to determine the distribution curve of the generation output versus the wind direction difference for each inflow wind speed. The wind direction difference at which the distribution curve takes on the peak is used as a correction value Thetad for the anemoscope. The correction value for the anemoscope for each inflow wind speed is stored in a wind direction correction table (27). An operation control unit (30) corrects the wind direction Vw measured by the anemoscope by using the correction value Thetad for the anemoscope for each inflow wind speed Ws and controls the generation by using the corrected wind direction as a control parameter. ® KIPO & WIPO 2009