An on-line wind alignment angle calibration
system of a
wind direction instrument, comprising a
wind direction instrument on-line calibration
system, a cabin, a
tower base, a monitoring room, and a
server; the
wind direction instrument on-line calibration
system comprises: a wind direction instrument (1), a housing upper cover (2), a transmission gear (3), a transmission shaft (4), an integrated control module (5), a housing (6), a base (7), a speed
reducer (8), a
drive motor (9), and an angle
encoder (10). Further provided is a calibration method based on the calibration system. The calibration method comprises: preprocessing
wind power data; performing
data processing by means of a
DBSCAN clustering
analysis method; performing
data processing by means of a
quartile algorithm, and determining a data interval; calculating a blade
tip speed ratio interval; extracting wind direction interval power; and calculating a wind alignment angle. The wind alignment angle deviation of a wind
turbine is obtained by means of calculation using an intelligent
algorithm, then a reference zero position of the wind direction instrument is adjusted by means of an intelligent precise hollow drive module, thus on-line adjustment and calibration of the reference zero position of the wind direction instrument can be achieved, and safety hazards due to manual operation, frequent adjustment and calibration, high-altitude operation, and the like are reduced. Also provided are a computer-readable storage medium and a
computer device for implementing the calibration method.