Patent ID: 9181925
Filing Date: 2015-11-10
Classification: F03D,F05B,G01L,Y02E,Y02P

Abstract:
1. Method for servicing a wind power plant having a machinery housing that can be rotated on the tower through an azimuth angle (α) and having a rotor that can be rotated on a machinery housing through a rotor angle (δ), comprising the steps of: i) determining for servicing purposes an azimuth angle by: adjusting a plurality of combinations of rotor angles (δ) and azimuth angles (α) by modifying the azimuth angle (α) for a plurality of locked rotor angles (δ) or by modifying the rotor angle (δ) for a plurality of locked azimuth angles (α); determining torques acting at the rotor subject to the wind field for the adjusted combinations of rotor angle (δ) and azimuth angle (α); ii) rotating the machinery housing into the azimuth angle for servicing purposes (α