CPC F03D 17/00 (2016.05) [F03D 7/0204 (2013.01); F05B 2260/80 (2013.01); F05B 2270/329 (2013.01); F05B 2270/821 (2013.01)] | 15 Claims |
1. A method for determining a yaw heading (θheading) of a wind turbine, the wind turbine having a tower and a nacelle that includes a machine head and rotor at a top thereof, the method comprising:
configuring a single rover receiver of a global navigation satellite system (GNSS) at a fixed position relative to the nacelle spaced from a centerline axis of the nacelle;
determining a GNSS geographic location (“geo-location”) of a tower top pivot point (TPP) of the wind turbine;
determining an angular offset of the rover receiver (βrover) relative to the centerline axis of the nacelle based on a relationship of βrover=sin−1 (x/r), wherein (r) is a distance between the rover receiver and the TPP and (x) is a predetermined fixed distance of the rover receiver to the centerline axis of the nacelle;
based on the GNSS geo-location of the TPP and a GNSS geo-location of the rover receiver, determining an angular vector () relative to North of a line between the TPP and the rover receiver; and
computing the yaw heading (θheading) from a difference between the angular vector () and the angular offset (βrover) of the rover receiver based on the relationship:
θheading=(angular vector())−(βrover).
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