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http://dx.doi.org/10.3795/KSME-A.2012.36.5.487

Analysis of Mechanical Loads During Yawing  

Nam, Yoon-Su (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
Choi, Han-Soon (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.5, 2012 , pp. 487-495 More about this Journal
Abstract
The yaw control, a major part of the wind turbine, is closely related to the efficiency of electric power production and the mechanical load. The yaw error, which results from the nacelle not being appropriately aligned in the wind direction, not only decreases the power output but also reduces the lifetime of the wind turbine as a result of large fatigue loads. However, the yawing rate cannot be increased indefinitely because of constraints on mechanical loads. This paper investigates the characteristics of an active yaw control system, the basic principle of the system, and mechanical loads around the yaw axis during yawing.
Keywords
Wind Turbine; Yaw Control; Bending Moment in Out-of-Plane Direction; Aeroelastic Model; Gyroscopic Moment;
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