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On the dynamics of the pitch control loop in horizontal-axis large wind turbines

DSpace at IIT Bombay

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Title On the dynamics of the pitch control loop in horizontal-axis large wind turbines
 
Creator SURYANARAYANAN, S
DIXIT, A
 
Description Most commercial large wind turbines use blade pitch action to mitigate structural loads in high wind velocity conditions. In this paper, we study the linearized dynamics of the map from blade pitch to tower top fore-aft deflection in horizontal-axis wind turbines. We show that the mass and stiffness distribution of the blades at certain operating conditions determine the presence (or absence) of a right half-plane zero in the transfer function of interest. We conclude that blade design can impose constraints on the achievable tower fore-aft. oscillation mitigation through collective blade pitch control. Consequences of this result to wind turbine design are discussed.
 
Publisher IEEE
 
Date 2011-10-24T09:25:00Z
2011-12-15T09:11:34Z
2011-10-24T09:25:00Z
2011-12-15T09:11:34Z
2005
 
Type Proceedings Paper
 
Identifier ACC: Proceedings of the 2005 American Control Conference, Vols 1-7,686-690
0-7803-9098-9
0743-1619
http://dx.doi.org/10.1109/ACC.2005.1470037
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15376
http://hdl.handle.net/100/2145
 
Source American Control Conference 2005 (ACC),Portland, OR,JUN 08-10, 2005
 
Language English