Title :
Sliding mode control based robust observer of aerodynamic torque for variable-speed wind turbines
Author :
Ciccarelli, O. ; Corradini, M.L. ; Cucchieri, G. ; Ippoliti, G. ; Orlando, G.
Author_Institution :
Dipt. di Ing. dell´´Inf., Univ. Politec. delle Marche, Ancona, Italy
Abstract :
This paper focuses on a robust power generation control strategy for a variable speed wind energy conversion system. The proposed control strategy, by a robust observer of the aerodynamic torque, produces the required generator electromagnetic torque. The robust ultimate boundedness of the observation error and the tracking error, with arbitrary precision, is proved. The proposed sliding mode control approach has been validated on a 1.5-MW three-blade wind turbine using the National Renewable Energy Laboratory (NREL) wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Reported numerical simulations show that the proposed control solution is effective in terms of optimal power extraction and it is robust with respect to disturbances affecting the system.
Keywords :
aerodynamics; direct energy conversion; electric generators; fatigue; numerical analysis; observers; turbulence; variable structure systems; wind power; wind turbines; FAST; NREL wind turbine simulator; National Renewable Energy Laboratory; aerodynamic torque; fatigue aerodynamics structures and turbulence code; generator electromagnetic torque; numerical simulations; optimal power extraction; robust observer; robust power generation control strategy; sliding mode control approach; three-blade wind turbine; variable speed wind energy conversion system; variable-speed wind turbines; Generators;
Conference_Titel :
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-2419-9
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2012.6389192