Stability Analysis of an Adaptive Torque Controller for Variable Speed Wind Turbines: Preprint

Conference · Wed Dec 01 00:00:00 EST 2004

DOI:https://doi.org/10.1109/CDC.2004.1429392· OSTI ID:15011718

Johnson, K E; Pao, L Y; Balas, M J; Kulkarni, V; Fingersh, L J

Variable speed wind turbines are designed to follow wind speed variations in low winds in order to maximize aerodynamic efficiency. Unfortunately, uncertainty in the aerodynamic parameters may lead to sub-optimal power capture in variable speed turbines. Adaptive generator torque control is one method of eliminating this sub-optimality; however, before adaptive control can become widely used in the wind industry, it must be proven to be safe. This paper analyzes the stability of an adaptive torque control law and the gain adaptation law in use on the Controls Advanced Research Turbine (CART) at the National Renewable Energy Laboratory's National Wind Technology Center.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC36-99-GO10337
• OSTI ID: 15011718
• Report Number(s): NREL/CP-500-36756; TRN: US200507%%681
• Resource Relation: Conference: Prepared for the IEEE Conference on Decision and Control, Paradise Island (BS), 12/14/2004--12/17/2004; Other Information: PBD: 1 Dec 2004
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
AERODYNAMICS
EFFICIENCY
STABILITY
TORQUE
TURBINES
VELOCITY
WIND TURBINES
WIND ENERGY
WIND SPEED
AERODYNAMIC
CART
VARIABLE SPEED
WIND TURBINE
ADAPTIVE TORQUE CONTROLLER