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In this paper, a new wind turbine simulator using a squirrel cage induction motor for both steady state and transient conditions. The turbine static characteristics are modeled using the relation between the turbine power versus the wind speed and the blade pitch angle. The turbine performance is subjected to a real wind speed pattern by modeling the wind speed as a sum of harmonics with wide range frequencies. The turbine model includes the effect of the tower shadow and wind shear. A pitch angle controller is designed and used to protect the coupled generator by limiting the turbine output power to the rated value. High inertia blades are also simulated instead of the low actual turbine inertia. Experimental results are presented to verify the wind turbine simulator performance.
Date of Conference: 5-8 Dec. 2011