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Sensorless Control of the Doubly-Fed Induction Generator for Wind Energy Generations Using a Speed-Adaptive Full-Order Flux Observer

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2 Author(s)
Sheng Yang ; Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA ; Ajjarapu, V.

In this paper, a speed-adaptive full-order flux observer for sensorless vector control of doubly-fed induction generators (DFIGs) is proposed. The observer is a simulation of the full-order electrical model of DFIGs with feedback of the rotor current estimation error and a speed adaptation loop. The observer gains are selected based on a stability analysis and validated by the linearized closed-loop observer model. Simulation results demonstrate desired steady-state and dynamic performance of this sensorless control approach for DFIG-based variable speed wind turbines.

Published in:

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Date of Conference:

15-19 Feb. 2009