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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/34502

Title: Control of a small wind turbine in the high wind speed region
Author(s): Lumbreras Iglesias, Carlos
Guerrero Muñoz, Juan Manuel
García Fernández, Pablo
Briz del Blanco, Fernando
Díaz Reigosa, David
Issue date: Dec-2015
Publisher: IEEE
Publisher version: http://dx.doi.org/10.1109/TPEL.2015.2508674
Citation: IEEE Transactions on Power Electronics, 31(10), p. 6980-6991 (2016); doi: 10.1109/TPEL.2015.2508674
Abstract: This paper proposes a new soft-stalling control strategy for grid-connected small wind turbines operating in the high and very high wind speed conditions. The proposed method is driven by the the rated current/torque limits of the electrical machine and/or the power converter, instead of the rated power of the connected load, which is the limiting factor in other methods. The developed strategy additionally deals with the problem of system startup preventing the generator from accelerating to an uncontrollable operating point under a high wind speed situation. This is accomplished using only voltage and current sensors, not being required direct measurements of the wind speed nor the generator speed. The proposed method is applied to a small wind turbine system consisting of a permanent magnet synchronous generator and a simple power converter topology. Simulation and experimental results are included to demonstrate the performance of the proposed method. The paper also shows the limitations of using the stator back-emf to estimate the rotor speed in permanent magnet synchronous generators connected to a rectifier, due to significant d-axis current at high load
URI: http://hdl.handle.net/10651/34502
ISSN: 0885-8993
Appears in Collections:Artículos
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas

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