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Five-leg converter topology for wind energy conversion system with doubly fed induction generator.

Shahbazi, M. and Poure, P. and Saadate, S. and Zolghadri, M.R. (2011) 'Five-leg converter topology for wind energy conversion system with doubly fed induction generator.', Renewable energy., 36 (11). pp. 3187-3194.


In this paper, application of a five-leg converter in Doubly Fed Induction Generator (DFIG) for Wind Energy Conversion Systems (WECS) is investigated. The five-leg structure and its PWM control are studied and performances are compared with the classical six-leg topology. The main drawback of five-leg converter with respect to the six-leg back-to-back converter is the need to increase the dc-link voltage for the same operation point, i.e. the same powers in case of WECS. So, different methods for the reduction of the required dc-link voltage in the five-leg case are studied. The five-leg converter is used to replace the conventional six-leg one, with the same ability. For the performance evaluation of this structure and its fully digital controller in a more realistic and experimental manner, Hardware in the Loop experiments is carried out. It is shown that efficient control of active and reactive powers and dc-link voltage is performed. Hardware in the Loop results demonstrate the high performance of the proposed fully digital control which is implemented on an Altera FPGA target.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Publisher statement:NOTICE: this is the author’s version of a work that was accepted for publication in Renewable Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Renewable Energy, 36, November 2011, 10.1016/j.renene.2011.03.014.
Date accepted:10 March 2011
Date deposited:27 April 2016
Date of first online publication:November 2011
Date first made open access:No date available

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