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An effective rotor current controller for unbalanced stand-alone DFIG systems in the rotor reference frame

Lookup NU author(s): Dr Van-Tung Phan

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Abstract

This paper presents an effective rotor current controller for variable-speed stand-alone doubly fed induction generator (DFIG) systems feeding an unbalanced three-phase load. The proposed current controller is developed based on proportional plus two resonant regulators, which are tuned at the positive and negative slip frequencies and implemented in the rotor reference frame without decomposing the positive and negative sequence components of the measured rotor current. In addition, the behavior of the proposed controller is examined in terms of control performance and stability with respect to rotor speed variations, i.e., slip frequency variations. Simulations and experimental results are shown to validate the robustness and effectiveness of the proposed control method.

Publication metadata

Author(s): Phan Van-Tung, Lee Hong-Hee, Chun Tae-Won

Publication type: Article

Publication status: Published

Journal: Journal of Power Electronics

Year: 2010

Volume: 10

Issue: 6

Pages: 724-732

Print publication date: 01/11/2010

ISSN (print): 1598-2092

ISSN (electronic): 2093-4718

Publisher: Korean Institute of Power Electronics

URL: http://dx.doi.org/10.6113/JPE.2010.10.6.724

DOI: 10.6113/JPE.2010.10.6.724

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