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Title: Impedance modeling of DFIG-wind turbine system
Authors: Liao, X
Sun, H
Li, Z
Wong, SC 
Tian, L
Wang, M
Liu, X
Keywords: Doubly fed induction generator (DFIG)
Impedance modeling
Wind turbine
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Proceedings - IEEE International Symposium on Circuits and Systems, 2015, v. 2015-July, 7168616, p. 245-248 How to cite?
Abstract: The DFIG-wind turbine, can create the potential instability to the existent power grid, equivalently presenting itself as a random voltage source with its dynamic impedance, which has the implicit and varying electrical characteristics with the changeable rotor speed. Thus, it inevitably leads to the mutual interaction between DFIG-wind turbines themselves and dynamic custom loads. This paper studies the closed-form impedance analysis of a practical DFIG-wind turbine system. A small-signal model of the DFIG system in the dq-frame is developed with respect to discrete rotor speeds using the impedance-based approach. Moreover, a practical testing method is adopted to facilitate the verification of the impedance modeling.
Description: IEEE International Symposium on Circuits and Systems, ISCAS 2015, 24-27 May 2015
ISBN: 9781479983919
DOI: 10.1109/ISCAS.2015.7168616
Appears in Collections:Conference Paper

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