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Dynamic modeling and direct power control of wind turbine driven DFIG under unbalanced network voltage conditions

Hu, J.B. and He, Y.K. and Xu, L. (2008) Dynamic modeling and direct power control of wind turbine driven DFIG under unbalanced network voltage conditions. Journal of Zhejiang University. Science A, 9 (12). pp. 1731-1740. ISSN 1673-565X

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Abstract

This paper proposes an analysis and a direct power control (DPC) design of a wind turbine driven doubly-fed induction generator (DFIG) under unbalanced network voltage conditions. A DFIG model described in the positive and negative synchronous reference frames is presented. Variations of the stator output active and reactive powers are fully deduced in the presence of negative sequence supply voltage and rotor flux. An enhanced DPC scheme is proposed to eliminate stator active power oscillation during network unbalance. The proposed control scheme removes rotor current regulators and the decomposition processing of positive and negative sequence rotor currents. Simulation results using PSCAD/EMTDC are presented on a 2-MW DFIG wind power generation system to validate the feasibility of the proposed control scheme under balanced and unbalanced network conditions.

Item type: Article
ID code: 19393
Keywords: doubly-fed induction generator (DFIG), wind turbine, direct power control (DPC), stator voltage oriented (SVO), Unbalanced network, TM315, TM614, Electrical engineering. Electronics Nuclear engineering, Engineering(all)
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 04 Jun 2010 10:18
    Last modified: 05 Sep 2014 02:49
    URI: http://strathprints.strath.ac.uk/id/eprint/19393

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