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 1673-565XFull text not available in this repository. (Request a copy from the Strathclyde author)
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.
|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|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||04 Jun 2010 09:18|
|Last modified:||27 Apr 2016 14:57|