Title :
Comparison of control strategies for DFIG under symmetrical grid voltage dips
Author :
Wenjie Chen ; Dehong Xu ; Min Chen ; Blaabjerg, Frede
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents a series of current control strategies for the DFIG under symmetrical grid voltage dips. The controllable range, the damping time constant of the stator natural flux and the torque fluctuations of six control strategies are analyzed and compared. The control strategies which have the largest controllable range, the smallest damping time constant of the stator flux and the smallest torque fluctuation are listed, respectively. The comparison is verified by simulations.
Keywords :
asynchronous generators; damping; electric current control; machine control; power grids; stators; torque control; voltage control; DFIG; current control strategy; damping time constant; doubly fed induction generator; stator natural flux; symmetrical grid voltage dip; torque fluctuation; Fluctuations; Rotors; Stator windings; Torque; Voltage control; Voltage fluctuations; DFIG; current control; voltage dips; wind turbines;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6699362
