Title :
Comparison of control strategies for Doubly fed induction generator under recurring grid faults
Author :
Wenjie Chen ; Blaabjerg, Frede ; Nan Zhu ; Min Chen ; Dehong Xu
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
The new grid codes demand the wind turbine systems to ride through recurring grid faults. Many control strategies have been proposed for the Doubly Fed Induction Generator under single grid fault, but their performance under recurring grid faults have not been studied yet. In this paper, five different control strategies for DFIG to ride through single grid faults are presented, and their performance under recurring grid faults are analyzed. The controllable range, stator time constant and torque fluctuations of the DFIG with different control strategies are compared. The results are verified by simulations and experiments.
Keywords :
asynchronous generators; machine control; wind turbines; control strategies; controllable range; doubly fed induction generator; recurring grid faults; single grid fault; stator time constant; torque fluctuations; wind turbine systems; Circuit faults; Rotors; Stator windings; Torque; Voltage control; Voltage fluctuations;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803339
