Open AccessAdvanced control strategy of DFIG during symmetrical grid fault
Author(s) -
Tariq Riouch,
Cristian Nichita
Publication year - 2021
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijpeds.v12.i3.pp1422-1430
Subject(s) - overvoltage , control theory (sociology) , low voltage ride through , fault (geology) , voltage , induction generator , converters , controller (irrigation) , matlab , battery (electricity) , wind power , doubly fed electric machine , grid , engineering , power (physics) , ac power , computer science , control (management) , electrical engineering , physics , agronomy , geometry , mathematics , quantum mechanics , artificial intelligence , seismology , geology , biology , operating system
This article proposes a novel scheme to improve the doubly-fed induction generator (DFIG) behavior during grid fault. The DFIG’s are sensitives to voltage variations when abrupt variations of the wind velocity arrive. For enhancing DFIG behavior, protecting the converters, and smoothing the fluctuations power output of the DFIG under sag voltage; a novel hybrid energy storage system scheme and its controller are proposed. The main advantages of our approach are a faster response and suppressing overvoltage on DC bus and globally less stress in the storage system. The control structure decreases the tiredness on the battery and restores the DC bus voltage rapidly, globally the battery system operating time increases. The results obtained by simulations in MATLAB validate the benefits of the suggested control.