Enhancement of demagnetization control for low-voltage ride-through capability in DFIG-based wind farm


Dosoglu M. K., GÜVENÇ U., SÖNMEZ Y., YILMAZ C.

ELECTRICAL ENGINEERING, vol.100, no.2, pp.491-498, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 100 Issue: 2
  • Publication Date: 2018
  • Doi Number: 10.1007/s00202-017-0522-6
  • Journal Name: ELECTRICAL ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.491-498
  • Keywords: DFIG, FDC, EMF, Transient stability, FED INDUCTION GENERATOR, FAULT RIDE, CONTROL STRATEGY, TURBINES, STABILITY, SYSTEMS
  • Gazi University Affiliated: Yes

Abstract

Low voltage ride through (LVRT) is one of the most popular methods to protect doubly fed induction generator (DFIG) against balanced and unbalanced voltage dips. In this study, a novel LVRT capability strategy is enhanced using forcing demagnetization controller (FDC) in DFIG-based wind farm. Moreover, not only stator circuit but also rotor circuit were developed by electromotor force (EMF) for LVRT in DFIG-based wind farm. The transient stability performances of the DFIG with and without the FDC and EMF were compared for three- and two-phase faults. In addition to variations such as 34.5 kV bus voltage and terminal voltage of DFIG, speed of DFIG, electrical torque of DFIG and d-q axis rotor-stator current variations of DFIG were also evaluated. It was seen that the system became stable within a short time using the FDC and EMF.