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

• Published in: Electrical engineering Vol. 100; no. 2; pp. 491 - 498
• Main Authors: Döşoğlu, M. Kenan, Güvenç, Uğur, Sönmez, Yusuf, Yılmaz, Cemal
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2018; Springer Nature B.V
• Subjects: Data buses; Demagnetization; Economics and Management; Electrical Engineering; Electrical Machines and Networks; Energy Policy; Engineering; Induction generators; Low voltage; Original Paper; Power Electronics; Stators; Transient stability; Wind farms; Wind power; Wind power generation; FDC; Transient stability; DFIG; EMF
• ISSN: 0948-7921; 1432-0487
• DOI: 10.1007/s00202-017-0522-6

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.