A new approach for low voltage ride through capability in DFIG based wind farm
Yükleniyor...
Dosyalar
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Protection against voltage dips is very important for transient stability in a Doubly Fed Induction Generator (DFIG). Conventional crowbar circuits have been used for protection of DFIGs; however, they may be insufficient in some transient situations. Therefore, the Low Voltage Ride Through (LVRT) capability was enhanced by a Demagnetization Current Controller (DCC) for the purpose of transient analysis. In addition, both stator and rotor circuit electromotive forces were modeled in a DFIG. The performances of the DFIG models with and without the DCC were compared. Modeling was carried out in a MATLAB/SIMULINK environment. A comparison of system behaviors was made between three-phase faults with and without a stator-rotor dynamic. Parameters for the DFIG including output voltage, speed, electrical torque variations and d-q axis rotor-stator current variations in addition to a 34.5 kV bus voltage were examined. It was found that in the DFIG model the system became stable in a short time when using the DCC. (C) 2016 Elsevier Ltd. All rights reserved.
Açıklama
WOS: 000380591500028
Anahtar Kelimeler
DFIG, DCC, Stator-rotor electromotive force, Transient stability
Kaynak
International Journal Of Electrical Power & Energy Systems
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
83
