A new approach for low voltage ride through capability in DFIG based wind farm

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Küçük Resim

Tarih

2016

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

Sayı

Künye