Enhancement of new rotor resistance unit for doubly fed induction generator-based wind turbines
Yükleniyor...
Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
It is very important to obtain smooth power and limit over-currents in grid-connected doubly fed induction generator (DFIG)-based wind turbines. Therefore, the rotor resistance unit can be used for power and over-currents control in DFIG. However, it may be insufficient to reduce oscillations in large power systems. This study aims to develop a new rotor resistance unit for low voltage ride through (LVRT) capability in DFIG. Moreover, electromotive-force (emf) models have been also developed in the stator and rotor circuit. The stator emf model of the simulation study was developed in the DFIG for accuracy and speed, while the rotor emf model was developed for over-current occurring in transient situations. In using the new rotor resistance unit and the stator-rotor emf, it was observed that the system stabilized in a short time, and the oscillations formed by the balanced and unbalanced faults on the grid side were damped.
Açıklama
Anahtar Kelimeler
LVRT, DFIG, New rotor resistance unit, Stator-rotor emf model, Balanced and unbalanced faults, Low-Voltage Ride, Sliding Mode Control, Fault Ride, Through Enhancement, Dfig, Capability, Strategy, Scheme
Kaynak
Computers & Electrical Engineering
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
90
