Crowbar hardware design enhancement for fault ride through capability in doubly fed induction generator-based wind turbines

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Tarih

2020

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier Science Inc

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

A crowbar circuit used in doubly fed induction generator (DFIG)-based wind turbines protects the system during transient stability. However, in a large power system, crowbar protection may be insufficient due to over-voltage and inrush currents occurring during balanced and unbalanced faults. Hence, in this study, a crowbar circuit was enhanced for fault ride through capability against balanced and unbalanced faults in a DFIG. The stator and rotor dynamic modeling used a crowbar hardware circuit design with rotor active impedance. Electromotive force voltages were used for the stator-rotor dynamics in the DFIG. Furthermore, crowbar resistance units were designed to meet the fault ride through DFIG requirement. The DFIG behaviors with and without the crowbar hardware circuit design were compared. The balanced and unbalanced faults were also compared in terms of behavior. Results showed that the circuit design of the crowbar hardware enabled the system to promptly become stable and eliminated the oscillations. (C) 2020 ISA. Published by Elsevier Ltd. All rights reserved.

Açıklama

Anahtar Kelimeler

DFIG, FRT, Crowbar hardware design, emf voltages, Crowbar resistance units, Low-Voltage Ride, Sliding Mode Control, Grid-Connected Dfig, Through Capability, Stability, Farm, Operation, Strategy, Statcom

Kaynak

Isa Transactions

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

104

Sayı

Künye