Fault Current Contribution Analysis of Doubly Fed Induction Generator-Based Wind Turbines

The fault current contribution of the doubly fed induction generator-based wind turbines (DFIG-WTs) is dictated by a combination of factors, including the electrical parameters of the machine and the controller configuration of the converters. This paper presents an analytical derivation of short-ci...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 2015-09, Vol.30 (3), p.874-882
Main Authors: El-Naggar, Ahmed, Erlich, Istvan
Format: Article
Language:English
Subjects:
Circuit faults
Doubly fed induction generator (DFIG)
fault current contribution
Fault currents
Rotors
short-circuit current
Stators
Time-frequency analysis
Transfer functions
Transient analysis
wind turbine
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Summary:The fault current contribution of the doubly fed induction generator-based wind turbines (DFIG-WTs) is dictated by a combination of factors, including the electrical parameters of the machine and the controller configuration of the converters. This paper presents an analytical derivation of short-circuit current quantities considering the controller influences. Mathematical models of the short-circuit current were first developed based on the closed-loop transfer functions, and approximate expressions for time constants and frequencies were derived. The mathematical models and the expressions for time constants and frequencies were later validated using a manufacturer-based simulation model and a nonlinear optimization for parameter extraction.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2015.2398671