Transient stability studies of doubly-fed induction generator using different drive train models

Three equivalent drive train models of a wind turbine generator (WTG) are presented in this paper. The flexibility of the blades bending and the drive train are considered to analyze its transient stability under a three-phase fault. The simulations show that the fifth order lumped-mass model provid...

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Bibliographic Details
Published in2011 IEEE Power and Energy Society General Meeting pp. 1 - 6
Main Authors Xiaoqing Han, Pengmin Wang, Peng Wang, Wenping Qin
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2011
Subjects
Blades
doubly-fed induction generator
drive train model
fatigue life
Generators
inertia constant
Mathematical model
power system simulation
Rotors
Shafts
short circuit
stiffness
Torque
torsional oscillation
transient stability
wind energy
Wind turbines
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Summary:Three equivalent drive train models of a wind turbine generator (WTG) are presented in this paper. The flexibility of the blades bending and the drive train are considered to analyze its transient stability under a three-phase fault. The simulations show that the fifth order lumped-mass model provides too optimistic estimation while the ninth order three-mass model can observe the motion of shaft system, which is more suitable for transient stability analysis. When a WTG is perturbed, a large torque may be produced in the drive train which may result in torsional oscillations between different parts of the WTG shaft system, and thereby reduce the fatigue life of the shaft due to bearing the large torque repeatedly.
ISBN:9781457710001
1457710005
ISSN:1932-5517
DOI:10.1109/PES.2011.6039209