Sensitivity Analysis in Transient Rotor Current Model and Control of DFIG during Voltage Sags

Abstract:

The purposes to improve low voltage ride through (LVRT) capability of double-fed induction generator (DFIG) is to reduce rotor over-current during voltage sags. The rotor transient characteristic and its influencing factors are considered. The transient rotor current model is studied in detail. Then, the influencing degrees of structural and state parameters are determined. By sensitivity analysis, the influence degree is evaluated quantitatively. The simulation results have shown that the proposed method can provide theoretical basis to improve LVRT capability of DFIG..

• Periodical: Advanced Materials Research (Volume 722)
• Pages: 147-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.722.147
• Online since: July 2013
• Authors: Ying Wang, Zhi Ce Zou, Xian Yong Xiao
• Keywords: Double Fed Induction Generation (DFIG), Influencing Factor, Low Voltage Ride through (LVRT), Sensitivity Analysis, Transient Model

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