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Standard Calculation of Fault Current Contribution of Doubly Fed Induction Generator-Based Wind Turbine

In: Wind Turbines - Design, Control and Applications

Author

Listed:
  • Ahmed El-Naggar

Abstract

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. A detailed manufacturer-based simulation model for DFIG-WT was used for detailed analysis of the controller influences on short-circuit parameters. Based on the analysis, new approximate expressions of the short-circuit parameters were introduced and a new mathematical model of the short-circuit current were developed. The mathematical models and the expressions were later validated using nonlinear optimization for parameter extraction. Subsequently, a new method was introduced for fault current contribution calculation in a simple and reliable way similar to IEC-60909. The method is based on linearization and a newly introduced correction factor that takes the influence of the controller into account. Finally, the new introduced method was tested on a small wind farm and the results show better accuracy in comparison with IEC-60909.

Suggested Citation

  • Ahmed El-Naggar, 2016. "Standard Calculation of Fault Current Contribution of Doubly Fed Induction Generator-Based Wind Turbine," Chapters, in: Abdel Ghani Aissaoui & Ahmed Tahour (ed.), Wind Turbines - Design, Control and Applications, IntechOpen.
    • Handle: RePEc:ito:pchaps:102609
    DOI: 10.5772/63450
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    More about this item

    Keywords

    DFIG-WT; short-circuit; transient impedance; fault; time constant;
    All these keywords.

    JEL classification:

    • Q20 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - General
    • Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General

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