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Simplified Modeling of a DFIG for Transient Studies in Wind Power Applications

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6 Author(s)
Luna, A. ; Dept. of Electr. Eng., Tech. Univ. of Catalonia (UPC), Barcelona, Spain ; Lima, F.K.A. ; Santos, D. ; Rodriguez, P.
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Improving the fault ride-through (FRT) capability of doubly fed induction generators (DFIGs) in wind power applications is a very important challenge for the wind power industry. The mathematical models of such generators enable us to analyze their response under generic conditions. However, their mathematical complexity does not contribute to simplifying the analysis of the system under transient conditions and hence does not help in finding straightforward solutions for enhancing their FRT. This paper presents a simplified model of the DFIG, which has been extracted from the classical fifth-order model, which can accurately estimate the behavior of the system while significantly reducing its complexity. In this paper, the mathematical deduction of this model will be presented, and simulations and experimental results will be shown to demonstrate the accuracy and reliability of the proposed algorithm.

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Industrial Electronics, IEEE Transactions on  (Volume:58 ,  Issue: 1 )