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Providing Ancillary Services with Wind Turbine Generators Based on DFIG with a Two-Branch Static Converter

Ernande Eugenio C. Morais, Francisco Kleber de A. Lima, Jean M. L. Fonseca, Carlos G. C. Branco and Lívia de A. Machado
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Ernande Eugenio C. Morais: Department of Electrical Engineering, Federal University of Ceara, Fortaleza CE 60020-181, Brazil
Francisco Kleber de A. Lima: Department of Electrical Engineering, Federal University of Ceara, Fortaleza CE 60020-181, Brazil
Jean M. L. Fonseca: Department of Electrical Engineering, Federal University of Ceara, Fortaleza CE 60020-181, Brazil
Carlos G. C. Branco: Department of Electrical Engineering, Federal University of Ceara, Fortaleza CE 60020-181, Brazil
Lívia de A. Machado: Department of Electrical Engineering, Federal University of Ceara, Fortaleza CE 60020-181, Brazil

Energies, 2019, vol. 12, issue 13, 1-21

Abstract: This work aims to analyze and validate through mathematical modeling and experimental results, in a three-phase three-wire electrical system, the technical viability of a static power converter with a two-level topology with only two controlled branches (2L2B), operating as a grid-side converter (GSC) in a wind turbine generator based on a doubly fed induction generator (DFIG). With this reduced-switches topology, the GSC is able to regulate the DC-link voltage level from the generator back-to-back converter and provide ancillary services of harmonic filtering and reactive power compensation from linear/nonlinear loads connected to the point of common coupling. An 8-kVA experimental prototype was implemented in the laboratory to validate the proposal. The prototype control system was realized using the dSPACE DS1103 PPC Controller Board platform programmed via MATLAB/Simulink. The effectiveness of the proposed system is verified by comparing the results obtained with the 2L2B topology to the ones with the usual two-level three-branch topology.

Keywords: wind power generation; DFIG; ancillary services; power quality; reduced-switches topology (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (1)

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