DFIG-based offshore wind power plant connected to a single VSC-HVDC operated at variable frequency: Energy yield assessment
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10.1016/j.energy.2015.04.038
Inclou dades d'ús des de 2022
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hdl:2117/77414
Tipus de documentArticle
Data publicació2015-06-15
Condicions d'accésAccés obert
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Abstract
The existence of HVDC (High Voltage Direct Current) transmission systems for remote offshore wind power plants allows devising novel wind plant concepts, which do not need to be synchronized with the main AC grid. This paper proposes an OWPP (offshore wind power plant) design based on variable speed wind turbines driven by DFIGs (doubly fed induction generators) with reduced power electronic converters connected to a single VSC-HVDC converter which operates at variable frequency and voltage within the collection grid. It is aimed to evaluate the influence of the power converter size and wind speed variability within the WPP on energy yield efficiency, as well as to develop a coordinated control between the VSC-HVDC converter and the individual back-to-back reduced power converters of each DFIG-based wind turbine in order to provide control capability for the wind power plant at a reduced cost. To maximise wind power generation by the OWPP, an optimum electrical frequency search algorithm for the VSC-HVDC converter is proposed. Both central wind power plant control level and local wind turbine control level are presented and the performance of the system is validated by means of simulations using MA'FLAB/Simulink (R). (C) 2015 Elsevier Ltd. All rights reserved.
Citacióde Prada, M., Díaz, F., Gomis-Bellmunt, O., Sumper, A. DFIG-based offshore wind power plant connected to a single VSC-HVDC operated at variable frequency: Energy yield assessment. "Energy", 15 Juny 2015, vol. 86, p. 311-322.
ISSN0360-5442
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