A fuzzy logic supervisor for active and reactive power control of a variable speed wind energy conversion system associated to a flywheel storage system |
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Authors: | Lilia Jerbi Lotfi Krichen Abderrazak Ouali |
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Affiliation: | National School of Engineering of Sfax, Advanced Control and Energy Management ACEM, BP W, 3038, Tunisia |
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Abstract: | In this paper, we propose a Wind Energy Conversion System (WECS) at variable speed using a Doubly Fed Induction Generator (DFIG) controlled on the rotor side through converters. A Flywheel Energy Storage System (FESS) is connected to the studied wind generator at the DC bus in order to evaluate its capacity to participate to the ancillary services. We study the improvement of the active and reactive power quality produced by the wind generator and its effect on the load voltage regulation connected to the wind generator. For that, a fuzzy logic supervisor is established to control the FESS operation and the DC bus voltage in order to smooth the active power fluctuations due to the random wind speed variations. A control law is also described to smooth the reactive power at the connection node to the grid. |
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Keywords: | WECS DFIG Flywheel Energy Storage System (FESS) Fuzzy logic supervisor Powers smoothing |
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