Fuzzy terminal sliding mode control for extracting maximum marine current energy

Ya-jing Gu, Xiu-xing Yin, Hong-wei Liu, Wei Li and Yong-gang Lin

Energy, 2015, vol. 90, issue P1, 258-265

Abstract: A new fuzzy terminal sliding mode control strategy is proposed to extract the maximum marine current energy. The control strategy mainly consists of a fuzzy logic controller for deriving the reference q-axis generator current and a non-singular terminal sliding mode current controller capable of accurately tracking the derived reference generator current. A swell filter is also involved in the control strategy to improve the generator power quality in case of swell effects. The detailed design process and stability condition analysis of this control strategy have been thoroughly investigated. The effectiveness of the proposed control strategy has been evaluated in a 60 kW marine current power system. Comparative results demonstrate that the proposed control strategy can be employed to more effectively capture the maximum marine current power and to considerably eliminate the generator power fluctuations as compared with a conventional second-order sliding mode control method.

Keywords: Marine current power system; Maximum marine power extraction; Fuzzy logic controller; Sliding mode current controller (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:90:y:2015:i:p1:p:258-265

DOI: 10.1016/j.energy.2015.06.068

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