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      Maximum power extraction from a hydrokinetic energy conversion system

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          Abstract

          Hydrokinetic energy conversion systems capture the power available in the water flowing in waterways. An electrical interface for the power take-off of a hydrokinetic energy conversion system was designed and a control strategy for the maximum power extraction was investigated. A laboratory prototype was used for the experimental characterisation of the system. High efficiencies were observed because of the restricted flow conditions. The power curves obtained from the experimental results were used for the simulation of the system in MATLAB/Simulink. A ‘perturb and observe’ method was used for the maximum power point tracking (MPPT). A control scheme based on a heuristic algorithm suitable for restricted and turbulent water flows was developed. A practical advantage of this scheme is that it does not require the use of mechanical sensors. The MPPT of the laboratory prototype was simulated and experimental validation undertaken, with simulation and experimental results agreeing well. The MPPT of a full-scale hydrokinetic energy conversion system was simulated to assess its performance towards practical deployment.

          Most cited references27

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          Design of a maximum power tracking system for wind-energy-conversion applications

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            Hydrokinetic energy conversion systems and assessment of horizontal and vertical axis turbines for river and tidal applications: A technology status review

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              A Novel Algorithm for Fast and Efficient Speed-Sensorless Maximum Power Point Tracking in Wind Energy Conversion Systems

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                Author and article information

                Contributors
                Journal
                IET-RPG
                IET Renewable Power Generation
                IET Renew. Power Gener.
                The Institution of Engineering and Technology
                1752-1416
                1752-1424
                8 March 2019
                29 March 2019
                8 July 2019
                : 13
                : 9
                : 1411-1419
                Affiliations
                School of Engineering, Cardiff University , Queen's Buildings, The Parade, CF24 3AA Cardiff, Wales, UK
                Author information
                https://orcid.org/0000-0001-6361-4454
                Article
                IET-RPG.2018.5642 RPG.2018.5642.R2
                10.1049/iet-rpg.2018.5642
                9f64aabd-2be9-4ccf-b991-fe1162a675d4
                © The Institution of Engineering and Technology
                History
                : 25 July 2018
                : 30 January 2019
                : 22 February 2019
                Page count
                Pages: 0
                Funding
                Funded by: Engineering and Physical Sciences Research Council
                Award ID: EP/I013636/1
                Categories
                Research Article

                Computer science,Engineering,Artificial intelligence,Electrical engineering,Mechanical engineering,Renewable energy
                experimental results,power generation control,power curves,maximum power point tracking,maximum power point trackers,turbulent water flows,full-scale hydrokinetic energy conversion system,turbulence,maximum power extraction,hydrokinetic energy conversion systems capture,laboratory prototype,restricted flow conditions,photovoltaic power systems,restricted water flows,direct energy conversion

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