Low speed doubly salient permanent magnet generator with passive rotor for a tidal current turbine [PDF]
, 2013 This paper presents a low speed permanent magnet generator that can be associated with a tidal turbine. This structure has a passive rotor which leads to a simple and robust structural solution. The principle of operation and an electromecanical model of
MOREAU, Luc +3 more
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Turbulence and Wake Effects in Tidal Stream Turbine Arrays [PDF]
Volume 10: Ocean Renewable Energy, 2018 Electricity generation from tidal current can provide a reliable and predictable addition to a reduced carbon energy sector in the future. Following the deployment of the first multi-turbine array, significant cost reduction can be achieved by moving beyond demonstrator projects to large scale tidal turbine arrays.
Nuernberg, Martin, Tao, Longbin
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Performance of Pitch and Stall Regulated Tidal Stream Turbines [PDF]
IEEE Transactions on Sustainable Energy, 2014 Controllers for a pitch and a stall regulated horizontal axial flow, variable-speed tidal stream turbine are developed, and a performance comparison is carried out. Below rated flow speed, both turbines are operated in variable-speed mode so that the optimum tip-speed ratio is maintained. One of the turbines has variable pitch blades, which above rated
Whitby, Benjamin +1 more
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Energies, 2013 Tidal stream speeds in straits are accelerated because of geographic and bathymetric features. For instance, narrow channels and shallows can cause high tidal stream energy.
Ming-Hsi Hsu, Wei-Bo Chen, Wen-Cheng Liu
doaj +1 more source
Tidal Energy: The benthic effects of an operational tidal stream turbine
Marine Environmental Research, 2017 The effect of modified flow on epifaunal boulder reef communities adjacent to the SeaGen, the world's first grid-compliant tidal stream turbine, were assessed. The wake of the SeaGen was modelled and the outputs were used in conjunction with positional and substrate descriptor variables, to relate variation in epifaunal community structure to the ...
J.P.J. O'Carroll +3 more
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Modelling tidal current turbine wakes using a coupled RANS-BEMT approach as a tool for analysing power capture of arrays of turbines [PDF]
, 2011 The downstream evolution of the wake generated by a rotating tidal energy conversion device influences the performance of the device itself as well as the performance of any downstream device.
Phillips, Alexander B. +11 more
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Incorporation of a Non-Constant Thrust Force Coefficient to Assess Tidal-Stream Energy
Energies, 2019 A novel method for modelling tidal-stream energy capture at the regional scale is used to evaluate the performance of two marine turbine arrays configured as a fence and a partial fence.
Lilia Flores Mateos, Michael Hartnett
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Surface Characterisation of Kolk-Boils within Tidal Stream Environments Using UAV Imagery
Journal of Marine Science and Engineering, 2021 High-flow tidal stream environments, targeted for tidal turbine installations, exhibit turbulent features, at fine spatio-temporal scales (metres and seconds), created by site-specific topography and bathymetry. Bed-derived turbulent features (kolk-boils)
James Slingsby +8 more
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Lifetime Analysis of IGBT Power Modules in Passively Cooled Tidal Turbine Converters
Energies, 2020 Thermal cycling is one of the major reasons for failure in power electronic converters. For submerged tidal turbine converters investigating this failure mode is critical in improving the reliability, and minimizing the cost of energy from tidal turbines.
Faisal Wani +6 more
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Shaping array design of marine current energy converters through scaled experimental analysis [PDF]
, 2013 Marine current energy converters or tidal turbines represent an emerging renewable energy technology that can provide a predictable supply of electricity.
Myers, L.E. +3 more
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