Results 11 to 20 of about 315 (185)

Misplaced fears? What the evidence reveals of the ecological effects of tidal power generation

Ecological Solutions and Evidence
Tidal energy is a dependable and clean power source that stands as a compelling alternative to fossil fuels. Despite this promise, tidal energy projects face barriers to practical implementation, and objections to proposed schemes often stem from ...
Sylvia E. Ascher, Iris M. Gray, C. M. (Tilly) Collins   +2 more
doaj   +2 more sources

Fractional-Order PI Control of DFIG-Based Tidal Stream Turbine [PDF]

Journal of Marine Science and Engineering, 2020
This study mainly investigates the current and speed control strategies of a doubly-fed induction generator (DFIG), which is applied to a tidal stream turbine (TST). Indeed, DFIG using integer-order PI (IOPI) controller has been widely proposed in the applications with a similar system, especially in wind energy conversion system (WECS). However, these
Zhou, Zhibin, Chen, Hao, Xie, Wei, Chen, Xiyang, Han, Jingang, Aït-Ahmed, Nadia, Tang, Tianhao, Benbouzid, Mohamed   +7 more
openaire   +4 more sources

Potential Study of Tidal Stream Turbine Farm at Toyapakeh Strait, Bali

Ilmu Kelautan, 2021
In 2015, Bali Province is mandated by ESDM ministry to become the National Region of Clean Energy, promoting efforts to explore new source of electricity namely tidal stream energy.
Alamsyah Kurniawan, Prayla Putri Annani Barli, Munawir Bintang Pratama, Ahmad Fitriadhy   +3 more
doaj   +1 more source

ACTUATOR-LINE CFD MODELLING OF TIDAL-STREAM TURBINES [PDF]

Journal of Ocean Engineering and Marine Energy, 2016
CFD modelling of tidal turbines is described. For computational efficiency rotors are represented by rotating actuator lines and nacelles by partially-blocked cells. The computational implementation includes an arbitrary Lagrangian-Eulerian (ALE) approach to free-surface movement for wave motion.
Apsley, David, Stallard, Timothy, Stansby, Peter   +2 more
openaire   +4 more sources

Improving tidal turbine array performance through the optimisation of layout and yaw angles

International Marine Energy Journal, 2022
Tidal stream currents change in magnitude and direction during flood and ebb tides. Setting the most appropriate yaw angles for a tidal turbine is not only important to account for the performance of a single turbine, but can also be significant for the
Can Zhang, Stephan C. Kramer, Athanasios Angeloudis, Jisheng Zhang, Xiangfeng Lin, Matthew D. Piggott   +5 more
doaj   +1 more source

Viability Analysis of Tidal Turbine Installation Using Fuzzy Logic: Case Study and Design Considerations

Axioms, 2023
Tidal energy represents a clean and sustainable source of energy generation that can address renewable energy challenges, especially the global challenge of optimizing alternatives for stable supply.
Ángel M. Rodríguez-Pérez, César A. Rodríguez, Alba Márquez-Rodríguez, Julio J. Caparros Mancera   +3 more
doaj   +1 more source

A Probabilistic Methodology for Determining Collision Risk of Marine Animals with Tidal Energy Turbines

Journal of Marine Science and Engineering, 2023
Commercial development of tidal stream energy is hampered by technical and financial challenges, and impeded by uncertainty about potential environmental effects that drive environmental risk assessments and permitting (consenting) processes.
Andrea E. Copping, Daniel J. Hasselman, Charles W. Bangley, Joel Culina, Max Carcas   +4 more
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, R.M. Kennedy, A. Creech, G. Savidge   +3 more
openaire   +5 more sources

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, Ugalde Loo, Carlos Ernesto   +1 more
openaire   +1 more source

Towards a Low-Cost Modelling System for Optimising the Layout of Tidal Turbine Arrays

Energies, 2015
In the long-term, tidal turbines will most likely be deployed in farms/arrays where energy extraction by one turbine may significantly affect the energy available to another turbine.
Stephen Nash, Agnieszka I. Olbert, Michael Hartnett   +2 more
doaj   +1 more source