Results 31 to 40 of about 5,731 (237)

Assessment of pulsating torque mitigation control strategy through tidal turbine emulation

open access: yesThe Journal of Engineering, 2019
This article presents the modelling and assessment of a pulsating torque mitigation control strategy by using a tidal turbine emulator in a laboratory environment.
Marios Charilaos Sousounis   +2 more
doaj   +1 more source

Tidal Energy: The benthic effects of an operational tidal stream turbine

open access: yesMarine 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
openaire   +5 more sources

New Concept for Assessment of Tidal Current Energy in Jiangsu Coast, China

open access: yesAdvances in Mechanical Engineering, 2013
Tidal current energy has attracted more and more attentions of coastal engineers in recent years, mainly due to its advantages of low environmental impact, long-term predictability, and large energy potential.
Ji-Sheng Zhang   +4 more
doaj   +1 more source

Power Extraction Strategy of a Robust kW Range Marine Tidal Turbine Based on Permanent Magnet Synchronous Generators and Passive Rectifiers [PDF]

open access: yes, 2014
This paper presents a kW range marine tidal current power generation system consisting of a fixed pitch marine current turbine (MCT) with two permanent magnet synchronous generators in the turbine shaft, two diode rectifiers (each rectifier is associated
ODEDELE, Nafissah   +5 more
core   +1 more source

An optimal tuning strategy for tidal turbines [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
Tuning wind and tidal turbines is critical to maximizing their power output. Adopting a wind turbine tuning strategy of maximizing the output at any given time is shown to be an extremely poor strategy for large arrays of tidal turbines in channels. This ‘impatient-tuning strategy’ results in far lower power output, much higher structural loads and ...
openaire   +2 more sources

Modelling tidal current turbine wakes using a coupled RANS-BEMT approach as a tool for analysing power capture of arrays of turbines [PDF]

open access: yes, 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
core   +1 more source

Numerical simulations of biofouling effects on the tidal turbine hydrodynamic

open access: yesInternational Marine Energy Journal, 2018
Biofouling by benthic organisms must be considered for tidal turbine operation and maintenance because it modifies hydrodynamics (drag and resistance) and could be detrimental to the turbine performance.
A. Rivier   +3 more
doaj   +1 more source

Turbine sound may influence the metamorphosis behaviour of estuarine crab megalopae. [PDF]

open access: yesPLoS ONE, 2012
It is now widely accepted that a shift towards renewable energy production is needed in order to avoid further anthropogenically induced climate change. The ocean provides a largely untapped source of renewable energy.
Matthew K Pine   +2 more
doaj   +1 more source

Power Limitation Control for a PMSG-Based Marine Current Turbine at High Tidal Speed and Strong Sea State [PDF]

open access: yes, 2013
This paper deals with the control strategies for a fixed-pitch marine current turbine (MCT) when the marine current speed exceeds the rated value corresponding to the rated power of generator and converter.
SCUILLER, Franck   +10 more
core   +1 more source

Hydrodynamic Performance Analysis on Different Airfoils of Straight Blade H Type of Vertical Axis Tidal Current Energy Turbine

open access: yesMATEC Web of Conferences, 2016
Airfoil is a key factor that influences the hydrodynamic performance of vertical axis tidal current energy turbine. In order to explore the influences from the runner’s blade airfoil towards its hydrodynamic performance, three-dimensional unsteady flow ...
Kan Kan   +5 more
doaj   +1 more source

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