Results 61 to 70 of about 384,180 (210)

DFIG versus PMSG for marine current turbine applications [PDF]

open access: yes, 2012
Emerging technologies for marine current turbine are mainly relevant to works that have been carried out on wind turbines and ship propellers. It is then obvious that many electric generator topologies could be used for marine current turbines. As in the
BENELGHALI, Seifeddine   +3 more
core  

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

Movement Responses of Seals During Pile Driving for Offshore Wind Farm Construction

open access: yesAnimal Conservation, EarlyView.
Despite rapid growth of the renewable energy industry to meet climate change targets, predictions of population‐level impacts on wildlife are currently hindered by a limited understanding of individual behavioural responses to these developments.
Katherine F. Whyte   +4 more
wiley   +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

Development of a contra-rotating tidal current turbine and analysis of performance [PDF]

open access: yes, 2007
A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
Clarke, Joseph Andrew   +9 more
core   +3 more sources

Dynamic Behavior of Floating Tidal Current Power Device Considering Turbine Specifications

open access: yes한국해양공학회지, 2018
Tidal current power is one of the energy sources of the ocean. Electricity can be generated by converting the flow energy of the current into the rotational energy of a turbine.
Chul-Hee Jo   +3 more
doaj   +1 more source

Performance evaluation and modelling of the Atir marine current turbine

open access: yesIET Renewable Power Generation, 2021
In this study, the behaviour of a full‐size prototype of a platform for tidal energy was analysed. The turbine of this platform is formed by two counter‐rotating rotors aligned with the tidal current, such that one rotor is always under the wake of the ...
Eloy Díaz‐Dorado   +4 more
doaj   +1 more source

Estimating the total mortality of seabirds following a marine heat wave

open access: yesConservation Biology, EarlyView.
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers   +3 more
wiley   +1 more source

A Review on Numerical Development of Tidal Stream Turbine Performance and Wake Prediction

open access: yesIEEE Access, 2020
Recently, the output of Computational Fluid Dynamic (CFD) prediction on tidal stream turbine systems has been receiving great attention owing to the vast and untapped tidal stream potential.
Yuquan Zhang   +7 more
doaj   +1 more source

EFFICIENCY OF TIDAL TURBINE FARMS [PDF]

open access: yesCoastal Engineering Proceedings, 2012
The paper investigates the efficiency of tidal turbine farms and looks at the effects of various parameters. Numerical modelling and analytic solutions are used. The two methods are compared and differences highlighted. Some loose guidelines are included.
Colin Christian, Ross Vennel
openaire   +1 more source

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