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Oil-hydraulic power take-off concept for an oscillating wave surge converter
Renewable Energy, 2020Abstract A power take-off oil-hydraulic system is designed for an oscillating wave surge converter. The adaptation of the converter to the power take-off is performed with genetic algorithms in order to find out the optimal geometrical and control parameters, while different power take-off layout configurations are simulated to maximize their ...
M. Calvário +4 more
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DEVELOPMENT OF A COMPUTER-CONTROLLED, HYDRAULIC, POWER TAKE-OFF (PTO) SYSTEM
Transactions of the ASAE, 2005Nearly all tractor PTO arrangements used today consist of a rotating mechanical shaft with two or more universal joints. This arrangement continues to be an entanglement hazard. By driving the attachment with fluid power, this hazard could be eliminated.
null R. S. Thomas, null D. R. Buckmaster
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Reliability prediction of a wave energy converter’s hydraulic power take-off system
2021MegaRoller wave energy converter (WEC) concept is being developed to produce cost-efficient renewable energy from the kinetic energy of ocean waves. The MegaRoller device consists of an oscillating flange, which captures the energy from waves, and two power take-off (PTO) systems that convert the kinetic energy into electricity.
Heikkilä, Eetu +3 more
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Optimization of hydraulic power take-off system settings for point absorber wave energy converter
Renewable Energy, 2022Ocean wave renewable energy is becoming a key part of the renewable energy industry over the recent decades. By developing wave energy converters (WECs), their power take-off (PTO) systems have been investigated to enhance the power extraction from the ocean.
Erfan Amini +6 more
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Numerical Analysis on Hydraulic Power Take-Off for Wave Energy Converter and Power Smoothing Methods
Volume 10: Ocean Renewable Energy, 2018One of the primary challenges for wave energy converter (WEC) systems is the fluctuating nature of wave resources, which require the WEC components to be designed to handle loads (i.e., torques, forces, and powers) that are many times greater than the average load.
Yi-Hsiang Yu, Nathan Tom, Dale Jenne
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Performance investigation of a hydraulic power take-off system for wave energy conversion
2019 IEEE 8th International Conference on Fluid Power and Mechatronics (FPM), 2019Hydraulic power take-off system is used in wave energy conversion, because its characteristics are well-adapted to larger power and low frequency waves. The hydraulic PTO system is composed of a hydraulic; cylinder, two accumulators, check valves bridge circuits and a hydraulic motor.
Hong Gao, Ruizhi Liang
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Laboratory experiment on heaving body with hydraulic power take-off and latching control
Ocean Engineering, 2006A heaving axisymmetric floating body is tested with sinusoidal incident waves in a wave channel. It is connected to the piston of a pump, and it may be latched by an electromagnetic mechanism. Experimental results are compared with a linear mathematical model, for heave response, hydrodynamic parameters, absorbed wave power and converted hydraulic ...
T. Bjarte-Larsson, J. Falnes
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Design of a hydraulic power take-off test rig for wave energy converters
2016 Techno-Ocean (Techno-Ocean), 2016a hydraulic test bench for a wave energy converter was designed and built. Reciprocating motion generated by incident wave was rectified by a hydraulic circuit, and the rectified flow drives a generator. In this experiment, total efficiency was 40% to 50% using 48-pole generator. Also a Simulink program was made to simulate the hydraulic circuit. Power
Yasutaka Imai +3 more
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Design and Control of Hydraulic Power Take-Offs for Wave Energy Converters [PDF]
, 2012 Renewable marine energy has attracted considerable interest in recent years,especially in the UK due to its excellent location to take advantage of this sustainableenergy source. Dierent types of device have been developed over severaldecades to capture the energy of sea waves but they all need to be able to convertthis mechanical energy into ...
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Next-Generation Hydrokinetic Power Take-Off via a Novel Variable-Stroke Hydraulic System
Volume 9B: Ocean Renewable Energy, 2014Hydrokinetic power generation has the potential to supply nearly ten percent of the United States annual energy demand. However, the hydrokinetic generation has lagged behind other renewable energy technologies, and many engineering challenges remain.
Amanda M. Plagge +2 more
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