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Comparison of Two Alternative Hydraulic PTO Concepts for Wave Energy Conversion [PDF]
, 2011 Hydraulic Power Take Off (PTO) systems for wave energy usually fall into two broad categories. These are, firstly, variable pressure systems where control of the primary force/torque is achieved by pressure modulation, and secondly, constant pressure systems where control of the primary force/torque is achieved by valve transitions that select between ...
Costello, Ronan +2 more
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EnergiesThe ocean offers abundant wind and wave energy resources. This paper proposes an integrated concept that co-locates a semi-submersible floating wind platform with wave energy converters (WECs) to exploit the geographical consistency of these resources ...
Guohua Wang +8 more
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A Review of Wave-to-Wire Models for Wave Energy Converters
Energies, 2016 Control of wave energy converters (WECs) has been very often limited to hydrodynamic control to absorb the maximum energy possible from ocean waves. This generally ignores or significantly simplifies the performance of real power take-off (PTO) systems ...
Markel Penalba, John V. Ringwood
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Design and performance assessment of electric implements: A vine leaf remover
Smart Agricultural TechnologyReducing the environmental impact of agronomic activities represents one of the major challenges for agriculture and farmers. In response, manufacturers have increasingly focused their research efforts on the electrification of tractors and agricultural ...
Emilio Dicembrini +7 more
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Applied Ocean ResearchHydraulic auxiliary mooring (HAM) systems, as an advanced mooring technology, enhance harbor operational safety and efficiency by suppressing vessel motions. Despite their practical implementations worldwide, publicly available research literature on the
Chuanlong Xin, Yanji Wei, Heng Jin
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Test and demonstration carriage for tractor-powered implements
Agricultural and Food Science, 1968 A movable test and demonstration carriage for tractor-powered implements (Figure 1) was constructed mainly for machine demonstrations to the agricultural students at the University of Helsinki.
Erkki H. Oksanen
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Journal of Marine Science and EngineeringThe moving particle semi-implicit (MPS) method is employed to investigate the dynamic response of a wave energy converter (WEC) buoy subjected to dam-break flows.
Jun Wang, Zhaode Zhang, Date Li
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High-frequency current source converter for a direct drive powertrain in a wave energy converter
The Journal of Engineering, 2019 Wave energy converters (WECs) generally use a mechanical solution such as hydraulics or gearing to optimise the extraction of energy from the incoming waves prior to converting it into electrical energy via a high-speed rotating generator.
Stephen P. McDonald +2 more
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Quasi-Static Tractor Implement Model for Assessing Energy Savings in Partial Electrification
EnergiesThis paper presents a quasi-static model for assessing potential energy savings through partial electrification of a land leveler implement. The quasi-static model simulates the behavior of the hydraulic circuit components, including the pump and a spool-
Matteo Berto +2 more
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Modeling and testing of the point absorber system to convert Sea Wave Energy into electrical energy
نشریه مهندسی دریا, 2020 Sea waves are an important source of environmental energy which can be converted into energy needed for different purposes. In current study, a floating-point absorber (FPA) wave energy converter is simulated, built, and tested.
Mohamadreza Negahdari +4 more
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