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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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Research on the hydraulic power take-off unit of a hybrid wave energy converter
OCEANS 2016 - Shanghai, 2016As an economical and easy deployment wave energy converter (WEC), oscillating bodies WEC is gained more and more attention, and it has great significance of research, especially on supplying power for buoy observation and underwater sensor network. Hybrid wave energy converter, it also named combined mode wave energy converter, can capture the kinetic ...
Ke Sun +7 more
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International Journal of Precision Engineering and Manufacturing-Green Technology, 2020
The hydraulic power take-off (HPTO) is considered as the most promising method to convert wave power to electrical power. This paper presents an experimental assessment of the power conversion of a wave energy converter using HPTO. Based on the experimental results, a modification of accumulator pre-charged pressure and a control strategy were proposed
Tri Dung Dang +2 more
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The hydraulic power take-off (HPTO) is considered as the most promising method to convert wave power to electrical power. This paper presents an experimental assessment of the power conversion of a wave energy converter using HPTO. Based on the experimental results, a modification of accumulator pre-charged pressure and a control strategy were proposed
Tri Dung Dang +2 more
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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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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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Design and Modeling of a Novel Internal Combustion Engine with Direct Hydraulic Power Take-off
SAE International Journal of Alternative Powertrains, 2013<div class="section abstract"><div class="htmlview paragraph">This paper introduces a Hydraulic Linear Engine (HLE) concept and describes a model to simulate instantaneous engine behavior. The United States Environmental Protection Agency has developed an HLE prototype as an evolution of their previous six-cylinder, four-stroke, free-piston
Kevin Zaseck +4 more
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Bond graph modelling of a wave energy conversion system with hydraulic power take-off
Renewable Energy, 2012A system viewpoint is essential in the study of wave energy converters, since several different energy domains are involved in such devices. In this regard, bond graph, a graphical, port-based approach to modelling engineering systems, serves as a useful tool.
Adi Kurniawan +2 more
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OCEANS 2015 - Genova, 2015
Wave energy is a promising new player in the renewable energy field. The exploitable power within the world's oceans is significant and many developers try to capture it by developing wave energy converter (WEC) concepts. This research focussed on the conversion of the WEC motions into usable electricity by the power take-off system (PTO). Specifically,
Tim Verbrugghe +2 more
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Wave energy is a promising new player in the renewable energy field. The exploitable power within the world's oceans is significant and many developers try to capture it by developing wave energy converter (WEC) concepts. This research focussed on the conversion of the WEC motions into usable electricity by the power take-off system (PTO). Specifically,
Tim Verbrugghe +2 more
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Design of a hydraulic power take-off system for the wave energy device with an inverse pendulum
China Ocean Engineering, 2014This paper describes a dual-stroke acting hydraulic power take-off (PTO) system employed in the wave energy converter (WEC) with an inverse pendulum. The hydraulic PTO converts slow irregular reciprocating wave motions to relatively smooth, fast rotation of an electrical generator.
Da-hai Zhang +4 more
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Model Experiment on an OWC-Type Wave-Energy Converter With Hydraulic Power Take-Off
21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 4, 2002A wave-energy converter of the OWC type is described, in which the absorbed wave energy is converted to useful energy by means of a hydraulic power take-off. Means are provided to enable the float to be latched for phase control. The float is connected to a piston pump, which pumps water from the level of the water in the wave channel to a higher level,
Torkel Bjarte-Larsson +3 more
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