Results 121 to 130 of about 247 (148)
Hydraulic PTO model emulator for WEC tank tests
2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2018 In order to accelerate the overall power take off (PTO) design effort and to cheaply evaluate alternative designs, the construction of the real hydraulic PTO can be replaced with the design of a hydraulic PTO model emulator. This has the added advantage that it can be applied at model testing scales, where real hydraulic hardware would not give ...
Simone Giorgi, Bacelli Giorgio
exaly +3 more sources
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IEEE Journal of Oceanic Engineering, 2021
This study aims to investigate the power takeoff (PTO) performance of a two-buoy-type wave energy converter (WEC) with a PTO system under real sea conditions. The two-buoy-type WEC is composed of two hemispherical heaving buoys with a hydraulic PTO system. The hydrodynamic analysis considering two-body interaction is carried out based on the wave green
Sung-Jae Kim, Weoncheol Koo
exaly +2 more sources
This study aims to investigate the power takeoff (PTO) performance of a two-buoy-type wave energy converter (WEC) with a PTO system under real sea conditions. The two-buoy-type WEC is composed of two hemispherical heaving buoys with a hydraulic PTO system. The hydrodynamic analysis considering two-body interaction is carried out based on the wave green
Sung-Jae Kim, Weoncheol Koo
exaly +2 more sources
Design and performance test of hydraulic PTO for wave energy converter
International Journal of Precision Engineering and Manufacturing, 2012A PTO (power take-off) system for 50kW class rotating body type WEC (wave energy converter) has been designed, constructed and tested. The WEC has a semi-submerged, articulated structure composed of two cylindrical body sections linked together by a hinge joint.
Kyung-Shik Choi +3 more
exaly +2 more sources
Wave-to-wire modelling and hydraulic PTO optimization of a dense point absorber WEC array
Renewable EnergyWe investigate the hydrodynamic interactions and power extraction efficiency of a dense array of Point Absorber (PA) Wave Energy Converters (WECs) clustered around the fixed pillar of a wind turbine –the Ocean Grazer device– with a standard hydraulic Power Take-Off (PTO) system. Using potential flow theory, a detailed wave-to-wire model is developed in
Antonis I Vakis +2 more
exaly +3 more sources
ASME/BATH 2021 Symposium on Fluid Power and Motion Control, 2021
Abstract Wave energy is a promising renewable energy resource for coastal regions around the world, but is not yet an economically competitive source of electricity. More effective power take-off (PTO) designs would help to make wave power a feasible and clean source of energy. To do this, PTOs need to: i) enable controlled actuation, ii)
Jackson Wills, Adam Keester, Perry Y. Li
openaire +1 more source
Abstract Wave energy is a promising renewable energy resource for coastal regions around the world, but is not yet an economically competitive source of electricity. More effective power take-off (PTO) designs would help to make wave power a feasible and clean source of energy. To do this, PTOs need to: i) enable controlled actuation, ii)
Jackson Wills, Adam Keester, Perry Y. Li
openaire +1 more source
A numerical study on a floating hemisphere wave energy converter with hydraulic PTO system
OCEANS 2016 - Shanghai, 2016The aim of this study is to conduct a hydrodynamic analysis of a point absorber-type floating hemisphere with Power take-off(PTO) system for an optimum design of wave energy converter(WEC). In general, to predict the behavior of WEC, the equation of floating body motion can be solved in the frequency-domain analysis.
Sung-Jae Kim, Weoncheol Koo
exaly +2 more sources
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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Numerical study on multi-buoy-type wave energy converter platform with hydraulic PTO system
OCEANS 2017 - Aberdeen, 2017This study examined the hydrodynamic performance of a multi-point absorber with a hydraulic power take-off (PTO) system and estimated the optimal conditions for maximum power extraction. The multi-point absorber is composed of two hemispheric buoys with a hydraulic PTO system.
Sung-Jae Kim, Weoncheol Koo
exaly +2 more sources