Numerical calculation and model experiment of a novel external buoy type wave energy converter for navigation lighted buoys numerical study of a novel wave energy converter

The purpose of this study is to determine the optimal parameters for a control strategy of an oscillating body type wave energy converter (WEC) for a WEC development and demonstration project in Japan. We plan to use a reactive control strategy for calm sea states, because wave heights in the seas near around Japan is about 1 m in summer. We also developed a combined and tuned control strategy with both reactive and resistive controls, in which the control parameters are changed to sea states. The proposed control system achieves both better performance and safer operation. In this numerical study, we determine the control parameters for the sea states by the time-domain simulation using the Newmark–β method.

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Numerical study on multi-buoy-type wave energy converter platform with hydraulic PTO system

OCEANS 2017 - Aberdeen ◽

10.1109/oceanse.2017.8084920 ◽

2017 ◽

Author(s):

Sung-Jae Kim ◽

Weoncheol Koo ◽

Min-Jae Shin

Keyword(s):

Wave Energy ◽

Numerical Study ◽

Wave Energy Converter ◽

Energy Converter ◽

Type Wave

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Experimental and numerical study of hydrodynamic responses of a new combined monopile wind turbine and a heave-type wave energy converter under typical operational conditions

Ocean Engineering ◽

10.1016/j.oceaneng.2018.03.090 ◽

2018 ◽

Vol 159 ◽

pp. 1-8 ◽

Cited By ~ 9

Author(s):

Nianxin Ren ◽

Zhe Ma ◽

Tianhui Fan ◽

Gangjun Zhai ◽

Jinping Ou

Keyword(s):

Wind Turbine ◽

Wave Energy ◽

Numerical Study ◽

Wave Energy Converter ◽

Energy Converter ◽

Operational Conditions ◽

Type Wave

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A Study on Development of the Performance Analysis Method of the Floating OWC-WEC Using the MPS Method

Volume 6: Ocean Space Utilization ◽

10.1115/omae2015-42049 ◽

2015 ◽

Cited By ~ 1

Author(s):

Yutaro Sasahara ◽

Mitsuhiro Masuda ◽

Kiyokazu Minami

Keyword(s):

Wave Energy ◽

Two Phase Flow ◽

Wave Energy Converter ◽

Response Analysis ◽

Phase Flow ◽

Energy Converter ◽

Wave Impact ◽

Two Phase ◽

Mps Method ◽

Type Wave

When concrete examination towards utilization is needed, it is necessary to estimate the safety and the performance of a floating Oscillation Water Column (OWC)-type wave energy converter under abnormal oceanographic phenomenon such as large waves, wave impact force, deck wetness and complex motion of mooring system. Therefore, to choose a proper numerical method is important. This present paper describes a fundamental study about estimation of safety and performance of floating OWC-type wave energy converter using the two-phase flow MPS method. In this research, firstly, new algorithm is installed in order to solve problems of the two-phase flow MPS method. Secondly, applicability to an response analysis of a wharf installation type OWC-WEC of the improved MPS method is examined by wave pressure acting to the OWC-WEC and response in the air chamber of the OWC-WEC.

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