Analytical Research of Buoy Motion and Power Response of the Floating-Type Double-Hinged Wave Energy Converter

DOI

10.2991/ism3e-15.2015.133How to use a DOI?

Abstract

The floating-type double-hinged wave energy converter (WEC) is developed to realize the conversion of wave energy. Based on the linear wave theory and wave-body coupled interaction, the nonlinear coupled equations of the heaving-pitching motions for the buoys are established. Under the condition of entirely linear PTO (power take-off system), the analytical solutions of pitching angles are deduced. Then the amplitude-frequency response characteristics of pitching motion and transfer power are discussed. When the collision chocks are installed in the hydraulic PTO, the time-domain changing laws of pitching angles and angular velocity are calculated by using numerical methods. The results show that the coupling effects are significant for the heaving-pitching motion. With the realistic hydraulic PTO, the average transfer power is about 11.5% lower than that of entirely linear PTO, and pitching motions of buoys show the complex periodic characteristics with wave period.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Biao Li
AU  - Hongtao Gao
PY  - 2015/11
DA  - 2015/11
TI  - Analytical Research of Buoy Motion and Power Response of the Floating-Type Double-Hinged Wave Energy Converter
BT  - Proceedings of the 2015 International Symposium on Material, Energy and Environment Engineering
PB  - Atlantis Press
SP  - 555
EP  - 558
SN  - 2352-5401
UR  - https://doi.org/10.2991/ism3e-15.2015.133
DO  - 10.2991/ism3e-15.2015.133
ID  - Li2015/11
ER  -