TY - JOUR
TI - Numerical evaluation of a two-body point absorber wave energy converter with a tuned inerter
AU - Asai, T
AU - Sugiura, K
T2 - Renewable Energy
AB - To increase the amount of energy captured from a vibrating buoy in the ocean with a simple mechanism, this paper proposes a two-body point absorber wave energy converter (WEC) with a tuned inerter. The tuned inerter mechanism consists of a spring, a linear damping element, and a component called inerter. This mechanism was originally proposed in the field of civil engineering as a structural control device which can absorb energy from vibrating structures effectively by taking advantage of the resonance effect of the inerter part. In addition to this mechanism where a generator is used as the linear damping element, the current of the generator for the power take-off system is controlled based on the algorithms proposed in literature to achieve further improvement of the power generation capability. In this research, a detailed analytical model of the proposed WEC is introduced and developed. Then the power generation performances of full-scale WEC models are assessed through numerical simulation studies using WAMIT software and it is shown that the current-controlled WEC with the proposed mechanism achieves an 88% increase compared to the conventional one for the JONSWAP spectrum with 6 s peak period and 1 m significant wave height.
DA - 2021/06//
PY - 2021
PB - Elsevier
VL - 171
SP - 217
EP - 226
UR - https://www.sciencedirect.com/science/article/pii/S0960148121001889
DO - 10.1016/j.renene.2021.02.021
LA - English
KW - Wave
KW - Point Absorber
KW - Modeling
KW - Full Scale
KW - Control
KW - Performance
ER -