Layout optimization of wave energy converter arrays consisting of floating truncated cylinders with five degrees of freedom in regular and irregular waves

Journal Article

Title: Layout optimization of wave energy converter arrays consisting of floating truncated cylinders with five degrees of freedom in regular and irregular waves

Author:

Kang, Y.; Zeng, X.; Cui, Z.; Chen, J.

Publication Date:

March 15, 2026

Journal:

Renewable Energy

Volume:

260

Pages:

125203

Publisher:

Elsevier

Affiliation:

University of Chinese Academy of Sciences

Technology:

Wave, Point Absorber

Collection Method:

Modeling

Engineering:

Array Effects, Control

Language:

English

Document Access

Website:

External Link

Citation

APA
BibTex
RIS

Kang, Y.; Zeng, X.; Cui, Z.; Chen, J. (2026). Layout optimization of wave energy converter arrays consisting of floating truncated cylinders with five degrees of freedom in regular and irregular waves. Renewable Energy, 260, 125203. https://doi.org/doi.org/10.1016/j.renene.2026.125203

@article{Kang-2026-40250,
author = {Kang, Y and Zeng, X and Cui, Z and Chen, J},
title = {Layout optimization of wave energy converter arrays consisting of floating truncated cylinders with five degrees of freedom in regular and irregular waves},
journal = {Renewable Energy},
year = {2026},
month = {mar},
publisher = {Elsevier},
volume = {260},
pages = {125203},
doi = {doi.org/10.1016/j.renene.2026.125203},
url = {https://www.sciencedirect.com/science/article/pii/S0960148126000285},
keywords = {Wave, Point Absorber, Modeling, Array Effects, Control},
}

Export Citation to BibTex

TY - JOUR
TI - Layout optimization of wave energy converter arrays consisting of floating truncated cylinders with five degrees of freedom in regular and irregular waves
AU - Kang, Y
AU - Zeng, X
AU - Cui, Z
AU - Chen, J
T2 - Renewable Energy
AB - This paper develops a new oscillating buoy type wave energy converter, named 5-DOF WEC, which oscillates and extracts energy with five degrees of freedom (DOF) by setting the power take-off (PTO) system in each direction. Compared with the 1-DOF WEC, which only oscillates and extracts energy in the heave direction, the 5-DOF WEC can greatly enhance the energy extraction efficiency of the arrays, particularly in the high-frequency region. The performance of the WEC array is highly dependent on the geometric dimensions, PTO characteristics, and spatial position of each buoy. For the different incident angles and cylinder spacings, the energy extraction performances of the WEC array in regular and irregular waves are examined. The optimal layouts of the 5-DOF WEC arrays under the action of regular waves are given using the multi-level optimization method proposed by Kang et al. (2024) [1]. Then, the layout optimization problems of 1-DOF and 5-DOF WEC arrays in unidirectional irregular waves and multidirectional real wave scenarios are investigated. The results show that arranging the array linearly and perpendicular to the wave propagation direction has higher energy capture performance in unidirectional irregular waves and multidirectional real wave scenarios.
DA - 2026/03//
PY - 2026
PB - Elsevier
VL - 260
SP - 125203
UR - https://www.sciencedirect.com/science/article/pii/S0960148126000285
DO - doi.org/10.1016/j.renene.2026.125203
LA - English
KW - Wave
KW - Point Absorber
KW - Modeling
KW - Array Effects
KW - Control
ER -

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Abstract

This paper develops a new oscillating buoy type wave energy converter, named 5-DOF WEC, which oscillates and extracts energy with five degrees of freedom (DOF) by setting the power take-off (PTO) system in each direction. Compared with the 1-DOF WEC, which only oscillates and extracts energy in the heave direction, the 5-DOF WEC can greatly enhance the energy extraction efficiency of the arrays, particularly in the high-frequency region. The performance of the WEC array is highly dependent on the geometric dimensions, PTO characteristics, and spatial position of each buoy. For the different incident angles and cylinder spacings, the energy extraction performances of the WEC array in regular and irregular waves are examined. The optimal layouts of the 5-DOF WEC arrays under the action of regular waves are given using the multi-level optimization method proposed by Kang et al. (2024) [1]. Then, the layout optimization problems of 1-DOF and 5-DOF WEC arrays in unidirectional irregular waves and multidirectional real wave scenarios are investigated. The results show that arranging the array linearly and perpendicular to the wave propagation direction has higher energy capture performance in unidirectional irregular waves and multidirectional real wave scenarios.