STUDY ON ARRAY OPTIMAL ARRANGEMENT OF ENERGY CAPTURE DEVICE IN LOW VELOCITY OCEAN CURRENT

Luo Zhumei; Li Jun; Guo Tao; Yang Tao; Chao Haocheng

doi:10.19912/j.0254-0096.tynxb.2023-1067

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (11) : 561-569. DOI: 10.19912/j.0254-0096.tynxb.2023-1067

STUDY ON ARRAY OPTIMAL ARRANGEMENT OF ENERGY CAPTURE DEVICE IN LOW VELOCITY OCEAN CURRENT

Luo Zhumei¹, Li Jun², Guo Tao³, Yang Tao¹, Chao Haocheng¹

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Abstract

The large-scale deployment of energy converters for harvesting low-velocity ocean current energy by vortex-induced vibration （VIV）is bound to become the inevitable trend to develop low-velocity current energy with large scale. In this study, based on the mathematical model of energy capture of single cylindrical energy conversion device, the mathematical model of energy conversion of multi-cylinder vortex-induced vibration and the mathematical model of optimal layout of multiple energy converter arrays are constructed. In order to improve the array optimization efficiency, aiming at the energy capture power for the first time, the hierarchical optimization algorithm based on genetic algorithm is used to study the optimal layout of multiple energy converters. In the 4 m×4 m sea area, the array arrangements of 2, 3, 4, 5, 6 and 8 energy conversion devices are optimized respectively, and the optimization results of three energy capture devices are verified by fluid-structure interaction numerical simulation method. in order to analyze the variation law of interaction factor q. The results show that the optimization algorithm can effectively optimize the array layout of the multi-cylindrical energy converters, and the optimized arrangement enhances the interaction between the devices in the array and significantly improves the power generation efficiency for the multi-cylindrical energy converter

Key words

ocean current energy / vortex-induced vibration / genetic algorithm / array arrangement / fluid-structure interaction

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Luo Zhumei, Li Jun, Guo Tao, Yang Tao, Chao Haocheng. STUDY ON ARRAY OPTIMAL ARRANGEMENT OF ENERGY CAPTURE DEVICE IN LOW VELOCITY OCEAN CURRENT[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 561-569 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1067

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