OPTIMAL DESIGN OF MHD WAVE GENERATOR UNDER REAL SEA CONDITIONS

Liu Huabing; Zhao Lingzhi; Zhu Peiqi; Shi Yutao; Peng Aiwu

doi:10.19912/j.0254-0096.tynxb.2020-0845

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (4) : 498-505. DOI: 10.19912/j.0254-0096.tynxb.2020-0845

Topics on Key Technologies for Safety of Electrochemical Energy Storage Systems and Echelon Utilization of Decommissioned Power Batteries

OPTIMAL DESIGN OF MHD WAVE GENERATOR UNDER REAL SEA CONDITIONS

Liu Huabing^1,2, Zhao Lingzhi^1,2, Zhu Peiqi^1,2, Shi Yutao^1,2, Peng Aiwu^1,2

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Abstract

Taking the point absorption wave power generation device as an example, considering the motion response characteristics of floating body and damping plate in the heave direction and the power generation characteristics of MHD generator, genetic algorithm is used to optimize the structural parameters of MHD generator under different regular wave conditions, and the power generation efficiency of the device under different average effective wave heights is obtained when the device is placed near an island in the South China Sea. Then, according to the frequency distribution law of the wave state of the island, the annual power generation is calculated. When the annual power generation is the largest, the structural parameters of the MHD generator are optimal. Compared with the traditional structural parameter optimization based on the main wave condition, the influence of the frequency of different average significant wave height on the output power of the device is fully considered. It has important guiding significance for the optimal design of MHD wave power generation device and the evaluation of economic benefits under real sea conditions. At the same time, the start-up wave height of MHD wave power generation device is lower than the industry standard of 1.0 m, and the start-up performance is excellent, which increases the effective utilization hours of waves, and its extremely strong low sea state response ability is especially suitable for China′s low sea conditions.

Key words

magnetohydrodynamic / wave power / genetic algorithms / power generation / structural parameter

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Liu Huabing, Zhao Lingzhi, Zhu Peiqi, Shi Yutao, Peng Aiwu. OPTIMAL DESIGN OF MHD WAVE GENERATOR UNDER REAL SEA CONDITIONS[J]. Acta Energiae Solaris Sinica. 2022, 43(4): 498-505 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0845

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