OPTIMIZATION STUDY OF ENERGY ACQUISITION OF HORIZONTAL PENDULUM WAVE ENERGY CONVERTER BASED ON PRESCRIBED EXCITATION MODEL

Wang Jiazhi; Shi Hongda; Cao Feifei; Jiang Xiaoqiang; Xu Yingzhou

doi:10.19912/j.0254-0096.tynxb.2023-2084

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (4) : 677-684. DOI: 10.19912/j.0254-0096.tynxb.2023-2084

OPTIMIZATION STUDY OF ENERGY ACQUISITION OF HORIZONTAL PENDULUM WAVE ENERGY CONVERTER BASED ON PRESCRIBED EXCITATION MODEL

Wang Jiazhi¹, Shi Hongda^1-3, Cao Feifei^1-3, Jiang Xiaoqiang¹, Xu Yingzhou¹

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Abstract

A horizontal parametric pendulum wave energy converter is used as a research object to study the motion and energy acquisition law of the device under multiple degrees of freedom through model test, numerical simulation and prescribed excitation model. The average power of the device in the moored state with multiple degrees of freedom motion appears two peaks. The first peak is related to the nature of the outer float itself and the second peak is affected by the mooring. In this paper, taking the PTO damping form, the shape of the outer floater, and the mooring system as the research variables, and the study shows that the linear damping performance is better than the constant value damping in the sea area of Zhaitang Island. when the outer flouting body is hemispherical or hemispherical, the device obtains better performance. The influence of mooring axial stiffness and linear density on the second peak of energy acquisition is significant.

Key words

wave energy conversion / energy absorption / mooring / buoy / pendulum / prescribed excitation model

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Wang Jiazhi, Shi Hongda, Cao Feifei, Jiang Xiaoqiang, Xu Yingzhou. OPTIMIZATION STUDY OF ENERGY ACQUISITION OF HORIZONTAL PENDULUM WAVE ENERGY CONVERTER BASED ON PRESCRIBED EXCITATION MODEL[J]. Acta Energiae Solaris Sinica. 2025, 46(4): 677-684 https://doi.org/10.19912/j.0254-0096.tynxb.2023-2084

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