RESEARCH ON CONTROL OF DIRECT DRIVE WAVE POWER GENERATION SYSTEM BASED ON LINEAR HALL

Xia Tao; Zhang Qifu; Sheng Kai; Zhou Yangtao; Huang Lei; Zhang Yangfei

doi:10.19912/j.0254-0096.tynxb.2024-1271

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (11) : 11-19. DOI: 10.19912/j.0254-0096.tynxb.2024-1271

RESEARCH ON CONTROL OF DIRECT DRIVE WAVE POWER GENERATION SYSTEM BASED ON LINEAR HALL

Xia Tao¹, Zhang Qifu¹, Sheng Kai¹, Zhou Yangtao¹, Huang Lei², Zhang Yangfei¹

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Abstract

Aiming at the problem of low efficiency of traditional direct drive wave power generation system due to low wave frequency and speed, and avoiding the influence of seawater corrosion and wind wave impact on the power generation device, a linear Hall based maximum power tracking control strategy for direct drive wave power generation is proposed in this paper. The proposed multi-layer permanent magnet embedded cylinder linear generator has high power density and can effectively prevent the damage of the wave impact, while the linear Hall has strong reliability and resistance to seawater corrosion in wave power generation, and can effectively solve the disadvantages of mechanical sensors and sensorless algorithms in the marine application environment. In addition, according to the principle of mechanical resonance, the maximum tracking strategy of wave energy is proposed, and the wave energy conversion efficiency is improved by controlling the float movement to make it in phase with the wave excitation force. Finally, the control strategy simulation and hardware experiment platform of direct drive wave power generation are built. The experimental results are consistent with the simulation results, verifying the effectiveness of the proposed control strategy.

Key words

wave energy harvesting / power control / power takeoffs / linear motors / linear Hall / maximum efficiency tracking

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Xia Tao, Zhang Qifu, Sheng Kai, Zhou Yangtao, Huang Lei, Zhang Yangfei. RESEARCH ON CONTROL OF DIRECT DRIVE WAVE POWER GENERATION SYSTEM BASED ON LINEAR HALL[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 11-19 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1271

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