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A phase-synchronized triboelectric-assisted electromagnetic energy harvesting system for omnidirectional low-frequency wave energy

Author

Listed:
  • Pan, Jiaheng
  • Sun, Yanwei
  • Sun, Qichao
  • Jia, Shengyao
  • Wang, Xiudeng
  • Xia, Huakang
  • Li, Qing
  • Xia, Yinshui
  • Shi, Ge

Abstract

Wave energy is an essential component of clean energy and an excellent choice for powering ocean sensors. However, the inherent challenges posed by the low-frequency and multi-directional characteristics of waves limit the effective collection and utilization of wave energy. In this study, we propose a novel solution: a multi-directional, triboelectric-assisted electromagnetic generator driven by an eccentric rod rotation. A motion equation of the eccentric rod rotation under regular wave action was established using an ideal wave model as input. The employed eccentric pendulum is highly sensitive to multi-directional, low-frequency external wave excitations. The gear-driven mechanism ensures synchronized output in both frequency and phase domains. This synchronized characteristic is strategically leveraged to incorporate triboelectric energy as an auxiliary power source, thereby enhancing the system's overall electromagnetic energy conversion efficiency. The experimental results demonstrate that under excitation frequencies within 1 Hz, this multi-source collaborative harvesting device achieves up to 50 % higher output power compared to single electromagnetic energy rectification systems. At the same time, the device can output a maximum of 195 mW DC energy at 1Hz excitation frequency. In addition, the study validated the robust performance of the device in simulated wave environments using a commercial module. This new idea provides a new energy harvesting strategy for ocean sensors.

Suggested Citation

  • Pan, Jiaheng & Sun, Yanwei & Sun, Qichao & Jia, Shengyao & Wang, Xiudeng & Xia, Huakang & Li, Qing & Xia, Yinshui & Shi, Ge, 2025. "A phase-synchronized triboelectric-assisted electromagnetic energy harvesting system for omnidirectional low-frequency wave energy," Energy, Elsevier, vol. 328(C).
    • Handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225021711
    DOI: 10.1016/j.energy.2025.136529
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    References listed on IDEAS

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    1. Wencong He & Wenlin Liu & Jie Chen & Zhao Wang & Yike Liu & Xianjie Pu & Hongmei Yang & Qian Tang & Huake Yang & Hengyu Guo & Chenguo Hu, 2020. "Boosting output performance of sliding mode triboelectric nanogenerator by charge space-accumulation effect," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    2. Liu, Xiaodong & Chen, Zheng & Si, Yulin & Qian, Peng & Wu, He & Cui, Lin & Zhang, Dahai, 2021. "A review of tidal current energy resource assessment in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 145(C).
    3. Zhang, Dahai & Li, Wei & Lin, Yonggang, 2009. "Wave energy in China: Current status and perspectives," Renewable Energy, Elsevier, vol. 34(10), pages 2089-2092.
    4. Bai, Shanming & Cui, Juan & Zheng, Yongqiu & Li, Gang & Liu, Tingshan & Liu, Yabing & Hao, Congcong & Xue, Chenyang, 2023. "Electromagnetic-triboelectric energy harvester based on vibration-to-rotation conversion for human motion energy exploitation," Applied Energy, Elsevier, vol. 329(C).
    5. Chen, Keyu & Gao, Qiang & Fang, Shitong & Zou, Donglin & Yang, Zhengbao & Liao, Wei-Hsin, 2021. "An auxetic nonlinear piezoelectric energy harvester for enhancing efficiency and bandwidth," Applied Energy, Elsevier, vol. 298(C).
    6. Hongfa Zhao & Minyi Xu & Mingrui Shu & Jie An & Wenbo Ding & Xiangyu Liu & Siyuan Wang & Cong Zhao & Hongyong Yu & Hao Wang & Chuan Wang & Xianping Fu & Xinxiang Pan & Guangming Xie & Zhong Lin Wang, 2022. "Underwater wireless communication via TENG-generated Maxwell’s displacement current," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    7. Wencong He & Wenlin Liu & Jie Chen & Zhao Wang & Yike Liu & Xianjie Pu & Hongmei Yang & Qian Tang & Huake Yang & Hengyu Guo & Chenguo Hu, 2020. "Author Correction: Boosting output performance of sliding mode triboelectric nanogenerator by charge space-accumulation effect," Nature Communications, Nature, vol. 11(1), pages 1-1, December.
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