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A hybridized water wave energy harvester with a swing magnetic structure toward intelligent fishing ground
Nano Energy ( IF 16.8 ) Pub Date : 2021-10-16 , DOI: 10.1016/j.nanoen.2021.106631
Fangyan Zheng 1 , Yanggui Sun 1 , Xuelian Wei 2, 3 , Junhuan Chen 2 , Zhihao Yuan 2 , Xu Jin 2 , Li Tao 4 , Zhiyi Wu 2, 3, 5
Affiliation  

Wave energy is one of the most abundant energy sources in the ocean with a vast range of distributions, large-scale reserves, and high energy density. A hybridized triboelectric-electromagnetic energy harvester is demonstrated as an efficient method for harvesting wave energy. Here, a hybridized water wave energy harvester (H-WWEH) is proposed based on a swing magnetic structure with a permanent magnet as the mass block. Benefiting from the swing magnetic structure including a permanent magnet with polyester fiber (PET) friction layer adhered on the surface, the H-WWEH can harvest the water wave energy in any direction. When the H-WWEH is excited by the motion of the water wave, the friction layer will slide on a bottom friction layer to generate electric energy. At the same time, a coil installed under the bottom friction layer is used to scavenge the magnetic energy during the movement of the permanent magnet. By optimizing the length of the swing string, setting the electrode of TENG as Tai Chi shape, and specifying the connection between triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) parallel, the output voltage and current of TENG and EMG can reach 90 V and 0.61 μA, 5.3 V and 6.4 mA with the wave at a low frequency of 1.75 Hz in a simulated water environment. On the basis of the prominent performance, a self-powered wireless wave height alarm system for the intelligent fishing ground is built, and the wireless transmission is spontaneous through the inclination switch. It demonstrates that the H-WWEH has the potential to drive distributed and self-powered marine environment monitoring sensors.



中文翻译:

面向智能渔场的摆磁结构混合水波能量采集器

波浪能是海洋中最丰富的能源之一,分布范围广、储量大、能量密度高。混合摩擦电-电磁能量收集器被证明是一种收集波能的有效方法。在这里,基于以永磁体作为质量块的摆动磁结构提出了一种混合水波能量收集器(H-WWEH)。H-WWEH 受益于摆动磁结构,包括一个永磁体,表面粘附有聚酯纤维 (PET) 摩擦层,可以收集任何方向的水波能量。当水波的运动激发H-WWEH时,摩擦层会在底部摩擦层上滑动以产生电能。同时,安装在底部摩擦层下方的线圈用于清除永磁体运动过程中的磁能。通过优化摆动弦的长度,将TENG的电极设置为太极形状,并指定摩擦纳米发电机(TENG)和电磁发电机(EMG)的并联连接,TENG和EMG的输出电压和电流可以达到90 V 0.61 μA、5.3 V 和 6.4 mA,模拟水环境中低频 1.75 Hz 的波。在突出性能的基础上,搭建了智能渔场自供电无线波高报警系统,通过倾角开关自发无线传输。它表明 H-WWEH 具有驱动分布式和自供电海洋环境监测传感器的潜力。

更新日期:2021-10-24
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