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摩擦纳米发电机(TENG)在低频能量收集方面具有明显的优势，但也面临着输出电能不稳定和能量利用效率低等问题。针对这些问题，研发了一种分轴式自触发摩擦纳米发电机及相应的电源管理电路。该发电机采用分轴式旋转结构，使得发电单元有效收集水波能的同时，触发单元导通开关，结合运用了分形设计思想的电源管理电路，设计出一种自触发式水波能收集装置。实验结果表明发电机每周期输出的电荷量从125 nC提升到1.8μC,使其性能提升了14.4倍。通过电源管理电路能够有效降低负载端的阻抗匹配，更接近微能源电子设备的内阻，使其为电子设备供能时能量利用效率更高。该发电机可以点亮LED小灯泡以及为温湿度传感器持续供电，展现了该装置在河道监测及预警方面巨大的潜力，有效拓展了TENG实际应用范围。
Abstract：Triboelectric nanogenerator(TENG) has obvious advantages in low-frequency energy harvesting, but it also faces problems such as unstable output power and low energy utilization efficiency. To address these problems, a split-axis self-triggered triboelectric nanogenerator and its corresponding power management circuit were designed. The generator uses a split-axis rotating structure, allowing the power generation unit to effectively collect water wave energy while the triggering unit to turn on the switch. Combined with a power management circuit incorporating fractal design idea, a self-triggered wave energy harvesting device was designed. The experimental results show that the generator's output charge per cycle is increased from 125 nC to 1.8 μC, which improves its performance by 14.4 times. The power management circuit can effectively reduce the impedance matching at the load side, which is closer to the internal resistance of the micro-energy electronic devices, so that the energy utilization efficiency is higher when supplying energy to the electronic devices. The generator can light up the LED bulbs as well as continuously supply power to the temperature and humidity sensors, which shows the significant potential of this device in river monitoring and early warning, and effectively expands the practical application range of TENG.
[1] VAROTSOS C A,EFSTATHIOU M N.Has global warming already arrived?[J].Journal of Atmospheric and Solar-Terrestrial Physics,2019,182:31-38.
[2] KAM P M,AZNAR-SIGUAN G,SCHEWE J,et al.Global warming and population change both heighten future risk of human displacement due to river floods[J].Environmental Research Letters,2021,16(4):044026.
[3] PANG L W,LIU L L,ZHOU X,et al.How does natural resource depletion affect energy security risk?New insights from major energy-consuming countries [J].Energy Strategy Reviews,2024,54:101460.
[4] ROCHE L,ARENDT R,BACH V,et al.The social impacts of resource extraction for the clean energy transition:a qualitative news media analysis [J].The Extractive Industries and Society,2023,13:101213.
[5] SHRESTHA A,ALI MUSTAFA A,HTIKE M M,et al.Evolution of energy mix in emerging countries:modern renewable energy,traditional renewable energy,and non-renewable energy [J].Renewable Energy,2022,199:419-432.
[6] LIAN J J,FU Q,CUI L,et al.Offshore renewable energy [J].Journal of Marine Science and Engineering,2024,12(5):749.
[7] TSAI S B.Green energy and applications [J].Applied Sciences,2019,9(15):3088.
[8] FAN F R,TIAN Z Q,WANG Z L.Flexible triboelectric generator [J].Nano Energy,2012,1(2):328-334.
[9] ZHANG C G,HAO Y J,LU X Q,et al.Advances in TENGs for marine energy harvesting and in situ electroche-mistry [J].Nano-Micro Letters,2025,17(1):124.
[10] ZHAO B Q,LONG Y,HUANG T C,et al.Self-adaptive and soft-contact ellipsoidal pendulum-structured triboelectric nanogenerator for harvesting water wave energy [J].Chemical Engineering Journal,2024,489:151399.
[11] ZHANG S,JING Z X,WANG X X,et al.Enhancing low-velocity water flow energy harvesting of triboelectric-electromagnetic generator via biomimetic-fin strategy and swing-rotation mechanism [J].ACS Energy Letters,2022,7(12):4282-4289.
[12] LIU W L,WANG Z,WANG G,et al.Switched-capacitor-convertors based on fractal design for output power management of triboelectric nanogenerator[J].Nature Communications,2020,11(1):1883.
基本信息:
DOI：10.13250/j.cnki.wndz.26010401
中图分类号:TM31
引用信息:
[1]王俊浩,信雨潇,李伟,等.基于水波能的自驱动河道预警装置设计与研究[J].微纳电子技术,2026,63(01):53-61.DOI:10.13250/j.cnki.wndz.26010401.
基金信息:
教育部“春晖计划”合作科研项目(Z2022JL001); 吉林省自然科学基金资助项目(YDZJ202201ZYTS374)
2025-08-19
2025
2025-09-18
2025-09-18
2025
1
2025-12-04
2025-12-04
2025-12-04