首页|Self-powered wireless environmental monitoring system for in-service bridges by galloping piezoelectric-triboelectric hybridized energy harvester

Self-powered wireless environmental monitoring system for in-service bridges by galloping piezoelectric-triboelectric hybridized energy harvester

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The energy harvesting technology for the ubiquitous natural wind enables a desirable solution to the issue of distributed sensors in the bridge environmental sensing Internet of Things(IoT)system being restricted to conventional energy supply.In this work,a self-powered system based on a compact galloping piezoelectric-triboelectric energy harvester(GPTEH)is developed to achieve efficient wind energy harvesting.The GPTEH is constructed on the prototype of a cantilever structure with piezoelectric macro-fiber composite(MFC)sheets and a rectangular bluff body with triboelectric nanogenerators(TENGs).Through a special swing-type structural design with iron blocks inside the bluff body,the GPTEH exhibits preferable aerodynamic behavior and excellent energy conversion efficiency,compared to conventional cantilever kind of piezoelectric wind energy harvester(PWEH).The GPTEH also demonstrates the capability of high output power density(PEH of 23.65 W m-2 and TENG of 1.59 Wm-2),superior response wind speed(about 0.5 ms-1),and excellent long-term stability(over 14000 cyclic tests).Furthermore,a power management system is developed to efficiently utilize the output energy from GPTEH to power the sensors and wirelessly transmit environmental data to the terminals.The proposed GPTEH-powered system exhibits a great potential for the bridge environmental monitoring and IoT technologies.

self-poweredhybrid nanogeneratortriboelectric nanogeneratormacro-fiber compositewireless environmental moni-toring system

HUANG KangXu、WANG XiaoFei、WANG Li、ZHOU YuHui、LIU FuHai、CHANG ShiYuan、ZHU JunTao、ZHOU YuXuan、ZHANG He、LUO JiKui

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College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China

Anhui Transport Consulting & Design Institute Co.,Ltd.,Hefei 230088,China

College of Electronics & Information,Hangzhou Dianzi University,Hangzhou 310018,China

Center for Balance Architecture,Zhejiang University,Hangzhou 310058,China

College of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China

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National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaZhejiang Provincial Natural Science Foundation for Distinguished Young ScientistsKey Research Project of Zhejiangthe"Leading Goose"R&D Program of Zhejiang ProvinceZhejiang University Education Foundation Global Partnership Fund

2020YFA07117005212280111925206U22A20254U23A2065951978609LR20E080003LD22E0300072022C01136100000-11320

2024

10.1007/s11431-023-2568-0

中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子：1.056
ISSN：1674-7321
年,卷(期)：2024.67(5)