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

HUANG KangXu ¹WANG XiaoFei ²WANG Li ¹ZHOU YuHui ¹LIU FuHai ³CHANG ShiYuan ³ZHU JunTao ¹ZHOU YuXuan ¹ZHANG He ⁴LUO JiKui⁵

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作者信息

1. College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China
2. Anhui Transport Consulting & Design Institute Co.,Ltd.,Hefei 230088,China
3. College of Electronics & Information,Hangzhou Dianzi University,Hangzhou 310018,China
4. College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Center for Balance Architecture,Zhejiang University,Hangzhou 310058,China
5. College of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China
折叠

Abstract

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.

Key words

self-powered/hybrid nanogenerator/triboelectric nanogenerator/macro-fiber composite/wireless environmental moni-toring system

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基金项目

National Key R&D Program of China(2020YFA0711700)

National Natural Science Foundation of China(52122801)

National Natural Science Foundation of China(11925206)

National Natural Science Foundation of China(U22A20254)

National Natural Science Foundation of China(U23A20659)

National Natural Science Foundation of China(51978609)

Zhejiang Provincial Natural Science Foundation for Distinguished Young Scientists(LR20E080003)

Key Research Project of Zhejiang(LD22E030007)

the"Leading Goose"R&D Program of Zhejiang Province(2022C01136)

Zhejiang University Education Foundation Global Partnership Fund(100000-11320)

出版年

2024

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

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