Magnetic coupling gas piezoelectric energy harvester based on turbine structure

被引：0

作者：

Kan J.-W. ^{[1
,2
]}

Yang Z.-M. ^{[1
]}

Wang S.-Y. ^{[1
,2
]}

Huang X. ^{[1
]}

Zhang Z.-H. ^{[1
,2
]}

Liao Y. ^{[1
]}

Wen Y.-J. ^{[1
]}

机构：

[1] Institute of Precision Machinery and Intelligent Structure, Zhejiang Normal University, Jinhua

[2] Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology and Equipment of Zhejiang Province, Jinhua

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2022年 / 35卷 / 05期

关键词：

Gas energy harvest; Indirect excitation; Piezoelectric energy harvester; Rotating magnets; Turbine;

D O I：

10.16385/j.cnki.issn.1004-4523.2022.05.015

中图分类号：

学科分类号：

摘要：

To satisfy the demands of self-powered monitoring system for gas pipe, a magnetic coupling gas piezoelectric turbine energy harvester based on turbine structure is presented. The theoretical model of the energy harvester is established, simulated and analyzed. The prototype is designed and fabricated for test, obtaining the influence of magnets arrangements, proof masses, connections and resistance on the output capability. The results show that multiple appropriate pressures lead to the peak voltage, and the peak value of the main frequency and the position of the frequency division are related to the magnets arrangements. The best pressure and peak output voltage value can be adjusted by proof masses, and the best range of input air pressure can be widened by series or parallel connected PZT oscillators with different proof masses. Besides, there are different optimal loads (40 kΩ, 15 kΩ) to maximize the output power (41 mW, 50 mW) for series or parallel connected piezoelectric oscillator. © 2022, Editorial Board of Journal of Vibration Engineering. All right reserved.

引用

页码：1174 / 1180

页数：6

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