直激式压电风能捕获器的性能分析与实验

阚君武; 张肖逸; 王淑云; 汪彬; 沈亚林; 杨灿; 傅青青

doi:10.3788/OPE.20162405.1087

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直激式压电风能捕获器的性能分析与实验

微纳技术与精密机械 | 更新时间：2020-08-13

- 直激式压电风能捕获器的性能分析与实验
- Performance analysis and test of blowing-type PZT wind energy harvester
- 光学精密工程 2016年24卷第5期页码：1087-1092
- 作者机构：
  
  浙江师范大学精密机械研究所,浙江金华,321004
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.61574128,No.51277166,No.51377147,No.51577173)();国家级大学生创新创业项目(No.2015
- DOI：10.3788/OPE.20162405.1087
  中图分类号： TK83;TN384
- 收稿日期：2015-12-05，
  
  修回日期：2016-01-10，
  
  纸质出版日期：2016-05-25
- 稿件说明：
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阚君武, 张肖逸, 王淑云等. 直激式压电风能捕获器的性能分析与实验[J]. 光学精密工程, 2016,24(5): 1087-1092

KAN Jun-wu, ZHANG Xiao-yi, WANG Shu-yun etc. Performance analysis and test of blowing-type PZT wind energy harvester[J]. Editorial Office of Optics and Precision Engineering, 2016,24(5): 1087-1092
阚君武, 张肖逸, 王淑云等. 直激式压电风能捕获器的性能分析与实验[J]. 光学精密工程, 2016,24(5): 1087-1092 DOI： 10.3788/OPE.20162405.1087.

KAN Jun-wu, ZHANG Xiao-yi, WANG Shu-yun etc. Performance analysis and test of blowing-type PZT wind energy harvester[J]. Editorial Office of Optics and Precision Engineering, 2016,24(5): 1087-1092 DOI： 10.3788/OPE.20162405.1087.

摘要

提出一种由压电梁及其端部附加质量构成的直激式压电风能捕获器。在考虑了压电振子静平衡变形的基础上

根据涡激振动理论建立了柔性压电振子的自激振动理论模型并进行了仿真分析

获得了压电梁厚度比、附加质量及风速对其发电性能的影响规律。结果表明

存在最佳的压电梁厚度比使输出电压、电能及功率最大

电压/电能/功率所对应的最佳厚度比分别为0.5/0.65/0.65。其它参数确定时

存在最佳风速/附加质量使输出电压最大

且最佳风速随附加质量增加而降低、最佳质量随风速增加而降低。制作了风能捕获器样机并进行了试验测试

风速为4.8/7.2/10 m/s时

对应的最佳附加质量及最大电压分别为15/11/7 g和1.9/3.94/6.18 V;风速为10 m/s时

10 g附加质量下的输出电压为0/20 g附加质量下的4.1/1.2倍。结果证明根据实际风速范围确定合理的附加质量可提高发电能力。

Abstract

A blowing-type PZT wind energy harvester consisting of a piezo-cantilever and a proof mass on its free-end was presented. By considering the static balance deformation of the piezoelectric vibrator

an analysis model of a flexible piezoelectric vibrator was established and simulated on the basis of the theory of vortex-induced vibration. Then

the influences of thickness ratios

wind speeds and proof masses on the electrical energy generation were obtained. The results show that there are individual optimal thickness ratios for the generated voltage

energy and the output power to achieve peaks

and the optimal thickness ratios for the generated voltage/energy/power are 0.5/0.65/0.65

respectively. Under other parameters given

there are optimal wind speeds and optimal proof masses for the voltage to achieve their peaks

and the optimal wind speed (proof mass) decreases with the increasing of proof mass (wind speed). A PZT wind energy harvester was fabricated and tested under different proof masses and wind speeds. The experiment results show that the achieved optimal proof masses and optimal voltages under wind speeds of 4.8/7.2/10 m/s are 15/11/7g and 1.9/3.94/6.18 V respectively. In the case of wind speed of 10 m/s

the generated voltages under 10 g proof mass is 4.1/1.2 times those under 0/20g proof mass respectively. It concludes that a reasonable proof mass is helpful for a PZT wind energy harvester to generate more energies.

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Keywords

references

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