用于旋转环境的磁致伸缩振动能量收集方法研究

晚冬; 刘慧芳; 张靖; 赵强

doi:10.13433/j.cnki.1003-8728.20200093

用于旋转环境的磁致伸缩振动能量收集方法研究

doi: 10.13433/j.cnki.1003-8728.20200093

沈阳工业大学机械工程学院，沈阳　110870

基金项目: 国家自然科学基金（51775354）、辽宁省高等学校创新人才支持计划（LCR2018049）、辽宁省教育厅服务地方项目（LFGD2019003）及沈阳市高层次创新人才项目（RC180061）

详细信息

作者简介:
晚冬（1994−），硕士研究生，研究方向为振动能量收集与发电技术，18341347663@163.com

通讯作者:
刘慧芳，副教授，博士，hfliu@sut.edu.cn

中图分类号: TM919
计量
- 文章访问数: 197
- HTML全文浏览量: 68
- PDF下载量: 34
- 被引次数: 0
出版历程
- 收稿日期: 2020-02-27
- 网络出版日期: 2021-04-16
- 刊出日期: 2021-04-16

Research on Magnetostrictive Vibration Energy Harvesting Method for Rotating Environment

College of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China

摘要

摘要: 随着无线传感器的功率消耗从mW级降到了μW级，对无线小功率设备的供电有了新的可能。本文设计并实验了一种新型的基于磁致伸缩材料(铁镓合金)的振动能量收集装置。可以应用于对低频旋转环境中存在的振动进行收集并转换为电能，工作转速范围为0 ~ 150 r/min。搭建了实验平台，进行实验分析。实验结果表明，偏置磁场摆放在最佳位置，添加5 g的自由配重块，系统可以产生最高电压为320 mV，最大功率为232 μW。
- 振动能量收集 /
- 铁镓合金 /
- 低频旋转 /
- 实验分析
Abstract: As the power consumption of wireless sensors decreases from mW to μW level, there is a new possibility for powering wireless low-power devices. In this paper, a new type of vibration energy collection and power generation device is designed and tested based on magnetostrictive material (iron-gallium alloy). The device can be applied to power a wireless autonomous monitoring system for a wind turbine, and its operating frequency bandwidth is defined by the rotation speed of the wind turbine and ranges from 0 to 150 r/min. An experimental platform is set up for experimental study on energy collection and power generation from low frequency rotation vibration. The experimental results show that, when the bias magnetic field is placed in the best position and a 5 g free weight is added, the energy harvesting system can generate a maximum voltage of 320 mV and a maximum power of 232 μW, which can meet the power requirements of low-power wireless transmitters.
- vibration energy harvesting /
- iron-gallium alloy /
- low-frequency rotation vibration /
- experiment analysis

HTML全文

图 1 磁致伸缩振动能量收集与的发电的原理示意图

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图 2 振动收集与发电装置三维模型

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图 3 整体实验平台照片

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图 4 电压随转速变化图

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图 5 偏置磁场对电压的影响变化图

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图 6 配重块摆放形式

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图 7 电压随转速变化图（有固定配重块）

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图 8 电压随转速变化图（有自由配重块）

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图 9 永磁铁摆放形式

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图 10 偏置磁场位置对电压的影响

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图 11 自由配重块质量与电压曲线图

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图 12 功率与负载的关系曲线

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图 13 示波器监测的电压波形

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