Design of a novel linear permanent magnet vibration energy harvester
Design of a novel linear permanent magnet vibration energy harvester
复制标题
一种新型线性永磁振动能量采集器的设计
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Jianchun Li
中科院分区：
文献类型：
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作者：
Xuezheng Jiang;Yancheng Li;Jianchun Li
本文提出了一种新型的线性管状永磁能量采集器，用于从环境振动中获取能量。所提出的线性永磁能量采集器包括一个与永磁相连接的电机和一个内置两相电磁线圈的开槽定子，以诱导电磁感应将振动转化为有用的电能。建立永磁收割机的磁路模型，分析其扫能参数，并对无量纲几何因素和结构参数进行优化，在给定振动和空间条件下获得最大的能量。为了验证该设计，进行了动态有限元仿真，并与分析结果进行了比较。仿真结果表明，当振动速度的均方根值为0.4 m/s时，所设计的PM收割机能够清除约100 W的直流功率。同时，收获功率随振动速度的增加而增加。
This paper presents a novel linear tubular permanent magnet (PM) energy harvester to scavenge energy from ambient vibrations. The proposed linear PM energy harvester consists of a mover attached with PMs and a slotted stator with build-in two-phase electromagnetic coils to induce the electromagnetic induction for converting vibrations into useful electrical energy. The magnetic circuit model of the PM harvester is built to analyze the parameters about scavenging energy and used to optimize the non-dimensional geometry factors and the structural parameters in order to maximize harvested energy under given vibration and space conditions. To confirm the design, dynamic FE simulations were conducted and compared with the analytical results. Simulation results indicate that the proposed PM harvester is able to scavenge about 100 W DC power when the RMS of vibration velocity equals to 0.4 m/s. Also, the harvested power increases as the vibration velocity increasing.