传感技术学报2012，Vol.25Issue(9)：1268-1273,6.DOI:10.3969/j.issn.1004-1699.2012.09.018
低频振动能量收集装置的设计和数值模拟
Design and Numerical Simulations of Low-Frequency Vibration Energy Harvesting Device
摘要
Abstract
A new vibration energy harvesting device which is adept at working under the condition of low-frequency vibration is designed in this paper. This device is constructed including several closed magnetic circuits which significantly improve the ability of energy harvesting. Meanwhile, the rack structures in the device lead to the change frequency of the coil magnetic field increasing, so that the device can adapt to work with low frequency vibration. After illustrated the structure and principle of the device, a series of numerical simulations using Ansoft Maxwell is introduced. While the static simulations expose the relationship between the relative permeability of ferromagnetic material and the maximum coil magnetic flux density as well as the relationship between the width of air gap and the maximum coil magnetic flux density; the dynamic simulations show the induced voltage and energy dissipation of the device. Based on the data of the simulations, the maximum average power when the frequency of vibration is 1 Hz is calculated, and it is much better than that of the similar device reported in other papers. It demonstrates that the new low-frequency vibration energy harvesting device is able to power for wireless sensor network nodes.关键词
能量收集/低频/数值模拟/电磁式Key words
energy harvesting/ low-frequency/ numerical simulation/ electromagnetic分类
信息技术与安全科学引用本文复制引用
张端,林晨宽,何熊熊..低频振动能量收集装置的设计和数值模拟[J].传感技术学报,2012,25(9):1268-1273,6.基金项目
国家高科技研究发展计划项目(2009AA04Z138) （2009AA04Z138）
国家自然科学基金项目(61074054) （61074054）
浙江大学工业控制技术国家重点实验室开放课题项目(ICT1223) （ICT1223）
