环境振动驱动小功率超磁致伸缩发电机理与特性研究

项目名称： 环境振动驱动小功率超磁致伸缩发电机理与特性研究

项目编号： No.51305277

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 刘慧芳

作者单位： 沈阳工业大学

项目金额： 25万元

中文摘要： 针对实现为小功耗电子设备长时间稳定地提供工作电能的迫切需要，项目顺应低碳环保、绿色制造的发展趋势，充分利用超磁致伸缩材料的优异性能，提出一种以磁致伸缩逆效应特性为基础，结合法拉第电磁效应，通过超磁致伸缩材料利用环境振动产生电能的发电方法。课题围绕环境振动驱动小功率超磁致伸缩发电机理与关键技术展开研究。首先分析磁致伸缩逆效应与法拉第电磁效应的耦合映射规律，研究振动发电过程中的电磁、机械耦合规律等发电机理；基于此，采用超磁致伸缩材料设计振动发电装置，研究各主要功能部件的参数优化方法；研究最佳的电能收集存储电路，寻求能量供给的最佳控制略，完成信号调理及放电过程的有效控制；研制环境振动驱动型的小功率超磁致伸缩发电系统。研究成果将为解决小功耗电子设备的电能源问题提供一种有效方法，为提升该类电子设备的应用潜能具有重要意义，也将为超磁致伸缩材料领域的研究带来一个新课题。

中文关键词： 磁致伸缩；振动发电；精密驱动；；

英文摘要： Aiming to the urgent need of providing working power for low power electronic devices stably for a long time, the project comply with the development trend of low-carbon environmental protection and green manufacturing and it propose a power generation method using environmental vibration to generate power by giant magnetostrictive materials. This method makes full use of the excellent performance of giant magnetostrictive materals and it is on the basis of inverse magnetostrictive effect and Faraday effect. The subject carries out research on the mechanism and key technology of small power giant magnetostrictive generator driven by environment vibration. Firstly, the coupled mapping law between inverse magnetostrictive effect and Faraday effect is analyzed. The coupled law of electromagnetic and mechanical and other generator mechanism in the vibration power generation are studied. Based on these, a vibration power generation device is designed using giant magnetostrictive materials and the parameter optimization method for major functional parts is studied. The optimal power collection and storage circuits are studied and discharging control strategy is established. Effective control of signal conditioning and discharging process are realized. A small power giant magnetostrictive generator system driven by env

英文关键词： Magnetostriction；Vibration power generation；Precision drive；；