No-load Analysis of Permanent Magnet Spring Nonlinear Resonant Generator for Human Motion Energy Harvesting

摘要：

With the structure of permanent magnet (PM) spring, composed of one fixed end magnet and one moving magnet, a nonlinear resonant electromagnetic generator is designed for harvesting energy from human wrist by vertical shaking, which can be used as an emergency power source for portable electronic products, such as cell phone. The magnetic field distribution is analyzed by finite element method (FEM). Generator model is built under no-load condition and the parasitic damping factor is evaluated indirectly. The model is amended through reasonable hypothesis of collision and validated by the measured results, which can be used for further with-load analysis and generator optimization.

关键词： PM spring energy harvesting FEM parasitic damping factor

作者: Kai Sun Guoqiang Liu Xiaoyu Xu

作者单位: Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China Graduate University Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China

会议类型: 国际会议

会议名称: 2011 3nd International Conference on Mechanical and Electronics Engineering(2011年第三届机械与电子工程国际会议 ICMEE2011)

会议地点: 合肥

会议语种:英文

页码: 2778-2782

在线出版日期: 2011-09-23（万方平台首次上网日期，不代表论文的发表时间）