光学精密工程2016，Vol.24Issue(11)：2753-2760,8.DOI:10.3788/OPE.20162411.2753
磁力调频压电电磁复合发电设计与实验
Design and experiment of piezoelectric electromagnetic hybrid broadband generator with magnetic force tuning
摘要
Abstract
This paper focuses on environmental vibration energy harvesting generator to provide low energy for a micro low-power system . A piezoelectric electromagnetic hybrid broadband power generator was developed based on nonlinear magnetic force tuning . The working principle of the power generator was introduced ,and its output power characteristics by the piezoelectric system and electromagnetic system were respectively simulated with the software of ANSYS and Ansoft Maxwell . Then ,an experiment system was set up to test the output power characteristics of the power generator with the magnetic force tuning .Experimental results indicate that the peak output open voltage from the power generator is 5 .8 V at the resonance frequency of 60 Hz ,which is higher than that of the piezoelectric system (5 .5 V)and the electromagnetic system (410 mV)independently .When the natural frequency is adjusted with the magnetic force tuning ,its resonance frequency band expands from 45 to 76 Hz as the piezoelectric cantilever beam moves from - 15 mm to 15 mm in the vertical direction .And the resonance frequency band expands from 51 to 70 Hz similarly as the cantilever beam moves from 0 to 30 mm in the horizontal direction .The experiments show that the simulation analysis results are coincided with that tested results well .It demonstrates that the broadband energy harvesting system can use in low-frequency environment random vibration and can satisfy the demands of low-power of wireless sensor systems .关键词
压电发电/电磁发电/宽频发电装置/磁力调节/微电源/有限元分析Key words
piezoelectric generation/electromagnetic generation/broadband generator/magnetic force tuning/micro power/finite element analysis分类
信息技术与安全科学引用本文复制引用
杜小振,张龙波,于红..磁力调频压电电磁复合发电设计与实验[J].光学精密工程,2016,24(11):2753-2760,8.基金项目
国家自然科学基金资助项目（No ．51105234）；中国博士后科学基金资助项目（No ．2015M582113）；山东省自然科学基金资助项目（No ．2016EEM23）；青岛市黄岛区科技项目小微企业发展和孵化器专项资金资助项目（No ．2014-01-107）和应用研究与公共卫生专项资金资助项目 （）
