电子学报Issue(5)：883-889,7.DOI:10.3969/j.issn.0372-2112.2014.05.008
悬臂梁式压电振动能量收集系统输出功率的优化研究
Optimization of the Output Power of Cantilever Piezoelectric Vibration Energy Harvesting
摘要
Abstract
In order to solve the problem of low output power of piezoelectric energy harvesting systems caused by less energy and wide band of ambient vibration ,the method of optimizing the output power of cantilever piezoelectric energy harvesting system with the parallel or series inductance are explored and the influence of different parallel or series inductance to the output power is analyzed .Since the frequency of piezoelectric cantilever is low ,and the matching inductor value is large ,lossless simulated inductor is used in experiment .The theoretical analysis and experiment results show that the maximum output power of resonance can also be obtained at the deviating points with different matching inductance corresponding to different excitation frequencies ,which broadens the operating frequency band and improves the total energy harvesting energy level of the system .When the excitation frequency is 0.8 or 1.2 times of the resonant frequency ,the maximum output power with parallel or series inductance is 26.4 and 18.2 times of that of the purely resistive load .关键词
能量收集/悬臂梁/输出功率/电感Key words
energy harvesting/piezoelectric cantilever/output power/inductor分类
信息技术与安全科学引用本文复制引用
白凤仙,马桂帅,董维杰,孙建忠..悬臂梁式压电振动能量收集系统输出功率的优化研究[J].电子学报,2014,(5):883-889,7.基金项目
辽宁省博士启动基金（No ．20051080）；大连市青年人才基金 （）
