Transient Charging Behavior of an Energy Harvesting System Using SSHI Interface

被引:2
|
作者
Fan, Kangqi [1 ]
Xu, Chunhui [1 ]
机构
[1] Xidian Univ, Sch Elect & Mech Engn, Xian 710071, Peoples R China
基金
中国国家自然科学基金;
关键词
Energy harvesting; mechanical vibration; piezoelectric conversion; SSHI interface; VIBRATION;
D O I
10.1080/10584587.2014.903764
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper proposes an electromechanical model to predict the dynamic characteristics of piezoelectric energy harvesting systems using a nonlinear interface termed synchronous switch harvesting on inductor. The results indicate that the charging voltage increases as the transient charging process proceeds, but the charging rate and efficiency decay over time after their respective peaks have been acquired. The theoretical prediction is in good agreement with the experimental results in terms of the charging voltage. Moreover, a new finding reveals that, the vibration amplitude of a piezoelectric energy harvester decreases as the transient charging process continues.
引用
收藏
页码:1 / 13
页数:13
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