A mechanical solution of self-powered SSHI interface for piezoelectric energy harvesting systems

doi:10.1117/12.2084208

	A mechanical solution of self-powered SSHI interface for piezoelectric energy harvesting systems
	Liu, Haili; Ge, Cong; Liang, Junrui
	2015
会议录名称	ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2015
卷号	9431
发表状态	已发表
DOI	10.1117/12.2084208
摘要	The synchronized switch interface circuits, e. g., synchronized switch harvesting on inductor (SSHI), can significantly enhance the harvesting capability of piezoelectric energy harvesting (PEH) systems. In these power conditioning circuits, the piezoelectric voltage is flipped with respect to a bias voltage at the instants when the piezoelectric element is at maximum deforming positions. Voltage peak detection and in time switching action are required for implementing these functions. The state-of-the-art solutions are mostly realized by electronic methods, i. e., both functions are carried out by electronic comparators and electronic switches. However, the peak detectors usually introduce switching phase lag; while the electronic switches function only when the vibration magnitude is above a threshold level. When the vibration is lower than such threshold, the SSHI interface shows no improvement. In this paper, we propose a mechanical solution for constructing the self-powered SSHI interface for PEH systems. This technique is realized by installing a low cost vibration sensor switch (VSS) at the free end of a piezoelectric cantilever. It senses the maximum deflecting places of the cantilever and automatically carries out synchronized switching actions. Compared to the existing electronic solutions, this mechanical solution is compact and has relative low switching threshold. Therefore, with this self-powered solution, the advantage of SSHI interface circuit can be sufficiently released, in particular, at low level vibration. Experiment shows the feasibility of this mechanical solution. The advantages and limitations are also discussed in this paper.
关键词	piezoelectric energy harvesting synchronized switch interface circuits self-powered SSHI vibration sensor switch
出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
会议地点	San Diego, CA, United states
收录类别	CPCI ; EI
语种	英语
WOS研究方向	Engineering ; Materials Science ; Optics
WOS类目	Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Optics
WOS记录号	WOS:000357640200041
出版者	SPIE-INT SOC OPTICAL ENGINEERING
EI入藏号	20154901645782
EI主题词	Energy harvesting ; Integrated control ; Logic circuits ; Nanocantilevers ; Piezoelectricity ; Semiconductor switches ; Switching ; Synchronization ; Ventilation exhausts
EI分类号	Energy Conversion Issues:525.5 ; Pipe, Piping and Pipelines:619.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Logic Elements:721.2 ; Control Systems:731.1 ; Nanotechnology:761 ; Solid State Physics:933 ; Systems Science:961
WOS关键词	CONVERSION
原始文献类型	Proceedings Paper
引用统计	正在获取...
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2326
专题	信息科学与技术学院信息科学与技术学院_PI研究组_梁俊睿组信息科学与技术学院_硕士生
通讯作者	Liang, Junrui
作者单位	ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 200031, Peoples R China
第一作者单位	信息科学与技术学院
通讯作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Liu, Haili,Ge, Cong,Liang, Junrui. A mechanical solution of self-powered SSHI interface for piezoelectric energy harvesting systems[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2015.