文章基本信息

标题：Optimization Analysis of Interface Circuits in Piezoelectric Energy Harvesting Systems
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作者：Shuai Pang ; Wenbin Li ; Jiangming Kan 等
期刊名称：Bulletin of the Institute of Heat Engineering
印刷版ISSN：2083-4187
出版年度：2016
卷号：96
期号：1
页码：1-7
语种：English
出版社：Warsaw University of Technology
摘要：Piezoelectric energy harvesting systems have different interface circuits, including the standard interface circuit, synchronized switch harvesting on inductor circuit, and synchronized charge extraction circuit. The comparison of an interface circuit with a different interface circuit to determine which is better has been widely investigated. However, for a certain interface circuit, how the parameters can be optimized to increase efficiency in energy collection has rarely been investigated. To improve the energy harvesting efficiency of a certain interface circuit in a fast and convenient manner, three interface circuits, which are the circuits to be optimized, were mainly introduced. A simulation method to optimize the circuit for energy collection was used. The simulation method was implemented in Pspice and includes parametric, sensitivity, and optimization analyses. The output power of parallel synchronized switch harvesting on the inductor circuit can be increased from 20.13 mW to 25.23 mW, and the output power of the synchronized charge extraction circuit can be increased from 11.98 mW to 19.85 mW. Results show that the energy collection performance can be improved by using the optimization simulation method.