压电俘能技术研究现状综述

A review of current situation for piezoelectric energy harvesting

随着微电子、无线网络和MEMS等低耗能产品的应用日益广泛,以化学电池为其主要供能方式存在着诸多弊端,而压电俘能器具有结构简单、不发热、无电磁干扰、无污染和易于实现机构的微小化、集成化等诸多优点,且能满足此类低耗能产品的供能需求而备受关注。综述了压电俘能技术的国内外研究现状。围绕提高压电俘能效率,从压电振子构成形式、能量存储电路和能量存储元件等方面进行了系统的介绍,并对压电俘能技术的发展方向进行了预测。压电俘能技术可应用于导弹引信,海啸预警、桥梁安全监测、石油输油管道监测等重要领域的安全检测装置的自供能系统中,同时也可为无线网络、嵌入式系统和MEMS等低耗能产品的实现无线供能,展现出了压电俘能技术的良好应用前景。

With using micro-electronics、wireless sensors and MEMS more conveniently,electrochemical batteries as power sources have many flaws,however,piezoelectric energy harvestings receive more attention because of their advantages of simple structure,less heat,less electromagnetic interference,no pollution and easily microminiaturizing,and the power generated can easily meet the requirement of lower power-dissipated productions.The carrent state of piezoelectric energy harvesting study was reviewed here.Some important problems were investigated to improve efficiency of power energy harvesting by altering configuration of piezoelectric device circuitry and power storage in order to maximize energy extracted from ambient sources and the development perspective of piezoelectric energy harvesting was studied.Piezoelectric energy harvesting as power source could be used in missile fuze,bridge health scrutiny,ground sea forenotice system and so on.It would also bring fast increasing in systems of micro wireless sensor,integrated systems and self-power MEMS.