Performance evaluation of different rectifiers for Piezo-electric energy harvesting applications

2011 INTERNATIONAL CONFERENCE ON RECENT ADVANCEMENTS IN ELECTRICAL, ELECTRONICS AND CONTROL ENGINEERING Pub Date : 2011-12-01 DOI:10.1109/ICONRAEECE.2011.6129810

E. A. Grace, S. Rajan, A. A. C. Asis

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引用次数: 7

Abstract

Presently most of the researchers are working towards generating more energy from resources that can be cost effective and do not contribute to climate change or have adverse environmental impacts. One recent promising renewable energy power source is the Piezo-electric Generator (PZG) that extracts energy from mechanical vibrations. Due to low power and wide-range ac output voltage, the Piezo-electric Generator cannot directly support the ac or dc electrical appliances. Hence in most applications, the ac signal produced by this generator needs to be rectified. This paper focuses on the selection of higher efficiency rectifier for increasing the available output power of Piezo-electric Generators that have a high output capacitance. This proposed analysis deals with comparing the efficiency of Diode bridge rectifier, SEPIC rectifier and Resonant rectifier by conducting the simulation studies using PSIM software package. From the simulation results, the rectifier which provides the maximum efficiency is identified and is proposed for energy harvesting applications.

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压电能量收集应用中不同整流器的性能评价

目前，大多数研究人员正致力于从成本效益高、不会导致气候变化或对环境产生不利影响的资源中产生更多的能源。最近一种很有前途的可再生能源是压电发电机(PZG)，它从机械振动中提取能量。由于压电发电机功率小，交流输出电压范围宽，不能直接支持交流或直流电器。因此，在大多数应用中，该发电机产生的交流信号需要进行整流。本文主要研究如何选用高效整流器来提高高输出电容的压电发电机的有效输出功率。本文利用PSIM软件包对二极管桥式整流器、SEPIC整流器和谐振整流器的效率进行了仿真研究。根据仿真结果，确定了效率最高的整流器，并提出了用于能量收集的方案。

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2011 INTERNATIONAL CONFERENCE ON RECENT ADVANCEMENTS IN ELECTRICAL, ELECTRONICS AND CONTROL ENGINEERING

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