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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (11): 2038-2045    DOI: 10.3785/j.issn.1008-973X.2013.11.023
电气工程、电信技术     
 基于多个压电换能器的接口电路
霍新新1,2,褚金奎1,2,韩冰峰1,2,姚斐1,2
1.大连理工大学 精密与特种加工教育部重点实验室,辽宁 大连 116023；
2.辽宁省微纳米技术及系统重点实验室,辽宁 大连 116023　　
Research on interface circuits of multiple piezoelectric generators
HUO Xin-xin1,2, CHU Jin-kui1,2,HAN Bing-feng1,2, YAO Fei1,2
1. Key Laboratory for Dalian University of Technology Precision & Non-traditional Machining of
Ministry of Education, Dalian University of Technology, Dalian 116023, China|2.Key Laboratory for Micro/Nano
Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, China
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摘要：

为了探究多压电换能器并联时的能量输出特性,以标准电路和同步电感电路(SSHI)为基础提出4种多压电换能器并联电路,对4种电路下的输出功率进行理论推导,并探讨激振力之间相位差对并联输出功率的影响.结果表明：如果多压电换能器采用先并联后整流的标准/SSHI电路,激振力之间相位差对输出功率有影响,并且最终的并联输出功率由相位差、激振频率及接口电路共同决定.如果多压电换能器采用先整流后并联的标准/SSHI电路,激振力之间相位差对并联输出功率没有影响,输出功率由激振频率和接口电路决定.对比4种接口电路,采用先整流后并联的SSHI接口电,输出功率峰值较高、带宽较宽,在4种电路中综合效果更好.
关键词： 压电换能器;  标准电路;  SSHI电路;  并联;  相位差    
Abstract:

To explore the output power performance of multiple piezoelectric generators which are connected in parallel mode and work cooperatively, four kinds of parallel-connection interface circuits for multiple piezoelectric generators were proposed based on the standard circuit and the synchronized switch harvesting on inductor (SSHI) circuit. The output power in these four kinds of interface circuits was theoretically derived and the influence on it by the phase difference among the exciting forces was studied. The results show that for piezoelectric generators connected in parallel mode, if the piezoelectric generators are rectified after parallel connection and link with standard/ SSHI circuit, the phase difference between exciting forces has effect on the output power, and the output power is decided by the phase difference,the interface circuit and the excitation frequency. If piezoelectric generators are connected in parallel after rectifier bridges and link with standard/SSHI circuit, the phase difference has no effect on the output power and in this situation, the output power is decided by both the interface circuit and the excitation frequency. Compared among the four kinds of interface circuits, a system consists of multiple piezoelectric generators which are connected in parallel after rectifier bridges and link with SSHI circuit has higher output power and wider frequency bandwidth, so its comprehensive results are more acceptable．
Key words: piezoelectric generator    standard circuit    SSHI interface circuit    parallel    phase difference
出版日期: 2013-12-05
:     
基金资助:

国家自然科学基金资助项目（51175056）；国家“973”重点基础研究计划资助项目（2011CB302105）.
通讯作者: 褚金奎，男，教授、博导.     E-mail: chujk@dlut.edu.cn
作者简介: 霍新新（1988-）男，硕士生，从事新能源技术研究. E-mail：huoxinxin1122@126.com
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引用本文:

霍新新,褚金奎,韩冰峰,姚斐.  基于多个压电换能器的接口电路[J]. J4, 2013, 47(11): 2038-2045.

HUO Xin-xin, CHU Jin-kui,HAN Bing-feng, YAO Fei. Research on interface circuits of multiple piezoelectric generators. J4, 2013, 47(11): 2038-2045.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.11.023    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I11/2038

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