A High Precision Lumped Parameter Model for Piezoelectric Energy Harvesters

被引：15

作者：

Baishya, Srimanta ^{[1
]}

Borthakur, Debarun ^{[1
]}

Kashyap, Richik ^{[2
]}

Chatterjee, Amitabh ^{[3
]}

机构：

[1] Natl Inst Technol Silchar, Elect & Commun Engn Dept, Silchar 788010, India

[2] Assam Univ, Elect & Commun Engn Dept, Silchar 788011, India

[3] IIT Guwahati, Elect & Elect Engn Dept, Gauhati 781039, India

来源：

IEEE SENSORS JOURNAL | 2017年 / 17卷 / 24期

关键词：

Amplitude correction factor; cantilever; distribute parameter model; lumped parameter model; piezoelectric energy harvester; resonant frequency; tip mass; unified correction factor; GENERATOR; OUTPUT;

D O I：

10.1109/JSEN.2017.2764165

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a high precision lumped parameter model for efficient prediction of the resonant frequencies and coupling of cantilevered piezoelectric energy harvesters in absence of tip mass. Correction factors for the existing lumped parameter model are derived by comparing with the highly accurate distributed parameter model of cantilevered harvesters. First, a correction factor is defined for uncoupled lumped parameter model to predict the natural frequencies. Finally, the coupled lumped parameter model is subjected to a unified correction factor to accurately predict both the resonant frequencies and electrical outputs. The unified correction factor is derived by unifying the frequency and amplitude correction factors. The calculated outputs are in good agreement with the experimental results available in the literature.

引用

页码：8350 / 8355

页数：6

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