A new energy harvester design for high power output at low frequencies

被引：140

作者：

Dhakar, Lokesh ^{[1
,2
]}

Liu, Huicong ^{[1
]}

Tay, F. E. H. ^{[2
,3
]}

Lee, Chengkuo ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

[2] NUS Grad Sch Integrat Sci & Engn, Singapore 117456, Singapore

[3] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2013年 / 199卷

基金：

新加坡国家研究基金会;

关键词：

Energy harvester (EH); Low frequency; High power output; Composite cantilever beam; Mechanical stopper; Bandwidth widening; UP-CONVERSION; GENERATOR; VIBRATIONS;

D O I：

10.1016/j.sna.2013.06.009

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

The energy harvesters (EHs) using resonant mechanism have encountered two major issues: low output power scavenged from low frequency vibrations, and limited effectiveness of harvesting mechanism in a narrow range near resonant frequency. To overcome these issues, we have proposed a piezoelectric EH comprising a composite cantilever and a proof mass at the free end. The composite cantilever is formed by a piezoelectric bimorph and a polymer beam (soft spring) mechanically connected along the longitudinal direction. Comparing with the resonant frequency of 275 Hz of a standalone piezoelectric bimorph, the composite cantilever design enables the resonant frequency of the EH to be as low as 36 Hz. Moreover, this kind of EH is demonstrated to be 3.12 times and 1.32 times (at 0.1 g) more efficient at output power generation than a standalone piezoelectric bimorph and piezoelectric bimorph with a proof mass at the free end, respectively. With the aid of spring hardening effect, the operating bandwidth (BW) can be increased from 5 Hz to 16.4 Hz. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：344 / 352

页数：9

共 37 条

[1]

Vibration energy harvesting for unmanned aerial vehicles - art. no. 692824 [J].

Anton, Steven R. ;

Inman, Daniel J. .

ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2008, 2008, 6928 :92824-92824

[2]

A piezoelectric bistable plate for nonlinear broadband energy harvesting [J].

Arrieta, A. F. ;

Hagedorn, P. ;

Erturk, A. ;

Inman, D. J. .

APPLIED PHYSICS LETTERS, 2010, 97 (10)

[3]

Energy harvesting vibration sources for microsystems applications [J].

Beeby, S. P. ;

Tudor, M. J. ;

White, N. M. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (12) :R175-R195

[4]

A vibration energy harvesting device with bidirectional resonance frequency tunability [J].

Challa, Vinod R. ;

Prasad, M. G. ;

Shi, Yong ;

Fisher, Frank T. .

SMART MATERIALS AND STRUCTURES, 2008, 17 (01)

[5]

Powering MEMS portable devices - a review of non-regenerative and regenerative power supply systems with special emphasis on piezoelectric energy harvesting systems [J].

Cook-Chennault, K. A. ;

Thambi, N. ;

Sastry, A. M. .

SMART MATERIALS AND STRUCTURES, 2008, 17 (04)

[6]

Bidirectional frequency tuning of a piezoelectric energy converter based on a cantilever beam [J].

Eichhorn, C. ;

Goldschmidtboeing, F. ;

Woias, P. .

JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 2009, 19 (09)

[7]

WiseNET: An ultralow-power wireless sensor network solution [J].

Enz, CC ;

El-Hoiydi, A ;

Decotignie, JD ;

Peiris, V .

COMPUTER, 2004, 37 (08) :62-+

[8]

A Piezoelectric Parametric Frequency Increased Generator for Harvesting Low-Frequency Vibrations [J].

Galchev, Tzeno ;

Aktakka, Ethem Erkan ;

Najafi, Khalil .

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2012, 21 (06) :1311-1320

[9]

Toward energy harvesting using active materials and conversion improvement by nonlinear processing [J].

Guyomar, D ;

Badel, A ;

Lefeuvre, E ;

Richard, C .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2005, 52 (04) :584-595

[10]

Ultra-wide bandwidth piezoelectric energy harvesting [J].

Hajati, Arman ;

Kim, Sang-Gook .

APPLIED PHYSICS LETTERS, 2011, 99 (08)

← 1 2 3 4 →