Next Article in Journal
Electroosmotic Flow in a Rough Nanochannel with Surface Roughness Characterized by Fractal Cantor
Next Article in Special Issue
Potential of Piezoelectric MEMS Resonators for Grape Must Fermentation Monitoring
Previous Article in Journal
Modeling the Influence of Tool Deflection on Cutting Force and Surface Generation in Micro-Milling
Previous Article in Special Issue
Modeling and Identification of the Rate-Dependent Hysteresis of Piezoelectric Actuator Using a Modified Prandtl-Ishlinskii Model
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Micromachines 2017, 8(6), 189; doi:10.3390/mi8060189

Parametric Analysis and Experimental Verification of a Hybrid Vibration Energy Harvester Combining Piezoelectric and Electromagnetic Mechanisms

1
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
2
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
3
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China
*
Author to whom correspondence should be addressed.
Received: 11 May 2017 / Revised: 12 June 2017 / Accepted: 15 June 2017 / Published: 18 June 2017
(This article belongs to the Special Issue Piezoelectric MEMS)
View Full-Text   |   Download PDF [6066 KB, uploaded 18 June 2017]   |  

Abstract

Considering coil inductance and the spatial distribution of the magnetic field, this paper developed an approximate distributed-parameter model of a hybrid energy harvester (HEH). The analytical solutions were compared with numerical solutions. The effects of load resistances, electromechanical coupling factors, mechanical damping ratio, coil parameters and size scale on performance were investigated. A meso-scale HEH prototype was fabricated, tested and compared with a stand-alone piezoelectric energy harvester (PEH) and a stand-alone electromagnetic energy harvester (EMEH). The peak output power is 2.93% and 142.18% higher than that of the stand-alone PEH and EMEH, respectively. Moreover, its bandwidth is 108%- and 122.7%-times that of the stand-alone PEH and EMEH, respectively. The experimental results agreed well with the theoretical values. It is indicated that the linearized electromagnetic coupling coefficient is more suitable for low-level excitation acceleration. Hybrid energy harvesting contributes to widening the frequency bandwidth and improving energy conversion efficiency. However, only when the piezoelectric coupling effect is weak or medium can the HEH generate more power than the single-mechanism energy harvester. Hybrid energy harvesting can improve output power even at the microelectromechanical systems (MEMS) scale. This study presents a more effective model for the performance evaluation and structure optimization of the HEH. View Full-Text
Keywords: hybrid energy harvester; piezoelectric; electromagnetic; approximate distributed-parameter model; parametric analysis hybrid energy harvester; piezoelectric; electromagnetic; approximate distributed-parameter model; parametric analysis
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Xu, Z.; Shan, X.; Yang, H.; Wang, W.; Xie, T. Parametric Analysis and Experimental Verification of a Hybrid Vibration Energy Harvester Combining Piezoelectric and Electromagnetic Mechanisms. Micromachines 2017, 8, 189.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top