Autonomous Tunable Energy Harvester
Ayala Garcia, Ivo, Zhu, Dibin, Tudor, John and Beeby, Steve (2009) Autonomous Tunable Energy Harvester. At PowerMEMS 2009, Washington DC, USA, 01 - 04 Dec 2009. , 49-52.
Download
![[img]](http://eprints.soton.ac.uk/style/images/fileicons/application_pdf.png) |
PDF
Restricted to Registered users only Download (232Kb) | Request a copy |
Description/Abstract
This paper describes the development and implementation of a self powered control system that autonomously adapts the resonant frequency of an electromagnetic vibration-based energy harvester. The tuning mechanism adjusts the harvester’s spring stiffness by varying the axial tensile force between two permanent magnets. The system can adjust the resonant frequency of the harvester from 64 to 78Hz, increasing the operational bandwidth of the harvester from 0.26 to 14Hz, using a single structure. A closed loop control measures the ambient frequency using the phase difference between the harvester output voltage and an accelerometer to adjust the tuning mechanism. The system has a maximum energy consumption of 202mJ.
| Item Type: | Conference or Workshop Item (Speech) |
|---|---|
| Additional Information: | Event Dates: 1-4 December 2009 |
| Divisions: | Faculty of Physical and Applied Science > Electronics and Computer Science > EEE |
| Item ID: | 271101 |
| Date Deposited: | 17 May 2010 10:37 |
| Last Modified: | 02 Mar 2012 14:05 |
| Contributors: | Ayala Garcia, Ivo (Author) Zhu, Dibin (Author) Tudor, John (Author) Beeby, Steve (Author) |
| Date: | November 2009 |
| Additional Information: | Event Dates: 1-4 December 2009 |
| Status: | Unpublished |
| Contact Email Address: | inag07r@ecs.soton.ac.uk |
| Further Information: | Google Scholar |
| URI: | http://eprints.soton.ac.uk/id/eprint/271101 |
Actions (login required)
 |
View Item |
