Performance of An Electromagnetic Energy Harvester with Linear and Nonlinear Springs under Real Vibrations
Department of Electronics Design, Mid Sweden University, 85170 Sundsvall, Sweden
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(19), 5456; https://doi.org/10.3390/s20195456
Received: 25 August 2020
/
Revised: 17 September 2020
/
Accepted: 21 September 2020
/
Published: 23 September 2020
(This article belongs to the Special Issue Vibration Energy Harvesting for Wireless Sensors)
The introduction of nonlinearities into energy harvesting in order to improve the performance of linear harvesters has attracted a lot of research attention recently. The potential benefits of nonlinear harvesters have been evaluated under sinusoidal or random excitation. In this paper, the performances of electromagnetic energy harvesters with linear and nonlinear springs are investigated under real vibration data. Compared to previous studies, the parameters of linear and nonlinear harvesters used in this paper are more realistic and fair for comparison since they are extracted from existing devices and restricted to similar sizes and configurations. The simulation results showed that the nonlinear harvester did not generate higher power levels than its linear counterpart regardless of the excitation category. Additionally, the effects of nonlinearities were only available under a high level of acceleration. The paper also points out some design concerns when harvesters are subjected to real vibrations.
View Full-Text
Keywords:
energy harvester; electromagnetic; real vibration; nonlinearities
▼
Show 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
MDPI and ACS Style
Phan, T.N.; Bader, S.; Oelmann, B. Performance of An Electromagnetic Energy Harvester with Linear and Nonlinear Springs under Real Vibrations. Sensors 2020, 20, 5456. https://doi.org/10.3390/s20195456
AMA Style
Phan TN, Bader S, Oelmann B. Performance of An Electromagnetic Energy Harvester with Linear and Nonlinear Springs under Real Vibrations. Sensors. 2020; 20(19):5456. https://doi.org/10.3390/s20195456
Chicago/Turabian StylePhan, Tra N., Sebastian Bader, and Bengt Oelmann. 2020. "Performance of An Electromagnetic Energy Harvester with Linear and Nonlinear Springs under Real Vibrations" Sensors 20, no. 19: 5456. https://doi.org/10.3390/s20195456
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
