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Analytical modeling for switched damping electromagnetic energy harvester

Ooi, Beng Lee; Gilbert, James M.; Aziz, A. Rashid A.; Thein, Chung Ket

Authors

Beng Lee Ooi

A. Rashid A. Aziz

Chung Ket Thein



Abstract

© Springer International Publishing Switzerland 2016. This paper presents a novel switched damping method which is able to improve the operational bandwidth of a linear electromagnetic energy harvester. In this system, different damping coefficients, in which values are computed based on the adaptive percentage-varying factor, are electronically switched at different points within the predefined oscillating quadrants. An analytical model of the switching damping device is presented, and the predictive results indicate that a reasonable large range of frequency shifts can be achieved for the proposed output resistances. The outputs for a range of values of internal coil resistance and electromotive force (emf) constant are recorded, and for the proposed system, the frequency can be shifted up to range of +19.50 to −81.46% away from the initial resonance.

Citation

Ooi, B. L., Gilbert, J. M., Aziz, A. R. A., & Thein, C. K. (2016). Analytical modeling for switched damping electromagnetic energy harvester. Lecture Notes in Electrical Engineering, 379, 1-12. https://doi.org/10.1007/978-3-319-30117-4_1

Journal Article Type Conference Paper
Acceptance Date Apr 1, 2015
Online Publication Date Jul 5, 2016
Publication Date Jan 1, 2016
Deposit Date Apr 1, 2022
Journal Lecture Notes in Electrical Engineering
Print ISSN 1876-1100
Electronic ISSN 1876-1119
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 379
Pages 1-12
ISBN 9783319301167
DOI https://doi.org/10.1007/978-3-319-30117-4_1
Keywords Vibration energy harvesting; Electromagnetic induction; Active switching device; Switching damping system; Frequency tuning
Public URL https://hull-repository.worktribe.com/output/3592158