Analytical modeling for switched damping electromagnetic energy harvester

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

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. Analytical modeling for switched damping electromagnetic energy harvester

• Presentation Conference Type: Conference Paper (published)
• 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
• 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