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Proceedings Paper

Impedance modeling of electromagnetic energy harvesting system using full-wave bridge rectifier
Author(s): Junrui Liang; Cong Ge; Yi-Chung Shu
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Paper Abstract

In the conventional model of general vibration energy harvesters, the harvesting effect was regarded as only the electrically induced damping. Such intuition has overlooked the detailed dynamic contribution of practical power conditioning circuits. This paper presents an improved impedance model for the electromagnetic energy harvesting (EMEH) system considering the detailed dynamic components, which are introduced by the most extensively used full-wave bridge rectifier. The operation of the power electronics is studied under harmonic excitation. The waveforms, energy cycles, and impedance picture are illustrated for showing more information about the EMEH system. The theoretical prediction on harvesting power can properly describe the changing trend of the experimental result.

Paper Details

Date Published: 11 April 2017
PDF: 10 pages
Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 101642N (11 April 2017); doi: 10.1117/12.2259870
Show Author Affiliations
Junrui Liang, ShanghaiTech Univ. (China)
Cong Ge, ShanghaiTech Univ. (China)
Yi-Chung Shu, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 10164:
Active and Passive Smart Structures and Integrated Systems 2017
Gyuhae Park, Editor(s)

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