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Proceedings Paper

Battery modeling for energy harvesting system
Author(s): Rashi Tiwari; Nathan Buch; Ephrahim Garcia
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Paper Abstract

Piezoelectric energy harvester (PEH) has been commonly considered as energy sources for self-reliant systems or wireless sensor nodes. They mainly consist a vibration source, an energy harvesting circuit and a storage device like battery. Currently, PEH suffers from low efficiency energy harvesting circuit and lack of battery model. Most of the energy harvesting circuits exploits switching techniques with inductor, which require peak detection or zero crossing detection. This paper discusses the balance between the harvested energy and the energy costs of the switching. In addition, a battery model is developed to predict the real-time charge on the battery.

Paper Details

Date Published: 28 March 2011
PDF: 12 pages
Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79760D (28 March 2011); doi: 10.1117/12.880676
Show Author Affiliations
Rashi Tiwari, Cornell Univ. (United States)
Nathan Buch, Cornell Univ. (United States)
Ephrahim Garcia, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 7976:
Electroactive Polymer Actuators and Devices (EAPAD) 2011
Yoseph Bar-Cohen; Federico Carpi, Editor(s)

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