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http://dx.doi.org/10.5370/KIEE.2017.66.10.1540

A Study of Optimal Driving Method for Piezoelectric Device Applications  

Kim, Yong-Wook (Dept. of Electrical Engineering, Tongmyong University)
Kim, Dong-Hee (Dept. of Electrical Engineering, Chonnam National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.66, no.10, 2017 , pp. 1540-1546 More about this Journal
Abstract
In piezoelectric device applications, it is important to improve a system efficiency because of the low generated power. In this paper, an optimal driving method is proposed to improve a system efficiency for a piezoelectric energy harvesting system. The proposed method considers disappear energy in input capacitors and the converter efficiency according to the input voltage magnitude to minimize energy losses. Experimental results based on various energy generation cases verify that the proposed method significantly improves the system efficiency; the efficiency is approximately 9.97% higher than that of the conventional method.
Keywords
Piezoelectric device; Boost converter; Optimal efficiency operation;
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Times Cited By KSCI : 1  (Citation Analysis)
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