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A Fast Spotting Strategy of Optimal Frequency in Wireless Power Transfer

Sabriansyah Rizqika Akbar and Ichijo Hodaka
Department of Materials and Informatics, Interdisciplinary Graduate School of Agriculture and engineering, University of Miyazaki, Miyazaki, Japan

Abstract—One of the most common questions in the Wireless Power Transfer (WPT) system is how to transfer much power over coils driven by the AC power source. This paper concerns how to determine the frequency of AC power source optimal to maximum WPT. Although it is theoretically possible to determine the optimal frequency by wide range frequency sweep, it is practically important to spot it in a few trials of frequency. This paper proposes a frequency spotting strategy using a square wave input power signal. The strategy avoids a long time-consuming sweeping process with knowledge of response by square wave input. The Automatic Multiscale-based Peak Detection (AMPD) algorithm is applied to select the initial peak finding on every data sample increment iteration to further analysis to find the set of peak patterns by calculating error parameters.
Index Terms—Wireless power transfer, optimal frequency, square wave input, AMPD

Cite: Sabriansyah Rizqika Akbar and Ichijo Hodaka, "A Fast Spotting Strategy of Optimal Frequency in Wireless Power Transfer," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 9, No. 4, pp. 242-246, July 2020. Doi: 10.18178/ijeetc.9.4.242-246

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.