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Genetic Algorithm-Based Resonator Array Design Method for Wireless Power Transfer


Abstract

Resonator design methods play an important role in realizing efficient wireless power transfer via magnetic resonant coupling (WPT-MRC) systems. In WPT-MRC systems, transmitting (Tx) resonator arrays are often used to extend the range of the power supply. However, it is difficult to design a receiving (Rx) resonator that prevents significant drops in transfer efficiency across the Tx resonator array owing to the complexity that stems from fluctuating coupling coefficients. In order to resolve this difficulty, this paper proposes a genetic algorithm-based Rx resonator array design method. Using the proposed design method, the computed minimum transfer efficiency of a power supply system using a Tx resonator array increased from 3.8% to 42.6%, and the computed results were verified by simulations and measurements.

Related Publications

T. Sasatani, Y. Narusue, Y. Kawahara, and T. Asami, “Genetic Algorithm-Based Design of Receiving Resonator Arrays for Wireless Power Transfer via Magnetic Resonant Coupling,” Proc. IEEE Wireless Power Transfer Conference 2016, pp. 1-4, Aveiro, Portugal, May 2016.

笹谷拓也,成末義哲,川原圭博,浅見徹,”磁界共振結合型無線電力伝送における遺伝的アルゴリズムを用いた受電共振器アレイの設計,” 信学総大 2016,B-21-22, March 2016.

笹谷拓也,成末義哲,川原圭博,浅見徹,”送電共振器アレイを用いた無線電力伝送における給電効率向上のための受電共振器アレイ形状の検討,” 信学ソ大 2015,B-21-6, Sept. 2015.

Receiving resonator array designed by the proposed
method based on genetic algorithm.




The equivalent circuit of the transmitter resonator
 array to receiving resonator array wireless power
 transfer system.



The overview of the transmitter resonator array to
 receiving resonator array wireless power transfer system.