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Energies 2018, 11(3), 532; https://doi.org/10.3390/en11030532

Single-Wire Electric-Field Coupling Power Transmission Using Nonlinear Parity-Time-Symmetric Model with Coupled-Mode Theory

School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China
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Received: 20 January 2018 / Revised: 9 February 2018 / Accepted: 26 February 2018 / Published: 1 March 2018
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Abstract

The output power and transmission efficiency of the traditional single-wire electric-field coupling power transmission (ECPT) system will drop sharply with the increase of the distance between transmitter and receiver, thus, in order to solve the above problem, in this paper, a new nonlinear parity-time (PT)-symmetric model for single-wire ECPT system based on coupled-mode theory (CMT) is proposed. The proposed model for single-wire ECPT system not only achieves constant output power but also obtains a high constant transmission efficiency against variable distance, and the steady-state characteristics of the single-wire ECPT system are analyzed. Based on the theoretical analysis and circuit simulation, it shows that the transmission efficiency with constant output power remains 60% over a transmission distance of approximately 34 m without the need for any tuning. Furthermore, the application of a nonlinear PT-symmetric circuit based on CMT enables robust electric power transfer to moving devices or vehicles. View Full-Text
Keywords: single-wire; electric-field coupling; parity-time-symmetric; coupled-mode theory single-wire; electric-field coupling; parity-time-symmetric; coupled-mode theory
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Shu, X.; Zhang, B. Single-Wire Electric-Field Coupling Power Transmission Using Nonlinear Parity-Time-Symmetric Model with Coupled-Mode Theory. Energies 2018, 11, 532.

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