基于方波载波占空比调制的ECPT系统能量信号并行传输技术

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Abstract A time domain transient mathematic model is built to analyze the channel frequency characteristics of the electric-field coupled power transfer (ECPT) system.To increase the channel bandwidth and signal rate,a new power-signal parallel transmission technology based on duty cycle modulation of the square wave carrier is proposed.This paper presents the specific signal modulation and demodulation flow chart.The proposed method can expand the channel bandwidth,reduce the difficulty of modulation and separation of power-signal waveform,enhance the signal rate,and reduce the source frequency.Both the Matlab simulation and experimental results prove the feasibility and effectiveness of this method.

Key words： Wireless power transfer electric-field coupling power-signal parallel transmission square wave carrier duty cycle modulation

Received: 30 May 2015 Published: 12 November 2015

PACS:

TM724

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	Su Yugang
	Zhou Wei
	Hu Aiguo
	Sun Yue
	Chen Long

Cite this article:

Su Yugang,Zhou Wei,Hu Aiguo等. A Power-signal Parallel Transmission Technology for ECPT Systems Based on Duty Cycle Modulation of Square Wave Carrier[J]. Transactions of China Electrotechnical Society, 2015, 30(21): 51-56.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I21/51

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