Frequency Splitting Phenomena of Magnetic Resonant Coupling Wireless Power Transfer

被引：66

作者：

Huang, Runhong ^{[1
]}

Zhang, Bo ^{[1
]}

Qiu, Dongyuan ^{[1
]}

Zhang, Yuqiu ^{[1
]}

机构：

[1] S China Univ Technol, Sch Elect Power, Guangzhou 510640, Guangdong, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Frequency splitting; maximum transfer power; resonant coupling; wireless power transfer (WPT); ENERGY-TRANSFER; SYSTEM;

D O I：

10.1109/TMAG.2014.2331143

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In magnetic resonant coupling wireless power transfer (WPT) system, the frequency splitting phenomena have a vital influence on the output power. This paper mainly focuses on the frequency splitting of two-coil and three-coil WPT. First, the frequency characteristics of transfer power and system efficiency of the two-coil WPT are analyzed by circuit theory. In addition, the magnetic field distribution of the two splitting frequencies is simulated to analyze which frequency is better for the operating frequency. Second, considering the reference resistance of RF power, the frequency splitting of two-coil and three-coil WPT is analyzed. Finally, the critical coupling, which determines the over coupled region, of two-coil and three-coil WPT is derived. Meanwhile, we propose a tuned frequency method according to the numerical results. In addition, the transfer power can be kept at a relatively constant level in the over coupled region.

引用

页数：4

共 10 条

[1] Automated Impedance Matching System for Robust Wireless Power Transfer via Magnetic Resonance Coupling [J].

Beh, Teck Chuan ;

Kato, Masaki ;

Imura, Takehiro ;

Oh, Sehoon ;

Hori, Yoichi .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2013, 60 (09) :3689-3698

[2] A Critical Review of Recent Progress in Mid-Range Wireless Power Transfer [J].

Hui, S. Y. R. ;

Zhong, Wenxing ;

Lee, C. K. .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2014, 29 (09) :4500-4511

[3] Efficient wireless non-radiative mid-range energy transfer [J].

Karalis, Aristeidis ;

Joannopoulos, J. D. ;

Soljacic, Marin .

ANNALS OF PHYSICS, 2008, 323 (01) :34-48

[4] Automated frequency tracking system for efficient mid-range magnetic resonance wireless power transfer [J].

Kim, Nam Yoon ;

Kim, Ki Young ;

Kim, Chang-Woo .

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2012, 54 (06) :1423-1426

[5] Wireless power transfer via strongly coupled magnetic resonances [J].

Kurs, Andre ;

Karalis, Aristeidis ;

Moffatt, Robert ;

Joannopoulos, J. D. ;

Fisher, Peter ;

Soljacic, Marin .

SCIENCE, 2007, 317 (5834) :83-86

[6] Coupled-mode analysis of frequency splitting phenomena in CPT systems [J].

Niu, W. Q. ;

Gu, W. ;

Chu, J. X. ;

Shen, A. D. .

ELECTRONICS LETTERS, 2012, 48 (12) :723-724

[7] Acoustic Energy Transfer: A Review [J].

Roes, Maurice G. L. ;

Duarte, Jorge L. ;

Hendrix, Marcel A. M. ;

Lomonova, Elena A. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2013, 60 (01) :242-248

[8] Analysis, Experimental Results, and Range Adaptation of Magnetically Coupled Resonators for Wireless Power Transfer [J].

Sample, Alanson P. ;

Meyer, David A. ;

Smith, Joshua R. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2011, 58 (02) :544-554

[9] Relay Effect of Wireless Power Transfer Using Strongly Coupled Magnetic Resonances [J].

Zhang, Fei ;

Hackworth, Steven A. ;

Fu, Weinong ;

Li, Chengliu ;

Mao, Zhihong ;

Sun, Mingui .

IEEE TRANSACTIONS ON MAGNETICS, 2011, 47 (05) :1478-1481

[10] Quantitative Design and Analysis of Relay Resonators in Wireless Power Transfer System [J].

Zhang, Xiu ;

Ho, S. L. ;

Fu, W. N. .

IEEE TRANSACTIONS ON MAGNETICS, 2012, 48 (11) :4026-4029

← 1 →