A Power-signal Parallel Transmission Technology for ECPT Systems Based on Duty Cycle Modulation of Square Wave Carrier
Su Yugang1,Zhou Wei1,Hu Aiguo2,Sun Yue1,Chen Long1
1.College of Automation Chongqing University Chongqing 400030 China 2.Department of Electrical and Computer Engineering The University of Auckland Auckland 1010 New Zealand
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.
苏玉刚,周玮,呼爱国,孙跃,陈龙. 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[J]. 电工技术学报, 2015, 30(21): 51-56.
Su Yugang,Zhou Wei,Hu Aiguo,Sun Yue,Chen Long. A Power-signal Parallel Transmission Technology for ECPT Systems Based on Duty Cycle Modulation of Square Wave Carrier. Transactions of China Electrotechnical Society, 2015, 30(21): 51-56.
[1] Zhao Junfeng,Huang Xueliang,Wang Wei.Wireless power transfer with two-dimensional resonators[J].IEEE Transactions on Magnetics,2014,50(1):1-4. [2] 黄学良,谭林林,陈中,等.无线电能传输技术研究与应用综述[J].电工技术学报,2013,28(10):1-11. Huang Xueliang,Tan Linlin,Chen Zhong,et al.Review and research progress on wireless power transfer technology[J].Transactions of China Electrotechnical Society,2013,28(10):1-11. [3] Hu A P,Chao L,Hao L L.A novel contactless battery charging system for soccer playing robot[C].15th International Conference on Mechatronics and Machine Vision in Practice,Auckland,2008:646-650. [4] Zheng H,Tnay K,Alami N,et al.Contactless power couplers for respiratory devices[C].IEEE/ASME International Conference on Mechatronics and Embedded Systems and Applications (MESA),Qingdao,2010:155-160. [5] Culurciello E,Andreou A G.Capacitive coupling of data and power for 3D silicon-on-insulator VLSI[C].International Symposium on Circuits and Systems,Kobe,Japan,2005:4142-4145. [6] Ludois D C,Reed J K,Hanson K.Capacitive power transfer for rotor field current in synchronous machines[J].IEEE Transactions on Power Electronics,2012,27(11):4638-4645. [7] Dai Jiejian,Ludois D C.Wireless electric vehicle charging via capacitive power transfer through a conformal bumper[C].2015 IEEE Applied Power Electronics Conference and Exposition (APEC),Charlotte,NC,2015:3307-3313. [8] 徐健.电场耦合型无线电能传输系统拓扑研究及调谐控制[D].重庆:重庆大学,2014. [9] 周川.基于电场耦合的无线电能传输技术研究[D].重庆:重庆大学,2012. [10]Theodoridis M P.Effective capacitive power transfer[J].IEEE Transactions on Power Electronics,2012,27(12):4906-4913. [11]李阳,杨庆新,闫卓,等.无线电能有效传输距离及其影响因素分析[J].电工技术学报,2013,28(1):106-112. Li Yang,Yang Qingxin,Yan Zhuo,et al.Analysis on effective range of wireless power transfer and its impact factors[J].Transactions of China Electrotechnical Society,2013,28(1):106-112. [12]Sato F,Nomoto T,Kano G,et al.A new contactless power-signal transmission device for implanted functional electrical stimulation (FES)[J].IEEE Transactions on Magnetics,2004,40(4):2964-2966. [13]Marioli D,Sardini E,Serpelloni M,et al.Contactless transmission of measurement information between sensor and conditioning electronics[J].IEEE Transactions on Instrumentation and Measurement,2008,57(2):303-308. [14]Yilmaz G,Atasoy O,Dehollain C.Wireless energy and data transfer for in-vivo epileptic focus localization[J].IEEE Sensors Journal,2013,13(11):4172-4179. [15]戴欣,杜人杰,唐春森,等.基于2FSK 的 ICPT 系统高速信号传输方法[J].西南交通大学学报,2013,48(5):892-897. Dai Xin,Du Renjie,Tang Chunsen,et al.A 2FSK-based high-speed signal transmission method for ICPT system[J].Journal of Southwest Jiaotong University,2013,48(5):892-897. [16]孙跃,王琛琛,唐春森,等.CPT系统能量与信号混合传输技术[J].电工电能新技术,2010,29(4):10-13,22. Sun Yue,Wang Chenchen,Tang Chunsen,et al.Study on inductively coupled synchronous transmission of power and signal[J].Advanced Technology Of Electrical Engineering And Energy,2010,29(4):10-13,22. [17]Culurciello E,Andreou A G.Capacitive inter-chip data and power transfer for 3-D VLSI[J].IEEE Transactions on Circuits and Systems Ⅱ:Express Briefs,2006,53(12):1348-1352. [18]苏玉刚,徐健,谢诗云,等.电场耦合型无线电能传输系统调谐技术[J].电工技术学报,2013,28(11):189-194. Su Yugang,Xu Jian,Xie Shiyun,et al.A tuning technology of electrical-field coupled wireless power transfer system[J].Transactions of China Electrotechnical Society,2013,28(11):189-194.
2015, Vol. 30 
