Electric-Field Coupled Power Transfer System with Π-S Composite Resonant Network and Its Tuning Control
Su Yugang1,2, Ren Dan2, Xie Shiyun2, Zhao Yuming2, Dai Xin1,2
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400030 China; 2. College of Automation Chongqing University Chongqing 400030 China;
Abstract：Electric-field coupled power transfer (ECPT) technology is a type of wireless power transmission based on high frequency electric field. To solve the conflict between high-voltage excitation need of the coupling structure and the low-voltage need of switches in the high-frequency power-conversion link, this paper proposed a new topological structure with Π-S composite resonant network for ECPT system. This structure consists a Π-CLC resonant circuit on the transmitter and a S-type resonant circuit on the receiver. Based on the analysis of the Π-CLC resonant circuit, this paper presented the parameter configuration method to boost the voltage between transmitter plates. Aiming at the decrease of ECPT system transmission performance caused by the variation of transmission distance, this paper also proposed a stepless tuning method based on phased-inductor. It makes the system work at resonant state when the transmission distance varies in the range of 1mm to 5mm, and also increases the power factor and the system stability. Simulation and experimental results verify the effectiveness and validity of the proposed topology and tuning method.
苏玉刚, 任丹, 谢诗云, 赵鱼名, 戴欣. 基于Π-S复合谐振的ECPT系统及其调谐控制[J]. 电工技术学报, 2018, 33(4): 781-790.
Su Yugang, Ren Dan, Xie Shiyun, Zhao Yuming, Dai Xin. Electric-Field Coupled Power Transfer System with Π-S Composite Resonant Network and Its Tuning Control. Transactions of China Electrotechnical Society, 2018, 33(4): 781-790.
[1] 杨庆新, 章鹏程, 祝丽花, 等. 无线电能传输技术的关键基础与技术瓶颈问题[J]. 电工技术学报, 2015, 30(5): 1-8. Yang Qingxin, Zhang Pengcheng, Zhu Lihua, et al.Key fundamental problems and technical bottlenecks of the wireless power transmission technology[J]. Transactions of China Electrotechnical Society, 2015, 30(5): 1-8. [2] 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 Electro- technical Society, 2013, 28(1): 106-112. [3] 程志远, 朱春波, 魏国, 等. 串-并补偿结构大功率感应充电系统谐振变换器[J]. 电工技术学报, 2014, 29(9): 44-48. Cheng Zhiyuan, Zhu Chunbo, Wei Guo, et al.Resonant converter for high power ICPT system with series-parallel compensation[J]. Transactions of China Electrotechnical Society, 2014, 29(9): 44-48. [4] Zhao Junfeng, Huang Xueliang, Wang Wei.Wireless power transfer with two-dimensional resonators[J]. IEEE Transactions on Magnetics, 2014, 50(1): 1-4. [5] 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.Reviewand research progress on wireless power transfer technology[J]. Transactions of China Electro- technical Society, 2013, 28(10): 1-11. [6] 曹玲玲, 陈乾宏, 任小永, 等. 电动汽车高效率无线充电技术的研究进展[J].电工技术学报, 2012, 27(8): 1-12. Cao Lingling, Chen Qianhong, Ren Xiaoyong, et al.Review of the efficient wireless power transmission technique for electric vehicles[J]. Transactions of China Electrotechnical Society, 2012, 27(8): 1-12. [7] 黄晓生, 陈为. 线圈高频损耗解析算法改进及在无线电能传输磁系统设计的应用[J]. 电工技术学报, 2015, 30(8): 62-70. Huang Xiaosheng, Chen Wei.Improved analytical calculation model of high-frequency coil losses and its usage in WPT magnetic system[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 62-70. [8] Su Y G, Zhang H Y, Wang Z H, et al.Steady-state load identification method of inductive power transfer system based on switching capacitors[J]. IEEE Transactions on Power Electronics, 2015, 30(11): 6349-6355. [9] 苏玉刚, 张宁, 方少乾, 等. 同步整流技术在ICPT系统中的应用[J].电工技术学报, 2013, 28(12): 313-318. Su Yugang, Zhang Ning, Fang Shaoqian, et al.Application of synchronous rectifiers in inductive coupled power transfer system[J]. Transactions of China Electrotechnical Society, 2013, 28(12): 313-318. [10] 苏玉刚,唐春森,孙跃, 等. 非接触供电系统多负载自适应技术[J]. 电工技术学报, 2009, 24(1): 153-157. Su Yugang, Tang Chunsen, Sun Yue, et al.Load adaptive technology of contactless power transfer system[J]. Transactions of China Electrotechnical Society, 2009, 24(1): 153-157. [11] Liu C, Hu A P, Wang B, et al.Capacitively coupled contactless matrix charging platform with soft switched transformer control[J]. Industrial Electro- nics, 2013, 60(1): 249-260. [12] 苏玉刚, 谢诗云, 呼爱国, 等. LCL复合谐振型电场耦合式无线电能传输系统传输特性分析[J]. 电工技术学报, 2015, 30(19): 55-60. Su Yugang, Xie Shiyun, Hu Aiguo, et al.Trans- mission property analysis of electric-field coupled wireless power transfer system with LCL resonant network[J]. Transactions of China Electrotechnical Society, 2015, 30(19): 55-60. [13] 苏玉刚, 周玮, 呼爱国, 等. 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, et al.A power- signal parallel transmission technology for ECPT systems based on duty cycle modulation of square wave carrier[J]. Transactions of China Electro- technical Society, 2015, 30(21): 51-56. [14] Theodoridis M P.Effective capacitive power transfer[J]. IEEE Transactions on Power Electronics, 2012, 12(27): 4906-4913. [15] 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 Electro- technical Society, 2013, 28(11): 189-194. [16] Liu C, Hu A P, Covic G A, et al.Comparative study of CCPT systems with two different inductor tuning positions[J]. IEEE Transactions on Power Electronics, 2012, 27(1): 294-306. [17] Yi K H.6.78MHz capacitive coupling wireless power transfer system[J]. Journal of Power Electronics, 2015, 4(15): 987-993. [18] 陈希有, 伍红霞, 牟宪民, 等. 电流型电场耦合无线电能传输技术[J]. 中国电机工程学报, 2015, 35(9): 2279-2286. Chen Xiyou, Wu Hongxia, Mu Xianmin, et al.The current-type capacitively coupled wireless power transfer technology[J]. Proceedings of the CSEE, 2015, 35(9): 2279-2286. [19] Ludois D C, Erickson M J, Reed J K.Aerodynamic fluid bearings for translational and rotating capacitors in noncontact capacitive power transfer systems[J]. IEEE Transactions on Industry Applications, 2014, 50(2): 1025-1033. [20] 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, 11(27): 4638-4645. [21] Lu Fei, Zhang Hua, Hofmann H, et al.A double-sided LCLC compensated capacitive power transfer system for electric vehicle charging[J]. IEEE Transactions on Power Electronics, 2015, 30(13): 6011-6014.
2018, Vol. 33 
