Abstract：Electric-field coupled wireless power transmission (ECPT) is a kind of wireless power transmission(WPT) technology through the coupler between metal plates. It has attracted widely concerned for its good characteristics, no eddy current, low cost and low loss. It also has become a hot topic in the research of WPT. Firstly, the development process and basic principle of ECPT technology is introduced. Then, the research results of ECPT technology at home and abroad in recent years are systematically analyzed and summarized. Specifically, its characteristics, improvement process, and existing problems in coupler, circuit structure, system control, electromagnetic safety, hybrid coupling of electric field and magnetic field are discussed, and the ECPT technologies for various application scenarios are summed up. Finally, the future research direction is prospected.
[1] 苏玉刚, 吴学颖, 赵鱼名, 等. 互补对称式LCC谐振网络的电场耦合式无线电能传输系统参数优化[J]. 电工技术学报, 2019, 34(14): 2874-2883. Su Yugang, Wu Xueying, Zhao Yuming, et al.Parameter optimization of electric-field coupled wireless power transfer system with complementary symmetric LCC resonant network[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 2874-2883. [2] 张波, 疏许健, 吴理豪, 等. 无线电能传输技术亟待解决的问题及对策[J]. 电力系统自动化, 2019, 43(18): 1-12. Zhang Bo, Shu Xujian, Wu Lihao, et al.Problems of wireless power transmission technology urgent to be solved and corresponding countermeasures[J]. Automation of Electric Power Systems, 2019, 43(18): 1-12. [3] 赵争鸣, 张艺明, 陈凯楠. 磁耦合谐振式无线电能传输技术新进展[J]. 中国电机工程学报, 2013, 33(3): 1-13. Zhao Zhengming, Zhang Yiming, Chen Kainan.New progress of magnetically-coupled resonant wireless power transfer technology[J]. Proceedings of the CSEE, 2013, 33(3): 1-13. [4] Brown W C.The history of power transmission by wireless waves[J]. IEEE Transactions on Microwave Theory and Techniques, 1984, 32(9): 1230-1242. [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, 2014, 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, 2014, 28(10): 1-11. [6] 苏玉刚, 周川, 闾琳, 等. 基于电场耦合方式的无线电能传输技术综述[J]. 世界科技研究与发展, 2013, 35(2): 177-180. SuYugang, Zhou Chuan, Lu Lin, et al. Review on wireless power transmission technique based on electric-field coupling mode[J]. World SCI-TECH R&D, 2013, 35(2): 177-180. [7] 张建华, 黄学良, 邹玉炜, 等. 利用超声波方式实现无线电能传输的可行性的研究[J]. 电工电能新技术, 2011, 30(2): 66-69. Zhang Jianhua, Huang Xueliang, Zou Yuwei, et al.Feasibility of ultrasonic wireless power transmission[J]. Advanced Technology of Electrical Engineering and Energy, 2011, 30(2): 66-69. [8] Jeff R C, Jietao L.A capacitively coupled battery charging system[J]. Dept. Elect & Compo. Eng., the Univ. of Auckland, Auckland, New Zealand, 2006. [9] Xia Chenyang, Li Chaowei, Zhang Juan.Analysis of power transfer characteristic of capacitive power transfer system and inductively coupled power transfer system[C]//2011 International Conference on Mechatronic Science, Electric Engineering and Computer (MEC), Jilin, China, 2011: 1281-1285. [10] Dai Jiejian, Ludois D C.A survey of wireless power transfer and a critical comparison of inductive and capacitive coupling for small gap applications[J]. IEEE Transactions on Power Electronics, 2015, 30(11): 6017-6029. [11] Martin T C.The inventions, researches and writings of Nikola Tesla[M]. Рипол Классик, 1977. [12] Paul C. Underwater electric field communication system: U.S., 3,265,972[P].1966-8-9. [13] Hu A P, Liu Chao, Li H L.A novel contactless battery charging system for soccer playing robot[C]//2008 15th International Conference on Mechatronics and Machine Vision in Practice, Auckland, New Zealand, 2008: 646-650. [14] Liu Chao, Hu A P.Steady state analysis of a capacitively coupled contactless power transfer system[C]//2009 IEEE Energy Conversion Congress and Exposition, San Jose, CA, USA, 2009: 3233-3238. [15] Liu Chao, Hu A P.Power flow control of a capacitively coupled contactless power transfer system[C]//2009 35th Annual Conference of IEEE Industrial Electronics, Porto, Portugal, 2009: 743-747. [16] Liu Chao, Hu A P, Nair N K C. Coupling study of a rotary capacitive power transfer system[C]//2009 IEEE International Conference on Industrial Technology, Churchill, VIC, Australia, 2009: 1-6. [17] Liu Chao, Hu A P, Budhia M.A generalized coupling model for capacitive power transfer systems[C]//IECON 2010-36th Annual Conference on IEEE Industrial Electronics Society, Glendale, AZ, USA, 2010: 274-279. [18] Dai Jiejian, Ludois D C.Single active switch power electronics for kilowatt scale capacitive power transfer[J]. IEEE Journal of Emerging & Selected Topics in Power Electronics, 2015, 3(1): 315-323. [19] 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(11): 6011-6014. [20] Lu Fei, Zhang Hua, Hofmann H, et al.A CLLC-compensated high power and large air-gap capacitive power transfer system for electric vehicle charging applications[C]//2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 2016: 1721-1725. [21] Nishiyama H, Nakamura M.Form and capacitance of parallel-plate capacitors[J]. IEEE Transactions on Components, Packaging, and Manufacturing Technology: Part A, 1994, 17(3): 477-484. [22] 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, USA, 2015: 3307-3313. [23] Zhang Hua, Lu Fei, Hofmann H, et al.An LC-compensated electric field repeater for long-distance capacitive power transfer[J]. IEEE Transactions on Industry Applications, 2017, 53(5): 4914-4922. [24] Zheng H, Tnay K, Alami N, et al.Contactless power couplers for respiratory devices[C]//Proceedings of 2010 IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications, Qingdao, China, 2010: 155-160. [25] Yi K H, Jung J Y, Lee B H, et al.Study on a capacitive coupling wireless power transfer with electric vehicle's dielectric substrates for charging an electric vehicle[C]//2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), Warsaw, Poland, 2017:1-7. [26] 孙雨. 电场耦合无线电能传输系统耦合机构研究[D]. 重庆: 重庆大学, 2014. [27] 贺飞. 旋转类设备电场耦合式无线电能传输应用研究[D]. 西安: 西安理工大学, 2019. [28] Zhang Hua, Lu Fei, Hofmann H, et al.A large air-gap capacitive power transfer system with a 4-plate capacitive coupler structure for electric vehicle charging applications[C]//2016 IEEE applied power electronics conference and exposition (APEC), Long Beach, CA, USA, 2016: 1726-1730. [29] Zhang Hua, Lu Fei, Hofmann H, et al.A four-plate compact capacitive coupler design and LCL-compensated topology for capacitive power transfer in electric vehicle charging application[J]. IEEE Transactions on Power Electronics, 2016, 31(12): 8541-8551. [30] 苏玉刚, 傅群锋, 马浚豪, 等. 电场耦合电能传输系统层叠式耦合机构漏电场抑制方法[J]. 电力系统自动化, 2019, 43(2): 130-136. SuYugang, Fu Qunfeng, Ma Junhao, et al. Fringing electric field suppression method of electric-field coupled power transfer system with four-plate coupler[J]. Automation of Electric Power Systems, 2019, 43(2): 130-136. [31] Liu Chao, Hu A P, Dai Xin.A contactless power transfer system with capacitively coupled matrix pad[C]//2011 IEEE Energy Conversion Congress and Exposition, Phoenix, AZ, USA, 2011: 3488-3494. [32] Dai Jiejian, Ludois D C.Biologically inspired coupling pixilation for position independence in capacitive power transfer surfaces[C]//Applied Power Electronics Conference and Exposition, Charlotte, NC, USA, 2015: 3276-3282. [33] Zou L J, Hu A P, Su Yuguang.A single-wire capacitive power transfer system with large coupling alignment tolerance[C]//2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), Chongqing, China, 2017: 93-98. [34] Van Neste C W, Phani A, Larocque A, et al. Quarter wavelength resonators for use in wireless capacitive power transfer[C]//2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), Chongqing, China, 2017: 229-234. [35] Shu Xujian, Zhang Bo. Single-wire electric-field coupling power transmission using nonlinear parity-time-symmetric model with coupled-mode theory[J/OL]. Energies, 2018, 11(3): 532. https://doi.org/10.3390/en11030532. [36] Liu Guangjun, Zhang Bo.Analytical model of a 25-50 m robust single-wire electric-field coupling power transfer system using a limiter[J]. IEEE Transactions on Circuits and Systems Ⅱ: Express Briefs, 2018, 66(6): 978-982. [37] Gao Xingran, Zhou Hong, Hu Wenshan, et al.A novel capacitive power system with a single coupling capacitor[C]//2017 Chinese Automation Congress (CAC), Jinan, China, 2017: 7241-7245. [38] Gao Xingran, Zhou Hong, Hu Wenshan, et al.Capacitive power transfer through virtual self-capacitance route[J]. IET Power Electronics, 2018, 11(6): 1110-1118. [39] Liu Chao, Hu A P, Budhia M.A generalized coupling model for capacitive power transfer systems[C]//IECON 2010-36th Annual Conference on IEEE Industrial Electronics Society, Glendale, AZ, USA, 2010: 274-279. [40] Huang L, Hu A P.Defining the mutual coupling of capacitive power transfer for wireless power transfer[J]. Electronics Letters, 2015, 51(22): 1806-1807. [41] Hua Zhang, Lu Fei, Hofmann H, et al.Six-plate capacitive coupler to reduce electric field emission in large air-gap capacitive power transfer[J]. IEEE Transactions on Power Electronics, 2017, 33(1): 665-675. [42] Wu Xueying, Su Yuguang, Hu A P, et al.Multi-objective parameter optimization of a four-plate capacitive power transfer system[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, DOI:10.1109/JESTPE.2020.2979990. [43] Huang Liang, Hu A P, Swain A, et al.Comparison of two high frequency converters for capacitive power trans-fer[C]//2014 IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, USA, 2014: 5437-5443. [44] Kline M, Izyumin I, Boser B, et al.Capacitive power transfer for contactless charging[C]//2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Fort Worth, TX, USA, 2011: 1398-1404. [45] 伍红霞. 电场耦合式非导体接触供电稳压稳流技术研究[D]. 大连: 大连理工大学, 2015. [46] Dai Jiejian, Ludois D C.Single active switch power electronics for kilowatt scale capacitive power transfer[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2014, 3(1): 315-323. [47] Dai Jiejian, Ludois D C.Capacitive power transfer through a conformal bumper for electric vehicle charging[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2015, 4(3): 1015-1025. [48] Theodoridis M P.Effective capacitive power transfer[J]. IEEE Transactions on Power Electronics, 2012, 27(12): 4906-4913. [49] 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, MouXianmin, et al. The current-type capacitively coupled wireless power transfer technology[J]. Proceedings of the CSEE, 2015, 35(9): 2279-2286. [50] 赵鱼名, 王智慧, 苏玉刚, 等. 基于T 型 CLC 谐振网络的恒压型电场耦合电能传输系统负载自适应技术[J]. 电工技术学报, 2020, 35(1): 106-114. Zhao Yuming, Wang Zhihui, SuYugang, et al. Load adaptive technology of constant voltage electric-field coupled power transfer system based on T-CLC resonant network[J]. Transactions of China Electrote-chnical Society, 2020, 35(1): 106-114. [51] 陈阳琦, 陈丽华, 罗博, 等. 一种电场耦合式无线电能传输系统无源谐振元件电压优化方法[J]. 电工技术学报, 2018, 33(10): 2237-2244. Chen Yangqi, Chen Lihua, Luo Bo, et al.Voltage optimization method of passive resonant elements in electric field coupled power transmission system[J]. Transactions of China Electrotechnical Society, 2018, 33(10): 2237-2244. [52] 苏玉刚, 谢诗云, 王智慧, 等. 基于F-F/T 变结构谐振网络的恒压-恒流型电场耦合电能传输系统[J]. 电工技术学报, 2019, 34(6): 1127-1136. Su Yugang, Xie Shiyun, Wang Zhihui, et al.An electric-field coupled power transfer system with constant voltage and constant current output based on F-F/T changeable resonant circuit[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1127-1136. [53] 胡杰, 陈丽华, 罗博, 等. 基于全耦合电容模型的双发射电场耦合式无线电能传输系统[J]. 电工技术学报, 2019, 34(17): 3542-3551. Hu Jie, Chen Lihua, Luo Bo, et al.Electric Field coupled power transmission system with dual transmitting terminals based on full-capacitive coupling model[J]. Transactions of China Electrote-chnical Society, 2019, 34(17): 3542-3551. [54] 高镇, 于广强, 刘宁. 基于E 类放大器的电场耦合式水下无线电能传输系统设计[J]. 河海大学学报 (自然科学版), 2019(6): 560-567. Gao Zhen, Yu Guangqiang, Liu Ning.Design of electric-field coupled underwater wireless power transfersystem based on class E amplifier[J]. Journal of Hohai University (Natural Sciences), 2019, 47(6): 560-567. [55] 高镇, 周蕾, 王丹, 等. ECPT系统传输功率及效率分析与实验验证[J].电机与控制学报, 2019, 23(9): 51-56. Gao Zhen, Zhou Lei, Wang Dan, Jing Qingqing.Analysis and experimental validation on maximum power andefficiency in electric-field coupled power transfer system[J]. Electric Machines and Control, 2019, 23(9): 51-56. [56] 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, 2014, 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, 2014, 28(11): 189-194. [57] 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 patriotic, et al. Transmission 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. [58] Zhang Hua, Lu Fei, Hofmann H, et al.A loosely coupled capacitive power transfer system with LC compensation circuit topology[C]//2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016: 1-5. [59] Lu Fei, Zhang Hua, Hofmann H, et al.A double-sided LC-compensation circuit for loosely coupled capacitive power transfer[J]. IEEE Transactions on Power Electronics, 2017, 33(2): 1633-1643. [60] Fnato H, Chiku Y, Harakawa K.Wireless power distribution with capacitive coupling excited by switched mode active negative capacitor[C]//2010 International Conference on Electrical Machines and Systems, Incheon, Korea, 2010: 117-122. [61] Hirohito F, Chiku Y.A novel power converter suitable for contactless power distribution with capacitive coupling using series-connected switched-mode active negative capacitor[C]//Proceedings of the 2011 14th European Conference on Power Electronics and Applications, Birmingham, UK, 2011: 1-8. [62] Kobayashi H, Funato H, Chiku Y.Enhancement of transfer power of capacitive power transfer system using cascaded one pulse switching active capacitor (C-OPSAC) withthree-level operation[C]//Proceedings of the 7th International Power Electronics and Motion Control Conference, Harbin, China, 2012, 2: 884-888. [63] Mostafa T M, Muharam A, Hattori R.Wireless battery charging system for drones via capacitive power transfer[C]//2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), Chongqing, China, 2017: 1-6. [64] Muharam A, Mostafa T M, Hattori R.Design of power receiving side in wireless charging system for UAV application[C]//2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA), Jakarta, Indonesia, 2017: 133-139. [65] Bui Dai, Mostafa T M, Hu A P, et al.DC-DC converter based impedance matching for maximum power transfer of CPT system with high efficiency[C]//2018 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (Wow), Montreal, QC, Canada, 2018: 1-5. [66] Muharam A, Mostafa T M, Nugroho A, et al.A single-wire method of coupling interface in capacitive power transfer for electric vehicle wireless charging system[C]//2018 International Conference on Sustainable Energy Engineering and Application (ICSEEA), Tangerang, Indonesia, 2018: 39-43. [67] Mostafa T M, Muharam A, Hu A P, et al.Improved CPT system with less voltage stress and sensitivity using a step-down transformer on receiving side[J]. IET Power Electronics, 2019, 12(10): 2634-2641. [68] Mostafa T M, Bui D, Muharam A, et al.Load effect analysis and maximum power transfer tracking of CPT system[J]. IEEE Transactions on Circuits and Systems I: Regular Papers, 2020, 67(8): 2836-2848. [69] Tang Chunsen, Sun Yue, Su Yugang, et al.Determining multiple steady-state ZCS operating points of a switch-mode contactless power transfer system[J]. IEEE Transactions on Power Electronics, 2009, 24(2): 416-425. [70] 胡友强, 戴欣. 基于电容耦合的非接触电能传输系统模型研究[J]. 仪器仪表学报, 2010, 31(9): 2133-2139. Hu Youqiang, Dai Xin.Study on modeling of capacitively coupled contactless power transfer system using generalized state space averaging[J]. Chinese Journal of Scientific Instrument, 2010, 31(9): 2133-2139. [71] 孙跃, 李砚玲. 非接触传输系统的广义状态空间平均法分析[J]. 同济大学学报 (自然科学版), 2010, 38(10): 1521-1524, 1539. Sun Yue, Li Yanling.Analysis of contactless power transfer system using generalized state space averaging method[J]. Journal of Tongji University (Natural Science), 2010, 38(10): 1521-1524, 1539. [72] Shekhar S, Mishra S, Joshi A.A utility interfaced half-bridge based capacitively coupled power transfer circuit with automatic frequency control[C]//2013 IEEE Energy Conversion Congress and Exposition, Denver, CO, USA, 2013: 1598-1602. [73] 苏玉刚, 陈苓芷, 唐春森, 等. 基于NSGA-II算法的 ECPT 系统 PID 参数寻优及输出稳压控制[J]. 电工技术学报, 2016, 31(19): 106-114. SuYugang, Chen Lingzhi, Tang Chunsen, et al. Evolutionary multi-objective optimization of PID parameters for output voltage regulation in ECPT system based on NSGA-II[J]. Transactions of China Electrotechnical Society, 2016, 31(19): 106-114. [74] 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. [75] Piipponen K V T, Sepponen R, Eskelinen P. A biosignal instrumentation system using capacitive coupling for power and signal isolation[J]. IEEE Transactions on Biomedical Engineering, 2007, 54(10): 1822-1828. [76] Cardu R, Scandiuzzo M, Cani S, et al.Chip-to-chip communication based on capacitive coupling[C]//2009 IEEE International Conference on 3D System Integration, San Francisco, CA, USA, 2009: 1-6. [77] 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. SuYugang, Zhou Wei, Call patriotic, et al. A power-signal parallel transmission technology for ECPT systemsbased on duty cycle modulation of square wave carrier[J]. Transactions of China Electrotechnical Society, 2015, 30(21): 51-56. [78] 李思奇, 代维菊, 赵晗, 等. 电场耦合式无线电能传输的发展与应用[J]. 昆明理工大学学报: 自然科学版, 2016, 41(3): 76-84. Li Siqi, Dai Weiju, Zhao Han, et al.Development and application of electric-field coupled wireless power transfer[J]. Journal of Kunming University of Science and Technology(Natural Science Edition), 2016, 41(3): 76-84. [79] Su Y G, Ma J H, Xie S Y, et al.Analysis on safety issues of capacitive power transfer system[J]. International Journal of Applied Electromagnetics and Mechanics, 2017, 53(4): 673-684. [80] 郭历谋, 罗博, 麦瑞坤. 基于电场耦合式的电动汽车无线充电技术电压优化方法[J]. 电工技术学报, 2020, 35(增刊1): 19-27. Guo Limou, Luo Bo, Mai Ruikun.Voltage optimization method for wireless charging of electric vehicles based on capacitive power transfer[J]. Transactions of China Electrotechnical Society, 2020, 35(S1): 19-27. [81] Kim J, Bien F.Electric field coupling technique of wireless power transfer for electric vehicles[C]//IEEE 2013 Tencon-Spring, Sydney, NSW, Australia, 2013: 267-271. [82] Masuda M.Electric field coupling type high power wireless power transfer with leakage electric field strucure[C]//2018 International Power Electronics Conference (IPEC-Niigata 2018-ECCE Asia), Niigata, Japan, 2018: 88-93. [83] Kumar A, Pervaiz S, Chang C K, et al.Investigation of power transfer density enhancement in large air-gap capacitive wireless power transfer systems[C]//2015 IEEE Wireless Power Transfer Conference (WPTC), Boulder, CO, USA, 2015: 1-4. [84] Lu Fei, Zhang Hua, Hofmann H, et al.An inductive and capacitive combined wireless power transfer system with LC-compensated topology[J]. IEEE Transactions on Power Electronics, 2016, 31(12): 8471-8482. [85] Liu Gongjun, Zhang Bo.Dual-coupled robust wireless power transfer based on parity-time-symmetric model[J]. Chinese Journal of Electrical Engineering, 2018, 4(2): 50-55. [86] Lu Fei, Zhang Hua, Hofmann H, et al.An inductive and capacitive integrated coupler and its LCL compensation circuit design for wireless power transfer[J]. IEEE Transactions on Industry Applications, 2017, 53(5): 4903-4913. [87] 罗颖, 麦瑞坤, 罗博, 等. 感应式与电场式结合的无线电能传输系统的设计与实现[J]. 电工技术学报, 2018, 33(增刊2): 287-294. Luo Ying, Mai Ruikun, Luo Bo, et al.Design and implement of an inductive and capacitive combined wireless power transfer system[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 287-294. [88] Chen Xu, Yu Shengbao, Song Shuchao, et al.Hybrid coupler for 6.78 MHz desktop wireless power transfer applications with stable open-loop gain[J]. IET Power Electronics, 2019, 12(10): 2642-2649. [89] Zhou Wei, Su Yuguang, Huang Liang, et al.Wireless power transfer across a metal barrier by combined capacitive and inductive coupling[J]. IEEE Transactions on Industrial Electronics, 2018, 66(5): 4031-4041. [90] Li Siqi, Liu Zhe, Zhao Han, et al.Wireless power transfer by electric field resonance and its application in dynamic charging[J]. IEEE Transactions on Industrial Electronics, 2016, 63(10): 6602-6612. [91] Kawamori K, Ohsawa T, Ozeki K, et al.Electric field coupling wireless power transmission using disposal electric train rail for feeder[C]//2018 International Symposium on Antennas and Propagation (ISAP), Busan, Korea, 2018: 1-2. [92] Ohira T.Via-wheel power transfer to vehicles in motion[C]//2013 IEEE Wireless Power Transfer (WPT), Perugia, Italy, 2013: 242-246. [93] Sinha S, Regensburger B, Doubleday K, et al.High-power-transfer-density capacitive wireless power transfer system for electric vehicle charging[C]//2017 IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, USA, 2017: 967-974. [94] Zhou Jiali, Zhang Bo, Xiao Wenxun, et al.Nonlinear parity-time-symmetric model for constant efficiency wireless power transfer: application to a drone-in-flight wireless charging platform[J]. IEEE Transactions on Industrial Electronics, 2018, 66(5): 4097-4107. [95] 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. [96] Hagen S, Knippel R, Dai J, et al.Capacitive coupling through a hydrodynamic journal bearing to power rotating electrical loads without contact[C]//2015 IEEE Wireless Power Transfer Conference (WPTC), Boulder, CO, USA, 2015: 1-4. [97] Ludois D C, Reed J K.Brushless mitigation of bearing currents via capacitively coupled shunting[C]//2014 International Conference on Electrical Machines (ICEM), Berlin, Germany, 2014: 2336-2342. [98] Dai Jiejian, Hagen S, Ludois D C, et al.Synchronous generator brushless field excitation and voltage regulation via capacitive coupling through journal bearings[J]. IEEE Transactions on Industry Applications, 2017, 53(4): 3317-3326. [99] Dai Jiejian, Hagen S, Ludois D C.High-efficiency multiphase capacitive power transfer in sliding carriages with closed-loop burst-mode current control[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2018, 7(2): 1388-1398. [100] Tamura M, Murai K, Matsumoto M.Conductive coupler for wireless power transfer under seawater[C]//2020 IEEE/MTT-S International Microwave Symposium(IMS), Los Angeles, CA, USA, 2020: 1176-1179. [101] Urano M, Ata K, Takahashi A.Study on underwater wireless power transfer via electric coupling with a submerged electrode[C]//2017 IEEE International Meeting for Future of Electron Devices, Kansai (IMFEDK), Kyoto, Japan, 2017: 36-37. [102] Chandra A, Bagchi B.Frequency dependence of ionic conductivity of electrolyte solutions[J]. The Journal of Chemical Physics, 2000, 112(4): 1876-1886. [103] Midi N S, Sasaki K, Ohyama R, et al.Broadband complex dielectric constants of water and sodium chloride aqueous solutions with different DC conductivities[J]. IEEJ Transactions on Electrical and Electronic Engineering, 2014, 9(S1): S8-S12. [104] Tamura M, Naka Y, Murai K, et al.Design of a capacitive wireless power transfer system for operation in fresh water[J]. IEEE Transactions on Microwave Theory and Techniques, 2018, 66(12): 5873-5884. [105] Tamura M, Murai K, Matsumoto M.Design of conductive coupler for underwater wireless power and data transfer[J]. IEEE Transactions on Microwave Theory and Techniques, 2020, 69(1): 1161-1175. [106] 吴理豪, 张波. 电动汽车静态无线充电技术研究综述(上篇)[J].电工技术学报, 2020, 35(6): 1153-1165. Wu LIhao, Zhang Bo.Overview of static wireless charging technology for electric vehicles: part Ⅰ[J]. Transactions of China Electrotechnical Society, 2020, 35(6): 1153-1165. [107] 吴理豪, 张波. 电动汽车静态无线充电技术研究综述(下篇)[J]. 电工技术学报, 2020, 35(6): 1153-1165. Wu Lihao, Zhang Bo.Overview of static wireless charging technology for electric vehicles: part Ⅱ[J]. Transactions of China Electrotechnical Society, 2020, 35(6): 1153-1165. [108] Su Yugang, Zhao Yuming, Hu A P, et al.An F-type compensated capacitive power transfer system allowing for sudden change of pickup[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2018, 7(2): 1084-1093. [109] Chen Xu, Yu Shengbao, Zhang Zhe.A receiver-controlled coupler for multiple output wireless power transfer applications[J]. IEEE Transactions on Circuits and SystemsⅠ: Regular Papers, 2019, 66(11): 4542-4552. [110] Van Neste C W, Phani A, Hull R, et al. Quasi-wireless capacitive energy transfer for the dynamic charging of personal mobility vehicles[C]//2016 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), Knoxville, TN, USA, 2016: 196-199. [111] Chen Pengpeng, Yang Huazhong, Luo Rong, et al.A tissue-channel transcutaneous power transfer technique for implantable devices[J]. IEEE Transactions on Power Electronics, 2018, 33(11): 9753-9761. [112] 辛文辉, 曹忠鲁, 辛亚娟, 等. 植入式医学装置电场耦合式电能传输新方法[J]. 仪器仪表学报, 2015, 36(8): 1816-1821. Xin Wenhui, Cao Zhonglu, Xin Yajuan, et al.Novel wireless power transfer method based on electrical-field coupling for implantable medical devices[J]. Chinese Journal of Scientific Instrument, 2015, 36(8): 1816-1821. [113] Jegadeesan R, Guo Yongxin, Je M.Electric near-field coupling for wireless power transfer in biomedical applications[C]//2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), Singapore, 2013: 1-3. [114] Jegadeesan R, Agarwal K, Guo Yongxin, et al.Wireless power delivery to flexible subcutaneous implants using capacitive coupling[J]. IEEE Transactions on Microwave Theory and Techniques, 2016, 65(1): 280-292.
2022, Vol. 37 
