基于多线圈阵列的单管无线电能传输电路优化

doi:10.19595/j.cnki.1000-6753.tces.221475

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Abstract In wireless power transfer technology, full-bridge or half-bridge topology is mainly adopted for the multi-coil parallel transmission system. However, its control and peripheral circuits are complicated, and two switches in series in the inverter turn-on simultaneously will cause a short circuit. In contrast, the single-switch resonant inverter circuit has the advantages of high reliability, simple control, low cost, and easily realizing zero-voltage turn-on. It also has the disadvantages of limited transmission power and significant input current ripple. Hence, by connecting multiple transmitters in parallel and controlling the angle of the input current of the system, the conducting current ripple is suppressed, and the transfer power is increased. It is an effective way to overcome the deficiency of the single-switch resonant inverter. Moreover, the control scheme of the system is simpler than the full-bridge topology if the transfer power is equal.
Because of the particularity of the single switch resonant inverter WPT system, the conventional LCC resonant topology can only be used indirectly. The compensation network of the single switch resonant inverter on the side of the transmitter is usually a P-type structure. The resonant frequency of the PP type and PS type is determined by the transmitter L_t, the receiver L_r, mutual inductance M and the load R_L. However, when the magnetic coupler is misaligned, the mutual inductance M will be varied, which will significantly change the resonant frequency of the system. Eventually, it will affect the transmission power and efficiency of the WPT system. In addition, the voltage gain and the quality factor of the P-type compensation network are low, the DC input voltage in normal operation is high, and the filtering effect of the system on high-order harmonics is poor.
The LCC topology has the following advantages when working normally:
(1) Adjusting the compensation network parameters to make the system constant voltage output.
(2) The mutual inductance and load do not affect the resonant frequency of the system. It is just related to the self-inductance of the transmitter. Meanwhile, the system works stably and is hardly prone to detuning.
(3) As a high-order network, it has an excellent filtering effect on high-order harmonics for the nice quality factor. In addition, the voltage gain is adjustable, and the requirement of the input voltage level is low.
The proposed P-type LCC-S compensation network is suitable for the single-switch resonant inverter. It increases the transmission power of the system by adopting the approach of three-coil parallel input. In order to improve the THD of the input current of the system, firstly, this paper analyzed the working modes of different resonant circuits and parameters and the input current waveform to determine the P^#LCC-S compensation network. Secondly, to reduce the ripple of the system input current, the relationship between the coil input current and the input voltage, mutual inductance, and load impedance in the case of three-coil unbalanced coupling was deduced. After analyzing the input current frequency domain, the RMS of fundamentals and each harmonic was obtained. The ripple is suppressed by vector analysis which improves the system's efficiency. The experimental results indicate that when the rated power is 150 W and the phase-shifting suppression strategy is adopted, the V_pp of the input current is reduced from 8.7 A to 2.76 A when the power transfer distance is 50 mm. In addition, the V_pp of the input current is reduced from 6.98 A to 1.6 A when the power transfer distance is 40 mm, 50 mm, and 60 mm. Among these situations, the highest efficiency is 88.2%.

Key words： Wireless power transfer LCC-S compensation network ripple suppression single-switch resonant inverter

Received: 30 July 2022

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TM724

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	Yang Yi
	Zhang Ge
	Cao Guimei
	Zhang Lu
	Guo Qiang

Cite this article:

Yang Yi,Zhang Ge,Cao Guimei等. Optimization on Single-Switch Wireless Power Transfer Circuit Based on Multi-Coils Array[J]. Transactions of China Electrotechnical Society, 2023, 38(20): 5398-5410.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.221475 OR https://dgjsxb.ces-transaction.com/EN/Y2023/V38/I20/5398

[1] 张波, 疏许健, 黄润鸿. 感应和谐振无线电能传输技术的发展[J]. 电工技术学报, 2017, 32(18): 3-17.
Zhang Bo, Shu Xujian, Huang Runhong.The development of inductive and resonant wireless power transfer technology[J]. Transactions of China Elec- trotechnical Society, 2017, 32(18): 3-17.
[2] 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(8): 1662-1678.
Wu Lihao, Zhang Bo.Overview of static wireless charging technology for electric vehicles: part Ⅱ[J]. Transactions of China Electrotechnical Society, 2020, 35(8): 1662-1678.
[3] 程时杰, 陈小良, 王军华, 等. 无线输电关键技术及其应用[J]. 电工技术学报, 2015, 30(19): 68-84.
Cheng Shijie, Chen Xiaoliang, Wang Junhua, et al.Key technologies and applications of wireless power transmission[J]. Transactions of China Electro- technical Society, 2015, 30(19): 68-84.
[4] 薛明, 杨庆新, 章鹏程, 等. 无线电能传输技术应用研究现状与关键问题[J]. 电工技术学报, 2021, 36(8): 1547-1568.
Xue Ming, Yang Qingxin, Zhang Pengcheng, et al.Application status and key issues of wireless power transmission technology[J]. Transactions of China Electrotechnical Society, 2021, 36(8): 1547-1568.
[5] Yang Yi, Zhang Xuejian, Luo Lei, et al.Research on high power factor single tube variable structure wireless power transmission[J]. World Electric Vehicle Journal, 2021, 12(4): 214.
[6] 赵争鸣, 刘方, 陈凯楠. 电动汽车无线充电技术研究综述[J]. 电工技术学报, 2016, 31(20): 30-40.
Zhao Zhengming, Liu Fang, Chen Kainan.New progress of wireless charging technology for electric vehicles[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 30-40.
[7] 黄先进, 赵鹃, 游小杰. 一种基于输入串联输出并联移相全桥变换器的改进交错控制方法[J]. 电工技术学报, 2020, 35(增刊1): 81-90.
Huang Xianjin, Zhao Juan, You Xiaojie.An improved interlace control method based on input series output parallel phase-shifted full-bridge converter[J]. Transa- ctions of China Electrotechnical Society, 2020, 35(S1), 81-90.
[8] 潘超, 刘凯旭, 郑永健, 等. 计及互感参数的串联-并联型无线电能系统传输特性[J]. 电工技术学报, 2016, 31: 39-44.
Pan Chao, Liu Kaixu, Zheng Yongjian, et al.Transmission characteristics of wireless power system in series-parallel type considering mutual indu- ctance[J]. Transactions of China Electrotechnical Society, 2016, 31: 39-44.
[9] Zhu Ao, Zhou Hong, Deng Qijun, et al.Modeling and phase synchronization control of high-power wireless power transfer system supplied by modular parallel multi-inverters[J]. IEEE Transactions on Vehicular Technology, 2021, 70(7): 6450-6462.
[10] Li Yong, Hu Jiefeng, Li Xiaofei, et al.Efficiency analysis and optimization control for input-parallel output-series wireless power transfer systems[J]. IEEE Transactions on Power Electronics, 2020, 35(1): 1074-1085.
[11] Huang Ying, Lee A T L, Tan S C, et al. Highly efficient wireless power transfer system with single- switch step-up resonant inverter[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021, 9(1): 1157-1168.
[12] 李厚基, 王春芳, 岳睿, 等. 基于SiC器件的单管无线电能传输电路研究[J]. 中国电机工程学报, 2020, 40(6): 1808-1817.
Li Houji, Wang Chunfang, Yue Rui, et al.Research on single-switch wireless power transfer circuit based on SiC device[J]. Proceedings of the CSEE, 2020, 40(6): 1808-1817.
[13] 赵靖英, 周思诺, 崔玉龙, 等. 磁耦合谐振串并式无线电能传输功率稳定性研究[J]. 电工电能新技术, 2018, 37(8): 20-29.
Zhao Jingying, Zhou Sinuo, Cui Yulong, et al.Research on power stability of magnetic resonance wireless power transmission with series-parallel structure[J]. Advanced Technology of Electrical Engineering and Energy, 2018, 37(8): 20-29.
[14] 葛学健, 孙跃, 唐春森, 等. 用于动态无线供电系统的双输出逆变器[J]. 电工技术学报, 2020, 35(4): 786-798.
Ge Xuejian, Sun Yue, Tang Chunsen, et al.Dual- output inverter for dynamic wireless power transfer system[J]. Transactions of China Electrotechnical Society, 2020, 35(4): 786-798.
[15] 陈国东, 吴剑青, 孙跃, 等. 基于互感差异的双拾取无线电能传输系统功率分配控制策略[J]. 电力系统自动化, 2018, 42(21): 154-159.
Chen Guodong, WuJianqing, SunYue, et al. Power distribution control strategy of wireless power transfer system with dual-pickup coils based on mutual inductance difference[J]. Automation of Elec- tric Power Systems, 2018, 42(21): 154-159.
[16] 麦瑞坤, 陆立文, 李勇. 两逆变器并联IPT系统的环流消除方法研究[J]. 电工技术学报, 2016, 31(3): 8-15.
Mai Ruikun, Lu Liwen, Li Yong.Circulating current elimination of parallel dual-inverter for IPT systems[J]. Transactions of China Electrotechnical Society, 2016, 31(3): 8-15.
[17] 尚捷, 贾建波, 戴欣, 等. 面向低压输入MC-WPT系统高增益桥式补偿网络研究[J]. 重庆大学学报, 2021, 44(7): 82-98.
Shang Jie, Jia Jianbo, Dai Xin, et al.Research on high gain bridge compensation network for low voltage input MC-WPT system[J]. Journal of Chongqing University, 2021, 44(7): 82-98.
[18] 何祥瑞, 荣灿灿, 刘明海. 基于无线电能传输系统多线圈结构参数优化设计[J]. 电工技术学报, 2021, 36(增刊2): 404-411.
He Xiangrui, Rong Cancan, Liu Minghai.Optimi- zation design of multi-coil structure parameters based on wireless power transfer system[J]. Transactions of China Electrotechnical Society, 2021, 36(S2): 404-411.
[19] 卢伟国, 陈伟铭, 李慧荣. 多负载多线圈无线电能传输系统各路输出的恒压特性设计[J]. 电工技术学报, 2019, 34(6): 1137-1147.
Lu Weiguo, Chen Weiming, Li Huirong.Multi-load constant voltage design for multi-load and multi-coil wireless power transfer system[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1137-1147.
[20] 刘姜涛, 邓其军. 并联多逆变器驱动的大功率无线电能传输系统研发[J]. 武汉大学学报(工学版), 2020, 53(2): 168-175.
Liu Jiangtao, Deng Qijun.Development of high power wireless power transfer system driven by multiple inverters in parallel[J]. Engineering Journal of Wuhan University, 2020, 53(2): 168-175.
[21] 罗成鑫, 丘东元, 张波, 等. 多负载无线电能传输系统[J]. 电工技术学报, 2020, 35(12): 2499-2516.
Luo Chenxin, Qiu Dongyuan, Zhang Bo, et al.Wireless power transfer system for multiple loads[J]. Transactions of China Electrotechnical Society, 2020, 35(12): 2499-2516.
[22] 李厚基, 刘明, 杨煜志, 等. 基于E类逆变电路的宽负载范围软开关无线充电补偿网络研究[J/OL]. 中国电机工程学报: 1-14[2022-10-14].
Li Houji, Liu Ming, Yang Yuzhi, et al.Research on wide load range soft switching wireless charging compensation network based on class e inverter circuit[J/OL]. Proceedings of the CSEE, 1-14 [2022-10-14].
[23] 王春芳, 岳睿, 李厚基, 等. 基于单管电路的恒流恒压无线充电系统研究[J]. 电工技术学报, 2021, 36(22): 4637-4647, 4657.
Wang Chunfang, Yue Rui, Li Houji, et al.Research on constant-current and constant-voltage wireless charging system based on single-switch circuit[J]. Transactions of China Electrotechnical Society, 2021, 36(22): 4637-4647, 4657.
[24] Roslaniec L, Jurkov A S, Bastami A A, et al.Design of single-switch inverters for variable resistance/load modulation operation[J]. IEEE Transactions on Power Electronics, 2015, 30(6): 3200-3214.
[25] 陈天牧, 曾国宏, 王静, 等. 抑制电流纹波的模块化多电平直流变换器移相调制策略[J]. 电力系统自动化, 2021, 45(21): 206-214.
Chen Tianmu, Zeng Guohong, Wang Jing, et al.Phase-shifted modulation strategy of modular multi- level DC/DC converter for current ripple supper- ssion[J]. Automation of Electric Power Systems, 2021, 45(21): 206-214.