Analysis of Transmitter Unit Switching Mode in Dynamic Wireless Charging for Electric Vehicles
Xue Ming1,2, Wang Jiahao1, Yang Qingxin2, Li Yang1
1. Tianjin Key Laboratory of Advanced Electrical Engineering and Energy Technology Tianjin Polytechnic University Tianjin 300387 China; 2. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China
Abstract:In dynamic wireless charging (DWC) system, the alternate work of multi-transmitters is an effective way to improve the efficiency. Firstly, the paper inferred the mutual inductance expression, and then obtained the conclusion that mutual inductance changes with movement and then affects the transmission power. Secondly, in order to reduce the power fluctuation caused by transmitter switching and improve the stability of DWC system, the working cycle of the minimum dynamic coupling unit was analyzed. Three groups of simulation were designed and compared using the finite element software, which proved the dual coil supply scheme is more effective than alternate power supply scheme in improving mutual inductance and receiving power compared. In addition, a power supply mode with dual coil supply in the optimal range of 0.1m to 0.3m and single coil supply outside the optimal range was proposed. Finally, an experimental platform was built based on the proposed power supply scheme, which shows that the simultaneous power supply of the first and second transmitters in the optimal interval improves the stability of the DWC system and reduces the reduction of receiving power.
薛明, 王嘉浩, 杨庆新, 李阳. 电动汽车动态无线供电系统发射单元切换模式分析[J]. 电工技术学报, 2020, 35(12): 2517-2525.
Xue Ming, Wang Jiahao, Yang Qingxin, Li Yang. Analysis of Transmitter Unit Switching Mode in Dynamic Wireless Charging for Electric Vehicles. Transactions of China Electrotechnical Society, 2020, 35(12): 2517-2525.
[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] 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 Electrotechnical Society, 2017, 32(18): 3-17. [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]. 中国电机工程报, 2013, 33(3): 1-13, 21. 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, 21. [4] 黄学良, 王维, 谭林林. 磁耦合谐振式无线电能传输技术研究动态与应用展望[J]. 电力系统自动化, 2017, 41(2): 2-14, 141. Huang Xueliang, Wang Wei, Tan Linlin.Technical progress and application development of magnetic coupling resonant wireless power[J]. Automation of Electric Power Systems, 2017, 41(2): 2-14, 141. [5] 宋凯, 朱春波, 李阳, 等. 用于电动汽车动态供电的多初级绕组并联无线电能传输技术[J]. 中国电机工程学报, 2015, 35(17): 4445-4453. Song Kai, Zhu Chunbo, Li Yang, et al.Wireless power transfer technology for electric vehicle dynamic charging using multi-parallel primary coils[J]. Proceedings of the CSEE, 2015, 35(17): 4445-4453. [6] 张望, 伍小杰, 夏晨阳, 等. 串/串补偿型无线电能传输系统的建模分析[J]. 电力系统自动化, 2017, 41(10): 135-140. Zhang Wang, Wu Xiaojie, Xia Chenyang, et al.Model analysis of series/series compensated wireless power transfer system[J]. Automation of Electric Power Systems, 2017, 41(10): 135-140. [7] 程岩松, 胡宏民, 叶方圆, 等. 磁耦合谐振式无线电能传输系统建模与仿真[J]. 电工技术, 2018(16): 135-136, 140. Cheng Yansong, Hu Hongmin, Ye Fangyuan, et al.Modeling and simulation of magnetically coupled resonant wireless power transmission system[J]. Electric Engineering, 2018(16): 135-136, 140. [8] 吴德会, 何天府, 王晓红, 等. 感应电能传输中矩形螺线线圈互感耦合的解析建模与分析[J]. 电工技术学报, 2018, 33(3): 680-688. Wu Dehui, He Tianfu, Wang Xiaohong, et al.Analytical modeling and analysis of mutual inductance coupling of rectangular spiral coils in inductive power transfer[J]. Transactions of China Electrotechnical Society, 2018, 33(3): 680-688. [9] 刘洋, 何圣民. 任意空间位置两多边形多匝线圈的互感计算[J]. 价值工程, 2013, 32(31): 235-237. Liu Yang, He Shengmin.The calculation of mutual inductance of two polygons with multiturn coils at arbitrarily position[J]. Value Engineering, 2013, 32(31): 235-237. [10] 蒋成, 孙跃, 王智慧, 等. 电动汽车无线供电导轨切换模式分析[J]. 电力系统自动化, 2017, 41(12): 188-193. Jiang Cheng, Sun Yue, Wang Zhihui, et al.Switching mode analysis of wireless supplying rail for electric vehicles[J]. Automation of Electric Power Systems, 2017, 41(12): 188-193. [11] 朱运晓, 段平平. 基于初级线圈切换的三相无线供电平台设计[J]. 电气传动, 2018, 48(9): 93-96. Zhu Yunxiao, Duan Pingping.Design of three-phase wireless power supply platform based on primary coil switching[J]. Electric Drive, 2018, 48(9): 93-96. [12] 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): 154-163. Chen Guodong, Wu Jianqing, Sun Yue, et al.Power distribution control strategy of wireless power transfer system with dual-pick up coils based on mutual inductance[J]. Automation of Electric Power Systems, 2018, 42(21): 154-163. [13] Zhou Shijie, Mi Chunting.Multi-paralleled LCC reactive power compensation networks and its tuning method for electric vehicle dynamic wireless charging[J]. IEEE Transactions on Industrial Electronics, 2016, 63(10): 6546-6556. [14] Limb B J, Zane R, Quinn J C, et al.Infrastructure optimization and economic feasibility of in-motion wireless power transfer[C]//2016 IEEE Transportation Electrification Conference and Expo (ITEC), Dearborn, MI, 2016: 1-4. [15] Jaehee Kim, Byung-Song Lee, Jun-Ho Lee, et al.Development of 1MW inductive power transfer system for a high speed train[J]. IEEE Transactions on Industrial Electronics, 2015, 62(10): 6242-6250. [16] 孙跃, 张路, 王智慧, 等. 包络调制无线电能传输系统边界条件研究[J]. 电工技术学报, 2017, 32(18): 26-35. Sun Yue, Zhang Lu, Wang Zhihui, et al.Study on boundary conditions of envelope modulated radio transmission system[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 26-35. [17] 张献, 王杰, 杨庆新, 等. 电动汽车动态无线供电系统电能耦合机构与切换控制研究[J]. 电工技术学报, 2019, 34(15): 3093-3101. Zhang Xian, Wang Jie, Yang Qingxin, et al.The power coupling mechanism and switching control for dynamic wireless power supply system of electric vehicle[J]. Transactions of China Electrotechnical Society, 2019, 34(15): 3093-3101. [18] 苑朝阳, 张献, 杨庆新, 等. 无线供电高铁列车非对称耦合机构[J]. 电工技术学报, 2017, 32(18): 18-25. Yuan Chaoyang, Zhang Xian, Yang Qingxin, et al.Asymmetric coupling mechanism of wireless power transmission system for high-speed train[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 18-25.