空间约束下电动汽车无线充电系统磁耦合结构优化

doi:10.19595/j.cnki.1000-6753.tces.230569

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Abstract Electric vehicle wireless charging systems in size and position offset can lead to the degradation of the system transmission capability. The system's output power, transmission efficiency, and anti-migration ability under space-constraint conditions should be improved while considering the safety of electromagnetic radiation. This paper proposes a double-layer magnetic coupling structure of asymmetric D4 and D4Q coils to improve the coupling coefficient and anti-migration ability.
Firstly, the basic magnetic coupling structure model of electric vehicles is defined, and the mutual inductance model of bilateral LCC resonance topology is established. Regarding the space constraint problem, the asymmetric D4 coil is designed to improve the anti-deviation ability. In order to make up for the decrease in coupling coefficient caused by the weakening of magnetic coupling at the middle gap of the magnetic coupling structure, the asymmetric D4 coil magnetic coupling structure is designed based on the D4 coil. Maxwell equations simulate different coil offsets, and the relationship between coupling coefficient and lateral offset, longitudinal offset distance, transmission vertical distance, and rotation Angle offset is analyzed.
Four different magnetic coupling structures, namely asymmetric D4 magnetic coupling structure at the receiving and sending end, symmetrical D4 coil magnetic coupling structure at the receiving and sending end, asymmetric D4Q magnetic coupling structure at the receiving and sending end, and rectangular symmetric magnetic coupling structure at the receiving and sending end, are simulated and tested in different directions of migration, rotation, and multiple migrations. The test shows that the asymmetric D4Q double-layer coil can transmit radio energy within a 300 mm transverse offset, 400 mm longitudinal offset, 230 mm transmission distance, and 45° rotational offset. According to different magnetic coupling structures, a wireless charging experimental system platform is built. Transverse and longitudinal migration tests are carried out under a load resistance of 10 Ω and vertical transmission distance of 150 mm. The experimental results verify the superiority of the proposed asymmetric D4Q magnetic coupling structure.
The following conclusions can be drawn from the simulation analysis: (1) The asymmetric D4Q double- layer coil at the receiving and sending end can transmit radio energy within the transverse offset of 300 mm, the longitudinal offset of 400 mm, the transmission distance of 230 mm and the rotational offset of 45°. (2) The asymmetric D4Q magnetic coupling structure at the receiving and sending end is superior to the other three magnetic coupling mechanisms in maximum output power and transmission efficiency. (3) Compared with the symmetric D4 magnetic coupling structure at the receiving and sending end, the maximum output power of the asymmetric D4Q magnetic coupling structure at the receiving and sending end is increased by about 37.7%, and the maximum transmission efficiency is increased by 11%.

Key words： Electric cars wireless charging compensation circuit topology magnetically coupled structure platform building

Received: 26 April 2023

PACS:	TM131.4+1
	U469.72

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	Xu Xianfeng
	Wu Huiling
	Yang Xiongzheng
	Lu Yong
	Li Longjie

Cite this article:

Xu Xianfeng,Wu Huiling,Yang Xiongzheng等. Optimization of Magnetically Coupled Structure of Wireless Charging System for Electric Vehicles under Space Constraint[J]. Transactions of China Electrotechnical Society, 2024, 39(12): 3581-3588.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.230569 OR https://dgjsxb.ces-transaction.com/EN/Y2024/V39/I12/3581

[1] 窦润田, 张献, 李永建, 等. 磁耦合谐振无线电能传输系统电磁屏蔽应用发展与研究综述[J]. 中国电机工程学报, 2023, 44(15): 6020-6039.
Dou Runtian, Zhang Xian, Li Yongjian, et al.Review of application development and research of elec- tromagnetic shielding in magnetic coupling resonant wireless power transmission system[J]. Proceedings of the CSEE, 2023, 44(15): 6020-6039.
[2] Bai H K, Costinett D, Tolbert L M, et al.Charging electric vehicle batteries: wired and wireless power transfer: exploring EV charging technologies[J]. IEEE Power Electronics Magazine, 2022, 9(2): 14-29.
[3] 李建坡, 王一钧, 杨涛, 等. 多负载磁耦合谐振式无线电能传输系统特性分析[J]. 电网技术, 2021, 45(2): 722-729.
Li Jianpo, Wang Yijun, Yang Tao, et al.Transmission characteristic research on multi-loads wireless power transfer via magnetic coupling resonance[J]. Power System Technology, 2021, 45(2): 722-729.
[4] Chen Yang, Yang Bin, Kou Zhihao, et al.Hybrid and reconfigurable IPT systems with high misalignment tolerance for constant-current and constant-voltage battery charging[J]. IEEE Transactions on Power Electronics, 2018, 33(10): 8259-8269.
[5] Machura P, Li Q.A critical review on wireless charging for electric vehicles[J]. Renewable and Sustainable Energy Reviews, 2019, 104: 209-234.
[6] Mohamed A A S, Shaier A A, Metwally H. An overview of inductive power transfer technology for static and dynamic EV battery charging[J]. Trans- portation Electrification: Breakthroughs in Electrified Vehicles, Aircraft, Rolling Stock, and Watercraft, 2022: 73-104.
[7] Pucci N, Arteaga J M, Kwan C H, et al.Induced voltage estimation from class EF switching harmonics in HF-IPT systems[J]. IEEE Transactions on Power Electronics, 2021, 37(4): 4903-4916.
[8] Jayalath S, Khan A.Design, challenges, and trends of inductive power transfer couplers for electric vehicles: a review[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 9(5): 6196-6218.
[9] 薛明, 杨庆新, 章鹏程, 等. 机器人随机位置下动态无线供电阵列式发射模组优化设计[J]. 电工技术学报, 2022, 37(24): 6319-6331.
Xue Ming, Yang Qingxin, Zhang Pengcheng, et al.Optimal design of dynamic wireless power trans- mitting array module in random position of robot[J]. Transactions of China Electrotechnical Society, 2022, 37(24): 6319-6331.
[10] 刘杰. 电动汽车无线充电系统的设计与实现[D]. 南京: 东南大学, 2019.
Liu Jie.Design and implementation of wireless charging system for electric vehicle[D]. Nanjing: Southeast University, 2019.
[11] 崔淑梅, 宋贝贝, 王志远. 电动汽车动态无线供电磁耦合机构研究综述[J]. 电工技术学报, 2022, 37(3): 537-554.
Cui Shumei, Song Beibei, Wang Zhiyuan.Overview of magnetic coupler for electric vehicles dynamic wireless charging[J]. Transactions of China Elec- trotechnical Society, 2022, 37(3): 537-554.
[12] Suzuki K, Hata K, Imura T, et al.SS and SP topology analysis for capacitive power transfer with resonance coupling based on power factor consideration[C]// IECON 2018-44th Annual Conference of the IEEE Industrial Electronics Society, Washington, DC, USA, 2018: 4846-4851.
[13] 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.
[14] 刘健辰, 张淏源, 刘傲阳, 等. 动态无线充电下电气化交通网-配电网运行机理与协同优化[J]. 电力系统自动化, 2022, 46(12): 107-118.
Liu Jianchen, Zhang Haoyuan, Liu Aoyang, et al.Operation mechanism and co-optimization for electrified transportation-distribution networks with dynamic wireless charging[J]. Automation of Electric Power System, 2022, 46(12): 107-118.
[15] 赵靖英, 张振远, 张珂. 基于H_∞ 非线性控制器的电动汽车无线充电系统的副边控制设计与参数优化[J]. 电工技术学报, 2022, 37(3): 566-577.
Zhao Jingying, Zhang Zhenyuan, Zhang Ke.Control design and parameter optimization on secondary side of electric vehicle wireless charging system based on H_∞ nonlinear controller[J]. Transactions of China Electrotechnical Society, 2022, 37(3): 566-577.
[16] 陈志鑫, 张献, 沙琳, 等. 基于频率调节的电动汽车无线充电互操作性提升方法研究[J]. 电工技术学报, 2023, 38(5): 1237-1247.
Chen Zhixin, Zhang Xian, Sha Lin, et al.Research on improving interoperability of electric vehicle wireless power transfer based on frequency adjustment[J]. Transactions of China Electrotechnical Society, 2023, 38(5): 1237-1247.
[17] 田勇, 冯华逸, 田劲东, 等. 电动汽车动态无线充电系统输出电流模型预测控制[J]. 电工技术学报, 2023, 38(9): 2310-2322, 2447.
Tian Yong, Feng Huayi, Tian Jindong, et al.Model predictive control for output current of electric vehicle dynamic wireless charging systems[J]. Transactions of China Electrotechnical Society, 2023, 38(9): 2310-2322, 2447.
[18] 王玮, 鲍光婕, 孟涛, 谭林林. 双边LCL无线供电系统恒流参数设计及特性研究[J]. 电气工程学报, 2022, 17(4): 203-210.
Wang Wei, Bao Guangjie, Meng Tao, Tan Linlin. constant current parameter design and characteristic research of bilateral LCL wireless power transmission system[J]. Journal of Electrical Engineering, 2022, 17(4): 203-210.