A New Design Method for Inductive Power Transfer System of Electric Vehicle
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摘要: 针对无线充电技术在电动汽车中的应用,提出了一种新型电力发射系统的设计方法。以矩形线圈和螺旋线圈为研究对象,最终确定采用复合绕组为最佳方案。通过计算单位面积互感系数得到磁通量密度,选择最优匝数和节距以形成均匀磁场,并且运用有限元分析获得发射端偏移容差的性能评估,从而使感应电能传输得到有效提升。模拟出所设计发射端的磁通量密度分布模式,所得结果与预先设计的计算值基本一致。复合结构发射端中,螺旋绕组使用非统一节距时,尽管发射端边缘处磁通量密度不可避免地有所下降,但其它大部分充电区域的磁通量密度仍保持均匀。Abstract: To apply the wireless charging technology to an electric vehicle, a design method for power transmitter has been put forward. Rectangular coils and spiral windings are specially selected for evaluation. The compound winding is chosen for optimization. The magnetic flux density is studied by calculating the mutual inductance per area. By optimally choosing the turns and pitch distances of the spiral winding, a uniform magnetic field is achieved. Using finite element analysis, the performances of the transmitter are evaluated, including its tolerance to misalignment, thus effectively improving the inductive power transmission. The magnetic flux density distribution model of the designed transmitting terminal is simulated, and the simulation results are basically consistent with the calculation amount of the pre-designed model. In the transmitting terminal of a compound structure, when the spiral winding adopts non-uniform pitch, although the magnetic flux density at the edge of transmitting terminal is unavoidably reduced, the magnetic flux densities in most other charging areas still remain uniform.
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Key words:
- wireless charging /
- mutual inductance /
- finite element analysis /
- inductive power /
- offset tolerance
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[1] Qiu C, Chau K T, Ching T W, et al. Overview of wireless charging technologies for electric vehicles[J]. Journal of Asian Electric Vehicles, 2014,12(1):1679-1685 [2] 张辉,王换民,李宁,等.电动汽车无线充电混合补偿拓扑电路分析[J].电力系统自动化,2016,40(16):71-75 Zhang H, Wang H M, Li N, et al. Analysis on hybrid compensation topology circuit for wireless charging of electric vehicles[J]. Automation of Electric Power Systems, 2016,40(16):71-75(in Chinese) [3] 李维汉,赵韩,张坤,等.电动汽车无线充电系统的分析与设计[J].昆明理工大学学报(自然科学版),2015,40(6):65-70 Li W H, Zhao H, Zhang K, et al. Analysis and design of wireless charging system for electric vehicles[J]. Journal of Kunming University of Science and Technology (Natural Science Edition), 2015,40(6):65-70(in Chinese) [4] 张献,章鹏程,杨庆新,等.基于有限元方法的电动汽车无线充电耦合机构的磁屏蔽设计与分析[J].电工技术学报,2016,31(1):71-79 Zhang X, Zhang P C, Yang Q X, et al. Magnetic shielding design and analysis for wireless charging coupler of electric vehicles based on finite element method[J]. Transactions of China Electrotechnical Society, 2016,31(1):71-79(in Chinese) [5] Uchida A, Shimokawa S, Kawano H, et al. Phase and intensity control of multiple coil currents in mid-range wireless power transfer[J]. IET Microwaves, Antennas & Propagation, 2014,8(7):498-505 [6] Al-Kalbani A, Yuce M R, Redoute J M. Electromagnetic interference in brain implants using multiple coils:biosafety and data communication performance[J]. IEEE Transactions on Electromagnetic Compatibility, 2014,56(2):490-493 [7] Juchem C, Nahhass O M, Nixon T W, et al. Multi-slice MRI with the dynamic multi-coil technique[J]. NMR in Biomedicine, 2015,28(11):1526-1534 [8] Hui S Y R, Ho W W C. A new generation of universal contactless battery charging platform for portable consumer electronic equipment[J]. IEEE Transactions on Power Electronics, 2005,20(3):620-627 [9] Qiu C, Chau K T, Liu C H, et al. Quantitative comparison of dynamic flux distribution of magnetic couplers for roadway electric vehicle wireless charging system[J]. Journal of Applied Physics, 2014,115(17):17A334 [10] Yunas J, Majlis B Y, Hamzah A A, et al. Si monolithic planar coreless inductors for high frequency signal transmission[C]//Proceedings of the 2013 IEEE International RF and Microwave Conference (RFM), December 9-11, 2013, Penang. Penang:IEEE, 2013:47-50 [11] Altdorff D, Bechtold M, van der Kruk J, et al. Mapping peat layer properties with multi-coil offset electromagnetic induction and laser scanning elevation data[J]. Geoderma, 2016,261:178-189 [12] Sallan J, Villa J L, Llombart A, et al. Optimal design of ICPT systems applied to electric vehicle battery charge[J]. IEEE Transactions on Industrial Electronics, 2009,56(6):2140-2149 [13] Kissin M L G, Boys J T, Covic G A. Interphase mutual inductance in polyphase inductive power transfer systems[J]. IEEE Transactions on Industrial Electronics, 2009,56(7):2393-2400 [14] Acero J, Carretero C, Lope I, et al. Analysis of the mutual inductance of planar-lumped inductive power transfer systems[J]. IEEE Transactions on Industrial Electronics, 2013,60(1):410-420 [15] Cheng Y H, Shu Y M. A new analytical calculation of the mutual inductance of the coaxial spiral rectangular coils[J]. IEEE Transactions on Magnetics, 2014,50(4):7026806
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