Pareto optimization of circular power pads for contactless electric vehicle battery charger

2016 IEEE Industry Applications Society Annual Meeting Pub Date : 2016-10-01 DOI:10.1109/IAS.2016.7731853

M. Moghaddami, Arash Anzalchi, A. Moghadasi, A. Sarwat

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引用次数: 18

Abstract

Design optimization of circular power pads for inductive power transfer (IPT) systems with applications in electric vehicle battery charger is proposed. A multi-objective optimization coupled with 2D finite element analysis (FEA) is used to find the Pareto-optimal solutions for circular magnetic structures considering different objective functions, such as power transfer efficiency, material cost, and horizontal misalignment tolerance of the IPT system. 2D FEA is used to calculate self and mutual inductances between primary and secondary pads, ohmic loss in coils, core loss in ferrites, stray loss in aluminum shields and electromagnetic field (EMF) emissions of the system. Practical limitations of the power electronic converters such as frequency, VA rating, operating quality factor, and EMF emissions are all considered in the proposed optimization. A 10 kW electric vehicle battery charger IPT system with circular power pads is investigated as the case study and Pareto-optimal solutions for this system are presented. Experimental test results on one of the Pareto-optimal solutions are in good agreement with the calculations using the proposed method. The proposed design optimization method provides a tool for finding highly efficient, flexible and cost-effective solutions for contactless electric vehicle battery charger.

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非接触式电动汽车电池充电器圆形电源垫的Pareto优化

提出了一种适用于电动汽车电池充电器的感应功率传输系统的圆形电源垫的优化设计方法。考虑IPT系统的功率传递效率、材料成本和水平偏差容限等不同目标函数，采用多目标优化与二维有限元分析相结合的方法求解圆形磁性结构的pareto最优解。采用二维有限元法计算了系统的一次和二次焊盘间的自感和互感、线圈中的欧姆损耗、铁氧体中的铁芯损耗、铝屏蔽中的杂散损耗和电磁场发射。提出的优化方案考虑了电力电子变换器的频率、伏安额定值、运行质量因数和EMF辐射等实际限制。以带有圆形电源垫的10 kW电动汽车电池充电器IPT系统为例，给出了该系统的pareto最优解。其中一个帕累托最优解的实验结果与本文方法的计算结果吻合较好。所提出的设计优化方法为寻找高效、灵活、经济的非接触式电动汽车电池充电器解决方案提供了工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 IEEE Industry Applications Society Annual Meeting

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