Dynamic Wireless Charging Performance Enhancement for Electric Vehicles: Mutual Inductance, Power Transfer Capability, and Efficiency

IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium Pub Date : 2023-10-02 DOI:10.3390/vehicles5040072

Kantipudi V. V. S. R. Chowdary, Kundan Kumar, Byamakesh Nayak, Abhay Kumar, Manuele Bertoluzzo

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Abstract

Electric vehicles are becoming more popular as an alternative to conventional gasoline-powered vehicles. In order to strengthen charging infrastructure, dynamic wireless charging (DWC) is a promising technology through which the vehicle battery can be continuously charged while the vehicle is in motion. The main challenge of the DWC system is to investigate the capability for power transfer with the variation in operating parameters in consideration of enhanced efficiency. This study proposes an innovative approach to improve the performance of dynamic wireless charging systems by investigating the magnetic coupler via finite element analysis, exploring power pulsation and mutual inductances with variations in longitudinal, lateral, and air gap distances as variable factors. In addition to this, efficiency analysis is also explored with respect to the mutual inductance and various compensation schemes. The simulation studies are carried out using computer-assisted software, i.e., COMSOL Multiphysics 5.5 and MATLAB version 2022b. Finally, a comparative analysis of power transferred, mutual inductance, and efficiency is presented by the compensation schemes.

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电动汽车动态无线充电性能提升:互感、功率传输能力和效率

作为传统汽油动力汽车的替代品，电动汽车正变得越来越受欢迎。为了加强充电基础设施，动态无线充电(DWC)是一种很有前途的技术，可以在车辆行驶过程中对汽车电池进行持续充电。DWC系统的主要挑战是在考虑提高效率的情况下，研究随运行参数变化的功率传输能力。本研究提出了一种创新的方法来提高动态无线充电系统的性能，通过有限元分析研究磁耦合器，探索功率脉动和互感在纵向、横向和气隙距离变化时的变化。除此之外，还探讨了互感和各种补偿方案的效率分析。仿真研究采用计算机辅助软件COMSOL Multiphysics 5.5和MATLAB version 2022b进行。最后，对各补偿方案的功率转移、互感和效率进行了比较分析。

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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IEEE Intelligent Vehicles Symposium. IEEE Intelligent Vehicles Symposium

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