Magnetically coupled resonance wireless power transmission technology (MCR-WPT), as a technological innovation in the electric vehicle industry, is of great significance to promote the development of the electric vehicle industry chain. The current wireless charging technology is affected by the design of the vehicle itself, the distance between the vehicle-mounted part of the wireless charging and the ground is not fixed. And the changeable parking attitude will cause the projection of the transmitting coil and the receiving coil to deviate. Therefore, reasonable matching of transmission frequency, matching impedance and other parameters is of great significance for optimizing power transmission efficiency. This paper establishes a mathematical model of transmission frequency, matching impedance, distance between two coils and wireless power transmission efficiency. Based on the preliminary analysis of 10 experimental data of wireless charging in the laboratory under different coil spacings, the relationship between various parameters and wireless charging efficiency is obtained. In view of the problem of coil offset under actual charging conditions, a nonlinear optimization model for maximizing the efficiency of the MCR-WPT system is proposed. The selected optimization parameters are parameters such as transmission frequency and matching impedance. The goal is to ensure the maximum value of automotive coil offset under high transmission efficiency. In this paper, the optimization model is solved based on the Ant lion optimizer, and the optimal parameter values under the specified working conditions are obtained, and the relative error is less than 3%. When the coil spacing is 10mm, the maximum offset of the coil with a transmission efficiency higher than 80% is 0.3423m, and the RMSE between theoretical and experimental results is less than 0.015. Algorithm optimizes the power transmission efficiency and improved the fault tolerance rate of wireless charging system during parking.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimization of Electric Vehicle Wireless Power Transmission Efficiency Based on Ant Lion Optimizer


    Additional title:

    Sae Int. J. Adv. and Curr. Prac. in Mobility


    Contributors:
    Qi, Fei (author) / Chen, Long (author) / Fan, Longyu (author) / Kong, Qingxin (author) / Lu, Xin (author) / Hu, Zongxian (author)

    Conference:

    WCX SAE World Congress Experience ; 2022



    Publication date :

    2022-03-29


    Size :

    13 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Optimization of Electric Vehicle Wireless Power Transmission Efficiency Based on Ant Lion Optimizer

    Lu, Xin / Fan, Longyu / Kong, Qingxin et al. | British Library Conference Proceedings | 2022


    Transmission efficiency optimization method for wireless electric energy transmission system of electric vehicle

    WANG TIANHAO / YU QUANYI / LI BO et al. | European Patent Office | 2022

    Free access

    Improved Backstepping Control of a DFIG based Wind Energy Conversion System using Ant Lion Optimizer Algorithm

    Zeghdi, Zoubir / Barazane, Linda / Bekakra, Youcef et al. | BASE | 2022

    Free access

    WIRELESS POWER TRANSMISSION SYSTEM FOR ELECTRIC VEHICLE

    LEE BYUNG SONG / LEE SU GIL / LEE JUN HO et al. | European Patent Office | 2016

    Free access

    WIRELESS POWER TRANSMISSION SYSTEM FOR ELECTRIC VEHICLE

    European Patent Office | 2016

    Free access