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首页> 外文期刊>IEEE Transactions on Industrial Electronics >An Automatic Impedance Matching Method Based on the Feedforward-Backpropagation Neural Network for a WPT System
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An Automatic Impedance Matching Method Based on the Feedforward-Backpropagation Neural Network for a WPT System

机译：WPT系统中基于前馈-反向传播神经网络的阻抗自动匹配方法

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摘要

In a wireless power transfer (WPT) system via coupled magnetic resonances, the power transfer efficiency (PTE) drastically decreases with the transfer distance or the load changing. In this paper, the causes of efficiency degradation are analyzed, and an automatic impedance matching method based on the feedforward-backpropagation (BP) neural network is proposed to maintain the PTE at a reasonable level. To validate and test the performance of the proposed method, a WPT automatic impedance matching simulation system is implemented. Moreover, a prototype based on the proposed method is built and dynamic matching experiments were performed. The simulation results show that the algorithm efficiency of the proposed BP method is 108.5% higher than that of the genetic algorithm. The experimental results show that the PTE is improved up to 78.33% and this is closely maintained within a distance of 10-30 cm, which is consistent with the simulation result.
机译：在通过耦合磁共振的无线电力传输（WPT）系统中，随着传输距离或负载的变化，功率传输效率（PTE）急剧下降。本文分析了效率降低的原因，并提出了一种基于前馈-反向传播（BP）神经网络的自动阻抗匹配方法，以将PTE维持在合理水平。为了验证和测试该方法的性能，实现了WPT自动阻抗匹配仿真系统。此外，建立了基于该方法的原型，并进行了动态匹配实验。仿真结果表明，所提出的BP算法的算法效率比遗传算法高108.5％。实验结果表明，PTE提高了78.33％，并且在10-30 cm的距离内紧密地保持了这一点，这与仿真结果是一致的。

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  • 来源
    《IEEE Transactions on Industrial Electronics》 |2019年第5期|3963-3972|共10页
  • 作者

    Li Yang; Dong Weihao; Yang Qingxin; Zhao Jingtai; Liu Liu; Feng Shaojie;

  • 作者单位

    Tianjin Polytech Univ, Tianjin Key Lab Adv Elect Engn & Energy Tec, Tianjin 300387, Peoples R China;

    Tianjin Polytech Univ, Tianjin Key Lab Adv Elect Engn & Energy Tec, Tianjin 300387, Peoples R China;

    Tianjin Polytech Univ, Tianjin Key Lab Adv Elect Engn & Energy Tec, Tianjin 300387, Peoples R China;

    Tianjin Polytech Univ, Tianjin Key Lab Adv Elect Engn & Energy Tec, Tianjin 300387, Peoples R China;

    Tianjin Polytech Univ, Tianjin Key Lab Adv Elect Engn & Energy Tec, Tianjin 300387, Peoples R China;

    Tianjin Polytech Univ, Tianjin Key Lab Adv Elect Engn & Energy Tec, Tianjin 300387, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Automatic impedance matching; backpropagation (BP) neural network; wireless power transfer;

    机译：自动阻抗匹配;反向传播（BP）神经网络;无线功率传输;

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