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首页> 外文期刊>IEEE Transactions on Power Electronics >Modeling and Optimization of Magnetically Coupled Resonant Wireless Power Transfer System With Varying Spatial Scales
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Modeling and Optimization of Magnetically Coupled Resonant Wireless Power Transfer System With Varying Spatial Scales

机译：空间尺度变化的磁耦合谐振无线电力传输系统建模与优化

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摘要

Previous work reveals that the magnetically coupled resonant (MCR) wireless power transfer (WPT) technology is efficient and practical for mid-range wireless energy transmission, able to handle nontrivial amount of power. Due to the variable coupling coefficient under lateral misalignment and angular misalignment between transmitting coils and receiving coils, the output power and transmission efficiency will fluctuate, leading to instability of the system. This paper presented an equivalent analytical model for the MCR WPT system to incorporate spatial misalignments. The mutual inductance formulas were derived when receiving coils are laterally, angularly or generally misaligned from transmitting coils. The relationship among the output power, transmission efficiency, the mutual inductance, and load resistance were analyzed in detail. For the design of the MCR WPT system, it is necessary to seek optimal transmission performance under different applications. To achieve maximum output power and high stability of power transfer in a specific misalignments range, a normalization method based on the obtained analytical model was introduced, providing critical insight into the optimal design of coils. Relative design considerations and optimization procedures were further stated. Experiments had also been carried out to evaluate the accuracy of theoretical analysis and confirm the validity of the proposed optimization method.
机译：先前的工作表明，磁耦合谐振（MCR）无线功率传输（WPT）技术对于中距离无线能量传输非常有效且实用，能够处理少量的功率。由于在发射线圈和接收线圈之间在横向未对准和角度未对准的情况下可变的耦合系数，因此输出功率和传输效率将发生波动，从而导致系统不稳定。本文提出了一种等效的MCR WPT系统分析模型，其中包含了空间未对准问题。当接收线圈与发射线圈横向，成角度或大体上未对准时，可以得出互感公式。详细分析了输出功率，传输效率，互感和负载电阻之间的关系。对于MCR WPT系统的设计，有必要在不同的应用中寻求最佳的传输性能。为了在特定的失准范围内实现最大输出功率和功率传递的高稳定性，引入了基于所获得的分析模型的归一化方法，从而对线圈的最佳设计提供了重要的见识。进一步阐述了相关的设计考虑因素和优化程序。还进行了实验，以评估理论分析的准确性，并确认所提出的优化方法的有效性。

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  • 来源
    《IEEE Transactions on Power Electronics》 |2017年第4期|3240-3250|共11页
  • 作者

    Fuxin Liu; Yong Yang; Dan Jiang; Xinbo Ruan; Xuling Chen;

  • 作者单位

    Jiangsu Key Laboratory of New Energy Generation and Power Conversion, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Jiangsu Key Laboratory of New Energy Generation and Power Conversion, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Jiangsu Key Laboratory of New Energy Generation and Power Conversion, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Jiangsu Key Laboratory of New Energy Generation and Power Conversion, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coils; Inductance; Power generation; Capacitors; Topology; Resistance; Magnetic resonance;

    机译：线圈;电感;发电;电容器;拓扑;电阻;磁谐振;

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