New Analytical Model for the Characterisation of Printed Spiral Coils for Wireless Power Transfer
New Analytical Model for the Characterisation of Printed Spiral Coils for Wireless Power Transfer
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用于无线功率传输的印刷螺旋线圈表征的新分析模型
DOI：
10.1049/cp.2018.1122
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Khan S
中科院分区：
文献类型：
--
作者：
Khan S
使用经皮感应链路的近场无线功率传输 (WPT) 已成为心脏起搏器、心脏复律除颤器和神经修复设备供电的有力竞争者之一。实现 WPT 的一种方案是使用一对印刷螺旋线圈 (PSC) 作为发射器和接收器。需要优化这些 PSC 的物理配置，以实现最大功率传输效率以及对角度和横向偏差的容忍度。本文提出了一种新的分析模型，用于计算自感和互感、交流电阻和寄生电容，以设计用于 WPT 应用的紧凑型螺旋 PSC。所提出的分析模型能够快速计算螺旋 WPT 系统的功率传输效率 (PTE) 分析。完整的优化模型也在 MATLAB 中实现。此外，所有分析结果均已使用 3D 电磁 (EM) 软件 ANSYS MAXWELL 3D 与 Agilent ADS 电路模拟器相结合进行了验证。
Near field wireless power transfer (WPT) using transcutaneous inductive links has become one of the strong contenders for the powering of cardiac pacemaker, cardioverter defibrillators and neuroprosthetic devices. One scheme to achieve WPT is the use of a pair of printed spiral coils (PSC) acting as a transmitter and receiver. Optimization of the physical configuration of these PSC's is needed for maximum power transfer efficiency and tolerance to angular and lateral misalignment. This paper presents a new analytical model for the calculation of the selfand mutual inductances, AC resistance, and parasitic capacitance to design compact spiral PSC's for WPT applications. The proposed analytical model enables the rapid calculation of the power transfer efficiency (PTE) analysis of a spiral WPT system. A complete optimization model is also implemented in MATLAB. Furthermore, all analytical results have been validated using the 3D electromagnetic (EM) software ANSYS MAXWELL 3D combined with Agilent ADS circuit simulator.