Research on circuit analysis and optimization of wireless power transmission system with embedded coil

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Circuit World Pub Date : 2022-06-08 DOI:10.1108/cw-12-2021-0325

Han Liu, Guojin Yang, Rong Wang

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Abstract

Purpose The wireless power transmission (WPT) system with an embedded coil will achieve a more flexible charging operation and higher system efficiency. However, the comprehensive analysis considering cross-coupling for WPT with embedded coil is rarely investigated. This study aims to improve the system efficiency of WPT with the embedded coil based on circuit analysis and optimization of embedded coil loops. Design/methodology/approach The circuit model of WPT system with the non-resonant compensated embedded coil is developed by taking the cross-coupling of all coils and the circuit compensation degree of the embedded coil into consideration. On the basis of system characteristics analysis, optimization of embedded coil position and non-resonant compensation are proposed to improve the efficiency of WPT system with embedded coil. Experimental studies demonstrate the correctness of theoretical research. Findings The WPT system with embedded coil designed by optimizing the position and non-resonant compensation achieves higher efficiency than those of the system with two-coil mode and the three-coil system with a resonant compensated embedded coil. Practical implications A WPT system with embedded coil could be more efficient by using a non-resonant compensated coil embedded into the buffer material of the storage box for sophisticated electrical equipment. Originality/value The cross-coupling between all coils is considered in circuit analysis for WPT system with embedded coil. Optimization of the position and non-resonant compensation of embedded coil achieves higher efficiency.

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嵌入式线圈无线输电系统的电路分析与优化研究

目的采用嵌入式线圈的无线输电系统将实现更灵活的充电操作和更高的系统效率。然而，考虑交叉耦合的嵌入式线圈WPT的综合分析很少被研究。本研究旨在通过对嵌入式线圈回路的电路分析和优化，提高嵌入式线圈WPT的系统效率。设计/方法/方法考虑所有线圈的交叉耦合和嵌入线圈的电路补偿程度，建立了具有非谐振补偿嵌入线圈的WPT系统的电路模型。在系统特性分析的基础上，提出了嵌入式线圈位置的优化和无谐振补偿，以提高嵌入式线圈WPT系统的效率。实验研究证明了理论研究的正确性。通过优化位置和非谐振补偿设计的嵌入式线圈WPT系统比双线圈模式和谐振补偿嵌入式线圈的三线圈系统获得了更高的效率。实际意义具有嵌入式线圈的WPT系统可以通过使用嵌入复杂电气设备存储箱缓冲材料中的非谐振补偿线圈来提高效率。独创性/价值在具有嵌入式线圈的WPT系统的电路分析中考虑了所有线圈之间的交叉耦合。嵌入式线圈的位置优化和非谐振补偿实现了更高的效率。

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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来源期刊

Circuit World 工程技术-材料科学：综合

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Circuit World is a platform for state of the art, technical papers and editorials in the areas of electronics circuit, component, assembly, and product design, manufacture, test, and use, including quality, reliability and safety. The journal comprises the multidisciplinary study of the various theories, methodologies, technologies, processes and applications relating to todays and future electronics. Circuit World provides a comprehensive and authoritative information source for research, application and current awareness purposes. Circuit World covers a broad range of topics, including: • Circuit theory, design methodology, analysis and simulation • Digital, analog, microwave and optoelectronic integrated circuits • Semiconductors, passives, connectors and sensors • Electronic packaging of components, assemblies and products • PCB design technologies and processes (controlled impedance, high-speed PCBs, laminates and lamination, laser processes and drilling, moulded interconnect devices, multilayer boards, optical PCBs, single- and double-sided boards, soldering and solderable finishes) • Design for X (including manufacturability, quality, reliability, maintainability, sustainment, safety, reuse, disposal) • Internet of Things (IoT).