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Resonant inductive-coupling configurations with load-independent transfer-parameters for wireless power transfer – a perspective from the transformer equivalent-models
EPE Journal ( IF 0.5 ) Pub Date : 2017-12-26 , DOI: 10.1080/09398368.2017.1418048
Carlos Marques 1
Affiliation  

ABSTRACT In inductive power transfer (IPT), the possibility of load regulation (voltage or current regulation) in some resonant configurations has been reported in previous works. However, the underlying formalism is still incomplete or too involved, obscuring the fundamental aspects. In this paper, the author exposes the causes and possibilities of load regulation from the perspective of some equivalent models of the linear transformer, in a unifying and systematic approach that eases the design process. The equivalent models of interest are based on two or three uncoupled inductors and on the ideal transformer or the ideal gyrator. Based on these models, the author presents several possible resonant configurations, some of them absent from the IPT literature. In all these configurations, the alignment concept is extensively used for a clear categorization of the related load-regulation phenomena. However, the main novelty of the paper is on the three-inductor models: the author demonstrates that there are an infinite number of such models, which enable an infinite number of load-regulation possibilities, opening new research paths. At last, the author presents an efficient 250 W contactless connector system with intrinsic voltage regulation as a practical application example of some of the principles exposed in this paper.

中文翻译:

用于无线功率传输的具有与负载无关的传输参数的谐振电感耦合配置——从变压器等效模型的角度来看

摘要 在感应功率传输 (IPT) 中,之前的工作已经报道了某些谐振配置中负载调节(电压或电流调节)的可能性。然而,潜在的形式主义仍然不完整或过于复杂,掩盖了基本方面。在本文中,作者从线性变压器的一些等效模型的角度,以简化设计过程的统一和系统方法揭示了负载调节的原因和可能性。感兴趣的等效模型基于两个或三个非耦合电感器和理想变压器或理想回转器。基于这些模型,作者提出了几种可能的谐振配置,其中一些在 IPT 文献中没有。在所有这些配置中,对齐概念广泛用于相关负载调节现象的清晰分类。然而,该论文的主要新颖之处在于三电感模型:作者证明存在无限数量的此类模型,从而实现无限数量的负载调节可能性,开辟了新的研究路径。最后,作者介绍了一种具有固有电压调节功能的高效 250 W 非接触式连接器系统,作为本文所揭示的一些原理的实际应用示例。
更新日期:2017-12-26
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