Revisiting Two-Port Network Analysis for Wireless Power Transfer (WPT) Systems

P. Jayathurathnage, M. Vilathgamuwa, C. Simovski
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引用次数: 11

Abstract

This paper discusses the applicability of the two- port network model for the analysis of wireless power transfer (WPT) systems. The two-port network model has been extensively used to analyze microwave circuits, and identical principles have been applied to WPT. The standard gain parameters defined for the two-port networks are critically analyzed with regards to WPT systems. The usefulness and the practical limitations of the gain parameters are highlighted. In addition to power transfer efficiency (PTE), an alternative gain parameter, square voltage gain is defined to estimate the power transfer capability of the WPT system. The proposed performance indices are then computed in terms of generalized two-port network parameters along with a generalized optimization methodology. A case study is presented for the optimization of a WPT system with a repeater.
无线电力传输(WPT)系统的双端口网络分析
本文讨论了双端口网络模型在无线电力传输系统分析中的适用性。双端口网络模型在微波电路分析中得到了广泛的应用,同样的原理也被应用到WPT中。针对WPT系统,对双端口网络的标准增益参数进行了严格的分析。强调了增益参数的实用性和实际局限性。除了功率传输效率(PTE)外,还定义了一个可选增益参数——电压平方增益来估计WPT系统的功率传输能力。然后根据广义双端口网络参数和广义优化方法计算所提出的性能指标。给出了一个带中继器的WPT系统的优化实例。
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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