无线电传输在双线圈及四线圈系统中耦合模理论.docVIP

Transmission of Wireless Power in Two-Coil and Four-Coil Systems using Coupled Mode Theory Manasi Bhutada, Vikaram Singh, ChiragWarty Dept. of Electrical and Electronics Engineering Intelligent Communication Lab Mumbai, India 无线电传输在双线圈及四线圈系统中的耦合模理论 电气与电子工程系 智能通信实验室 印度，孟买 姓名： 学号： 班级： 日期：2016年7月2日 Abstract—Wireless Power Transfer (WPT) systems are considered as sophisticated alternatives for modern day wired power transmission. Resonance based wireless power delivery is an efficient technique to transfer power over a relatively long distance. This paper presents a summary of a two-coil wireless power transfer system with the design theory, detailed formulations and simulation results using the coupled mode theory (CMT). Further by using the same theory, it explains the four-coil wireless power transfer system and its comparison with the two-coil wireless transfer power system. A four-coil energy transfer system can be optimized to provide maximum efficiency at a given operating distance. Design steps to obtain an efficient power transfer system are presented and a design example is provided. Further, the concept of relay is described and how relay effect can allow more distant and flexible energy transmission is shown. 摘要——无线电源传输（WPT）系统被认为是复杂的现代有线输电的替代品。基于共振无线电力传输技术在一个相对较长的距离里能有效的传输电力。本文总结了双线圈的无线电力传输系统的设计理论, 并利用耦合模式理论(CMT)得到详细的方法和仿真结果。利用该理论也解释了双线圈无线电力传输系统与四线圈无线传输电力系统。四线圈电力传输系统可以在给定的操作距离里优化并提供最高的效率，并提出了有效的功率传输系统的设计步骤和设计实例。此外，对中继器的概念进行了描述，并展示了如何利用中继更灵活和更遥远的传输电力。 1. INTRODUCTION Wireless Power Transmission (WPT) is the propagation of electrical energy from a power source to an electrical load without the use of interconnecting wires or physical medium. Wireless power transfer is useful in cases where interconnecting wires are difficult, hazardous or non-existent. Wireless power transfer is becoming popular for induction heating, charging of consumer electronics (electric toothbrush), biomedical implants, radio frequency identification (RFI