宽频磁耦合谐振式无线电能传输系统电源变换器技术

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摘要设计了一种宽频磁耦合谐振式无线电能传输系统变换器,采用E类功率放大器为主电路拓扑,对电路性能进行分析,通过优化工作状态和匹配网络,提高系统的负载功率和传输效率。同时对系统的宽频特性进行优化,结合发射、接收谐振器负载网络匹配设计,对变换器在不同谐振频率、不同谐振器下的传输特性进行分析。并利用设计的变换器进行了宽频范围0.15~8MHz、传输距离30cm的仿真和实验研究,在宽频范围内实现零电压开通和关断的工作状态,提高了宽频系统效率,完成了理论、仿真分析和实验的相互验证。

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关键词 ：无线电能传输, 宽频变换器, E类功率放大器, 谐振器匹配

Abstract：Broadband power converter for wireless power transfer system via coupled magnetic resonances was designed in this paper, the performance of power converter which adopts class-E amplifier was analyzed, the efficiency and the load power were improved by optimizing the working states and matching network. Combining the design of matching network of transmitter and receiver resonator, this paper optimizes broadband characteristics of system and analyzes transmission characteristic for various resonant frequencies and resonators. Finally the experimental analysises which are in 0.15~8MHz broadband at 30cm are carried on to verify the theory and simulation, power converter maintains higher system efficiency in wideband working condition.

Key words： Wireless energy transfer, broadband converter, class-E power amplifier, resonator matching

出版日期: 2017-01-04

PACS:

TM464

作者简介: 李艳红女,1982年生,博士研究生,副研究员,研究方向为无线电能传输及多场智能探测。E-mail: liyanhong@mail.iee.ac.cn（通信作者）刘国强男,1971年生,研究员,博士生导师,研究方向为电工电能新技术。E-mail: liuguoqiang@mail.iee.ac.cn

引用本文:

李艳红, 刘国强, 张超, 安慧林. 宽频磁耦合谐振式无线电能传输系统电源变换器技术[J]. 电工技术学报, 2016, 31(增刊): 25-31. Li Yanhong^{1, 2}, Liu Guoqiang^{1, 2}, Zhang Chao^{1, 2}, An Huilin^{1, 2}. Broadband Power Converter for Wireless Power Transfer System via Coupled Magnetic Resonances. Transactions of China Electrotechnical Society, 2016, 31(增刊): 25-31.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I增刊/25

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