| 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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| 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(Z1):25-31. |
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| 作者姓名： | 李艳红 刘国强 张超 安慧林 |
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| 作者单位： | 中国科学院电工研究所工程电磁场及应用技术研究部 北京 100190; 中国科学院大学 北京 100049 |
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| 基金项目： | 国家自然科学基金资助项目(51207150、51407175)。 |
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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 |
Broadband Power Converter for Wireless Power Transfer System via Coupled Magnetic Resonances |
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| 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. |
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| Keywords: | Wireless energy transfer broadband converter class-E power amplifier resonator matching |
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