电工技术学报2017，Vol.32Issue(18)：73-82,10.DOI:10.19595/j.cnki.1000-6753.tces.170735
用于WPT系统的一次侧失谐SS型 补偿拓扑及其参数设计方法
Study of the Primary Side Detuned Series-Series Compensated Topology and Parameter Design for WPT System
摘要
Abstract
Wireless power transfer system needs to transfer power over wide coupling coefficient range. Traditional series-series (SS) compensation method is sensitive to the variation of coupling coefficient, which causes deep impact on the transferred power level. Traditional topology is not suitable for some applications where the coupling coefficient varies greatly. In addition, traditional SS topology exists the potential safety hazard of underloading. In this paper, a primary-side detuned SS compensation method is proposed to provide stable power transfer over wide coupling coefficient range. The power characteristic is analyzed, and the result indicates that this system maintains high misalignment tolerance and avoids the safe problem of underloading. Considering the rated power and power fluctuation, a parameter design method is put forward. Then compared with the traditional fully tuned SS system, the sensitivities of compensated capacity and the state of charge (SOC) are studied. The impact of this detuned method on the efficiency of resonant tank is developed. Finally, experimental results on a 150W prototype verify the proposed primary-side detuned SS topology, where the power transfer is maintained above 80% of its nominal power level and the efficiency of system is more than 76% when the coupling coefficient varies 200%.关键词
无线电能传输/串串补偿/一次侧失谐设计/抗偏移特性/参数设计Key words
Wireless power transfer/SS compensation/primary-side detuned design/tolerance of high misalignment/parameter design分类
信息技术与安全科学引用本文复制引用
胡宏晟,蔡涛,段善旭,刘明海,丰昊..用于WPT系统的一次侧失谐SS型 补偿拓扑及其参数设计方法[J].电工技术学报,2017,32(18):73-82,10.基金项目
国家自然科学基金国际(地区)合作与交流项目(51361130150)资助. （地区）
