中国电机工程学报2023，Vol.43Issue(23)：9242-9250,9.DOI:10.13334/j.0258-8013.pcsee.221633
基于并联永磁偏置可调电感的无线电能加密传输系统研究
Research on Parallel Permanent Magnet Bias Variable Inductance for Wireless Power Encryption Transmission
摘要
Abstract
The efficiency of wireless power transmission is influenced by switching frequency and resonant parameters.The adoption of tuning device may realize wireless power encryption transmission(WPET)and avoid power theft by unauthorized users.However,the traditional core regulated inductance tuning device has large control losses.Therefore,a parallel permanent magnet bias variable inductor(PMVI)is proposed in this paper.With finite element simulation analysis and related experimental verification,the regulation efficiency of the parallel scheme is more than 3 times that of the traditional scheme,and the fluctuation range affected by the main coil is less than 20％of the traditional scheme,which greatly improves the performance of the adjustable inductance.In addition,by analyzing the frequency sensitivity of resonant network,a set of WPET system based on PMVI is designed and built.The experiments of the WPET system show that the power of the unauthorized and stolen ends is suppressed to less than 5％and 10％of the authorized end respectively,which has proved the effectiveness of the variable inductor work and the anti-power-theft effect of the WPET system.关键词
无线电能加密传输:电感调谐/有限元分析/频率敏感性/谐振网络Key words
wireless power encryption transmission(WPET)/inductance tuning/finite element analysis/frequency sensitivity/resonant network分类
信息技术与安全科学引用本文复制引用
张建忠,王丽,王政..基于并联永磁偏置可调电感的无线电能加密传输系统研究[J].中国电机工程学报,2023,43(23):9242-9250,9.基金项目
国家重点研发计划(2021YFB2500704)National Key R&D Program(2021YFB2500704). （2021YFB2500704）
