中国电机工程学报2017，Vol.37Issue(6)：1867-1874,8.DOI:10.13334/j.0258-8013.pcsee.160160
采用同轴相位检测线圈的感应无线电能传输系统谐振调节技术
Coaxial Phase Detection Coil and Its Application for Dynamic Resonance Tuning in Inductive Wireless Power Transfer Systems
摘要
Abstract
Inductive wireless power transfer (IWPT) systems generally operate at their resonant condition for maximum output power and maximum transfer efficiency.IWPT systems sometimes deviate their resonant states due to unavoidable parameter changes,thus it is essential to explore resonance detection methods for effective tuning.However,since it is difficult to detect the induced voltage in the secondary circuit,detecting resonance by comparing the phases of induced voltage and current would be impractical.Therefore,a coaxial coil wound along the secondary coil was first introduced for tuning point detection in the secondary circuit with its basic principle discussed in detail.This paper then proposed a tuning method based on phase-controlled capacitor and the aforementioned coaxial phase detection coil for controlling the resonance of the secondary circuit dynamically.A constant current-fed IWPT system was set up for experimental verification.When the primary coil was fed with llA rms current,the result shows an output power rise from 508.92W to 577.41W,and a transfer efficiency boost from 85.24％ to 88.98％ after applying the proposed tuning method.This verifies the feasibility of coaxial phase detection coil for dynamic resonance tuning in IWPT systems.关键词
感应无线电能传输/动态调谐/相控电容器/相位检测Key words
inductive wireless power transfer (IWPT)/dynamic tuning/phase-controlled capacitor/phase detection分类
信息技术与安全科学引用本文复制引用
杨鸣凯,麦瑞坤,徐丹露,马林森,何正友..采用同轴相位检测线圈的感应无线电能传输系统谐振调节技术[J].中国电机工程学报,2017,37(6):1867-1874,8.基金项目
国家自然科学基金项目(51507147) （51507147）
铁路总公司科技研究开发计划课题(2014J013-B) （2014J013-B）
牵引动力国家重点实验室自主研究课题资助项目(2016TPL_T11).Project Supported by National Natural Science Foundation of China (51507147) （2016TPL_T11）
Scientific R&D Program of China Railway Corporation (2014J013-B) （2014J013-B）
Independent Research Funding of Traction Power State Key Laboratory(2016TPL_T11). （2016TPL_T11）
