采用磁通可控可变电感的无线充电动态调谐  

Dynamic Tuning Method for Wireless Charging System Based on the Magnetic Flux Controllable Inductor

作　　者：刘浩 李振杰 田育弘 宋文龙[1] LIU Hao;LI Zhenjie;TIAN Yuhong;SONG Wenong(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《哈尔滨理工大学学报》2023年第5期11-18,共8页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(52107001);中央高校基本科研业务费专项资助项目(2572019BF10)。

摘　　要：无线充电系统作为新型电能传输方式,虽然大幅度地改善电能传输的安全性、便捷性和灵活性,但是由于无源元件的参数漂移与配谐误差等因素影响,实际应用时通常难以保证系统谐振状态,从而限制无线充电系统的工作性能。提出一种采用磁通可控电感的无线充电系统动态调谐方法,具备连续可调、功耗较小以及结构简单等特性。首先,阐释失谐对无线充电系统输出功率的影响;其次,分析失谐检测电路与磁通可控电感的工作原理;最后,基于PLECS电路仿真验证了采用磁通可控可变电感实现系统动态调谐的可行性,电容参数变化范围在10%以内时保证输出功率恒定。As a new power transmission mode,wireless charging system greatly improves the safety,convenience and flexibility of power transmission.However,due to the influence of factors such as parameter drift and harmonic matching error of passive components,it is usually difficult to ensure the resonance state of the system in practical application,which limits the working performance of wireless charging system.Therefore,this paper proposes a dynamic tuning method of wireless charging system using flux controllable inductor,which has the characteristics of continuous adjustment,low power consumption and simple structure.Firstly,the influence of detuning on the output power of wireless charging system is explained.Secondly,the working principle of detuning detection circuit and flux controllable inductor is analyzed.Finally,based on PLECS circuit simulation,the feasibility of using flux controllable inductor to realize dynamic tuning of the system is verified.When the variation range of capacitance parameters is less than 10%,the output power is guaranteed to be constant.

关 键 词：无线电能传输 可控电感 动态调谐 

分 类 号：TM561[电气工程—电器]