摘要
针对感应式无线供电(IPT)系统线圈损耗较大的问题,提出了一种基于倍流整流&半桥逆变(CRHI)和双边LCC补偿网络的电路结构,在保障系统输出电流增益的同时,对线圈中的电流大小进行优化并提升了系统能量传输效率。为进一步降低线圈损耗,针对系统线圈损耗模型进行分析,通过调节接收端的Buck-Boost变流器占空比和发射端的半桥逆变器占空比,在确保输出电流的前提下,将线圈电流比例调节至最优,从而进一步改善系统能量传输效率。实验表明,利用所设计的电路结构和控制方法,可大幅改善IPT系统的传输效率。
Aiming at the issue of the large power loss in the coils of the inductive power transfer(IPT)system,a new structure is proposed based on current-doubler rectifier&half-bridge inverter(CRHI)and the dual-side LCC compensation network.The proposed system optimizes the currents in the coils and improves the system efficiency,while ensuring the output gain of the system.To further reduce the power loss in the coils,the mathematical model for the power loss in the coils is set up and analyzed.With this model,the duty cycles of the Buck-Boost converter and the half-bridge inverter are regulated for optimization of the proportion of the currents in the coils.Thus,a higher system efficiency can be achieved.The experimental results validate that,based on the proposed well-designed circuit structure and the control method,the IPT system energy transmission efficiency can be significantly improved.
作者
孙冰
武杰文
张立臣
SUN Bing;WU Jie-wen;ZHANG Li-chen(CRRC Dalian Co.,Ltd.,Dalian 116022,China)
出处
《电力电子技术》
CSCD
北大核心
2021年第3期35-38,共4页
Power Electronics
基金
国家重点研发计划(2017YFB1201002,2017YFB1201004)。
关键词
感应式无线供电
倍流整流
半桥逆变
效率
inductive power transfer
current-doubler rectifier
half-bridge inverter
efficiency
