基于LC补偿的单开关ECPT系统研究  

Research on single switch ECPT system based on LC compensation

作　　者：牟宪民[1] 李佳霖 郭骥巍 彭峰华 Mu Xianmin;Li Jialin;Guo Jiwei;Peng Fenghua(School of Electrical Engineering,Dalian University of Technology,Dalian 116024,China;State Grid Hunan Electric Power Company Limited,Changsha 410004,China)

机构地区：[1]大连理工大学电气工程学院,辽宁大连116024 [2]国网湖南省电力有限公司,湖南长沙410004

出　　处：《电子技术应用》2022年第7期124-130,共7页Application of Electronic Technique

基　　金：国家自然科学基金(51877025)。

摘　　要：单开关DC-DC变流器的电场耦合式无线电能传输系统可以提高系统的工作频率,但开关管承受的截止电压很高。提出了一种使用LC补偿网络的单开关Buck-Boost电场耦合的无线电能传输系统,引入的LC补偿网络可以降低开关管的电压应力。另一方面,一定程度上减小了输出受负载变化的影响。同时,变流器等效工作在电流源模式,耦合电容较小时可以有效地传输功率。且电路能够实现软开关,电路的控制更加容易和安全。仿真和实验结果表明了理论分析的有效性。The electrical capacitive power transfer(ECPT)system of a single-switch DC-DC converter can increase the operating frequency of the system,but the switching tube is subjected to a high cut-off voltage.This paper proposes a single-switch Buck-Boost radio energy transmission system using LC compensation network.The introduced LC compensation network can reduce the voltage stress of the switching tube.On the other hand,the output is somewhat affected by load changes.At the same time,the converter works in the current source mode,and the coupling power can be used to transmit power efficiently.And the circuit can realize soft switching,and the control of the circuit is easier and safer.Simulation and experimental results show the validity of theoretical analysis.

关 键 词：单开关 LC补偿 电场耦合 无线电能传输 软开关 

分 类 号：TM92[电气工程—电力电子与电力传动]