基于直流充电桩的双向谐振变换电路的研究  

Research on Bi-directional Resonant Conversion Circuit Based on DC Charging Pile

作　　者：祝龙记[1] 方亮 张忠成 闫其路 ZHU Long-ji;FANG Liang;ZHANG Zhong-cheng;YAN Qi-lu(Anhui University of Science and Technology,Huainan 232000,China)

机构地区：[1]安徽理工大学,电气与信息工程学院,安徽淮南232000

出　　处：《电力电子技术》2022年第9期84-86,100,共4页Power Electronics

基　　金：国家自然科学基金(U1610120)。

摘　　要：双向DC/DC变换器作为新能源汽车直流充电桩的重要组成部分,需要具有电能双向流动等特点,一般采用电容-电感-电感-电容(CLLC)双向谐振电路。针对CLLC双向谐振电路在DC/DC变换器的应用中易受到负载扰动导致输出电压不稳定的问题,结合CLLC双向谐振变换电路的系统模型,设计了模型辅助线性自抗扰控制直流充电桩充电系统,仿真和实验结果证明该控制下的CLLC谐振变换电路具有动态性能好,电压稳定性高的优点,在直流充电桩中具有广阔的应用前景。As an important part of the DC charging pile of new energy vehicles,the bi-directional DC/DC converter needs to have the characteristics of power bi-directional flow,etc.Generally,the bi-directional resonant circuit of capacitance-inductance-inductance-capacitance(CLLC) is adopted.Aiming at the problem that CLLC bi-directional resonance circuit in the application of DC/DC converter is prone to load disturbance resulting in output voltage instability,combined with the system model of CLLC bi-directional resonance transform circuit,a model-assisted linear active disturbance rejection control DC charging pile charging system is designed.The simulation and experimental results show that the CLLC resonant transform circuit under the control has the advantages of good dynamic performance,small voltage ripple and high voltage stability and has a broad application prospect in DC charging pile.

关 键 词：双向谐振电路 线性自抗扰 动态性能 

分 类 号：TN108.7[电子电信—物理电子学]