巢湖学院学报 ›› 2022, Vol. 24 ›› Issue (3): 104-110.doi: 10.12152/j.issn.1672-2868.2022.03.015

• 工程与技术 • 上一篇    下一篇

频率跟踪的CLLC谐振型双向DC/DC变换器设计

陈新河,邵瑞:巢湖学院 电子工程学院 刘艳丽:巢湖春晖集团   

  1. 1. 巢湖学院 电子工程学院,安徽 巢湖 238024;2. 巢湖春晖集团,安徽 巢湖 238024
  • 收稿日期:2022-04-17 出版日期:2022-05-25 发布日期:2022-09-07
  • 作者简介:陈新河(1976—),男,安徽宣城人,巢湖学院电子工程学院副教授,主要从事电力电子变换研究。
  • 基金资助:
    巢湖学院重点科研项目(项目编号:XLZ-202009、XLZ-202101);安徽省教育厅项目(项目编号:2020xsxxkc300)

Design of Frequency Tracking CLLC Resonant Bidirectional DC/DC Converter

CHEN Xin-he,SHAO Rui:School of Electronic Engineering, Chaohu University;LIU Yan-li:Chaohu Chunhui Group   

  1. 1. School of Electronic Engineering, Chaohu University, Chaohu Anhui 238024; 2. Chaohu Chunhui Group, Chaohu Anhui 238024
  • Received:2022-04-17 Online:2022-05-25 Published:2022-09-07

摘要: 通过对比各类DC/DC变换器的拓扑特点,选取电源和变压器利用率高,功率密度高的隔离型双向桥直流直流变换器(BDC);为提高电压增益和能量传输效率,改进为谐振型BDC;为实现双向工作特性一致和软开关功能,进一步改进为CLLC谐振型BDC;为实现频率偏移下恒定的电压增益和传输效率,最终设计出频率跟踪的CLLC谐振型BDC。仿真结果表明,所设计的频率跟踪的CLLC谐振型BDC在大频率范围偏移下,无论是正向传输,还是反向传输,都能保持很高的电压增益和能量传输效率,而且双向传输特性基本一致。

关键词: DC/DC变换, 双向变换器, 频率跟踪, 参数设定, 电压增益

Abstract: By comparing the topological characteristics of various DC/DC converters, an isolated bidirectio nal bridge DC/DC converter (BDC) with high power supply and transformer utilization and high power d ensity is selected; in order to improve the voltage gain and energy transmission efficiency, the resonant t ype is improved. BDC; in order to achieve consistent bidirectional operating characteristics and soft switc hing function, it is further improved to CLLC resonant BDC; in order to achieve constant voltage gain a nd transmission efficiency under frequency offset, a frequency tracking CLLC resonant BDC is finally de signed. The simulation results show that the frequency-tracking CLLC resonant BDC designed in this pap er can maintain high voltage gain and energy transmission efficiency under a large frequency range offset, no matter it is forward transmission or reverse transmission, and the bidirectional transmission characteris tics are basically Consistent.

Key words: DC/DC conversion, bidirectional converter, frequency tracking, parameter setting, voltage gain

中图分类号: 

  • TM41