电子学报 ›› 2020, Vol. 48 ›› Issue (3): 616-620.DOI: 10.3969/j.issn.0372-2112.2020.03.026

• 科研通信 • 上一篇    下一篇

新型单相软开关AC-DC-AC变换器

王强1,2, 李兵1,2, 王天施1,2, 刘晓琴1,2   

  1. 1. 辽宁石油化工大学信息与控制工程学院, 辽宁抚顺 113001;
    2. 辽宁石油化工大学石油化工过程控制国家级实验教学示范中心, 辽宁抚顺 113001
  • 收稿日期:2018-05-30 修回日期:2018-11-15 出版日期:2020-03-25
    • 通讯作者:
    • 王强
    • 作者简介:
    • 李兵 男,1994年7月出生于辽宁省大连市,现为辽宁石油化工大学信息与控制工程学院硕士研究生,主要研究方向为软开关变换器的电路拓扑及控制.E-mail:651698243@qq.com
    • 基金资助:
    • 国家自然科学基金 (No.51207069); 辽宁省自然科学基金指导计划项目 (No.20170540586); 辽宁石油化工大学国家级科研项目培育基金 (No.2016PY-016)

Novel Single-Phase Soft-Switching AC-DC-AC Converter

WANG Qiang1,2, LI Bing1,2, WANG Tian-shi1,2, LIU Xiao-qin1,2   

  1. 1. College of Information and Control Engineering, Liaoning Shihua University, Fushun, Liaoning 113001, China;
    2. National Experimental Teaching Demonstration Center of Petrochemical Process Control, Fushun, Liaoning 113001, China
  • Received:2018-05-30 Revised:2018-11-15 Online:2020-03-25 Published:2020-03-25
    • Corresponding author:
    • WANG Qiang

摘要: 为改善单相AC-DC-AC变换器的性能,提出了一种单相谐振直流环节零电压开关AC-DC-AC功率变换器拓扑结构,由图腾柱式单相整流器,位于直流环节的辅助谐振电路和单相全桥逆变器组成.利用同一组辅助电路能分别将整流器输出端电压和逆变器输入端电压变化到零,使整流器和逆变器桥臂上的开关器件分别实现零电压切换.分析了电路的工作流程,在1.2kW样机上的实验结果表明开关器件完成了软切换.该拓扑结构对于研发节能型单相AC-DC-AC变换器具有借鉴意义.

关键词: 整流器, 逆变器, 零电压开关, 变压器, 谐振

Abstract: In order to improve the performance of the single-phase AC-DC-AC converter, a single-phase resonant DC link zero-voltage switching AC-DC-AC power converter topology is proposed. It is composed of a totem-pole type single phase rectifier, an auxiliary resonant circuit in the DC link and a single-phase full bridge inverter. The output voltage of the rectifier and the input voltage of the inverter can be changed to zero respectively via the same auxiliary circuit and the switching devices on the arm of the rectifier and inverter can achieve zero-voltage switching respectively. This paper analyzes the working process of the circuit. The experimental results on the 1.2kW prototype show that the switching devices achieved soft switching. The topological structure has reference significance for the development of energy-saving single-phase AC-DC-AC converters.

Key words: rectifier, inverter, zero-voltage switching, transformer, resonance

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