电子学报 ›› 2019, Vol. 47 ›› Issue (9): 2012-2016.DOI: 10.3969/j.issn.0372-2112.2019.09.028

• 科研通信 • 上一篇    下一篇

具有提升直流环节稳态电压功能的单相全桥谐振直流环节逆变器

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:2018-04-27 修回日期:2018-06-25 出版日期:2019-09-25 发布日期:2019-09-25
  • 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)

Single-Phase Full-Bridge Resonant DC Link Inverter with the Function of Improving Steady Voltage Across DC Link

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:2018-04-27 Revised:2018-06-25 Online:2019-09-25 Published:2019-09-25

摘要: 为改善直流电压利用率,提出了一种具有提升直流环节稳态电压功能的单相全桥谐振直流环节软开关逆变器,利用辅助电路中的变压器可以将电能补充到直流母线上等效为电压源的钳位电容,使直流环节稳态电压高于直流电源电压,提高了逆变器输出线电压的基波幅值和直流电压利用率.文中分析了电路的工作状态.在4kW样机上的实验结果表明逆变器的主开关和辅助开关能完成软切换.因此,该拓扑结构对于研发高性能谐振直流环节逆变器具有一定的借鉴意义.

关键词: 逆变器, 软开关, 变压器, 谐振, 直流电压利用率

Abstract: A single-phase full-bridge resonant DC(Direct Current) link soft-switching inverter with the function of improving steady voltage across DC link is proposed to improve the utilization of DC voltage.The electrical energy can be supplemented via the transformer in the auxiliary circuit to the clamp capacitor equivalent to the voltage source on the DC bus so that the steady voltage across DC link is higher than the DC power supply voltage,which improves the fundamental wave amplitude of the output line voltage and DC voltage utilization ratio of the inverter.This paper analyzes the working process of the circuit.The experimental results on the 4kW prototype show that the main switch and auxiliary switch of the inverter can achieve soft-switching.Therefore,the proposed topology has certain reference significance for the development of high-performance resonant DC link inverters.

Key words: inverter, soft-switching, transformer, resonance, DC voltage utilization

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