电子学报 ›› 2019, Vol. 47 ›› Issue (9): 1994-1997.DOI: 10.3969/j.issn.0372-2112.2019.09.025

• 科研通信 • 上一篇    下一篇

具有软开关功能的三相谐振直流环节逆变器

王强1,2, 郭国先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:2019-04-08 修回日期:2019-05-06 出版日期:2019-09-25
    • 作者简介:
    • 王强 男,1981年10月出生于辽宁省沈阳市,博士,现为辽宁石油化工大学信息与控制工程学院副教授,硕士研究生导师,主要研究方向为软开关变换器的电路拓扑及控制.E-mail:master2007@126.com;郭国先 男,1993年10月出生于河南省滑县,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:2907267998@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)

Three-Phase Resonant DC Link Inverter with Soft-Switching Function

WANG Qiang1,2, GUO Guo-xiang1,2, 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:2019-04-08 Revised:2019-05-06 Online:2019-09-25 Published:2019-09-25
    • Supported by:
    • National Natural Science Foundation of China (No.51207069); Natural Science Foundation of Liaoning Province  (Guide Plan) (No.20170540586); Scientific Research Cultivation Fund of Liaoning Shihua University (No.2016PY-016)

摘要: 为实现三相逆变器节能运行,提出一种具有软开关功能的三相谐振直流环节逆变器.直流侧的辅助谐振电路将参与换流过程,使直流环节电压在桥臂上的主开关动作之前变化到零,主开关能完成零电压软切换动作,通过降低开关损耗来实现逆变器节能运行.分析了1个开关周期内的电路工作流程.实验结果显示开关器件动作时处于软切换.因此,该辅助谐振电路结构对于研发节能型三相逆变器具有参考价值.

关键词: 节能, 逆变器, 辅助谐振电路, 软开关, 开关损耗

Abstract: In order to realize the energy-saving operation of three-phase inverter, a novel three-phase resonant DC(Direct Current) link inverter with soft-switching function is proposed. The auxiliary resonant circuit on the DC side can participate in the commutation process, making the DC link voltage change to zero before the main switches act on the bridge arm. Therefore, the main switches can achieve the zero-voltage soft-switching action, and realize the energy-saving operation of the inverter by reducing the switching loss. The workflows of the circuit are analyzed. The experimental results show that the switching devices are in the state of soft switching. The structure of the auxiliary resonant circuit has reference value for research and development of an energy-saving three-phase inverter.

Key words: energy-saving, inverter, auxiliary resonant circuit, soft-switching, switching loss

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