电子学报 ›› 2021, Vol. 49 ›› Issue (6): 1224-1227.DOI: 10.12263/DZXB.20190910

• 学术论文 • 上一篇    下一篇

高效率三相谐振极逆变器

王强1,2, 曹睿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:2019-08-12 修回日期:2019-09-24 出版日期:2021-06-25
    • 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;曹睿 男,1997年4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:302955678@qq.com
    • 基金资助:
    • 国家自然科学基金 (No.51207069); 辽宁省教育厅科学研究经费项目 (No.L2019017); 辽宁省自然科学基金指导计划项目 (No.20170540586)

High-Efficiency Three-Phase Resonant Pole Inverter

WANG Qiang1,2, CAO Rui1,2, 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:2019-08-12 Revised:2019-09-24 Online:2021-06-25 Published:2022-06-25
    • Supported by:
    • National Natural Science Foundation of China (No.51207069); Research Fund of Education Department of liaoning Province (No.L2019017); Natural Science Foundation of Liaoning Province  (Guide Plan) (No.20170540586)

摘要: 为优化三相逆变器的性能,提出了一种高效率三相谐振极逆变器.在各相桥臂上增设的辅助谐振电路参与逆变器的换流过程时,桥臂上的各主开关并联的谐振电容的电压能周期性形成零状态,使主开关能完成零电压软切换,而且辅助谐振电路中的各开关器件也能完成零电流软开通和零电压软关断.开关器件实现软切换能降低开关损耗,从而使逆变器实现高效率运行.文中分析了电路的工作流程.3kW样机上的实验结果表明主开关和辅助开关都处于软切换.因此,该拓扑结构对于研发高性能三相逆变器具有借鉴价值.

关键词: 逆变器, 桥臂, 辅助电路, 谐振, 高效率, 软开关

Abstract: In order to optimize the performance of three-phase inverter, a high efficiency three-phase resonant inverter is proposed. When the auxiliary resonant circuit on each phase leg works in the commutation process of the inverter, the voltage across the capacitor parallel with the main switch can periodically change to zero, so that the main switch device can achieve zero-voltage soft switching, and the switching devices in the auxiliary resonant circuit can achieve zero-voltage turn-on and zero-current turn-off. Soft switching can reduce switching loss and improve the efficiency of the inverter. In this paper, the working flow of the circuit is analyzed. The experimental results on the 3kW prototype show that both the main switch and the auxiliary switch achieve soft switching. Therefore, this topology structure has reference for the research and development of high performance three-phase inverter.

Key words: inverter, bridge arm, auxiliary circuit, resonance, high efficiency, soft-switching

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