电子学报 ›› 2021, Vol. 49 ›› Issue (1): 167-170.DOI: 10.12263/DZXB.20191330

• 学术论文 • 上一篇    下一篇

具有低能耗辅助电路的三相谐振极逆变器

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:2019-12-01 修回日期:2020-01-15 出版日期:2021-01-25
    • 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)

Three-Phase Resonant Pole Inverter with Low-Loss Auxiliary Circuit

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:2019-12-01 Revised:2020-01-15 Online:2021-01-25 Published:2021-01-25

摘要: 为优化三相逆变器的效率,提出了一种具有低能耗辅助电路的三相谐振极逆变器,其各相桥臂上分别设置了辅助电路.在辅助电路工作时,主开关可实现零电压软切换,辅助开关可实现零电流软切换,使开关损耗明显降低.此外,在辅助电路的谐振状态结束之后,谐振电感中的剩余电能将只通过1个二极管回馈给储能电容,降低了电能回馈时的辅助电路损耗,有利于实现辅助电路的低能耗.说明了电路的工作流程。实验波形显示主开关和辅助开关能完成软切换.该研究成果对于研发高效率三相逆变器具有参考意义.

 

关键词: 逆变器, 桥臂, 辅助电路, 谐振, 低能耗, 软开关, 开关损耗

Abstract: In order to optimize the efficiency of three-phase inverter,a three-phase resonant inverter with low-loss auxiliary circuit is proposed,in which auxiliary circuit is set up on the bridge arm of each phase.When the auxiliary resonant circuit works in the commutation process of the inverter,the main switches can achieve zero-voltage soft-switching,and the auxiliary switches can achieve zero-current soft-switching.The switching loss is obviously reduced.In addition,after the resonance state of the auxiliary circuit ends,the remaining electric energy in the resonant inductance will be fed back to the energy-storage capacitance through only one diode,reducing the loss of the auxiliary circuit when the electric energy is fed back,which is beneficial to the realization of the low-loss of the auxiliary circuit.In this paper,the working flow of the circuit is illustrated.The experimental waveforms show that both the main switch and the auxiliary switch achieve soft-switching.The research findings have reference for the research and development of high-efficiency three-phase inverter.

 

Key words: inverter, bridge arm, auxiliary circuit, resonance, low-loss, soft-switching, switching loss

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