具有软开关功能的新型三相谐振极逆变器  

Novel Three-Phase Resonant Pole Inverter with Soft-Switching Function

作　　者：王强[1,2] 曹睿[1,2] 王天施 刘晓琴[1,2] WANG Qiang;CAO Rui;WANG Tian-shi;LIU Xiao-qin(College of Information and Control Engineering,Liaoning Shihua University,Fushun,Liaoning 113001,China;National Experimental Teaching Demonstration Center of Petrochemical Process Control,Fushun,Liaoning 113001,China)

机构地区：[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

出　　处：《电子学报》2022年第5期1277-1280,共4页Acta Electronica Sinica

基　　金：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)。

摘　　要：为使三相逆变器实现高效率运行,本文提出了具有软开关功能的新型三相谐振极逆变器.当逆变器进入死区状态时,辅助电路将开始谐振,桥臂上将要开通的主开关承受的电压可先变为零,主开关可实现零电压动作,同时辅助开关可实现零电流动作.此外,辅助开关与瞬态电压抑制二极管相连,在电路处于谐振状态时,能避免辅助开关承受过高的高频瞬态电压.本文阐述了电路的工作过程.实验结果证明开关器件处于软切换状态.该电路结构能优化逆变器性能.To realize high-efficiency operation,a novel three-phase resonant pole inverter with soft-switching function is proposed.When the inverter is in dead-zone state,the auxiliary circuit will start to resonate.The voltage across the main switch on the bridge arm which will be turned on can become zero in advance,so it can obtain zero-voltage soft switching,and the auxiliary switch can also obtain zero-current soft switching.In addition,the auxiliary switch is connected with the transient voltage suppression diode,which can not make the auxiliary switch bear excessive high frequency transient voltage when the circuit is in resonant state.The working process is illustrated.The experimental results show that switching devices is in the state of soft switching.The circuit structure can optimize the performance of the inverter.

关 键 词：逆变器 桥臂 死区 谐振 高效率 软开关 瞬态电压 

分 类 号：TM464[电气工程—电器]