节能型单相全桥谐振极逆变器  

An Energy-Saving Single-Phase Full-Bridge Resonant Pole Inverter

作　　者：王强[1,2] 岳远韶[1,2] 王天施 刘晓琴[1,2] WANG Qiang;YUE Yuan-shao;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》2019年第6期1216-1219,共4页Acta Electronica Sinica

基　　金：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)

摘　　要：单相全桥逆变器处于硬开关状态时,随着开关频率的增大,开关损耗明显增大,影响逆变器效率的提高.为解决这一问题,提出了一种节能型单相全桥谐振极逆变器,在逆变器处于死区状态时,将要开通的主开关并联的谐振电容的电压能减小至零,主开关动作时能完成零电压软切换,双向辅助开关动作时能完成零电流软切换.讨论了电路的工作流程,实验结果表明主开关和辅助开关完成了软切换动作.该单相全桥软开关逆变器可以向高开关频率的场合推广应用.When a single-phase full-bridge inverter works in the hard-switching state,the switching loss will increase significantly with the increasing of switching frequency,so that it will affect the efficiency of the inverter.In order to solve this problem,an energy-saving single-phase full-bridge resonant pole inverter is proposed.When the inverter is in the dead state,the voltage across the resonant capacitor in parallel with the main switch can decrease to zero via the resonance of the auxiliary circuit.The main switch can achieve zero-voltage switching,and the bidirectional auxiliary switch can realize zero-current switching.The operation process of the circuit in a switching cycle is analyzed.The experimental results show that the main switch and auxiliary switch can realize soft-switching.Therefore,the single-phase full-bridge soft-switching inverter can be applied at high switching frequency.

关 键 词：逆变器 死区 双向开关 零电压开关 零电流开关 

分 类 号：TM464[电气工程—电器]