基于SVPWM的三相新型谐振直流环节逆变器  

Novel Three Phase Resonant DC-link Inverter Based on SVPWM Strategy

作　　者：李志军[1] 奚文霞 刘爽[1] 张珈玮[1] 张仔坤 王娟[1] 张川博 LI Zhijun;XI Wenxia;LIU Shuang;ZHANG Jiawei;ZHANG Zikun;WANG Juan;ZHANG Chuanbo(School of Control Science and Engineering,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学控制科学与工程学院,天津300130

出　　处：《电气传动》2017年第7期26-31,共6页Electric Drive

基　　金：河北省科技支撑计划项目(15212105D)

摘　　要：为了使逆变器具有更高的效率、功率密度和可靠性,提出了一种结构简单、控制方便的谐振直流环节逆变器。给出软开关的工作原理解析和各个模态下的等效电路图,并使用SVPWM调制方法降低谐波含量,提高电压利用率,且三相逆变器开关管实现了ZVS。通过Matlab/Simulink仿真工具进行模型搭建,验证该谐振直流环节逆变器的正确性、可行性和有效性。In order to make the inverter with higher efficiency,power density and reliability,a resonant DC-link inverter with simple topology and convenient control was proposed.The analysis of soft-switching principle and the equivalent circuits at different operation modes was given.SVPWM method was used to reduce the harmonic content and improve the voltage utilization.And the switches of a three-phase inverter could be turned on under the ZVS condition.The model was built by Matlab/Simulink tools,and the results show that the resonant DC-link inverter is correct,feasible and valid.

关 键 词：直流环节 谐振逆变器 空间矢量脉宽调制 零电压开关 

分 类 号：TM464[电气工程—电器]