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.
作者
李志军
奚文霞
刘爽
张珈玮
张仔坤
王娟
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)
出处
《电气传动》
北大核心
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)
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
DC-link
resonant inverter
space vector pulse width modulation
zero voltage switching
