摘要
针对传统Y源逆变器器件电压、电流应力过高,产生直流链电压尖峰的问题,提出了一种新型Y源逆变器。逆变器的新型Y源结构可有效减小器件电压、电流应力,附加的L、C、D缓冲电路既能提升电压增益,还可有效抑制直流链电压尖峰。分析了改进型Y源逆变器直流母线电压尖峰产生的原因、新型Y源逆变器电压尖峰抑制的原理,并由数学推导证实了新型Y源逆变器存在抑制电压尖峰的工作过程。在器件应力方面将新型Y源逆变器与改进型Y源逆变器的进行对比,证明了新型Y源逆变器的稳态性能。最后,搭建了新型Y源逆变器与改进型Y源逆变器的实验样机,实验所得数据与理论分析相符,证明了理论分析的正确性和新型逆变器的可行性。
In order to solve the problem of too high voltage and current stress of the power device and salient DC-link voltage spikes of the traditional Y-source inverter,a new type of Y-source inverter is proposed.The new Y-source structure of the inverter can effectively reduce the voltage and current stress of the device.The additional L,C and D buffer circuits can not only improve the voltage gain,but also effectively restrain the DC-link voltage spike.The causes of DC-link voltage spike of the Y-source inverter and the principle of DC-link voltage spike suppression of the new Y-source inverter are analyzed.The working process of restraining voltage spike of the new Y-source inverter is confirmed by mathematical derivation.In terms of component stress,the comparison between the new Y-source inverter and the improved Y-source inverter proves the steady-state performance of the new Y-source inverter.Finally,the experimental prototypes of the novel Y-source inverter and the improved Y-source inverter are built,and the experimental data are consistent with the theoretical analysis,which proves the correctness of the theoretical analysis and the feasibility of the new inverter.
作者
房绪鹏
王煦超
赵冰冰
张胜男
FANG Xupeng;WANG Xuchao;ZHAO Bingbing;ZHANG Shengnan(College of Electrical Engineering and Automation,Shandong University of Science and Technology,Qingdao Shandong 266590,China)
出处
《电子器件》
CAS
北大核心
2023年第6期1509-1516,共8页
Chinese Journal of Electron Devices
基金
山东省重点研发计划项目(2019GGX103049)。
关键词
Y源逆变器
缓冲电路
器件应力
尖峰抑制
高增益
Y source inverter
buffer circuit
device stress
spike suppression
high gain