摘要
针对单相逆变器主电路中IGBT开关瞬间产生冲击电压的问题,提出一种缓冲电路及参数优化设计方法。通过分析缓冲电路的工作原理,推导出参数选取公式。在理论分析的基础上,设计了一台300 W单相逆变器的缓冲电路。实验结果表明:所设计的缓冲电路能够有效抑制IGBT关断时的尖峰电压,保证逆变器可靠运行。
In order to solve the problem that the voltage of the IGBT switch in the main circuit of the single-phase inverter generates an impulse voltage in time,a snubber circuit and parameter optimization design method are proposed. Based on the analysis of the working principle of the snubber circuit,the parameter selection formula is derived. Based on the theoretical analysis,a buffer circuit of 300 W single-phase inverter is designed. The experimental results show that the design of the snubber circuit can effectively suppress the peak voltage of IGBT turn off and ensure the reliable operation of the inverter.
作者
贾永博
杨春
张媛
JIA Yongbo;YANG Chun;ZHANG Yuan(Shaanxi Railway Institute,Shaanxi Weinan 714000,China;Xi an Aeronautical Polytechnic Institute,Xi an 710089,China)
出处
《工业仪表与自动化装置》
2018年第3期44-47,共4页
Industrial Instrumentation & Automation
基金
陕西铁路工程职业技术学院2016年第二批科研基金(KY2016-32)
关键词
缓冲电路
优化设计
逆变器
过电压
snubber circuit
optimal design
inverter
overvoltage
