摘要
逆变电源直流母线的纹波电流是决定逆变电源稳定工作的关键因素之一。纹波电流过大会严重缩短直流母线电容寿命。通过对逆变电路的分析建立了计算逆变电源的纹波电流和最小电容值的计算公式,进而选取合适的电解电容以减小纹波电流并维持系统稳定运行。利用Matlab仿真软件,进一步验证了直流母线电容选取原则的可行性。
The ripple current of inverter power supply direct current (DC)-bus is one of the key factors for stability of the inverter power supply.Large ripple current will severely shorten the life of DC-bus capacitor.The formulas of computing inverter power ripple current and the minimum capacity value are obtained.Through the analysis of the circuit, the appropriate electrolytic capacitor is selected to reduce the ripple current and maintain the system stability.Through the Maflab simulation software to further verify the feasibility of the principle for selecting the DC-bus capacitor.
出处
《电力电子技术》
CSCD
北大核心
2013年第3期93-95,共3页
Power Electronics
关键词
逆变电源
直流母线电容
纹波电流
inverter power supply
direct current-bus capacitor
ripple current
作者简介
作者简介:王正(1962-),男,辽宁沈阳人,博士,教授,研究方向为电力电子与电力传动。