Electrolytic Capacitor Ripple Current Analysis of SPWM NPC Three-Level Inverter

被引：0
|
作者：
Li, Jianrui [1 ,3 ]
Chen, Quan [1 ,3 ]
Li, Guoli [1 ,2 ]
Hu, Cungang [2 ,4 ]
Hu, Rui [1 ,4 ]
机构：
[1] Anhui Univ, Sch Elect Engn & Automat, Hefei, Anhui, Peoples R China
[2] Anhui Univ, Natl Engn Lab Energy Saving Motor & Control Techn, Hefei, Anhui, Peoples R China
[3] Anhui Univ, Engn Res Ctr Power Qual, Minist Educ, Hefei, Anhui, Peoples R China
[4] Anhui Univ, Anhui Prov Lab Ind Energy Saving & Safety, Hefei, Anhui, Peoples R China
来源：
PROCEEDINGS OF THE 2018 13TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA 2018) | 2018年
关键词：
three-level inverter; Pulse Width Modulation (PWM); electrolytic capacitor; ripple current; reliability;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Neutral point clamped (NPC) three level inverter is widely used in high voltage and high power applications. The capacitance of DC bus plays an important role in the inverter. The DC capacitor current and neutral point current affect the lifetime of the electrolytic capacitor. The equivalent circuit model of electrolytic capacitor and the analytical expression of ripple current are analyzed in this paper. Finally, the validity of the expression is verified with simulation in MATLAB/Simulink.
引用
收藏
页码：222 / 226
页数：5
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