电容器
材料科学
电容
聚丙烯
脉冲功率
电极
电气工程
薄膜电容器
电流密度
缩放比例
光电子学
下降(电信)
电流(流体)
分析化学(期刊)
电子工程
复合材料
电压
物理
化学
工程类
数学
几何学
色谱法
量子力学
作者
Hua Li,Bowen Wang,Zhiwei Li,Liu De,Haoyuan Li,Qin Zhang,Fuchang Lin,Yaohong Chen
出处
期刊:IEEE Transactions on Dielectrics and Electrical Insulation
[Institute of Electrical and Electronics Engineers]
日期:2014-06-01
卷期号:21 (3): 957-963
被引量:15
标识
DOI:10.1109/tdei.2014.6832237
摘要
Metallized polypropylene film capacitors (MPPFCs) are the key components in pulsed power systems. The self-healing property guarantees MPPFCs, application under high electric fields. This paper mainly concentrates on the effect of the pulsed discharge current on the lifetime performance. The end connection peak current density (I d ) and reversal coefficient (ß) are two critical parameters which affect the lifetime. Experiments are designed to investigate the lifetime under different Id and ß. The results indicate that the lifetime is sensitive to ß. Empirically derived lifetime-scaling equation is given to predict the lifetime under different ß. When Id is higher than 13 A/m, the electrode fracture might occur in the MPPFCs and the probability of the sudden capacitance drop will increase. Therefore, this phenomenon results in lifetime reduction.
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