基于加速退化数据的金属化膜脉冲电容器可靠性分析

 基于金属化膜脉冲电容器的失效机理，研究了基于加速退化数据的金属化膜脉冲电容器可靠性评估问题，给出了一个该型电容器的加速退化失效模型和参数统计推断方法。基于试验数据可求得该型电容器可靠性模型中未知参数的估计值分别为9.066 9×10^{-8sup>和0.022 1，将该值代入失效分布函数即可确定电容器的失效模型，由此模型求得该型电容器充放电20 000次的可靠度为0.972 4。使用这种分析方式对金属化膜脉冲电容器进行可靠性分析将更能节省试验时间和费用。}

Failure analysis of metallized film pulse capacitors based on accelerated degradation data

The high energy density self-healing metallized film pulse capacitor has been applied to all kinds of laser facilities for their power conditioning systems, whose reliability and expense are straightforwardly affected by the reliability level of capacitors. Reliability analysis of highly reliable devices, such as metallized film capacitors, is a challenge due to cost and time restriction. Accelerated degradation testing provides a way to predict its life cost and time effectively. A model and analysis based on accelerated degradation data of metallized film capacitors are described. Also described is a method for estimating the distribution of time to failure. The estimation values of the unknown parameters in this model are 9.066 9×10-8 and 0.022 1, respectively. Both the failure probabi