As key influence factors on the aging of pulse metallized polypropylene film capacitors, the number of charge–discharge (from 2000 to 8000), temperature (from 40 °C to 100 °C), and electric field is studied in this article based on the extended Debye model. With the increase of the temperature ${T}$ , the charging voltage ${U}_{0}$ , and the number of charge–discharge ${n}$ during aging, the parameters of the extended Debye model change, resulting in the increase of the time constant and the amount of polarization charge. The Maxwell–Wagner model is used to analyze the influence of aging on the parameters of the polarization model. The relationship between the polarization charge and temperature conforms to the Arrhenius law. The charge accumulation of the slow-polarized branch during charge–discharge aging was calculated using the Debye model.

中文翻译：

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脉冲金属化聚丙烯薄膜电容器极化行为对电老化和热老化的依赖性

作为影响脉冲金属化聚丙烯薄膜电容器老化的关键因素，本文基于扩展德拜模型。随着温度的升高 ${T}$, 充电电压 ${U}_{0}$，以及充放电次数 ${n}$在老化过程中，扩展德拜模型的参数发生变化，导致时间常数和极化电荷量增加。Maxwell-Wagner 模型用于分析老化对极化模型参数的影响。极化电荷与温度的关系符合阿累尼乌斯定律。使用德拜模型计算了充放电老化过程中慢极化支路的电荷积累。