Research on the Accelerated Lifetime Prediction of Film Capacitors
In order to shorten the life assessment cycle and reduce the assessment costs of film capacitors with high-reliability and long-life,the accelerated life prediction method of film capacitors is studied.The temperature is selected as the accelerated stress to carry out the accelerated life test,and the pseudo life data is obtained by linear fitting of the test results according to the attenuation characteristics of capacitance.Based on the Arrhenius acceleration model and Weibull distribution model,the life data and life distribution model of film capacitors under ordinary temperature are obtained.The results show that the accelerated life prediction method is reasonable and effective,which can provide useful reference for the life assessment of capacitors and related products.
film capacitorslifetime predictionaccelerated test
万方数据
维普
