CAJ | 학술논문

金属化膜电容器具有长寿命、高可靠性等特点,因此传统的基于大样本寿命试验数据的统计推断方法在其寿命与可靠性评估中存在困难。为了更加有效地评估金属化膜电容器的寿命与可靠性,提出了一种T型性能退化试验设计方法,该方法将性能退化试验分为若干阶段,每个阶段中参与的电容器个数依次递减,直至极少量电容器完成较长时间的性能退化试验。然后,给出了基于T型性能退化试验数据的可靠性评估方法。最后,结合激光装置能源系统的可靠性评估工作给出了一个应用实例,得到了该型电容器的寿命以及进行10000次和20000次充放电试验后电容器可靠度的点估计与区间估计。结果表明所提出的试验方法在试验样品数、试验时间和试验费用之间较好地取得了一个平衡点,更加有效地评估了金属化膜电容器的寿命与可靠性。
금속화막전용기구유장수명、고가고성등특점,인차전통적기우대양본수명시험수거적통계추단방법재기수명여가고성평고중존재곤난。위료경가유효지평고금속화막전용기적수명여가고성,제출료일충T형성능퇴화시험설계방법,해방법장성능퇴화시험분위약간계단,매개계단중삼여적전용기개수의차체감,직지겁소량전용기완성교장시간적성능퇴화시험。연후,급출료기우T형성능퇴화시험수거적가고성평고방법。최후,결합격광장치능원계통적가고성평고공작급출료일개응용실례,득도료해형전용기적수명이급진행10000차화20000차충방전시험후전용기가고도적점고계여구간고계。결과표명소제출적시험방법재시험양품수、시험시간화시험비용지간교호지취득료일개평형점,경가유효지평고료금속화막전용기적수명여가고성。
Metallized film capacitor is a kind of product with a long lifetime and high reliability,so it is difficult to assess its lifetime and reliability using the traditional statistical inference based on the large sample of data from the lifetime test.To assess the lifetime and reliability of metalized film capacitor more effectively,Firstly,we put forward a type of test called T performance degradation test,which is divided into several stages.During the test,the number of capacitors which are still working decreases stage by stage until the test lasts a long time with very fewer capacitors.Secondly,we put forward a reliability assessment method based on the data from the T performance degradation test.Finally,we give an application on the reliability assessment of the energy system of the laser facility,and obtain the lifetime of capacitor,the point estimation,and interval estimation of the capacitor reliability after 10000 and 20000 charge/discharge cycles.Research results show that a trade-off can be reached among the sample size,testing time and relevant cost by using this type of test.The lifetime and reliability of metalized film capacitor are assessed more effectively.