摘要
通过对圆柱体电容器内部压强进行计算分析,研究提升电容器寿命的方法。首先分析得出,电容器内部层间压强的提高可以减小自愈能量,降低脉冲放电过程中的电容量损失,因此可以提升电容器寿命。其次,提出了电容器内部层间压强的计算模型。试验结果表明:通过合理的热处理工艺,电容器寿命可提高30%;当外包膜层数从20层增加到100层时,电容器寿命提高38%。
This paper concentrates on the inner pressure in the cylindrical metallized polypropylene film capacitor(MPPFC) winding.Firstly,the influences of inner pressure on self-healing and lifetime are investigated.Lifetime can be extended by inner pressure strengthening.Secondly,an inner pressure calculation formula is presented.Finally,the experimental results show that lifetime can be extended by 30% with rational heat treatment and by 38% when the number of wrapped films increases from 20to 100.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2014年第4期124-128,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(51377070)
关键词
金属化膜电容器
层间压强
电容器寿命
热处理
外包膜
metallized film capacitor
inner pressure
capacitor lifetime
heat treatment
wrapped film
