Lifetime evaluation of high energy density capacitor based experimental investig ations

摘要

High energy density (HED) capacitor made of metallized polypropylene film possesses characteristics of high reliability and is widely used in the pulsed power system. Self-healings in HEDC result in small vaporization area of the metallized electrode and slow capacitance decreasing. And in order to achieve a long life characteristic, the MPPFC should be designed to age gracefully with a predictable lifetime.