Dielectric Breakdown
摘要
Metallized film capacitors (MFCs), as the core equipment of flexible DC converter valves, the insulating properties of their dielectric polypropylene (PP) films play an important role in improving the safety and stability of DC support capacitors and even flexible DC converter valves. With the development of high-voltage direct current (HVDC) transmission technology, MFCs towards the direction of high voltage, large capacity development, which puts forward more stringent requirements on the working conditions of the PP film (Xiao et al. in IEEE Trans. Dielect Elect. Insul. 31:160–167, 2024).