摘要详情

ID / 提交时间

176 / 2024-04-15 16:38:27

标题

Numerical Simulation of Post-arc Current in Vacuum Circuit Breakers based on PIC-MCC and CTM

关键字

Vacuum Circuit Breakers, Post-Arc Current, CTM Current Equation, PIC-MCC Simulation, Dielectric Recovery.

主题及专题

7)Fundamental physics in Switchgear

状态

全文录用

作者

XUBIN LI / University of Liverpool

Joseph Yan / University of Liverpool

jiyan zou / Dalian University of Technology

摘要

Reliable simulation of the post-arc current in vacuum circuit breakers (VCBs) is critical for an in-depth understanding of their dielectric recovery process. The widely used continuous transition model (CTM) fails to capture the dynamic behaviour of charged particles in the contact gap under certain conditions. A novel method that synergizes the PIC-MCC (Particle-In-Cell and Monte Carlo Collision) with the CTM has been developed to calculate the post-arc current, offering both accuracy and detailed spatial and temporal distributions of the plasma parameters. Reasonable agreement has been demonstrated between the simulation results and measured post-arc current (PAC) trace.