Open AccessResearch on Improved Arc Model of Isolating Switch and VFTO Characteristics
Author(s) -
Zhuangzhuang Yang
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2168/1/012021
Subject(s) - arc (geometry) , overvoltage , waveform , time domain , electric arc , mechanics , transient (computer programming) , computer science , voltage , electrical engineering , physics , engineering , electrode , mechanical engineering , quantum mechanics , computer vision , operating system
The simulation of very Fast Transient overvoltage (VFTO) requires an accurate isolating switch arc model. Based on gas discharge theory, the trend of electron number in the gap is analyzed by particle continuity equation simulation. Based on this, the traditional time-domain arc resistance model is improved, and combined with the characteristics of time-domain arc resistance model, dynamic arc model and normal distribution, the improved arc model is established, which conforms to the physical law of arc discharge process of isolating switch. The simulation model of simulation experiment platform was established, and the simulation waveform obtained by the improved arc model, exponential resistance arc model and other arc models was compared with the experimental waveform to prove the accuracy of improved arc model.