LOW VOLTAGE APPARATUS ›› 2021, Vol. 0 ›› Issue (3): 6-7.doi: 10.16628/j.cnki.2095-8188.2021.03.002

• Research & Analysis • Previous Articles     Next Articles

Impedance Arc Model Considering High-Frequency Characteristics of Fault Arc Current

GAO Xiaoqing1, CHEN Xiaojun2, BAO Guanghai1   

  1. 1. College of Electrical Engineering and Automation,Fuzhou University, Fuzhou 350108, China
    2. Zhejiang Tengen Electric Co.,Ltd., Yueqing 325604, China
  • Received:2020-12-14 Online:2021-03-30 Published:2021-04-14

Abstract:

Aiming at the limitations of traditional arc models in the simulation of high-frequency characteristics of arc current,an impedance arc model considering the high-frequency characteristics of arc current was proposed.On the basis of arc resistance,arc column inductance,arc gap capacitance and line parameters on both sides of the arc gap are taken into account in the model.Moreover,the arc current is decomposed into low-frequency current and high-frequency current,which are generated by the low-frequency path and the high-frequency path respectively.Through the comparison of Simulink simulated waveforms and measured waveforms,the accuracy of the impedance arc model and its feasibility in series arc fault simulation are verified.

Key words: series arc faults, impedance arc model, high-frequency arc current, high-frequency path, low-frequency path

CLC Number: