摘要
针对传统电弧模型在电弧电流高频特征仿真中具有的局限性,提出了一种考虑电弧电流高频特征的阻抗电弧模型。在电弧电阻的基础上,模型考虑了弧柱电感、弧隙电容以及弧隙两侧的线路参数,将电弧电流看成由低频电流和高频电流两部分组成,分别由低频通路和高频通路产生。通过Simulink仿真和实测波形的对比,验证了阻抗电弧模型的准确性及其在串联故障电弧仿真方面的可行性。
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.
作者
高小庆
陈晓军
鲍光海
GAO Xiaoqing;CHEN Xiaojun;BAO Guanghai(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China;Zhejiang Tengen Electric Co.,Ltd.,Yueqing 325604,China)
出处
《电器与能效管理技术》
2021年第3期6-12,共7页
Electrical & Energy Management Technology
基金
福建省科技计划项目资助(2018H0014)。
关键词
串联故障电弧
阻抗电弧模型
高频电弧电流
高频通路
低频通路
series arc faults
impedance arc model
high-frequency arc current
high-frequency path
low-frequency path
