摘要
为了提高微型直流断路器灭弧的可靠性,以微型直流断路器灭弧过程为研究对象,分析了电弧运动轨迹,研究微型直流断路器中永磁体在不同位置的磁性强弱对电弧电动力的影响,并利用Ansoft Maxwell软件对其进行仿真计算。仿真结果表明,在同一位置下,加强永磁体的磁性可以提高电弧电动力,加快电弧进入灭弧室的速度,从而提高灭弧的可靠性,为进一步提高微型直流断路器灭弧可靠性研究提供了重要参考依据。
In order to improve the reliability of the arc extinguishing of a miniature DC circuit breaker,the present paper takes the arc extinguishing process of the miniature DC circuit breaker as the research object.Firstly,the arc motion track is analyzed.Then,the influence of the magnetic strength of the permanent magnet in different positions on the arc electrodynamic force is studied,and Ansoft is used.The simulation results show that strengthening the magnetic property of the permanent magnet at the same position can improve the arc electrodynamic force,accelerate the speed of the arc entering the arc chamber,and improve the reliability of the arc extinguishing,which provides an important reference for further improving the reliability of the arc extinguishing of the miniature DC circuit breaker.
作者
陈晋生
迟长春(指导)
刘佳
CHEN Jinsheng;CHI Changchun;LIU Jia(School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)
出处
《上海电机学院学报》
2020年第3期144-148,共5页
Journal of Shanghai Dianji University
关键词
微型直流电路断路器
电弧电动力
永磁体
可靠性
miniature DC circuit breaker
arc electrodynamics force
permanent magnet
reliability