首页|基于磁流体动力学的无极性低压直流断路器电弧仿真及性能优化

基于磁流体动力学的无极性低压直流断路器电弧仿真及性能优化

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
针对传统低压直流断路器,电流反向时磁场单向会导致其灭弧能力减弱的问题,建立基于COMSOL无极性低压直流断路器电弧仿真模型.分析在电流反向下无极性低压直流断路器的电弧运动,研究磁场和电流对无极性低压直流断路器灭弧能力的影响.仿真结果表明,无极性低压直流断路器可以消除电流反向对电弧运动的阻碍作用,并在240 mT和16 A下灭弧能力最强.仿真结果和实验结果相吻合,无极性低压直流断路器的灭弧能力在恰当的磁场灭弧能力最强,电流越小灭弧能力最强,变化规律与试验结果一致.
Arc Simulation and Performance Optimization of Non-Polar Low Voltage DC Circuit Breaker Based on Magnetohydrodynamics
In response to the problem that traditional low voltage DC circuit breakers weaken their arc extinguishing ability when the current is reversed due to the unidirectional magnetic field,the arc simulation model of non-polar low-voltage De circuit breaker based on COMSOL is established to analyze the arc motion of non-polar low-voltage Dc circuit breaker under the reverse current.The influence of magnetic field and current on the arc-extinguishing ability of non-polar low-voltage Dc circuit breaker is analyzed.The simulation results show that the non-polar low-voltage De circuit breaker can eliminate the blocking effect of current reversal on arc motion,and the arc extinguishing ability is strongest at 240 mT and 16 A.In addition,the simulation results are consistent with the experimental results.The arc-extinguishing ability of the non-polar low-voltage Dc circuit breaker is the strongest in the appropriate magnetic field,and the smaller the current is,the strongest arc extinguishing ability.

current reversesarc extinguishing abilitytwo-dimensional arc simulationnon-polar low voltage DC circuit breakerarc motion

温惠、郭晓雪、曾馨艺

展开 >

西安工程大学电子信息学院,陕西西安 710600

电流反向 灭弧能力 二维电弧仿真 无极性低压直流断路器 电弧运动

陕西省自然科学基金省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学)开放基金

2021JQ-683EERI_KF2021004

2024

10.16628/j.cnki.2095-8188.2024.02.002

电器与能效管理技术
上海电器科学研究所（集团）有限公司

电器与能效管理技术

影响因子：0.394
ISSN：2095-8188
年,卷(期)：2024.(2)
  • 18