高压电器2026，Vol.62Issue(1)：60-68,9.DOI:10.13296/j.1001-1609.hva.2026.01.008
不同参数条件下直流接触器电弧开断特性的仿真研究
Simulation Study on Arc Interruption Characteristics of DC Contactor Under Different Parameters
摘要
Abstract
DC contactors are widely used in the breaking,control and protection of electric circuit.The arc interrup-tion characteristics of DC contactors is of great importance for its operating reliability.In this paper a two-dimension-al arc simulation model of DC contactors based on the magneto-hydrodynamic(MHD)theory is set up,which compre-hensively considers the influence of such factors as external load circuit,contact motion and uneven external magnet-ic field on the arc characteristic of contactors.The current-voltage variation curve and temperature field distribution during the arc interruption period of the DC contactor under different key parameters are simulated and studied.The simulation result shows that the higher the breaking speed of the contact,the shorter the arcing time.The higher the gas pressure in the interrupter,the shorter the arcing time.The best arc interruption performance of hydrogen under the action of different interrupting media is the best.In case of arc interruption with gas media with different ratio,the higher the contents of the hydrogen,the shorter the arcign time.The correctness of the simulation result is verified by the experimental result.关键词
电弧特性/直流接触器/触头分断速度/灭弧室气压/灭弧介质Key words
arc characteristics/DC contactor/contact breaking speed/gas pressure of interrupter/arcing extin-guishing media引用本文复制引用
王立军,刘桐齐,黄一凡,李威,马强,吕文卿..不同参数条件下直流接触器电弧开断特性的仿真研究[J].高压电器,2026,62(1):60-68,9.基金项目
国家自然科学基金项目(52377157).Project Supported by National Natural Science Foundation of China(52377157). （52377157）
