基于磁流體動(dòng)力學(xué)的交流接觸器分?jǐn)嚯娀⌒螒B(tài)研究

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中圖分類號(hào)：TM572.2 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2095-8188（2025）05-0034-09

DOI：10.16628/j.cnki.2095-8188.2025.05.005

Abstract：Based on magnetohydrodynamics （MHD） theory，a 3D arc motion model for the dynamic breaking of contacts is established to simulate inthepractical industrial products，makingthe simulation model closer tothe real physical conditionsofarc interruption.The arcmotion process after interruption under diferent initial currents is analyzed.High-speed photography technology is used to carryout the relevant experiments.The comparison and verification with thesimulationresults fully demonstrate theeffctiveness of thesimulation model.Through the simulation studyof arcs interuption under different currents，the location and causes of arc stagnation in the structureare pointedout，thereasons fortheaggravationofarcstagnation during the interuptionof large currents are analyzed，and the theoretical guidance is provided for thesubsequent research and development of such products.

Keywords：contactor；air arc；arc simulation；multi-physics simulation；arc chamber

0 引言

交流接觸器作為電氣系統(tǒng)中的關(guān)鍵組件，其作用是通過(guò)機(jī)械開(kāi)關(guān)操作實(shí)現(xiàn)電路的接通與分?jǐn)?，尤其在工業(yè)自動(dòng)化和配電系統(tǒng)中扮演著不可或缺的角色。（剩余9814字）