多物理场耦合仿真下声波对直流电弧的影响

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摘要：断路器等开关设备是当前直流输配电领域的研究重点与难点，开关电弧是影响断路器等设备性能的重要因素。基于磁流体动力学（MHD）理论，建立了声场影响下的直流电弧仿真模型。通过多物理场的耦合仿真，研究了在声场影响下各物理场与直流电弧的特性及相关性，通过实验对仿真结果进行检验。

关键词：直流电弧；磁流体动力学模型；多物理场仿真；仿真分析；声场

中图分类号：TM501.2

文献标志码：A 文章编号：1672-4348（2023）03-0277-07

Influence of acoustic wave on DC arc under multi-physical coupling simulation

LUO Fengshi 1，2，3， TONG Xin 1，2，3， YANG Changzhou4， LI Yuandong 1，2，3

（1. Fujian Key Laboratory of Intelligent Processing Technology and Equipment， Fuzhou 350118， China;

2. School of Mechanical and Automotive Engineering， Fujian University of Technology， Fuzhou 350118， China;

3. Fujian Numerical Control Equipment Industry Technology Innovation Research Institute， Fuzhou 350118， China;

4. Star-net Ruijie Communication Company， Beijing 100036， China）

Abstract： Switching equipment such as circuit breakers constitutes the focus and difficulty of current research in the field of DC power transmission and distribution. Switching arc is an important factor affecting the performance of equipment such as circuit breakers. Based on the theory of magnetohydrodynamics （MHD）， a simulation model of DC arc under the influence of sound field was established. Through the coupling simulation of multiple physical fields， the characteristics and correlation between each physical field and the DC arc under the influence of the sound field were studied， and the simulation results were verified by experiments.

Keywords： DC arc; magnetohydrodynamic model; multi-physical simulation; simulation analysis; sound field

收稿日期：2022-12-09

基金项目：福建省自然科学基金资助项目（2020J01870）

第一作者简介：罗逢时（1996—），男，江西南昌人，硕士研究生，研究方向：直流电弧仿真。（剩余5959字）