矿用电气设备电缆电磁干扰建模与仿真分析

Modeling and simulation analysis of electromagnetic interference of cables of mine-used electrical equipment

分析了互连电缆的电磁干扰机理,建立了多导体互连线串扰耦合数学模型;运用有限元分析软件Ansys提取了矿用四芯电缆互联线的电容矩阵和电感矩阵;应用场路结合的方法对电子设备互连电缆进行电磁干扰预测分析,得到了与理论分析相一致的数值计算结果。

Electromagnetic interference mechanism of interconnect cables was analyzed,and mathematical model of multi-conductor interconnect crosstalk coupling was established.Capacitance matrix and inductance matrix of mine-used four-core interconnect cables were extracted using the finite element analysis software Ansys.The electromagnetic interference of interconnect cables of electronic equipment was predicted and analyzed applying field-road combined method,and the numerical calculation result was consistent with the theoretical analysis result.