煤矿井下电机车电磁干扰问题探讨

Discussion on Electric Magnetic Interference Issues of Mine Electrical Locomotive in Underground Coal Mine

数值预测是煤矿井下电磁兼容(EMC)和电磁干扰(EMI)分析的难点问题。针对煤矿井下架线电机车在巷道运行时具有时变、非线性等特点,研究了煤矿井下电机车的电磁干扰特性,提出了电磁兼容分析的有限元法(FEM)分析模型,并利用二维Ansoft Maxwell软件进行仿真测试。结果表明,FEM模型计算与二维Ansoft Maxwell的仿真结果吻合较好,验证了FEM模型在处理非线性、瞬态问题上的有效性。该结果对预估分析煤矿井下设备的电磁干扰问题有实际意义。

The numerical prediction was a difficult problem of the electric magnetic compatible and electric magnetic interference analysis in the underground coal mine. The paper, based on the time variation and non-linear features while the trolley locomotive operated in the roadway of the underground coal mine, studies the electric magnetic interference features and provided the finite element method analysis model of the electric magnetic compatible analysis. A simulation test was conducted with the two - dimensional Ansoft Maxwell. The results showed that the calculation of finite element method could be well to the simulation of two - dimensional Ansoft Maxwell and the finite element method could be effectively to treat the non-linear and transient problems. These results would have the practical significance to estimate and analyze the electromagnetic interference problems of the equipment in the underground coal mine.