相控式消弧线圈在煤炭电网中的应用与仿真

 电容电流补偿一直是煤矿安全的重要问题。本文分析了消弧线圈的发展现状以及相控式消弧线圈的工作原理，指出原有极值法的不足，并结合对称法和相位法检测电网对地电容电流，给出新的数学解释。利用MATLAB建立Z型变压器和相控式消弧线圈的仿真模型，对其基本性能做出分析。研究结果表明，相控式消弧线圈跟踪电容电流精度高，补偿效果好，无需阻尼电阻，在一定条件下具有应用价值。

Simulation and Application of Phase- Controlled Type Arc Suppression Coil to Electric Power Network in Coal Mine

A compensation of the capacitance current is always an important issue of the mine safety.The paper analyzed the development status of the arc suppression coil and the working principle of the phase-controlled type arc suppression coil.The paper pointed out the disadvantages of the previous extremum method and in combination with the symmetric method and the phase method applied to detect the ground capacitance current of the electric power network,a new mathematical explanation was provided.The MATLAB was applied to establish the simulation model of the Z type transformer and the phase controlled type arc suppression coil.And the basic performances were analyzed.The study results showed that the phase controlled arc suppression coil would have a high accuracy to trace the capacitance current and the compensation effect would be good.There would be no damping resistance required and the phase controlled arc suppression coil would have the application value under the certain condition.