| 闫孝姮,颜志鹏,陈伟华,侯潇涵,赵亮.矿用井下电缆故障感应电场-磁耦合谐振综合检测方法研究[J].电子测量与仪器学报,2025,39(2):147-159 |
| 矿用井下电缆故障感应电场-磁耦合谐振综合检测方法研究 |
| Research on comprehensive detection method of induced electric-magneticcoupling resonance for fault of mining underground cable |
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| DOI： |
| 中文关键词: 矿用电缆 感应电压 磁耦合谐振 井下检测 感应电场 磁耦合谐振 |
| 英文关键词:mining cable induced voltage magnetic coupling resonance underground detection inductive electric field-magnetic coupling resonance |
| 基金项目:辽宁省教育厅科技创新团队项目(LJ222410147025)资助 |
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| Author | Institution |
| Yan Xiaoheng | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China |
| Yan Zhipeng | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China |
| Chen Weihua | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China |
| Hou Xiaohan | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China |
| Zhao Liang | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China |
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| 中文摘要: |
| 高瓦斯矿井下供电电缆发生故障导致采煤机等设备停工，严重影响生产效率和经济效益。当前，地面电缆故障检测常用的高压脉冲闪络法、行波反射测距法等均不适用于井下检测环境，因此提出了一种感应电场 磁耦合谐振式矿用电缆故障井下综合检测新方法。在低频正弦激励源条件下，建立感应电场 磁耦合谐振式电缆故障综合检测方法数学模型，采用多物理场仿真软件COMSOL对电缆开路短路故障情况下的电磁场量求解，得到电场强度、磁场强度的二维分布以及探测线圈感应电压的一维曲线，仿真及实验测定了所使用线圈开路和短路时的感应电压随提离高度的变化曲线。研究结果表明，基于低频感应电场 磁耦合谐振式综合方法进行矿用电缆故障井下检测具有可行性，在幅值1~20 V、频率范围1 kHz~20 MHz的激励下，在同一提离高度下对电缆沿线检测，可以检测长度在激励波长十分之一内电缆的开路和短路故障。为煤矿电缆故障井下检测以及产品研发提供了一种行之有效的方法。 |
| 英文摘要: |
| A power cable failure in a mine with high-concentration gas has caused coal mining machines and other equipment to stop operating, severely affecting production efficiency and economic benefits. Currently, commonly used methods for detecting cable faults on the ground, such as the high-voltage pulse flash over method and the traveling wave reflection method, are not suitable for underground detection environments.Therefore, this paper proposes a comprehensive detection new method for underground mining cable faults based on induction electric field-magnetic coupling resonance. A mathematical model for a comprehensive cable fault detection method based on induction electric field-magnetic coupling resonance under low-frequency sinusoidal excitation conditions is established. Using multiphysics simulation software COMSOL, the electromagnetic field quantities are solved for open-circuit and short-circuit faults in the cable, resulting in the two-dimensional distribution of electric and magnetic field strengths, as well as the one-dimensional curve of the detection coil voltage. Simulation and experiments have determined the variation curves of the induced voltage with the lift-off height when the used coil is in open-circuit and short-circuit conditions. Research results show that the comprehensive method based on low-frequency induced electric field-magnetic coupling resonance is feasible for underground detection of mining cable faults. Under the excitation with an amplitude of 1 ~ 20 V and a frequency range of 1 kHz~20 MHz, by detecting along the cable at the same lift-off height, open-circuit and short-circuit faults of the cable within one-tenth of the excitation wavelength in length can be detected. It provides an effective method for underground detection of coal mine cable faults and product development. |
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