电快速瞬变脉冲群对矿井大巷电磁辐射环境的影响  

Effect of Electrical Fast Transient Burst upon the Electromagnetic Environment in a Mine Tunnel

作　　者：孙继平[1] 冯德旺[1,2] 郑召文[1] 任锦彪[1] 靳凤荣[3] 

机构地区：[1]中国矿业大学北京煤炭资源与安全开采国家重点实验室,北京100083 [2]福建农林大学计算机与信息学院,福建福州350023 [3]新疆工业高等专科学校计算机系,新疆乌鲁木齐830091

出　　处：《北京理工大学学报》2009年第4期336-338,355,共4页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(50674093);国家科技支撑计划项目(2006BAK03B00);教育部高等学校博士学科点专项科研基金资助课题(200802900008)

摘　　要：研究了煤矿井下电快速瞬变脉冲群对电磁辐射环境的影响,分析了电快速瞬变脉冲群的频谱特性,确定了频谱分析仪的测量频率范围为3 MHz^1 GHz,并对现场测试方法进行了研究.结果表明:电快速瞬变脉冲群对煤矿井下电磁辐射环境的影响较小,矿用本质安全型电子设备对环境的电磁辐射能量较小,矿用隔爆型电气设备防爆外壳对辐射噪声的抑制效果明显.In order to study the radiated noise caused by an electrical fast transient/burst（EFT/B） in a mine, its frequency-spectrum characteristics are analyzed. The measured frequency of spectrum analyzer is in the range of 3 MHz-1GHz, and the method of field test is investigated. The results showed that the effect of EFT/B upon the electromagnetic radiated the environment 4, in mine tunnel remained very limited, and the radiated emission energy of intrinsic-safe electronic equipment also limited. It is shown that the radiated noise can be suppressed by the explosion- proof shell of electrical apparatuses in mine.

关 键 词：电快速瞬变脉冲群 矿井 电磁辐射环境 频谱 

分 类 号：TD65[矿业工程—矿山机电]