优化复合滤波法在煤矿安全监控系统中的应用  

Application of Optimizing Complex Filter in Coal Mine Safety Monitoring System

作　　者：马凤英[1] 翟波[2] 戴峻 

机构地区：[1]山东英才学院信息工程学院,山东济南250353 [2]北京信息职业技术学院,北京100015 [3]煤科集团沈阳研究院有限公司,辽宁抚顺113122

出　　处：《煤矿安全》2016年第12期100-103,共4页Safety in Coal Mines

基　　金：国家安监总局安全生产重大事故防治关键技术科技资助项目(shandong-0006-2014AQ);济南市高校自主创新资助项目(201401210);山东省住房城乡建设科学技术计划资助项目(2014RK017);山东省安全生产科技发展计划资助项目(201409)

摘　　要：针对矿井安全监控设备屏蔽外壳优化后仍偶有监控系统漏报警和误报警的问题,研究了沿着线路传播的传导干扰分布特性,提出一种矿井监控系统改进的分布式电源供电模式,实现从电源源头的干扰抑制;由于煤矿防爆要求限制了滤波电感和滤波电容的取值,针对井下电磁环境特点提出了优化滤波的方法,整合浪涌干扰抑制方法和电瞬变脉冲群滤波方法,引入铁氧体磁珠优化了复合滤波电路,从而在满足防爆要求的前提下提高了矿井安全监控系统的电磁兼容性,解决了矿井安全监控系统漏报警和误报警的问题。To solve the problem of occasionally false alarm and leakage alarm from monitoring system with the optimized shields,we deeply study distribution characteristics of conducted interference along the line,and propose an improved distributed power supply mode for mine monitoring and control system to achieve interference suppression from the power source. Because the coal mine explosion- proof requirements limit the value of filter inductor and capacitor,according to the characteristics of underground electromagnetic environment,we optimized filtering methods and combined electrical surge interference suppression method and electrical transient bursts filtering method,introduced ferrite beads to optimize the composite filter circuit to meet the explosion- proof requirements under the premise of improving the mine safety monitoring system of electromagnetic compatibility and solve the leakage alarm and false alarm problems of mine safety monitoring system.

关 键 词：煤矿安全监控系统 浪涌 电瞬变脉冲群 复合滤波 抗干扰 

分 类 号：TD679[矿业工程—矿山机电]