Improving Immunity of Colliery Mobile Communication and Gas Monitor to Underground Haulage Motors Electromagnetic Interference
Stringing haulage motors were main underground conveyance equipments, but they were the strong electromagnetic interference sources. To resolve the problem of monitor system false alarm and mobile communication interruption, the interference generation mechanism and distribution characteristic were analyzed. The means of conducted interference circuit analysis and stray current quantitative analysis were adopted. The radiated interference of the stringing haulage motor was measured with Protek3201 field-intensity meter at the second mine of Pingdingshan coal Co. Ltd. The conducted interference, stray current and radiated interference were the main factors of gas monitor and mobile communication malfunction. The anti-interference measures were taken, which included the power supply isolation, equipotential earth and shield to radiated interference. Results indicate monitor system false alarm and mobile communication interruption have been eliminated completely. It is concluded that the electromagnetic compatibility of underground gas monitor and mobile communication has been enhanced evidently with these antiinterference measures.
electromagnetic interference gas monitor coal mine mobile communication stringing haulage motor electromagnetic compatibility
Sun Jiping Ma Fengying
State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology(Bei State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology(Bei
国际会议
2007 IEEE International Conference on Automation and Lofistics
山东济南
英文
2007-08-18（万方平台首次上网日期，不代表论文的发表时间）