Analysis on conducted coupling of electrical fast transient burst in mines  

作　　者：FENG De-wang LAN Jian-rong 

机构地区：[1]School of Computer&Information Science,Fujian Agriculture and Forestry University,Fuzhou 350002,China [2]School of Mechanical&Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002,China [3]School of Mechanical Electronic&Information Engineering,China University of Mining&Technology(Beijing),Beijing100083,China

出　　处：《Journal of Coal Science & Engineering(China)》2012年第2期207-212,共6页煤炭学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （50674093）; the Project of Fujian Provincial Education Department （JA11098）

摘　　要：Under the inflammable or explosive environment, the direct measurement methods by opening up the explo- sion-proof shell of electrical installations were not adopted. So, it＇s impossible to have a quantitative analysis on the limit of conducted disturbance for electrical fast transient burst （EFT/B） in such dangerous environments. Transient conducted coupling model, which using EFT/B as its excitation source, can be built based on circuit and electromagnetic field theory. Furthermore, numerical analysis was performed. The results indicate that the capacitive coupling voltage is the same polarity as EFT/B, and is the main disturbance form of conducted coupling in mines. The inductive coupling voltage is reversed polarity with the ca- pacitive coupling voltage, and both peaks appear only in the rising time of EFT/B, which increase with the rising of load resistance. Moreover, the cable coupling voltage on the side of disturbance source is higher than the one on the other side in tunnel. To reduce the common resistance can suppress the resistive coupling disturbance.

关 键 词：conducted coupling electrical fast transient burst numerical analysis 

分 类 号：O441.4[理学—电磁学] TM933.4[理学—物理]