大地對(duì)電磁脈中感應(yīng)的電纜電流影響的數(shù)值計(jì)算
NUMERICAL CALCULATION OF PLANE GROUND INFLUENCE ON INDUCED CURRENT ON CABLE BY EMP
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摘要: 與電子系統(tǒng)相連的電纜被電磁脈沖感應(yīng)形成的脈沖電流,構(gòu)成了對(duì)電子系統(tǒng)的嚴(yán)重威脅。該文用時(shí)域有限差分法計(jì)算了大地電參數(shù)對(duì)感應(yīng)電流的影響。計(jì)算獲得了電纜上皮電流與電纜距地高度的關(guān)系,并與自由空間的結(jié)果進(jìn)行了比較。
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關(guān)鍵詞:
- 時(shí)域有限差分法; 電纜; 感應(yīng)電流; 大地; 電磁脈沖
Abstract: The induced pulse current by EMP on cable that is connected to electric system threatens seriously the system. In this paper, the influence of conductivity and permittivity of plane ground on this current is calculated by FDTD method. The relationship between induced current and cable position above the earth is obtained, and the results are compared with the free-space case. -
M. Tesche, EMC Analysis Methods and Computational Models, New York, Wiley, 1997, 321-365.[2]K.S. Kunz, R. J. Luebbers, The Finite Difference Time Domain Method for Electromagnetic,Boca Raton, CRC Press, 1993, 185-190.[3]R. Holland, Finite-difference analysis of EMP coupling to thin struts and wires, IEEE Trans. on EMC, 1981, 23(2), 88-97.[4]程引會(huì)等,不同電磁脈沖對(duì)細(xì)導(dǎo)線的耦合,強(qiáng)激光與粒子束,2000,12(1),91-94.[5]G. Mur, Absorbing boundary condition for finite-difference approximation of the time-domain electromagnetic field equation, IEEE Trans. on EMC, 1981, 23(4), 1073-1077.[6]王元坤,電波傳播概論,北京,國(guó)防工業(yè)出版社,1984,15. -
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