全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

矿井浪涌脉冲辐射电磁场研究

Keywords: 辐射电磁场,浪涌脉冲,瞬态辐射,矿井

Full-Text   Cite this paper   Add to My Lib

Abstract:

研究煤矿井下浪涌脉冲电流激励下电缆的辐射电磁场,运用推迟矢量位和行波天线理论推导了浪涌脉冲电流激励下电缆的辐射电磁场时域数学模型,给出了辐射场强的解析表达式,并进行了仿真计算.时域结果表明,浪涌脉冲电流在电缆附近会产生很高的瞬态辐射场强,但随着距离电缆的径向距离的增加,辐射场强迅速衰减;辐射场强的大小与浪涌电流峰值成正比;在巷道径向距离内,同一横截面辐射场强与距离成反比;在浪涌电流峰值为1kA时,距离电缆径向距离4m处瞬态辐射电场强度峰值达到15kV/m,磁场强度峰值达到40A/m.因此在不采取屏蔽措施的情况下,瞬态浪涌辐射会对井下巷道内监控及通信系统的正常工作造成影响.

References

[1]  孙继平,郑召文,冯德旺,等.浪涌对矿井水泵房电磁环境的影响[J].煤炭学报,2010,32(2):349-352.Sun Jiping, Zheng Zhaowen, Feng Dewang, et al. Influence of surge on electromagnetic environment in the mine pump house[J]. Journal of China Coal Society, 2010,32(2):349-352. (in Chinese)
[2]  Mikiya Saito, Toshihisa Shimizu, Masanobu Nakamura. A novel motor surge voltage suppression method with surge energy regeneration[C]∥Proceedings of ECCE2009. New Jersey: IEEE Computer Society, 2009:1309-1316.
[3]  莫付江,阮江军,陈允平.浪涌抑制与电磁兼容[J].电网技术,2004,28(5):69-72.Mo Fujiang, Ruan Jiangjun, Chen Yunping. Surge suppression and electromagnetic compatibility[J]. Power System Technology, 2004,28(5):69-72. (in Chinese)
[4]  Melfi M, Sung J, Bell S, et al. Effect of surge voltage risetime on the insulation of low voltage machines fed by PWM converters[C]∥Proceedings of IAS’97. New Jersey: IEEE, 1997:239-246.
[5]  Sen P K, Ault R. Medium voltage motor surge protection[C]∥Proceedings of IEMDC07. New Jersey: Institute of Electrical and Electronics Engineers Computer Society, 2007:836-840.
[6]  Working Group 3-4-17 of the IEEE Surge Protective Devices Committee. Surge protection of high voltage shunt capacitor banks on AC power systems survey results and application considerations[J]. IEEE Transaction on Power Delivery, 1991,6(3):1065-1072.
[7]  Sutherland P E. Surge protection of a large medium voltage motora case study[C]∥Proceedings of Industrial and Commercial Power Systems Technical Conference. New Jersey: IEEE, 1997:36-40.
[8]  Gupta B K, Nan N E, Sharma D K. Protection of motors against high voltage switching surges[J]. IEEE Transaction on Energy Conversion, 1992,7(1):139-147.
[9]  Zhan Jun, Qin Qiling. Analytic solutions of traveling wave antennas excited by nonsinusoidal currents[J]. IEEE Transaction on Electromagnetic Compatibility, 1989,31(3):328-330.
[10]  孙继平,郑召文,冯德旺.矿井浪涌脉冲电磁辐射特性研究[J].煤炭学报,2009,34(5):707-710.Sun Jiping, Zheng Zhaowen, Feng Dewang. Research on electromagnetic field radiated by surge in coal mine[J]. Journal of China Coal Society, 2009,34(5):707-710. (in Chinese)
[11]  国家质量技术监督局.GBT17626-5—2008电磁兼容 试验和测量技术:浪涌(冲击)抗扰度试验[S].北京:中国标准出版社,2008.The State Bureau of Quality and Technical Supervision. GBT17626-5—2008 electromagnetic compatibility testing and measurement techniques: surge immunity test[S]. Beijing: China Standard Press, 2008. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133