基于杂散电感的瞬变电磁发射电流关断特性研究
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摘要
在浅层探测瞬变电磁系统中,发射系统电路的杂散参数是导致发射电流关断早期振荡的关键因素。为解决发射关断早期振荡问题,提出了一种基于杂散电感模型的新型浅层瞬变电磁发射机电路设计方法,重点研究了其杂散电感模型的建模方法,并通过电路分析和MATLAB仿真分析了发射电流关断瞬态特性和电流关断早期振荡的产生机理。通过发射系统电路仿真和实验实测结果对比与分析表明,杂散电感模型理论分析与实验结果一致,可以准确模拟出实际发射电路关断早期振荡。研究工作对浅层瞬变电磁探测系统电路的优化设计,反演解释以及工程应用具有重要意义。
In the shallow detection transient electromagnetic system, the spurious parameters of the transmitter circuit are the key factors that cause the oscillation in the early stage of the emission current turn-off. A novel shallow transient electromagnetic transmitter circuit design method based on stray inductance model is proposed to solve the oscillation in the early stage of the emission current turn-off. The modeling method of the stray inductance model is mainly studied, and the principle of the transmit current turn-off transient characteristics and the oscillation in the early stage of the emission current turn-off are analysised by circuit analysis and MATLAB simulation. The comparison and analysis of transmitting system circuit simulation and experimental measurement results prove that this stray inductance model is consistent with the experimental results, and can accurately simulate the actual oscillation in the early stage of the emission current turn-off. This stray inductance model is of great significance for the optimal design, inversion and engineering application of shallow transient electromagnetic detection system circuits.
In the shallow detection transient electromagnetic system, the spurious parameters of the transmitter circuit are the key factors that cause the oscillation in the early stage of the emission current turn-off. A novel shallow transient electromagnetic transmitter circuit design method based on stray inductance model is proposed to solve the oscillation in the early stage of the emission current turn-off. The modeling method of the stray inductance model is mainly studied, and the principle of the transmit current turn-off transient characteristics and the oscillation in the early stage of the emission current turn-off are analysised by circuit analysis and MATLAB simulation. The comparison and analysis of transmitting system circuit simulation and experimental measurement results prove that this stray inductance model is consistent with the experimental results, and can accurately simulate the actual oscillation in the early stage of the emission current turn-off. This stray inductance model is of great significance for the optimal design, inversion and engineering application of shallow transient electromagnetic detection system circuits.
引文
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[24] CALLEGARO A D,GUO J,EULL M,et al.Bus bar design for high-power inverters[J].IEEE Transactions on Power Electronics,2018,33(3):2354-2367.
[2] 赖崇杰.大功率双极性陡脉冲电流源的研究[D].重庆:重庆大学,2013.
[3] 付志红.电磁探测特种电源技术的研究[D].重庆:重庆大学,2007.
[4] 赵海涛,刘丽华,吴凯,等.恒压钳位高速关断瞬变电磁发射系统[J].仪器仪表学报,2013,34(4):803-808.
[5] 郑应阁.关于瞬变电磁法应用分析[J].城市建设理论研究(电子版),2014(28):3761-3762.
[6] 詹艳,赵国泽,梁竞阁,等.PROTEM-37瞬变电磁测深系统及应用实例[J].地震地质,2001,23(2):264-270.
[7] 李水平,张同中,景金明.TerraTEM瞬变电磁系统在隐伏铁矿体上的勘察应用[J].物探与化探,2009,33(4):424-426.
[8] 王忠,黄跃等,林君,等.高速、大动态范围瞬变电磁接收机的研制[J].仪器仪表学报,2006,27(4):416-419.
[9] 赵争鸣,袁立强,鲁挺.电力电子系统电磁瞬态过程[M].北京:清华大学出版社,2017.
[10] ASCH T,FRIEDEL M.ALLTEM UXO discrmination results from the aberdeen proving ground using a hybrid generalized neural analysis and standard dipole inversion and classification scheme[C].24rd EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems.Environment and Engineering Geophysical Society,2011:391-391.
[11] MARTIN F.Effects of stray inductance on switching transients of an IGBT propulsion inverter and resulting gate control strategies [C].Proceedings of IEEE AFRICON 1996,1996.
[12] 邓夷,赵争鸣,袁立强,等.适用于复杂电路分析的IGBT模型[J].中国电机工程学报,2010,30(9):1-7.
[13] ANDO M,WADA K.A normalization procedure of DC-side stray inductance for high-speed switching circuit [J].2016 IEEE Applied Power Electronics Conference and Exposition (APEC),2016:2986-2991.
[14] 刘丽华,吴凯,耿智,等.有源恒压钳位瞬变电磁发射机技术[J].地球物理学进展,2016,31(1):449-454.
[15] CHRISTIANSEN A V,AUKEN E,ANDREA V.Quantification of modeling errors in airborne TEM caused by inaccurate system description[J].Geophysics,2011,76(1):43-52.
[16] 赵海涛.地面瞬变电磁探测技术[D].北京:中国科学院电子学研究所,2014:63-97.
[17] 于生宝,王忠,嵇艳鞠,等.瞬变电磁法浅层探测技术[J].电波科学学报,2006,21(2):284-287.
[18] BRIEST N,GARBE H,SCHAARSCHMIDT M.Measuring the transfer function of a TEM waveguide[C].International Symposium on Electromagnetic Compatibility-Emc Europe,2017:1-6.
[19] GONTARD L C,MOLDOVAN G,CARMONA-GALáN R,et al.Detecting single-electron events in TEM using low-cost electronics and a silicon strip sensor[J].Microscopy,2014,63(2):119-130.
[20] HAIN S,BAKRAN M M,JAEGER C,et al.The effect of different stray inductances on the performance of various types of IGBTs-Is less always better?[C].European Conference on Power Electronics and Applications,2015:1-9.
[21] JIANG Y,YUAN L Q,ZHAO Z M,et al.An experimental method for extracting stray inductance of bus bars without high bandwidth current measurement[C].IEEE Energy Conversion Congress and Exposition (ECCE),2017.
[22] 张岩,李者,李仲强,等.典型电感电路的等效电感值计算方法[J].煤矿安全,2012,43(5):65-66,69.
[23] 余柏南.交流净化电源中等效电感的分析[J].电力电子技术,2000,34(3):32-33.
[24] CALLEGARO A D,GUO J,EULL M,et al.Bus bar design for high-power inverters[J].IEEE Transactions on Power Electronics,2018,33(3):2354-2367.