基于HTEM系统的多激励源脉冲发射电路研究  

Study on Pulse Transmitting Circuit of Multi-excitation Sources Based on HTEM System

作　　者：梁彪 张一鸣[1] 张栋 李根 王旭红[1] LIANG Biao;ZHANG Yiming;ZHANG Dong;LI Gen;WANG Xuhong(Department of Informatics,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学电控学院,北京100124

出　　处：《电气传动》2022年第24期30-34,共5页Electric Drive

基　　金：中国科学院科技先导项目专项(A类)(XDA14020403)。

摘　　要：随着我国对复杂地形条件下地质勘探需求的增加,直升机瞬变电磁系统(HTEM)的发展越来越受到重视。针对直升机瞬变电磁系统发射信号的需求,提出了一种多激励源脉冲电流发射电路,详细分析了该电路的运行原理和电路模态,并给出了详细的电路仿真参数和仿真结果。研制完成一套原理样机,该样机半正弦波峰值发射电流达到800 A,最大发射磁矩≥120万A·m^(2),梯形波最大峰值发射电流达到70 A。提出的多激励源脉冲发射电路能够有效提高直升机瞬变电磁系统对深部资源和浅部资源探测能力,对直升机瞬变电磁发射机的设计具有一定的参考意义。With the increasing demand for geological exploration in complicated terrain in China,the development of helicopter transient electromagnetic system(HTEM)has been paid more and more attention.A pulse current transmitting circuit with multi-excitation sources was proposed to meet the demand of transmitting signals of HTEM system.The operation principle and circuit modes of the circuit were analyzed in detail,and the detailed circuit simulation parameters and simulation results were given.A set of principle prototype was developed,and the peak emission current of the prototype was 800 A,the maximum emission magnetic moment was more than 1.2 million A·m2,and the maximum peak current of the trapezoidal wave was 70 A.The multi-excitation source pulse transmitting circuit proposed can effectively improve the detecting ability of helicopter transient electromagnetic system to deep and shallow resources,which has a certain reference significance for the design of helicopter transient electromagnetic transmitter.

关 键 词：直升机瞬变电磁系统 多激励源脉冲 电路仿真 电力电子 

分 类 号：TM28[一般工业技术—材料科学与工程]