多极矩电磁推进器级间耦合特性分析  

Analysis of Interstage Coupling Characteristics for Multipole Field Electromagnetic Launcher

作　　者：汪治全 隆小飞 严仲明[1] 王豫[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《微电机》2016年第11期24-27,50,共5页Micromotors

摘　　要：本文从等效电路出发,根据其构型和驱动方式,分析多极矩电磁推进器驱动线圈之间和电枢与线圈间的耦合特性,利用有限元仿真软件进行仿真,并首次搭建了模型进行小电流实验。研究结果表明:其推进过程中,包括级间驱动线圈以及电枢产生的耦合作用,两者都在后级驱动线圈中产生与前级驱动线圈方向相反的电流。电枢耦合主要由自身运动产生。相比级间电流相同的情况,级间电流方向反向时,后级驱动线圈放电电流更大,电枢表面的涡流强度也明显增大,更有利于系统效率的提高。Compared with traditional electromagnetic propulsion configuration, muihpole field electromagnet- ic launcher is a novel propulsion . It has more complicated coupling between the coils and greater effect on system launch. Analysised MFEL drive coils and coupling characteristics between coils which is processed from equivalent circuit with its configuration and drive way, using the finite element simulation software to build models for simulation and constructed muhi-MFEL model for small current experiment for the first time. The results prove that both interstage coil and armature coupling generate the opposite current in the secondary drive coil. Armature coupling is generated mainly by it＇s running. Compared with the same current direction, the larger coil current and eddy current generated by the system when the direction of coil current is opposite.

关 键 词：多极矩 耦合特性 驱动线圈 电枢 

分 类 号：TM303.1[电气工程—电机]