电机与控制应用2024，Vol.51Issue(6)：12-19,8.DOI:10.12177/emca.2024.049
低加速力波动感应线圈型发射器的外电路设计
Design of External Circuit for Induction Coilgun with Low Acceleration Force Fluctuation
摘要
Abstract
Induction coilgun usually generates pulsating electromagnetic force which causes the large acceleration force fluctuation of the armature during the launch process.The excessive peak of acceleration force and the inordinate acceleration force fluctuation may be harmful to the load,especially for those carrying sensitive electronic components,which limits the value of induction coil emitters in practical engineering applications.Addressing the above questions,a new type of driving circuit for multi-capacitance time-sharing triggering is proposed,and the feasibility of the circuit is illustrated by analyzing the influence of the change of capacitance value and armature triggering position on the emission efficiency of the launcher.Three modes of driving circuits are designed for comparison,and the calculation results show that:under the conditions of the same initial energy storage and the approximate muzzle velocity of the armature,compared with other circuit triggering modes,in the time-sharing triggering mode proposed,the peak of electromagnetic acceleration force of the armature is reduced by 2.04 kN,and the acceleration force fluctuation is reduced by 2.36 kN.Therefore,the driving circuit with time-sharing triggering capacitor could effectively reduce the peak acceleration force and acceleration force fluctuation,and provides reference value for the design of the induction coilgun with sensitive loads.关键词
感应线圈型发射器/电磁力/加速力波动/敏感载荷/分时触发系统Key words
induction coilgun/electromagnetic force/acceleration force fluctuation/sensitive load/time-sharing triggering system分类
信息技术与安全科学引用本文复制引用
王浩杰,严仲明,林飞宏,王豫..低加速力波动感应线圈型发射器的外电路设计[J].电机与控制应用,2024,51(6):12-19,8.基金项目
磁浮技术与磁浮列车教育部重点实验室开放课题基金Foundation of Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle,Ministry of Education （）
