Research On Miniaturization And Speeding Up Of Integrated Discharged Device For Electromagnetic Transmitting Pulsed Power Source

One of the main limiting factors of the practical application of electromagnetic transmitting devices is the miniaturization of the device.The pulsed power source is the core component of the electromagnetic transmitting device,which is more urgent for miniaturization.The safety discharged device is an indispensable part of the pulsed power source.The research on its miniaturization will promote the practical application of the electromagnetic launcher and enhance the safety and stability of the pulsed power source device.This paper analyzes the integrated discharged device designed for multi-module has advantages of small size,fast bleed-off speed,modularity,etc.In this paper,10KV,50KJ capacitive pulse power source module application conditions as an example,the integrated discharged device was systematically designed and verified with the design principles of miniaturization and speeding up through theoretical analysis and simulation which provide a design direction of an integrated discharged device for the electromagnetic transmitter pulsed power source,the main research results are as follows:(1)From the energy conversion point of view,taking the device miniaturization as the primary factor,the discharge form of the discharge device through the resistance into the heat energy is determined.The parts of the device were compared to choose the material.Then,based on the maximum number of times the unit can be released,the basic dimensions of the discharged device were analyzed and designed.(2)The process of single-module bleeder is divided into two stages,that is,capacitor discharge and capacitor discharge,and the theoretical analysis of the two stages shows that the heat exchange between the resistor and the heat-conducting oil can be neglected during the discharge process.(3)Two control timings for multi-module discharge process are proposed,which are equal time interval control and maximum temperature control respectively.Under adiabatic conditions and natural convection conditions,the influences of two control sequences on the temperature of each part of the device are analyzed in detail.With the same device size,the highest temperature control sequence is more conducive to the speeding up of discharged device.(4)Under the condition of the highest temperature control,the influence of the convection heat transfer coefficient of the discharged device shell on the temperature of each part of the device is analyzed in detail.Taking the convection heat transfer coefficient 40W/(m2·K)in the A2 region as an example,the auxiliary heat-dissipating device is detailed analyzed and designed.