Meat Grinder放电特性分析

Analysis of discharge characteristics of Meat Grinder

作为电磁轨道炮脉冲功率电源的Meat Grinder电路结构具有储能密度高,体积小等优势。针对Meat Grinder输出性能的影响因素不明确,工程应用困难的问题,对Meat Grinder的基础电路工作原理进行了探究。基于电磁耦合原理,分析了Meat Grinder的放电过程,给出了耦合系数和级数对Meat Grinder电流放大倍数、能量损耗以及能量利用率的影响特性,对比分析了多级Meat Grinder和单级耦合等效电路的输出性能。研究结果表明,耦合系数是影响电路输出性能的最主要因素。此外,单级耦合等效电路能够达到与多级Meat Grinder相同的输出性能,且工程应用更易实现。

As the pulse power source of an electromagnetic railgun,the Meat Grinder has the advantages of high energy storage density and a small size.Aiming to investigate the unclear factors affecting the output performance of the Meat Grinder and promote its engineering application,this paper analyzes the working principle of the basic circuit of the Meat Grinder.Based on the principle of electromagnetic coupling,the discharge process of the Meat Grinder is analyzed in detail,and the effect of coupling coefficient and number of stages on current amplification,energy loss and energy utilization are given,and the output performance between the multi-stage Meat Grinder and single-stage coupling equivalent circuit is compared.The research results show that the coupling coefficient is the most important factor affecting the circuit output performance.Furthermore,the single-stage coupling equivalent circuit shows the same output performance as the multi-stage Meat Grinder,and is easier to be implemented in engineering application.