电磁发射用脉冲电源的设计.doc

PAGE PAGE II PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I 毕业设计(论文) 设计(论文)题目： 电磁发射用脉冲电源的设计 PAGE 54 PAGE 55 电磁发射用脉冲电源的设计 摘 要 随着电磁发射技术的不断发展，其在国防建设以及国民生产中的应用也越来广泛。高功率脉冲电源作为电磁发射技术的主要组成部分，也越来越受到人们的关注。 为了满足空间电磁发射技术的需要，高精度脉冲电源系统就显得非常重要，而脉冲电源的主电路拓扑结构的设计就成了一个重要的研究问题。本论文主要介绍了电磁发射仿真实验中的脉冲电源系统的主电路的拓扑结构、特性，并运用saber电路仿真软件对主电路进行理论仿真。主要完成的工作有： 1.建立了脉冲电源主电路的数学模型：介绍了毫秒级（精确到百微秒级）脉冲电源系统的组成以及重要元件和相关参数进行介绍，同时分析了各个元件在主电路中所起到的作用，同时指明各元件的选择依据，通过理论上的软件仿真，从而确定了脉冲电源系统中各功率元件的参数。 2.通过在saber电路仿真软件中对脉冲电源的电路拓扑结构的仿真，获得电路中不同线路电流、电压随着时间的变化曲线，从而确定它们在短时间内（毫秒或者微秒级）的变化效果，并对此进行分析，通过调节，最终获得最佳的脉冲电源主电路拓扑结构以符合电磁发射对脉冲电源的要求。 关键词：电磁发射、脉冲电源、拓扑结构、仿真 With the design of pulse power electromagnetic launch ABSTRACT With the continuous development of electromagnetic launch technology, its application in national defense construction and national production are more widely. High power pulse power as the main part of the electromagnetic launch technology, is becoming more and more get the attention of people. In order to meet the needs of space electromagnetic launch technology, high precision pulse power system is very important, and the design of the main circuit topology of pulse power supply is an important research question. This paper mainly introduced the electromagnetic emission experiments of pulse power system of main circuit topology structure, properties, and using saber circuit simulation software simulation was carried out on the main circuit theory. The main works are as follows: 1. Established the mathematical model of pulse power main circuit: Introduces the composition of millisecond pulse power supply system and introduces the important components and related parameters, and analyzes the various elements play a role in the main circuit, at the same time, indicate the components selection basis,through the theory of software simulation, which determine the pulse power supply power components of the system parameters. 2. Through the saber in the circuit simulation software simulation of pulse