脉冲等离子体推力器-PPT（Pulse Plasma Thruster），是一种电磁加速的电推进装置。是借助电能来产生（加热、游离等）并加速带电粒子流，从而喷出粒子的反方向上获得推力的一种发动机。它的优点适用于各种自旋稳定卫星，也适用于三轴稳定卫星的精确定点和控制。 文章的内容包括以下几个部分：介绍了 PPT 的基本原理与结构。设计了一套电容储能的脉冲电源系统及试验装置，以反馈式直流斩波电路设计脉冲电源，制作实验模型，并进行组装，搭建了一个有效的 PPT 脉冲放电电路。以罗科夫斯基线圈、直流电阻分压器等测量各个充放电回路的电流与电压，对点火电源以及主电容器的充放电特性进行测量采样，得到相应的充放电电流电压特性图。最后，通过对RC电路充电过程与 RLC电路放电过程的理论计算，得出相应的解析解，对脉冲电源充放电过程进行分析计算，并将计算结果与实验结果进行比较，计算结果能够较好的描述实验数据。 研究表明，设计的电容储能的脉冲电源及点火电路能够可靠地完成充电放电的控制，设计的装置能够满足实验需求。 关键词： 脉冲等离子推力器 电源 充放电电路 点火7479
Title The pulse power supply design under conditions of low-voltage DC power supply and Study its discharge characteristics
Abstract
Pulsed Plasma Thruster-PPT (Pulse Plasma Thruster), is a form of
electromagnetic acceleration of electric propulsion devices. Is the use of
electrical energy to produce (heating, free, etc.) and accelerated stream
of charged particles emitted in the opposite direction of the particles on
the thrust of an engine. Its advantages for a variety of spin-stabilized
satellite, also applies to the precision fixed-point and control of
three-axis stabilized satellite.
The content of the article generally includes the following sections:
Introduction to basic principles and structure of the PPT. Design of a
capacitor discharge pulse power systems and test equipment, and feedback
DC chopper circuit design pulse power, the production of experimental
models, and assembly, set up an effective PPT pulse discharge circuit.
Rogowski coil, DC resistor pider to measure the charge and discharge
circuit current and voltage, ignition power and the main capacitor charge
and discharge characteristics of the measurement sample, the charge and
discharge current-voltage characteristics diagram. Finally, the
theoretical calculation of the RC charging process and the RLC discharge
process, obtained the corresponding analytical solution, numerical
simulation, drawing on the pulse power to charge and discharge process, and
compared with experimental results. Derived experimental model of the PPT
is reliable and effective.
Keywords：PPT Power Charge and discharge circuit Ignition
目录
1 绪论. 1
1.1 研究背景及意义 . 1
1.2 国内外研究状况 . 1
1.3 未来发展趋势及前景 . 4
1.4 本文的主要工作 5
2 PPT充放电电源方案的设计 . 6
2.1 电容储能的主充放电电源 . 6
2.2 点火电源 . 7
2.3 初步实验结果及改进措施 . 8
3 PPT的实验测试 12
3.1 实验仪器准备 12
3.2 主电容与点火电容充放电特性的测量 14
3.2.1 主电容充放电 14
3.2.2 点火电容放电 16
4 主电容器连续触发条件下实验测试 17 低压直流供电的脉冲电源设计及放电特性研究:http://www.751com.cn/zidonghua/lunwen_5463.html