运载火箭控制系统电磁继电器消反峰电路分析与MULTISIM仿真  

Analysis and MULTISIM Simulation of Electromagnetic Relay Anti-PIV Circuit in Launch Vehicle Control System

作　　者：余力凡[1] 马红梅[2] 

机构地区：[1]北京航天自动控制研究所,北京100854 [2]航天恒星科技有限公司,北京100086

出　　处：《计算机测量与控制》2017年第11期55-57,182,共4页Computer Measurement &Control

摘　　要：运载火箭控制系统中大量使用了电磁继电器,继电器线圈断电时会产生反峰电压,形成很强的电磁干扰;这种干扰一方面很容易击穿驱动继电器工作的晶体管,造成系统功能的损坏,另一方面可能影响运载火箭精密仪器的正常工作;为了消除这种反峰电压,控制系统中经常采用两种消反峰电路;对两种电磁继电器消反峰电路设计进行了理论分析与计算,比较了"二极管+电阻"电路与"电阻+二极管+稳压二极管"电路的消反峰效果,并使用MULTISIM进行了仿真,发现"电阻+二极管+稳压二极管"电路消反峰效果更好,对于要求快速泄放反峰电流的电路应采用"电阻+二极管+稳压二极管"的消反峰电路。A large number of electromagnetic relays are used in Launch vehicle control system. When the relay coil power off it will gen- erate a peak inverse voltage, forming a strong electromagnetic interference. On the one hand this kind of interference easy to breakdown the transistor , resulting in damage to the system function, on the other hand may affect the normal operation of the precision instruments. In or- der to eliminate this peak inverse voltage, two kinds of Anti--PIV （Peak Inverse Voltage） circuits are often used in the control system. The design and calculation of the Anti--PIV circuit of the two kinds of electromagnetic relays are compared and calculated. The ＂diode＋ resist- ance＂ circuit is compared with the ＂resistor＋ diode＋zener diode＂ circuit of the Anti--PIV effect, and the use of MULTISIM simulation, found that ＂resistance＋diode＋Zener diode＂ circuit is better. For the rapid release of Peak Inverse Voltage the ＂Resistance ＋diode＋Zener diode＂ Anti--PIV circuit should be chosen.

关 键 词：运载火箭 电磁继电器 反峰电压 MULTISIM 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]