空间科学试验温度控制系统的设计与实现  

Design and Implementation of a Temperature-Control System for Space Science Experiment

作　　者：李楠[1] 林宝军[2] 苏建[2] 

机构地区：[1]中国科学院空间中心 [2]中国科学院光电研究院,北京100080

出　　处：《计算机仿真》2007年第4期43-45,220,共4页Computer Simulation

摘　　要：从某种意义上讲,润湿性、表面张力等物理参数是影响空间材料制备能否成功的关键问题之一。针对空间应用的特点介绍了某卫星搭载金属熔化试验温度控制系统的设计与实现。在该系统设计过程中,研究了地面环境和空间环境对控制系统的不同影响,并以此为指导设计了控制系统的硬件和软件。该系统为单输入单输出闭环反馈控制系统,采用位置式离散PID控制算法及PWM加热方法,使金属样品的温度符合给定要求。该控制系统已在某型号卫星搭载任务中成功完成科学试验工作,试验结果对相关领域的研究具有重要意义。同时该控制系统在实际航天任务中得到验证,其设计思路正确、合理,控制算法简单、有效。其设计和实现方法也可应用于其它类似星上系统的研制工作。In a sense, wettability, surface tensity and other physical parameters are some of the key factors for the material manufacture in outer space. The design and implementation of a temperature - control system for a piggyback metal - melt experiment on satellite is introduced here. During the design of the system, different effects of both the ground environment and outer space environment on the system are analyzed for designing the hardware and software. The system is a single - input and single - output control system with feedback. PID algorithm in position and digital form and PWM heating method are used to control the temperature according to the requirement. The system completes the experiment successfully during the flight mission of the satellite. And the result of the experiment is significant for the research in relevant fields. Meanwhile, the system is examined in the real flight mission. The design is correct and appropriate. The control algorithm is simple and efficient. The methods used in the design and implementation of the system can be applied to the development of other similar systems on satellite.

关 键 词：温度控制系统 脉宽调制方法 比例-积分-微分控制算法 

分 类 号：V447[航空宇航科学与技术—飞行器设计]