一种卫星温度自主管理的优化设计

An Optimization Design of Satellite Temperature Autonomous Management

温度自主管理是卫星主动式热控的主要表现形式,温度自主管理系统将接收到的被控设备的温度数据和固化在软件中的温度阈值进行比较后,发出相应的指令控制加热器的通或断,从而确保星上设备或部件的温度始终保持在一个合理的范围内,不会因为温度过高或过低影响卫星的可靠性和安全性,在一些卫星中,部分被控设备的接口发生了变化,传统的自主管理系统在新接口的温度控制上存在一定缺陷,导致地面测试中出现了热控回路报警,采用增加同一加热器回路通断指令的自主重试次数的方法对温度自主管理软件进行了优化,经过实验验证,优化后的温度自主管理系统能够很好地适应新的接口,该系统已经在多个卫星中成功应用,可为后续卫星提供参考。

Temperature autonomous management is the main form of satellite active thermal control.After comparing the received temperature data of control equipment with the temperature threshold solidified in software,a temperature autonomous management system sends corresponding commands to switch on or off the heater.The temperature of equipment or components of satellite is always ensured in a reasonable range,and the reliability and safety of satellite will not be affected because of too high or too low temperature.Due to the interface change of some equipment in some satellites,traditional autonomous management system have some defects in temperature control to new interface,so thermal cycle alarm occurred during ground test.The temperature autonomous management software is optimized by increasing the number of autonomous retries for the on-off command of the same heater circuit.The experimental results show that the optimized temperature autonomous management system can adapt to the new interface well.The optimized system has been applied in many satellites.It can provide a reference for future satellites.