混合式微小卫星编队飞行控制仿真系统设计

提出了一种混合式的微小卫星编队飞行控制仿真系统。该系统由三个节点组成,即两个模拟卫星和一个控制中心,节点之间通过星间网络进行数据交换。模拟卫星由星上计算机和各种星上敏感器和模拟执行器构成。星上计算机接收星上敏感器的物理输出,并经过星地转换模型对传感器数据进行修正。在一定的控制策略下,卫星控制模型进行计算产生控制输出,控制输出在控制界面上进行显示,并同时作用于传感器修正模块,实现系统的闭环控制。控制中心主要提供强大的计算功能,也可以单独构成一颗数字卫星。在这个控制仿真系统中,能够进行多种控制策略的仿真,包括双星主从控制、双星协同控制、三星主从控制、三星协同控制以及单星失效模式等。

Design of Hybrid Small Satellite Formation Flying Control Simulation System

One hybrid small satellite formation flying control simulation system is introduced.The system consists of three nodes,including two simulative satellites and one control center,and the nodes exchange data through inter-satellite network.The simulative satellite is made up of On-Board Computer(OBC)and some real sensors and simulative actuators.OBC gets data from sensors and modifies it with satellite-earth conversion models.With a certain kind of control policy,the control model gives out control outputs after calculation.The outputs can be shown in the control interface,and also modify the satellite-earth conversion model to realize closed-loop control.The control center provides strong ability of calculation,and it also can act as a digital simulative satellite.In this simulation system,many control policies can be tested and simulated,including Master-Slave mode for double satellites,cooperative mode for double satellites,Master-Slave mode for three satellites,cooperative mode for three satellites and single satellite failure mode.