基于RT-LAB的空间对接半实物仿真系统

Hardware-in-the-loop Simulation System for Space Docking Based on RT-LAB

针对当前实时仿真平台工具操作不便以及灵活性较差的缺点,介绍RT-LAB仿真平台的特点,分析其应用于大型控制系统中的优势,基于该平台设计空间对接半实物仿真系统并开发相应的仿真软件,将编写的Matlab/Simulink数学模型通过RT-LAB平台加载到目标机上,实现空间交会对接的模拟仿真。仿真结果表明,该系统能够真实模拟空间两飞行器交会对接的过程,验证数学模型的准确性及对接机构产品质量,具有较高的稳定性及可靠性。

Aiming at the shortcomings of existing real-time simulation platforms, such as inconvenient operation and low flexibility, this paper introduces the characteristics of RT-LAB simulation platform and analyzes the advantage of the platform when it is applied in large-scale control systems. It builds a hardware-in-the-loop simulation system for space docking based on RT-LAB and develops corresponding simulation software. Then,it downloads the programmed Matlab/ Simlink mathematics model into target machines through RT-LAB platform and implements the simulation of space rendezvous and docking. Experimental results show that the proposed system can simulate the process of two aircrafts＇ rendezvous and docking in space, verify the accuracy of the mathematics model and the quality of docking mechanism product, which has higher stability and reliability.