Abstract

Currently the most common solutions of satellite attitude control simulation systems is to establish the model of sensors, actuators and the dynamics model of satellite under normal operation. With the gradual development on areas of spacecraft based on fault detection and diagnosis(FDD) and fault-tolerant control systems(FTCS), it is necessary to design a real-time satellite attitude control simulation systems which can be used in the research on the method of reconfigurable attitude control. In this paper we focus on the need for simulation and testing of reconfigurable satellite attitude control systems based on VxWorks operating system. Not only the models of sensors, actuators on satellite under fault conditions are built on the basis of traditional satellite simulations, but also the module of FDD considers the trouble of the uncertainty of parameter estimation. In addition, a human-computer interactive interface is designed to observe the dynamic parameters during the reconstruction process of the reconfiguration. Finally we verify the effectiveness of the real-time simulation system for satellite reconfigurable control study by experiment.

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