Model-Based Fault Detection and Reconstruction for Spacecraft Actuator

Abstract

 A fault detection and diagnosis (FDD) system is designed for the Spacecraft Actuator. In the FDD system two network are used. The first RBF network is used to compensate the modeling error. The second RBF network is used for fault reconstruction. A momentum wheel model is verified through simulation. The analysis shows that the scheme can achieve the characteristics of high precision, good time characteristics.