Fault Tolerant Sliding Mode Control on Communication Satellite Using Chemical Propulsion

Abstract

This thesis presents the design and implementation of a fault-tolerant sliding mode control (FTSMC) system for communication satellites using chemical propulsion. The research addresses the need for robust and reliable attitude control in geostationary orbit, where communication satellites play a crucial role. A novel FTSMC strategy is proposed, specifically tailored for this application, filling a gap in existing research. The study utilizes a realistic satellite model based on the TUÅN RKSAT 1B parameters, ensuring practical relevance and accurate performance evaluation. The proposed controller is rigorously tested under various scenarios, including normal operation, thruster performance degradation, and total thruster failure. This comprehensive analysis demonstrates the controller's ability to maintain stability and functionality even in the presence of uncertainties and faults. The research contributes to the advancement of satellite control systems by providing a robust and reliable FTSMC strategy for communication satellites with chemical propulsion.