Design of System-Level Self-health Energy Management of Manned Spacecraft

Given the long service life and high reliability requirements of manned spacecraft, the effectiveness of fault diagnosis and self-health management directly influences the autonomy of spacecraft during on-orbit operations. Using energy health monitoring as a representative case, two modes of system-level self-health energy management are proposed. The design of these modes is detailed with respect to activation timing, health assessment methodologies, and autonomous fault-handling strategies. Within these designs, fault detection and diagnosis are performed to deliver timely fault information to astronauts and ground engineers. For faults posing a threat to astronaut safety or leading to system failure, autonomous recovery mechanisms are incorporated to restore functionality and transition the spacecraft into a safety mode. The results provide technical support for enhancing fault diagnosis and self-health management in future spacecraft.