A hybrid approach to space power control utilizing expert systems and numerical techniques

Abstract

Large scale space power systems such as NASA's Space Station Freedom pose significant challenges for autonomous control on-orbit. Conventional computer control techniques inherently emphasize highly structured algorithmic control code, which can deal with a predetermined set of specific contingencies. While expert system technology offers greater flexibility for system control, it introduces additional challenges for test and verification. This paper reports on recent work to combine the positive features of both classical and expert system control techniques in a hybrid, multiprocessor approach. Basic theory is presented, along with actual lab results from a prototype environment.

Control Architecture for Fault Diagnosis and Recovery in a Power Management and Distribution System of a Hypersonic Vehicle

“…An expert system has been used to diagnose both distribution and generation faults in a space station power system testbed [6,7]. Representations of components such as intelligent remote bus isolators and remote power controllers are incorporated into the expert system and have been successfully diagnosed.…”