Abstract:Aiming at tethered satellite control systems, the research on reconfigurability evaluation indicators of tethered satellite control systems was carried out. Firstly, a tethered satellite control system composed of three sub satellites was established; Then, a reconfigurability evaluation is conducted for the model, and a reconfigurability evaluation index is given. This index not only describes the system's reconfiguration ability, but also strengthens the role of reconfigurability evaluation in guiding the reconfiguration strategy, reflecting the dependency of reconfiguration design on the reconfigurability evaluation method. Finally, through the numerical examples, the reconfigurability index of the tethered satellite is analyzed, and the system after the failure is redesigned to keep it stable.