H2 optimal control solution for a combined energy and attitude control system

This addendum is an extension of a series of research work on the combined energy and attitude control system (CEACS) for small satellites. Previous works appeared in Acta Astronautica showed that the CEACS is able to simultaneously perform the attitude control and energy storage task. This addendum focuses on the CEACS attitude control enhancement by employing the H2 optimal control method. Governing equations describing the CEACS H2 attitude control architecture are established. Numerical treatments are performed in order to validate the attitude control option.

► H2 optimal control is tested on CEACS-Combined Energy and Attitude Control System (novelty).
► Energy storage capability remains optimum as in the previous CEACS works published in Acta Astronautica (no system degradation).
► Achieved better satellite attitude pointing accuracies under H2 control than the previous CEACS works published in Acta Astronautica.
► H2 control attitude accuracies in non-ideal cases also better than the previous CEACS works published in Acta Astronautica.