Abstract: Considering the requirement of satellite fast maneuver, we propose a strategy of hybrid configuration about momentum wheel in this paper. To ensure the satellite momentum to be zero under fault reconstruction, a nominalangularmomentum allocation method and the corresponding moment distribution matrix are introduced. By the designed algorithm, the biggest moment of singleaxis is obtained under reconfiguration. Numerical results show that the new algorithm is effective in reducing adverse effects by the saturation of small momentum wheel, and hence enhances the control ability of system.

Key words: hybrid momentum wheel system, fault reconstruction, moment allocation