Purpose – An architecture is proposed based on the torque mode operation for the combined energy and attitude control system (CEACS). The CEACS energy storage and attitude control performances are demonstrated.Design/methodology/approach – All the relevant system equations are established. The torque mode‐based architecture is designed. The architecture is evaluated through numerical treatments.Findings – The proposed CEACS architecture can simultaneously manage the energy storage and attitude control tasks.Research limitations/implications – This research work is exclusively for small satellites in the LEO missions. However, the proposed CEACS architecture is applicable for other missions.Practical implications – The torque mode operation will allow an ironless motor/generator design for CEACS.Originality/value – The results demonstrate the CEACS operation in the torque mode.
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