Objective To resist the threats of cyber attacks on energy systems during sailing voyages, this paper proposes a distributed resilient energy management strategy for ship-integrated energy systems.

Method First, an energy management model considering both economic and environmental benefits is constructed based on sailing conditions, and a fully distributed energy management method based on alternating direction method of multipliers (ADMM) is designed. Next, considering that the communication topology may be transformed as connected/disconnected states under attacks, theoretical analyses of the performance and convergence of the designed distributed method are given. Additionally, the detection and isolation methods of abnormal nodes are designed to resist non-colluding and colluding attacks on energy participant nodes. Finally, the ship-integrated energy system of a 64-node cruise ship sailing from Singapore to Penang is utilized to verify the effectiveness of the proposed strategy.

Results The simulation results indicate that under the influence of attacks on communication networks and energy equipment nodes, the proposed distributed resilient energy management strategy leads to an incremental cost increase of up to 2.70% for electrical energy and 0.50% for thermal energy.

Conclusion The designed method significantly enhances the reliability of ship-integrated energy systems and the security of sailing voyages.