Control strategy of hybrid electric ship based on improved fuzzy logic threshold

Diesel generators and power battery hybrid all electric ship is the research object in this paper. The key components of the hybrid power system models are established and the energy management strategy is studied. The diesel generators power output is chosen as control variables and a logic threshold control strategy is suggested taking the diesel fuel economy and efficiency as the control target. Fuzzy algorithm is used to further improve the logic threshold energy control strategy. The two algorithms are validated by the hybrid ship physical simulation platform. The experimental results show that the improved fuzzy energy control strategy can be adapted to various ship maneuver scenarios and has good fuel economy, compared with the traditional logic threshold energy control strategy.