Research on Energy Management for Ship Hybrid Power System Based on Adaptive Equivalent Consumption Minimization Strategy

This paper analyzes a hybrid power system containing fuel cell (FC) and proposes an improved scheme involving the replacement of single energy storage with system. In order to achieve reasonable distribution between cells units stable operation grid, efficient management (EMS) based on equivalent consumption minimization strategy (ECMS) is proposed. To enhance dynamic response capability systems, low-pass filter variable time constant ultracapacitor SOC feedback describes design fuzzy logic controller that adaptively improves control strategy, adjusts factor in real time, optimizes operating points system, efficiency. The simulation model was established using MATLAB/Simulink. proposed adaptive (A-ECMS) simulated compared state-based systems under conditions ship. results show can maintain efficiency above 60% most significantly suppress fluctuation cell’s output power. outperforms logic-based EMS terms stabilizing reducing hydrogen consumption. effectiveness has been verified.