TY  - EJOU
AU  - Zhang, Yi 
AU  - Gao, Diju 
AU  - Wang, Yide 
AU  - Huang, Zhaoxia 

TI  - A Two-Layer Energy Management Strategy for Fuel Cell Ships Considering the Performance Consistency of Fuel Cells
T2  - Energy Engineering

PY  - 2025
VL  - 122
IS  - 9
SN  - 1546-0118

AB  - Hydrogen fuel cell ships are one of the key solutions to achieving zero carbon emissions in shipping. Multi-fuel cell stacks (MFCS) systems are frequently employed to fulfill the power requirements of high-load power equipment on ships. Compared to single-stack system, MFCS may be difficult to apply traditional energy management strategies (EMS) due to their complex structure. In this paper, a two-layer power allocation strategy for MFCS of a hydrogen fuel cell ship is proposed to reduce the complexity of the allocation task by splitting it into each layer of the EMS. The first layer of the EMS is centered on the Nonlinear Model Predictive Control (NMPC). The Northern Goshawk Optimization (NGO) algorithm is used to solve the nonlinear optimization problem in NMPC, and the local fine search is performed using sequential quadratic programming (SQP). Based on the power allocation results of the first layer, the second layer is centered on a fuzzy rule-based adaptive power allocation strategy (AP-Fuzzy). The membership function bounds of the fuzzy controller are related to the aging level of the MFCS. The Particle Swarm Optimization (PSO) algorithm is used to optimize the parameters of the residual membership function to improve the performance of the proposed strategy. The effectiveness of the proposed EMS is verified by comparing it with the traditional EMS. The experimental results show that the EMS proposed in this paper can ensure reasonable hydrogen consumption, slow down the FC aging and equalize its performance, effectively extend the system life, and ensure that the ship has good endurance after completing the mission.
KW  - Energy management strategy; fuel cell; nonlinear model predictive control; fuzzy rule control; performance consistency; hydrogen fuel cell ship

DO  - 10.32604/ee.2025.068656