Abstract: Hydrogen fuel cells have emerged as an important development direction for future marine power sources. With rapidly increasing complexity in ship power systems, traditional document-centric systems engineering methods fail to meet the research and development demands for rapid iterative of hybrid power systems. To address this, a design and verification method is proposed for the hybrid power system of hydrogen-fueled ships based on Model-Based Systems Engineering (MBSE) method. Firstly, the SysML language is employed to perform the hierarchical decomposition modeling at the overall, system and subsystem levels according to the requirement definition, functional analysis and logical design based on the overall engineering requirements. The functional logic rationality of the model is then verified through the integrated simulation verification of the model. Finally, a Simulink simulation model is built to simulate and calculate the performance parameters of the hybrid power system of the hydrogen-fueled ship. The feasibility of the design and verification process and the effectiveness for the design iteration of complex systems are validated on the hybrid power system of a hydrogen-fueled ship. It can provide a reference for the application of MBSE method in other ships.

Key words: model-based systems engineering(MBSE), hydrogen-fueled ship, logical verification, system simulation

摘要： 氢燃料电池已成为未来船用新型动力源的重要发展方向。然而,随着船舶动力系统复杂度快速攀升,传统以文档为核心的系统工程方法已难以满足混动系统快速迭代的研制需求。该文提出了基于模型系统工程（model-based systems engineering,MBSE）方法的氢燃料船混动系统设计验证方法：首先,基于SysML语言从船舶工程总体需求出发,按需求定义、功能分析、逻辑设计对系统的总体任务层、系统层和子系统层逐层分解建模;其次,通过对模型的集成仿真,验证其功能逻辑合理性;最后,搭建Simulink性能仿真模型,对氢燃料船混动系统的性能参数进行仿真计算。该文以氢燃料船混动系统为例,验证了设计验证流程的可行性,以及对于复杂系统设计迭代的有效性,为船舶领域MBSE方法应用提供参考。

关键词: 基于模型系统工程, 氢燃料船, 逻辑验证, 系统仿真