燃料电池-锂电池混合动力船舶的动力源是由燃料电池作为主电源，锂电池为辅助电源。对混合动力系统采用能量管理策略(EMS)进行研究，分配每个电源的输出功率。为了提高氢燃料经济性和系统寿命，提出一种基于功率解耦的外部能效最大化策略进行建模仿真分析，并与双闭环PI控制策略和外部能效最大化策略(EEMS)进行对比，以验证其有效性。结果表明，本文提出的策略能够满足船舶典型工况下的功率需求，并有效降低氢燃料消耗，提高锂电池的利用率，从而利用混合动力系统的特点提高了氢燃料经济性，也使整个系统能够总体高效运行。
The fuel cell-lithium battery hybrid power ship uses fuel cells as the main power source and lithium batteries as the auxiliary power source. For hybrid power systems, energy management strategies (EMS) need to be used for research to allocate the output power of each power source. In order to improve hydrogen fuel economy and system life, an external energy efficiency maximization strategy based on power decoupling is proposed. Modeling simulation analysis, and compared with the dual closed-loop PI control strategy and the external energy efficiency maximization strategy (EEMS) to verify its effectiveness. The results show that the proposed strategy can meet the power requirements of ships under typical working conditions, effectively reduce hydrogen fuel consumption, and increase the utilization rate of lithium batteries, thereby using the characteristics of hybrid power systems to improve hydrogen fuel economy and make the entire system able to run efficiently overall.
2023,45(7): 106-110 收稿日期：2021-12-13
DOI：10.3404/j.issn.1672-7649.2023.07.021
分类号：U665.13
基金项目：上海市科学技术委员会（201010502000）；上海市科技计划项目（20040501200）
作者简介：陈旭冉(1998-),男,硕士研究生,研究方向为船舶储能系统
