【作者】 孙震东； 汪玉洁； 陈宗海；

【Author】 Sun Zhen-Dong;Wang Yu-Jie;Chen Zong-Hai;Department of automation,University of science and technology of China;

【机构】 中国科学技术大学信息科学技术学院自动化系；

【摘要】 近年来氢能由于其来源广泛、绿色无污染,转化效率高而成为很有潜力的绿色解决方案。燃料电池动力汽车能够充分利用氢能的优势,提高汽车的而续航里程与环境友好程度。而燃料电池的热管理系统决定系统的启动时间与工作效率。在交通领域应用的情况下,实机路况测试带来的成本与安全问题是不容忽视的,因此精确燃料电池动态特性建模与仿真工作是非常必要的。本文对燃料电池发动机热管理系统的关键零部件:电堆、节温器、冷却液管路和水泵等部件建立了机理模型与数据驱动模型,并对其单独进行了模型验证。最后在Matlab/Simulink软件中搭建了系统仿真模型对燃料电池动力系统热行为进行仿真,并与实际测试结果对比,结果表明,电堆出入口温度误差分别为1.65℃与1.10℃,模型可以反映实际系统的温度特性。更多还原

【Abstract】 In recent years, hydrogen energy has become a promising green solution because of its wide source, high conversion efficiency and no pollution. Fuel cell powered vehicles can make full use of the advantages of hydrogen energy to improve the vehicle’s range and environmental friendliness. The fuel cell thermal management system determines the startup time and efficiency of the system. In the case of the application in the field of transportation, the cost and safety problems brought by the real road test can not be ignored, so the accurate modeling and simulation of fuel cell dynamic characteristics is very necessary. In this paper, the mechanism model and data-driven model are established for the key components of fuel cell engine thermal management system, such as reactor, thermostat, coolant pipeline and water pump,and the model verification is carried out separately. Finally, a system simulation model was built in Matlab/Simulink software to simulate the thermal behavior of fuel cell power system, and compared with the actual test results. The results show that the temperature errors of the reactor inlet and outlet are 1.65℃ and 1.10℃ respectively, and the model can reflect the temperature characteristics of the actual system.更多还原