Control Strategy for Thermal Management System of Hydrogen Fuel Cell Engine
LI Wenhao1,2 ,FANG Hongzhang1,2 ,DU Changqing1,2 ,LU Chihua1,2
(1.Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory,Foshan 528200,China;2.Wuhan University of Technology,Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan 430070,China)
Abstract：Aiming at the problems of large reactor temperature fluctuation and slow response of thermal management subsystem in the load change process of hydrogen fuel cell engine system, a thermal management control strategy was proposed based on multi-parameter following of reactor power, coolant temperature difference between reactor inlet and outlet and coolant flow. A onedimensional simulation model of thermal management system was established using AMESim simulation software, and the simulation and analysis of different control strategies were conducted under typical operating conditions. The results show that the control strategies of the pump speed following the reactor power and the temperature difference between reactor inlet and outlet and the cooling fan speed following the outlet temperature of reactor and the coolant flow rate can effectively reduce the temperature fluctuation of reactor and improve the response speed of thermal management subsystem, which provides a solution to the control problem of hydrogen fuel cell engine system under variable load conditions.
