关键词: 燃料电池系统；热管理；AMESim 软件；仿真分析；控制策略

Abstract: In this paper, 120 kW hydrogen fuel cell system is taken as the research object, combined with thermal management requirements, the control strategy is simulated and analyzed. The simulation model of the hydrogen fuel cell thermal management system is built by AMESim software. The heat production of the reactor and the intercooler is taken as the input condition, and the inlet temperature of the reactor and the inlet and outlet temperature difference are taken as the evaluation index. Firstly, the simulation calculation of the rated working conditions is carried out, and it is obtained that under the rated working conditions, the inlet temperature of the reactor is 72.8 ℃, the outlet temperature is 79.1 ℃, and the temperature difference is 6.3 ℃. The water pump and heat sink meet the heat dissipation requirements. Then the full power simulation analysis shows that the water pump, fan and thermostat can well respond to the temperature change, and with the increase of heat generation, the inlet temperature of the reactor can be maintained within 75 ℃, and the temperature difference can be maintained within 8 ℃ , which meets the temperature control requirements of the reactor.

Key words: Fuel cell system; Thermal management; AMESim; Simulation analysis; Control strategy