Abstract: With the rapid development of hydrogen fuel cell vehicles,the number of hydrogen energy equipment hydrogen refueling station is increasing rapidly.The system optimizes the hydrogenation operation process in liquid hydrogen storage and hydrogenation station.The system coordinates and matches the liquid storage process,pressurization and vaporization process and hydrogenation gas supply process.The system realizes the rapid filling of high-pressure hydrogen gas cylinders and improves the energy utilization efficiency,which is based on distributed control technology in the hydrogen refueling station.The system carried out the research of optimal control algorithm,liquid hydrogen pump pressurization and vaporization verification and hydrogenation gas supply test verification,which has completed many key technical indicators,such as boosting and vaporizing pressure to 45 Mpa,and gas supply flow rate to (0～100)g/s.The system realizes the functions of system automatic control,fault diagnosis alarm and unattended power supply.

Key words: Hydrogen refueling station, Distributed control, Liquid hydrogen pump, Unattended