A fast hydrogenation control method based on multi-factor objective optimization algorithm

Abstract

The invention relates to a fast hydrogenation control method based on a multi-factor objective optimization algorithm, which belongs to the field of fuel cell vehicles. The method includes: first establishing a lumped parameter thermodynamic hydrogenation model based on a three-stage hydrogen filling system; After the filling is completed, the SOC value of the gas cylinder and the pre-cooling energy consumption are used as the optimization goals, and the pressure switching point of the three-stage filling system and the pre-cooling temperature of the inlet hydrogen are used as the optimization parameters to establish a multi-objective optimization model; finally, the optimization algorithm is used to solve the parameters. As a control parameter for a three-stage filling system. The control parameters solved by the invention can provide theoretical data support for hydrogen refueling, which ensures fast and safe refueling and realizes the goal of refueling with high efficiency and low power consumption.

Description

technical field [0001] The invention belongs to the field of fuel cell vehicles, and relates to a safe and efficient three-stage rapid filling strategy for hydrogen cylinders mounted on fuel cell vehicles. Background technique [0002] As environmental and energy issues become increasingly prominent, it is imminent to find new clean energy sources. Hydrogen energy has the advantages of high efficiency, renewable, and pollution-free, and is considered to be one of the ideal alternative fuels in the future. As the main energy source of the fuel cell system, it has developed rapidly with the development of the fuel cell system and fuel cell vehicles. The storage method of hydrogen on fuel cell vehicles is mainly in the form of high-pressure gas. In order to realize the safe, fast and efficient filling of hydrogen, the rapid filling of high-pressure hydrogen has become a hot topic of research at home and abroad. During the rapid hydrogenation process of the vehicle-mounted hyd...

AI Technical Summary

Problems solved by technology

During the rapid hydrogenation process of the vehicle-mounted hydrogen cylinder, due to the unique negative Joule-Thompson effect of hydrogen and the rapid compression of hydrogen, the internal temperature of the cylinder will rise sharply, causing safety hazards

[0003] The traditional hydrogen filling scheme is single, inefficient and non-selective, without considering the switching point of hydrogen filling in low- and medium-pressure storage hydrogen cylinders, and the refrigeration output is not optimized during the filling process, resulting in low economic efficiency

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