Fuel cell air management system and related control signal acquisition method thereof

Abstract

The embodiment of the invention discloses a control signal acquisition method for air flow and pressure intensity of a fuel cell. According to the method, a hidden layer and an output layer are fullyconnected; when the air flow control parameters output by the output layer are calculated, the first output parameter obtained based on the air flow input parameter is considered, and a second outputparameter obtained based on the pressure input parameter is also considered; when the pressure intensity control parameters output by the output layer are calculated, the second output parameter obtained based on the pressure intensity input parameter is considered, and in addition, the first output parameter obtained based on the air flow input parameter is also considered; the coupling relationship between air flow control and air pressure control is fully considered; and the precision of air flow control and air pressure control in a fuel cell air management system is improved.

Description

technical field [0001] The present application relates to the technical field of air management, and in particular to a fuel cell air management system and a method for acquiring control signals of air flow and pressure thereof. Background technique [0002] With the emergence of global warming, fuel cell technology is regarded as a promising energy technology due to its high efficiency and low pollution. Among them, the proton exchange membrane fuel cell has the characteristics of low operating temperature, high power density, fast response, good stability, and no harmful products during the chemical reaction process, making it an ideal vehicle energy device. [0003] The fuel cell air management system provides the required pressure and air flow for the on-board fuel cell system, and its power exceeds 15% of the power generation of the on-board fuel cell system. It is an important subsystem of the proton exchange membrane fuel cell system. [0004] At present, fuel cell a...

AI Technical Summary

Problems solved by technology

However, the modeling of high-speed air compressors is complex and there is a strong coupling relationship between flow control and pressure control, which increases the difficulty of control and reduces the response speed and control accuracy of the vehicle-mounted fuel cell air management system.

Especially in vehicle-mounted applications, frequent changes in fuel cell power require high response speed and control accuracy for the pressure and flow of the fuel cell air management system to avoid catalyst degradation caused by excess oxygen or oxygen starvation, which affects the life of the fuel cell

However, there is a strong coupling relationship between air compressor flow control and pressure control, which seriously affects the dynamic response capability and control accuracy of the fuel cell air management system.

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