Acquisition method of fuel cell air management system and related control signals

Abstract

The embodiment of the present application discloses a method for obtaining control signals of air flow and pressure of a fuel cell. In this method, the connection mode between the hidden layer and the output layer is full connection, that is, when calculating the output of the output layer When calculating the air flow control parameter, not only the first output parameter obtained based on the air flow input parameter, but also the second output parameter obtained based on the pressure input parameter will be considered. When calculating the pressure control parameter output by the output layer, not only The second output parameter obtained based on the pressure input parameter will be considered, and the first output parameter obtained based on the air flow input parameter will also be considered, so as to fully consider the coupling relationship between the air flow control and the air pressure control, and improve the air flow rate of the fuel cell. Manage the accuracy of air flow control and air pressure control in the system.

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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