A hydrogen-air coordinated control method for a hydrogen fuel cell

A fuel cell, coordinated control technology, applied in fuel cells, electrical components, circuits, etc., can solve the problems of low power generation efficiency and short continuous power generation time of hydrogen fuel cells, saving energy, improving rapidity, and improving output power efficiency Effect

Active Publication Date: 2022-05-03
佛山仙湖实验室
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Problems solved by technology

However, none of the above patents can ensure that the output current and output voltage of the hydrogen fuel cell are kept in the optimal range and the timely regulation of the hydrogen intake volume and the air intake volume results in low power generation efficiency and long continuous power generation time of the hydrogen fuel cell. short

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  • A hydrogen-air coordinated control method for a hydrogen fuel cell

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited.

[0030] The invention provides a hydrogen-air coordinated control method of a hydrogen fuel cell, which can automatically and quickly adjust the flow and pressure of hydrogen and air, so as to ensure that the output power of the hydrogen fuel cell system is stable and quickly reaches the target power output.

[0031] A hydrogen-air coordinated control method for a hydrogen fuel cell provided by the present invention can be realized by a coordinated control system and a hydrogen fuel cell system 1, and its structure is as follows figure 1 As shown: the coordinated control system includes a first controller 2, a second controller 3, a first pressure regulating valve 4, a second pressure regulating valve 5, a first pressure sensor 6, a second pressure sensor 7, an output power module 9 and Air compressor 12;

[003...

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Abstract

The invention provides a hydrogen-air coordinated control method of a hydrogen fuel cell, the method is realized by a coordinated control system and a hydrogen fuel cell system, the coordinated control system includes an optimization module, and the hydrogen fuel cell system includes a stack and a DC / DC converter The optimization module determines the target power of the hydrogen fuel cell system according to the current operating conditions of the hybrid electric vehicle, obtains the hydrogen given signal and the air given signal according to the target power, and automatically adjusts the hydrogen by using the respective closed-loop feedback control of the hydrogen circuit and the air circuit The pressure and flow of air and air; an optimization strategy is proposed, when the power deviation value is greater than the first deviation threshold, the hydrogen given signal and the air given signal are corrected to realize the coordinated control of hydrogen and oxygen, and ensure that the hydrogen fuel cell proceeds according to the electric stack. Pneumatic power curve operation. It can automatically and quickly adjust the flow and pressure of hydrogen and air to ensure that the output power of the hydrogen fuel cell system is stable and quickly reaches the target power output.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a hydrogen-air coordinated control method of a hydrogen fuel cell. Background technique [0002] With the continuous development of fuel cell technology, fuel cell vehicles have become the main trend of domestic development. A hydrogen fuel cell is a device that generates electrical energy through a chemical reaction with air, and its by-product is only water. Therefore, the stack reaction of a hydrogen fuel cell is a chemical process with characteristics such as huge hysteresis, uncertainty, and nonlinearity. Among them, factors such as temperature and pressure have an important impact on the operation of the stack. Hydrogen fuel cells will consume hydrogen and air during use, and the product of fuel cell power generation will make water. If the fuel cell reactants hydrogen and air cannot be supplied in time, and the temperature and gas pressure inside the hydrog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04089H01M8/04746
CPCH01M8/04746H01M8/04753H01M8/04776H01M8/04104Y02E60/50
Inventor 肖纯陈静田韶鹏王宇宁杨灿秦国峰周胜文程南丁
Owner 佛山仙湖实验室
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