Fuel cell hydrogen supply control method, computer equipment and storage medium

A technology of fuel cells and control methods, applied in the directions of fuel cells, electrical components, circuits, etc.

Active Publication Date: 2019-05-31
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, in view of the need to reasonably control the hydrogen injection device to minimize the fluctuation amplitude of the pressure di

Method used

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  • Fuel cell hydrogen supply control method, computer equipment and storage medium
  • Fuel cell hydrogen supply control method, computer equipment and storage medium
  • Fuel cell hydrogen supply control method, computer equipment and storage medium

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Embodiment Construction

[0024] This application provides a fuel cell hydrogen supply control method 10, which can be applied to figure 1 The fuel cell hydrogen supply system 20 is shown. See figure 1 , the fuel cell hydrogen supply system 20 includes a gas storage bottle 201 , a solenoid valve 202 , a hydrogen injection device 204 , a circulation pump 205 , and an exhaust valve 203 . The stack anode is 211. The stack anode 211 includes a stack anode side inlet 2111 and a stack anode side outlet 2112 . The gas cylinder 201 communicates with the hydrogen injection device 204 through the solenoid valve 202 and the hydrogen pipeline 220 . The circulation pump 205 communicates with the anode side inlet 2111 and the anode side outlet 2112 respectively, and is used for circulating hydrogen gas between the anode side inlet 2111 and the anode side outlet 2112 . The exhaust valve 203 communicates with the anode side outlet 2112 of the fuel cell stack 210 .

[0025] The gas storage bottle 201 is used to st...

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Abstract

The invention relates to a fuel cell hydrogen supply control method, computer equipment and a storage medium. The first feedforward duty ratio uinject,pump_c for compensating influence of a circulating pump on the pressure, the second feedforward duty ratio uinject,current_c for compensating influence of electrochemical reaction of an electric pile on the pressure, the third feedforward duty ratiouinject,purge_c for compensating influence of an exhaust gas emission valve on the pressure, and the feedback duty ration Deltauinject are calculated, and then summed to obtain a target duty ration uinject of a hydrogen spraying device, and further, the starting time length of the hydrogen spraying device is controlled. Thus, the pressure in the anode side follows the pressure in the cathode sidebasically, the pressure difference between the anode and cathode sides is minimized, the fluctuation amplitude of pressure difference between the two sides of a proton exchange membrane is reduced, the proton exchange membrane is protected against damage, and is more endurable, and an electric pile anode-side water management control method can be cooperated to realize coordinated control of a hydrogen injection system, the circulating pump and the tail gas emission valve, and further the electric pile anode side works in proper water content and pressure state.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell hydrogen supply control method, computer equipment and storage media. Background technique [0002] Proton exchange membrane hydrogen fuel cell is an energy conversion device that directly converts chemical energy into electrical energy by means of electrochemical reaction. Its clean and efficient energy conversion characteristics make it gradually applied in the field of transportation. [0003] Improving the power density is an important technical idea to reduce the cost of the fuel cell system, and the key technical solution to increase the power density of the fuel cell system is to increase the pressure of the reaction gas inside the stack. Inside the fuel cell stack, due to the principle structure of the proton exchange membrane fuel cell, increasing the pressure of the reaction gas inside the stack means that the system faces greater durability risks. This durability...

Claims

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Application Information

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IPC IPC(8): H01M8/04089H01M8/0432H01M8/0438H01M8/04992
CPCY02E60/50
Inventor 李建秋郭迪徐梁飞方川欧阳明高
Owner TSINGHUA UNIV
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