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A hydrogen supply system and control method for an air-cooled fuel cell

A fuel cell and supply system technology, which is applied to fuel cells, power system fuel cells, electrical components, etc., can solve problems such as unreasonable exhaust methods, and achieve the effects of simple and efficient implementation, improved work performance, and efficient emissions.

Active Publication Date: 2022-05-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0006] The present invention aims at the problem of unreasonable exhaust methods in the above-mentioned prior art, and proposes a hydrogen supply system and control method for air-cooled fuel cells, which can intelligently and dynamically adjust the exhaust cycle, time, and pressure changes inside the stack

Method used

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  • A hydrogen supply system and control method for an air-cooled fuel cell
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  • A hydrogen supply system and control method for an air-cooled fuel cell

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Embodiment 1

[0037] This embodiment proposes a hydrogen supply system for an air-cooled fuel cell, such as image 3 As shown, it includes a hydrogen storage bottle, a hydrogen pipeline, a mechanical pressure reducing valve, an intake solenoid valve, an exhaust proportional solenoid valve, a fuel cell controller, an intake pressure detection device, an outlet pressure detection device and a voltage saving detection device; The hydrogen storage bottle is connected to the intake end of the air-cooled fuel cell stack through a hydrogen pipeline provided with a mechanical decompression valve, an intake pressure detection device, and an intake solenoid valve in sequence, and the exhaust end of the air-cooled fuel cell stack is passed through the outlet pressure. The detection device and the exhaust proportional solenoid valve are exhausted. The node voltage detection device is arranged on each battery unit in the air-cooled fuel cell stack. The fuel cell controller receives the intake air pressur...

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Abstract

The invention discloses a hydrogen supply system and a control method for an air-cooled fuel cell, belonging to the technical field of new energy power generation. The hydrogen supply system includes a hydrogen storage bottle, a hydrogen pipeline, a mechanical pressure reducing valve, an intake valve, an exhaust proportional solenoid valve, Fuel cell controller, inlet pressure detection device, outlet pressure detection device and energy-saving voltage detection device; the control method is: open the mechanical decompression valve, the intake valve, close the exhaust proportional solenoid valve, and the battery starts to output electric energy. voltage drops to U 1 When, the inlet pressure of controlling the exhaust proportional solenoid valve is P B Or open the exhaust proportional solenoid valve to the opening degree τ 1 , when the average junction voltage returns to U 2 When the control inlet pressure P gradually increases to P A Or control the opening degree τ to gradually decrease to 0, repeat the above process continuously during the battery working process, realize the intelligent discharge of excess hydrogen inside the air-cooled fuel cell stack, and improve the battery working performance and hydrogen utilization rate.

Description

technical field [0001] The invention belongs to the technical field of new energy power generation, and in particular relates to an air-cooled fuel cell hydrogen supply system and a control method. Background technique [0002] Proton exchange membrane fuel cell has the advantages of high energy density, high energy conversion efficiency, and zero pollution. It is an excellent choice for human beings in the face of energy crisis and has broad development prospects. Among them, the air-cooled fuel cell eliminates the equipment for cooling liquid circulation and external humidification, reduces the energy loss of the system on the auxiliary parts (Bop) of the system while reducing the weight of the entire system, and thus has higher energy efficiency, so air-cooled Fuel cells have great advantages in fields such as unmanned aerial vehicles and small and lightweight power systems. [0003] The usage scenarios of air-cooled fuel cells are mostly small power systems. The amount ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04089H01M8/0438H01M8/04537H01M8/04746H01M8/04992
CPCH01M8/04104H01M8/04388H01M8/04402H01M8/04559H01M8/04761H01M8/04753H01M8/04992H01M2250/20Y02E60/50
Inventor 高艳赵英昊汤浩殷聪李凯
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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