Fuel battery system and control method thereof

A fuel cell system and fuel cell stack technology, applied in the automotive field, can solve the problems of hydrogen waste, low efficiency, large pressure difference between the two gas circuits, etc., so as to reduce costs, improve economy, and reduce the depth of charge and discharge and the number of cycles. Effect

Active Publication Date: 2018-09-14
JILIN UNIV
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AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a fuel cell system and its solution in order to solve the problems of low efficiency of the existing fuel cell system at low power, waste of hydrogen caused by gas path purging, and excessive pressure difference between the two gas circuits that may damage the proton exchange membrane. Control Method

Method used

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  • Fuel battery system and control method thereof
  • Fuel battery system and control method thereof
  • Fuel battery system and control method thereof

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Embodiment Construction

[0029] refer to figure 1 with figure 2 , The present invention provides a fuel cell system, the fuel cell system includes a No. 1 fuel cell stack 8, a No. 2 fuel cell stack 17, a cathode circuit, an anode circuit and a centrifugal pressure equalizer assembly.

[0030] The anode loop includes a hydrogen storage tank 1, a pressure regulating valve 2, a hydrogen circulation pump 3, a hydrogen circulation pump motor 4, a No. 1 solenoid valve 5, a No. 2 solenoid valve 6, a No. 3 solenoid valve 7 and the direct connections with each other pipeline. Described cathode circuit comprises air compressor 13, air compressor motor 14, humidifier 12, back pressure valve 16, expander 15, No. 4 solenoid valve 9, No. 5 solenoid valve 10, No. 6 solenoid valve 11 and its pipelines connected to each other. The centrifugal pressure equalizer assembly includes an ultrasonic liquid level sensor 18, a No. 7 solenoid valve 19, a centrifugal pressure equalizer shell 20, a floating block 21, a hydrog...

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Abstract

The invention discloses a fuel battery system and a control method thereof. By controlling switching on and off of corresponding electromagnetic valves, time-sharing work of a fuel battery pack I anda fuel battery pack II are realized, high-efficiency zones of fuel batteries are enlarged, and the economic performance of a fuel battery vehicle can be remarkably increased; a provided centrifugal voltage balancer is capable of effectively avoiding the problem of waste of hydrogen caused by gas circuit blowing, and the pressure of gas circuits at two sides can be stabilized to a certain degree, so that the service life of the fuel batteries can be prolonged. The control method of the fuel battery system is further put forward according to the fuel battery system. The control method is capableof increasing the economic performance of the fuel battery system as much as possible on the basis that the characteristics of the fuel battery system are fully considered.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a fuel cell system and a control method thereof. Background technique [0002] With the continuous increase of car ownership, cars have brought serious environmental pollution problems while facilitating people's lives. At the same time, because the source of my country's oil mainly depends on imports, with the continuous increase of car ownership, my country's dependence on foreign energy continues to increase, which seriously affects my country's national security. With the rise of fuel cell vehicles in recent years, especially after Toyota launched the Mirai, countries have paid more attention to the research and development of fuel cell vehicles. The core component and technical bottleneck of fuel cell vehicles is still the research and development of fuel cell systems. Some patents on fuel cell systems have been proposed to promote and develop fuel cell systems to a ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04089H01M8/04119B60L11/18
CPCH01M8/04089H01M8/04097H01M8/04179B60L58/30H01M2250/20Y02T90/16Y02T90/40Y02E60/50
Inventor 曾小华纪人桓宋大凤王越王振伟李广含刘持林王恺崔臣孙可华
Owner JILIN UNIV
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