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Method for calculating output air flow of air compressor of hydrogen fuel cell automobile

An air compressor and air flow technology, applied in fuel cells, electrical components, circuits, etc., can solve problems such as increased hydrogen consumption, decreased output power of stacks, errors, etc. Effect of reaction rate and output power

Pending Publication Date: 2022-04-15
KUNMING YUNNEI POWER +1
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AI Technical Summary

Problems solved by technology

[0003] Accurate calculation of the actual output air flow of the air compressor is crucial to maintaining the safe and efficient operation of the fuel cell system stack. If there is a deviation in the calculation of the air flow, it will lead to problems such as a decrease in the output power of the stack and an increase in hydrogen consumption.
[0004] For the calculation of the actual output air flow rate of the hydrogen fuel cell vehicle air compressor under steady-state and transient operating conditions, the existing technology often adopts the steady-state operating point bench test, combined with the method of estimation and speculation. This method, in There are large errors in the transient response performance evaluation of air compressors and air flow calculations.

Method used

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  • Method for calculating output air flow of air compressor of hydrogen fuel cell automobile
  • Method for calculating output air flow of air compressor of hydrogen fuel cell automobile
  • Method for calculating output air flow of air compressor of hydrogen fuel cell automobile

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below, so as to facilitate the understanding of the skilled person.

[0043] The method for calculating the output air flow rate of the hydrogen fuel cell vehicle air compressor comprises the following steps:

[0044] S1, collect air compressor operation data, including demand speed, inlet temperature, reference temperature, inlet pressure, outlet pressure, dynamic response time of air compressor;

[0045] Among them, the required speed is obtained from the "Product Performance Curve" provided by the air compressor manufacturer according to the difference in the required intake air volume of the FCU under different working conditions. The reference temperature refers to the corresponding fluid temperature under standard working conditions; the dynamic response time of the air compressor ...

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Abstract

The invention relates to a method for calculating the output air flow of an air compressor of a hydrogen fuel cell automobile, and belongs to the technical field of hydrogen fuel cell automobiles. The method for calculating the output air flow of the air compressor of the hydrogen fuel cell automobile is used for calculating the actual output air flow of an air compressor of a fuel cell system; the method can improve the precision of air flow calculation, improve the efficiency of a fuel cell system, and improve the energy utilization rate.

Description

technical field [0001] The invention belongs to the technical field of hydrogen fuel cell vehicles, and in particular relates to a method for calculating the output air flow rate of an air compressor of a hydrogen fuel cell vehicle. Background technique [0002] The hydrogen fuel cell power system directly converts hydrogen energy into electrical energy through electrochemical reactions. It has the advantages of cleanliness, high efficiency, and a wide range of fuel sources. It is considered to be the ultimate clean energy for the future. [0003] Accurate calculation of the actual output air flow of the air compressor is crucial to maintaining the safe and efficient operation of the fuel cell system stack. Deviations in the calculation of the air flow will lead to problems such as a decrease in the output power of the stack and an increase in hydrogen consumption. [0004] For the calculation of the actual output air flow rate of the hydrogen fuel cell vehicle air compresso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04089H01M8/04082H01M8/0438H01M8/04992F04B51/00
CPCY02E60/50
Inventor 袁征蒋得刚马淮
Owner KUNMING YUNNEI POWER
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