Proton exchange membrane fuel cell modeling method

A proton exchange membrane and fuel cell technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of ignoring hydrogen loss, voltage loss, influence of model accuracy, etc., and achieve reasonable model architecture and model simulation. Calculate the exact effect

Active Publication Date: 2019-04-19
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0007] The purpose of the present invention is to provide a proton exchange membrane fuel cell modeling method to solve the problem that the PEMFC calculation model of the prior art ignores the voltage loss caused by hydrogen loss / internal current, which ultimately affects the accuracy of the model

Method used

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  • Proton exchange membrane fuel cell modeling method

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Embodiment Construction

[0038] The technical solution of the present invention is described in detail below through the examples, and the following examples are only exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being interpreted as a limitation to the technical solution of the present invention.

[0039] This application uses the SIMULINK platform of MATLAB software to improve the original technical state model by taking the voltage consumption caused by the internal current as a new module, and establishes an electrochemical simulation model of a proton exchange membrane fuel cell, and compares and verifies it through test data model reliability.

[0040] Such as figure 2 As shown, the application provides a proton exchange membrane fuel cell modeling method, including:

[0041] 1) Activation overvoltage model η act ,

[0042] 2) Ohmic overvoltage model η ohmic ,

[0043] 3) Concentration overvoltage model η con and,

...

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Abstract

The invention relates to a proton exchange membrane fuel cell modeling method. The method comprises the steps of activating an overvoltage model act, an ohmic overvoltage model ohmic, a concentrationovervoltage model con and a voltage drop model Eloss caused by internal current / permeation loss. According to the technical scheme, PEMFC voltage loss caused by hydrogen permeation or internal currentis used as a calculation part of the model; Through the PEMFC modeling method provided by the invention, the PEMFC model architecture is more reasonable to build, more conforms to the working mechanism of the proton exchange membrane fuel cell, and the model simulation calculation is more accurate.

Description

technical field [0001] The invention belongs to the technical field of new energy, refers to the technical field of battery hydrogen fuel cells, and in particular refers to a proton exchange membrane fuel cell modeling method. Background technique [0002] The proton exchange membrane fuel cell (hereinafter referred to as PEMFC) model is established to obtain the relationship between various working characteristics of PEMFC. It plays an important role in the design and development of fuel cells and auxiliary systems. An accurate model can Predict fuel cell performance. [0003] PEMFC generates liquid water by the reaction of fuel (H2) and oxidant (O2), and its corresponding theoretical thermodynamic electromotive force is E Nernst , which is also the theoretical voltage of the fuel cell. In practice, when a current flows through the battery circuit, corresponding physical and chemical reactions will occur inside the battery, causing the voltage drop to be less than the the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367Y02E60/50
Inventor 王家恒韩震蒋大伟王天禹张坤姚成鑫乔曌白建忠
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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