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Control optimization method and system for prolonging service life of SOFC system

A system life and optimization method technology, applied in the direction of fuel cell control, electrochemical generator, fuel cell, etc., can solve the problems that it is difficult to effectively reduce the system attenuation rate, the health status is difficult to obtain, and the system life is reduced, so as to achieve longevity and high efficiency The effect of control

Active Publication Date: 2021-04-30
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0007] Aiming at the defects and improvement needs of the prior art, the present invention provides a control optimization method and system for improving the service life of the SOFC system. Reduced technical issues

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  • Control optimization method and system for prolonging service life of SOFC system
  • Control optimization method and system for prolonging service life of SOFC system
  • Control optimization method and system for prolonging service life of SOFC system

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Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

[0051] like figure 1 As shown, the present invention provides a control optimization method for improving the service life of the SOFC system, comprising:

[0052] Using the fuzzy neural network, four variables of the solid oxide fuel cell system input and the corresponding system running time in the historical data of the fuel cell system are used as the input for training the fuzzy neural network...

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Abstract

The invention discloses a control optimization method and system for prolonging the service life of an SOFC system, and belongs to the field of fuel cell control. The method comprises the following steps: firstly, training a fuzzy neural network through historical data to obtain a relationship among the system input, time and attenuation voltage, and constructing a data-mechanism combined solid oxide fuel cell system attenuation model in combination with a mechanism model; secondly, obtaining data under a long time scale by utilizing the model, obtaining corresponding attenuation rates of the three key state variables under different target powers and different conditions, and selecting a value range of the corresponding key state variable when the attenuation rate is in an optimal interval to serve as an optimal working interval of the three key state variables; and the key state quantities are effectively controlled, so that the influence on system attenuation can be minimized, and long-life and efficient control is realized.

Description

technical field [0001] The invention belongs to the field of fuel cell control, and more particularly, relates to a control optimization method and system for improving the service life of an SOFC system. Background technique [0002] As a high-efficiency, low-emission energy conversion technology, fuel cells directly convert chemical energy stored in fuels (such as hydrogen and methane) into electrical energy through electrochemical reactions. Among them, the solid oxide fuel cell (SOFC) at medium temperature has the advantages of all-solid structure and good fuel adaptability, and the power generation efficiency can reach more than 60%, and the energy recovery efficiency through CHP (cogeneration) can reach 90%. It is one of the most promising energy conversion technologies today. After decades of development, SOFC technology has gradually matured in terms of materials, stack manufacturing, system integration, etc. Many companies have successfully demonstrated SOFC system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04298H01M8/04313
CPCH01M8/04298H01M8/04305H01M8/04313Y02E60/50
Inventor 蒋建华秦宏川汪浩徐豪成喆李曦邓忠华李箭
Owner HUAZHONG UNIV OF SCI & TECH
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