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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.9 P.1505-1509


Nonlinear modelling of a SOFC stack by improved neural networks identification

Author(s):  WU Xiao-juan, ZHU Xin-jian, CAO Guang-yi, TU Heng-yong

Affiliation(s):  Institute of Fuel Cell, Shanghai Jiao Tong University, Shanghai 200030, China

Corresponding email(s):   xj_wu@sjtu.edu.cn

Key Words:  Solid oxide fuel cells (SOFCs), Radial basis function (RBF), Neural networks, Genetic algorithm (GA)

WU Xiao-juan, ZHU Xin-jian, CAO Guang-yi, TU Heng-yong. Nonlinear modelling of a SOFC stack by improved neural networks identification[J]. Journal of Zhejiang University Science A, 2007, 8(9): 1505-1509.

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T1 - Nonlinear modelling of a SOFC stack by improved neural networks identification
A1 - WU Xiao-juan
A1 - ZHU Xin-jian
A1 - CAO Guang-yi
A1 - TU Heng-yong
J0 - Journal of Zhejiang University Science A
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2007.A1505

The solid oxide fuel cell (SOFC) is a nonlinear system that is hard to model by conventional methods. So far, most existing models are based on conversion laws, which are too complicated to be applied to design a control system. To facilitate a valid control strategy design, this paper tries to avoid the internal complexities and presents a modelling study of SOFC performance by using a radial basis function (RBF) neural network based on a genetic algorithm (GA). During the process of modelling, the GA aims to optimize the parameters of RBF neural networks and the optimum values are regarded as the initial values of the RBF neural network parameters. The validity and accuracy of modelling are tested by simulations, whose results reveal that it is feasible to establish the model of SOFC stack by using RBF neural networks identification based on the GA. Furthermore, it is possible to design an online controller of a SOFC stack based on this GA-RBF neural network identification model.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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