固体氧化物燃料电池（Solid Oxide Fuel Cell，SOFC）工作温度高，阳极可发生燃料内重整反应，具有较高的燃料灵活性，同时可与燃气轮机(Gas Turbine,GT)构成固体氧化物燃料电池/燃气轮机（SOFC/GT）混合动力系统进一步提高系统效率。SOFC/GT混合动力系统一般分为底层和顶层循环2种，考虑到SOFC/GT示范性工程有限且建造成本高，一般采用数学建模仿真方法开展SOFC/GT研究。与单独SOFC或GT模型不同，常采用热力学建模仿真对SOFC/GT系统性能进行分析优化。介绍了SOFC/GT混合动力系统常用热力学模型，并对目前SOFC/GT混合动力系统常见稳态和动态热力学建模工作展开综述，考虑到现阶段SOFC/GT混合动力系统多采用商业化软件（Aspen Plus、COMSOL、gPROMs等）建模，建模功能有限、不易拓展，后续工作可基于Matlab、Python等软件进行开源代码的编程；现阶段主要围绕系统级集总模型开展分析，无法准确描述燃料电池的局部特性，后续工作可在SOFC/GT建模中引入一维甚至更高维度的SOFC模型进一步提高建模精度。

Anode of solid oxide fuel cell (SOFC) can take internally reforming reaction due to the high operating temperature, which provides high fuel flexibility. The SOFC can also be combined with gas turbine (GT) to form a hybrid power system to further improve performance efficiency. The SOFC/GT hybrid system can be operated with bottom or top cycle. Considering the limited demonstration projects and high construction costs of SOFC/GT, mathematical modeling and simulation methods are generally used to carry out SOFC/GT related research work. Different from separate SOFC or GT models, thermodynamic modeling and simulation studies are often conducted to analyze and optimize the performance of SOFC/GT systems. In this paper, the commonly applied thermodynamic modeling approaches of SOFC/GT hybrid system were first introduced and summarized. Following that, the common steady state and dynamic thermodynamic modeling work for SOFC/GT hybrid systems at present were reviewed. Considering that commercial software (Aspen Plus, COMSOL, gPROMs) is commonly used for modeling SOFC/GT hybrid systems at this stage, and the modeling functions are limited and not easy to expand, open source code programming can be performed based on Matlab, Python and other software. At the same time, the analysis mainly focuses on SOFC/GT lumped models, which cannot accurately describe the local characteristics of fuel cells. One-dimensional or even higher dimensional SOFC models can be introduced into SOFC/GT modeling to further improve modeling accuracy.

0 引言

1 固体氧化物燃料电池及燃气轮机

   1.1 固体氧化物燃料电池简介

   1.2 燃气轮机简介

2 SOFC/GT系统布置方式及控制方程

   2.1 SOFC/GT混合动力系统布置方式

   2.2 SOFC/GT混合动力系统数学模型

3 SOFC/GT系统示范性工程及相关建模仿真

   3.1 SOFC/GT混合动力系统示范性工程

   3.2 SOFC/GT系统相关建模仿真

4 结语与展望