Modeling and control of a SOFC-GT-based autonomous power system

被引：132

作者：

Kandepu, Rambabu ^{[1
]}

Imsland, Lars

Foss, Bjarne A.

Stiller, Christoph

Thorud, Bjorn

Bolland, Olav

机构：

[1] Norwegian Univ Sci & Technol, Dept Engn Cybernet, N-7491 Trondheim, Norway

[2] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, N-7465 Trondheim, Norway

来源：

ENERGY | 2007年 / 32卷 / 04期

关键词：

SOFC; control relevant modeling; hybrid system; control;

D O I：

10.1016/j.energy.2006.07.034

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this article, a dynamic, lumped model of a solid oxide fuel cell (SOFC) is described, as a step towards developing control relevant models for a SOFC combined with a gas turbine (GT) in an autonomous power system. The model is evaluated against a distributed dynamic tubular SOFC model. The simulation results confirm that the simple model is able to capture the important dynamics of the SOFC and hence it is concluded that the simple model can be used for control and operability studies of the hybrid system. Several such lumped models can be aggregated to approximate the distributed nature of important variables of the SOFC. Further, models of all other components of a SOFC-GT-based autonomous power system are developed and a control structure for the total system is developed. The controller provides satisfactory performance for load changes at the cost of efficiency. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：406 / 417

页数：12