Solid oxide fuel cell hybrid system: Control strategy for stand-alone configurations

2011 ◽  
Vol 196 (5) ◽  
pp. 2682-2690 ◽  
Author(s):  
Mario L. Ferrari
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Hybrid System ◽  
Control Strategy ◽  
Cell Hybrid ◽  
Solid Oxide ◽  
System Control ◽  
Oxide Fuel ◽  
Fuel Cell Hybrid

The Control Strategy for a Solid Oxide Fuel Cell Hybrid System

2009 ◽  
Author(s):  
Jarosław Milewski ◽  
Andrzej Miller ◽  
Antoni Dmowski ◽  
Piotr Biczel
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Hybrid System ◽  
Control Strategy ◽  
Cell Hybrid ◽  
Solid Oxide ◽  
Maximum Efficiency ◽  
Oxide Fuel ◽  
Independent Parameters ◽  
Fuel Cell Hybrid

Based on mathematical modelling and numerical simulations, the control strategy for a Solid Oxide Fuel Cell Hybrid System (SOFC-HS) is presented. Adequate maps of performances with three independent parameters are shown. These independent parameters are as follows: stack current, fuel mass flow and turbine-compressor shaft speed. To control external load, those parameters should be appropriately chosen. The control system is purposed to meet many constraints: e.g. stack temperature, steam-to-carbon ratio, compressor surge limitation etc. The aim is to achieve maximum efficiency of power generated within those constraints. Governing equations of SOFC-HS modelling are given. An adequate simulator for the SOFC module was produced and described. Based on this simulator, the control strategy was obtained. The performance of this SOFC-HS is shown in various working environments.

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