Sensitivity analysis of the fuel economy strategy based on load-following control of the fuel cell hybrid power system

2019 ◽  
Vol 199 ◽  
pp. 111946 ◽  
Author(s):  
Nicu Bizon
Keyword(s):  
Sensitivity Analysis ◽  
Fuel Cell ◽  
Power System ◽  
Fuel Economy ◽  
Cell Hybrid ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Load Following ◽  
Fuel Cell Hybrid

scholarly journals Better Fuel Economy by Optimizing Airflow of the Fuel Cell Hybrid Power Systems Using Fuel Flow-Based Load-Following Control

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2792 ◽  
Author(s):  
Nicu Bizon ◽  
Alin Gheorghita Mazare ◽  
Laurentiu Mihai Ionescu ◽  
Phatiphat Thounthong ◽  
Erol Kurt ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Fuel Cell ◽  
Fuel Economy ◽  
Cell Hybrid ◽  
Proton Exchange ◽  
Hybrid Power ◽  
Load Following ◽  
Best Value ◽  
Optimization Function ◽  
Fuel Cell Hybrid

In this paper, the results of the sensitivity analysis applied to a fuel cell hybrid power system using a fuel economy strategy is analyzed in order to select the best values of the parameters involved in fuel consumption optimization. The fuel economy strategy uses the fuel and air flow rates to efficiently operate the proton-exchange membrane (PEM) fuel cell (FC) system based on the load-following control and the global extremum seeking (GES) algorithm. The load-following control will ensure the charge-sustained mode for the batteries’ stack, improving its lifetime. The optimization function’s optimum, which is defined to improve the fuel economy, will be tracked in real-time by two GES algorithms that will generate the references for the controller of the boost DC-DC converter and air regulator. The optimization function and performance indicators (such as FC net power, FC electrical efficiency, fuel efficiency, and fuel economy) have a multimodal behavior in dithers’ frequency. Furthermore, the optimum in the considered range of frequencies depends on the load level. So, the best value could be selected as the frequency where the optimum is obtained for the most load levels. Considering a dither frequency of 100 Hz selected as the best value, the sensitivity analysis of the fuel economy is further analyzed for different values of the weighting parameter keff, highlighting the multimodal feature in the parameters for the optimization function and fuel economy as well. A keff value around of 20 lpm/W seems to give the best fuel economy in the full range of load.

Analysis, Design, and Control of Bidirectional Cascoded Configuration for a Fuel Cell Hybrid Power System

2010 ◽  
Vol 25 (6) ◽  
pp. 1565-1575 ◽  
Author(s):  
Wei-Shih Liu ◽  
Jiann-Fuh Chen ◽  
Tsorng-Juu Liang ◽  
Ray-Lee Lin ◽  
Ching-Hsiung Liu
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Cell Hybrid ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Analysis Design ◽  
And Control ◽  
Fuel Cell Hybrid
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