An Adaptive Observer for Recirculation-Based Solid Oxide Fuel Cells
An Adaptive Observer for Recirculation-Based Solid Oxide Fuel Cells
复制标题
基于再循环的固体氧化物燃料电池的自适应观测器
DOI:
10.1115/1.4033271
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Das, Tuhin
中科院分区:
文献类型:
--
作者:
Abeysiriwardena, Singith;Das, Tuhin
In this paper, we present an observer design for online estimation of species concentrations in recirculation-based solid oxide fuel cell (SOFC) systems with integrated reformers. For the system considered, on-board reforming of methane results in mixture of several species of different concentrations along the fuel path. The presence of a fuel reformer gives way to coupling of system equations, in turn, increasing species interactions and complexity of the state equations. The knowledge of concentration of species at key locations in the fuel cell can help prevent cell damage and improve longevity. In this regard, the use of sensors to determine species concentration is an invasive process which is expensive to both utilize and maintain. While existing observers are designed either for chemical reactors or for a fuel cell exclusively, the proposed strategy aims to improve on that by considering a combined reformer and fuel cell and designing a nonlinear adaptive observer using readily measured concentrations and selected variables. For estimating certain critical indicators, such as fuel utilization, state transformations have been used in the design to obtain a more versatile and computationally efficient reduced order observer. The study develops detailed stability analysis of the observers and quantifies the effect of uncertainties on observer performance.
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影响因子:
--
作者:
Tuhin Das;S. Narayanan;R. Mukherjee
通讯作者:
R. Mukherjee
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Tuhin Das;A. Slippey
通讯作者:
A. Slippey
影响因子:
4.7
作者:
M. Soroush
通讯作者:
M. Soroush
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Tuhin Das;R. Mukherjee
通讯作者:
R. Mukherjee
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
N. M. Iyer;A. Farell
通讯作者:
A. Farell