Source Diagnosis of Solid Oxide Fuel Cell System Oscillation Based on Data Driven

Xiaowei Fu, Yanlin Liu and Xi Li
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Xiaowei Fu: College of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan 430065, China
Yanlin Liu: College of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan 430065, China
Xi Li: School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China

Energies, 2020, vol. 13, issue 16, 1-13

Abstract: The solid oxide fuel cell (SOFC) is a new energy technology that has the advantages of low emissions and high efficiency. However, oscillation and propagation often occur during the power generation of the system, which causes system performance degradation and reduced service life. To determine the root cause of multi-loop oscillation in an SOFC system, a data-driven diagnostic method is proposed in this paper. In our method, kernel principal component analysis (KPCA) and transfer entropy were applied to the system oscillation fault location. First, based on the KPCA method and the Oscillation Significance Index (OSI) of the system process variable, the process variables that were most affected by the oscillations were selected. Then, transfer entropy was used to quantitatively analyze the causal relationship between the oscillation variables and the oscillation propagation path, which determined the root cause of the oscillation. Finally, Granger causality (GC) analysis was used to verify the correctness of our method. The experimental results show that the proposed method can accurately and effectively locate the root cause of the SOFC system’s oscillation.

Keywords: solid oxide fuel cell; data-driven; oscillation root cause diagnosis; kernel principal component analysis; transfer entropy; Granger causality (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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