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Journals / Turkish Journal of Electrical Engineering and Computer Science / 2015 / Cilt: 23 - Sayı: 1

Control of oxygen excess ratio in a PEM fuel cell system using high-order sliding-mode controller and observer

Seyed Mehdi RAKHTALA
Abolfazl Ranjbar NOEI
Reza GHADERI
Elio USAI
Pages
255–278
Publication Date
2015-03-15
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results verify that the cascade provides accurate reference tracking while the single-loop presents faster convergence.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The main objective of this manuscript is to design a high-order sliding-mode observer to provide finite time estimation of unmeasurable states (x4: oxygen mass, x5: nitrogen mass) together with the oxygen excess ratio (ratio of the input oxygen flow to the reacted oxygen flow in the cathode).
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Key Findings & Data:The estimated oxygen excess ratio is controlled in a closed-loop system using 2 distinct sliding-mode approaches: a cascaded super twisting controller and a single-loop suboptimal structure.
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Conclusion & Impact:The results verify that the cascade provides accurate reference tracking while the single-loop presents faster convergence.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Proton exchange membrane fuel cell · oxygen excess ratio · high-order sliding-mode observer

Abstract

The main objective of this manuscript is to design a high-order sliding-mode observer to provide finite time estimation of unmeasurable states (x4: oxygen mass, x5: nitrogen mass) together with the oxygen excess ratio (ratio of the input oxygen flow to the reacted oxygen flow in the cathode). This is done by applying second-order sliding modes through either super twisting or suboptimal controllers to control the proton exchange membrane fuel cell's breathing. The estimated oxygen excess ratio is controlled in a closed-loop system using 2 distinct sliding-mode approaches: a cascaded super twisting controller and a single-loop suboptimal structure. Simulation results are presented to make a quantitative comparison between the cascade and the single-loop configuration. The results verify that the cascade provides accurate reference tracking while the single-loop presents faster convergence.

Özet

The main objective of this manuscript is to design a high-order sliding-mode observer to provide finite time estimation of unmeasurable states (x4: oxygen mass, x5: nitrogen mass) together with the oxygen excess ratio (ratio of the input oxygen flow to the reacted oxygen flow in the cathode). This is done by applying second-order sliding modes through either super twisting or suboptimal controllers to control the proton exchange membrane fuel cell's breathing. The estimated oxygen excess ratio is controlled in a closed-loop system using 2 distinct sliding-mode approaches: a cascaded super twisting controller and a single-loop suboptimal structure. Simulation results are presented to make a quantitative comparison between the cascade and the single-loop configuration. The results verify that the cascade provides accurate reference tracking while the single-loop presents faster convergence.

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Cite This Article

RAKHTALA, S. M., NOEI, A. R., GHADERI, R., USAI, E. (2015). Control of oxygen excess ratio in a PEM fuel cell system using high-order sliding-mode controller and observer. Turkish Journal of Electrical Engineering and Computer Science, Cilt: 23 - Sayı: 1, 255–278. https://ajindex.com/articles/187579

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