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An adaptive observer design for fuel cell hydrogen estimation

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4 Author(s)
Arcak, M. ; Dept. of Electr., Comput., & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA ; Gorgun, H. ; Pedersen, L.M. ; Varigonda, S.

We present an observer design to estimate the partial pressure of hydrogen in the anode channel of a fuel cell. Our design makes use of a monotonic nonlinear growth property of the voltage output on hydrogen partial pressures at the inlet and at the exit of the channel. By treating the slowly-varying inlet partial pressure as an unknown parameter, an adaptive observer is developed that employs a nonlinear voltage injection term. We then prove robustness of this observer against variations in the inlet partial pressure, and analyze its sensitivity to measurement errors in the voltage.

Published in:

American Control Conference, 2003. Proceedings of the 2003  (Volume:3 )

Date of Conference:

4-6 June 2003

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