Fault detection of a PEMFC system based on delayed LPV observer

This work deals with the fault estimation of actuator fault for a polymer electrolyte membrane fuel cell (PEMFC) using descriptor approach. The main contribution of this paper is to consider unknown inputs and time delay in the output. Delay-dependent sufficient conditions for the design of an unkno...

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Vydáno v:International journal of hydrogen energy Ročník 45; číslo 19; s. 11233 - 11241
Hlavní autoři: Bougatef, Z., Abdelkrim, N., Aitouche, A., Abdelkrim, M.N.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 03.04.2020
Elsevier
Témata:
Engineering Sciences
Fault estimation
Fuel cells
LPV system
Time-delay
Unknown input observer
Time-delay
Unknown input observer
Fault estimation
LPV system
Fuel cells
Time-delay Systems
Fuel cell
ISSN:0360-3199, 1879-3487
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Shrnutí:This work deals with the fault estimation of actuator fault for a polymer electrolyte membrane fuel cell (PEMFC) using descriptor approach. The main contribution of this paper is to consider unknown inputs and time delay in the output. Delay-dependent sufficient conditions for the design of an unknown input observer with time delays are given in terms of linear matrix inequalities (LMIs). For that purpose, an unknown input observer (UIO) for delayed LPV model is designed. Firstly, by considering the faults as auxiliary states, we obtain an augmented LPV system. An algorithm scheme is developed in order to compute the UIO proposed for the augmented system with actuator faults, secondly. Basing on the Lyapunov theory, the convergence and the stability of the UIO are analyzed. Finally and in order to apply the proposed fault diagnosis approach, the time delay is related to the mass flow oxygen in the anode of a PEMFC and actuator faults such as the compressor outlet mass flow rate and the return manifold outlet orifice are designed. Simulation results prove the effectiveness of this approach. •Fault diagnosis of Linear Parameter Varying system with time-delay.•Fault diagnosis of Linear Parameter Varying system with time-delay.•The designed observer depends to the time-delay.•Fault diagnosis of Linear Parameter Varying system with time-delay.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2018.11.053