Nonlinear observer based control of PEM fuel cell systems

In this paper, a nonlinear observer based on a Takagi Sugeno approach is developed and applied to a PEMFCS (Proton Exchange Membrane Fuel Cell Stack) in the case of unmeasurable premise variables. The FC model focuses on the auxiliary elements associated to the stack. The challenge is to construct a TS fuzzy observer such that it can asymptotically estimate the states of the considered nonlinear systems despite the unmeasurable premise variables. The results are validated through the use of the professional software AMESim using a co-simulation with Matlab-Simulink.

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“…So from (21) and if we consider each iteration in the sum in (14), we could write each as an inequality:…”

Section: A Observer Designmentioning

confidence: 99%

“…The need for diagnostics [2] and control [14] makes the construction of state observers a requirement. In this regard, the model based approach brings precision and a higher degree of generality but it comes at the price of difficulty in equations modeling and the risk of over complicating the system.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear observer for P.E.M. Fuel Cells using a Takagi-Sugeno approach with unmeasurable premise variables

Olteanu¹,

Gouni²,

Aïtouche³

et al. 2013

3rd International Conference on Systems and Control

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“…The cathode dynamics is developed using the mass conservation principle and the thermodynamic and psychrometric properties of air [4,7,8]. 2 2 2 2 2 2 2 2 2 2 2 , , , …”

Section: Cathode Pressure Modelmentioning

confidence: 99%

“…In this model, it is assumed that pure hydrogen gas is supplied to the anode from a hydrogen tank [4,7,8].…”

Section: Anode Pressure Modelmentioning

confidence: 99%

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Observer Based Nonlinear State Feedback Control of PEM Fuel Cell Systems

Kim¹

2012

Journal of Electrical Engineering and Technology

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-In this paper, the observer based nonlinear state feedback controller has been developed to control the pressures of the oxygen and the hydrogen in the PEM(Proton Exchange Membrane) fuel cell system. Nonlinear model of the PEM fuel cell system was introduced to study the design problems of the state observer and model based controller. A cascade observer using the filtering technique was used to estimate the pressure derivatives of the cathode and the anode in the system. In order to estimate the pressures of the cathode and the anode, the sliding mode observer was designed by using these pressure derivatives. To estimate the oxygen pressure and the hydrogen pressure in the system, the nonlinear state observer was designed by using the cathode pressure estimates and the anode it. These results will be very useful to design the state feedback controller. The validity of the proposed observers and the controller has been investigated by using the Lyapunov's stability analysis strategy.

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