scholarly journals A Non-Intrusive Signal-Based Fault Diagnosis Method for Proton Exchange Membrane Water Electrolyzer Using Empirical Mode Decomposition

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4458
Author(s):  
Farid Aubras ◽  
Cedric Damour ◽  
Michel Benne ◽  
Sebastien Boulevard ◽  
Miloud Bessafi ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Empirical Mode Decomposition ◽  
Flow Rate ◽  
Proton Exchange Membrane ◽  
Water Flow Rate ◽  
Proton Exchange ◽  
Rate Variation ◽  
Mode Decomposition ◽  
Exchange Membrane ◽  
The Impact

This work focuses on a signal-based diagnosis approach dedicated to proton exchange membrane water electrolyzer (PEM WE) anode pump fault. The PEM WE cell measurements are performed with an experimental test bench to highlight the impact of water flow rate in the anode compartment. This approach is non-intrusive, and it can detect anode flow rate variation during the electrolysis and is designed to fulfill online diagnosis requirements. Contrary to electrochemical impedance spectroscopy-based approaches (EIS), this method stands out from existing procedures as a result of its few requirements, excluding any signal with perturbing amplitude. Therefore, the electrolyzer remains continuously available, even while the analysis is performed. The empirical mode decomposition (EMD) is used to decompose the signal variation into a sum of amplitude modulation and frequency modulation (AM-FM) components, called intrinsic mode functions (IMFs). In this work, the PEM WE current signal is decomposed into several IMFs using EMD. Then, the energetic contribution of each IMF is calculated. Experimental results exhibited that the energetic contribution of IMFs can be used as relevant criteria for fault diagnosis in PEM WE systems. This process only requires monitoring of the PEM WE current and has a low computational cost, which is a significant economic and technical advantage.

Empirical Mode Decomposition Applied to Proton Exchange Membrane Electrolyzer for Non-Intrusive Diagnosis

2020 ◽  
Vol MA2020-02 (53) ◽  
pp. 3762-3762
Author(s):  
Farid Aubras ◽  
Cedric Damour ◽  
Michel Benne ◽  
Miloud Bessafi ◽  
Christophe Lin-Kwong-Chon ◽  
...  
Keyword(s):  
Empirical Mode Decomposition ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Mode Decomposition ◽  
Exchange Membrane

Experimental Investigation of Proton Exchange Membrane Fuel Cell With Platinum and Nafion Along the In-Plane Direction

2020 ◽  
Author(s):  
Peng Cheng ◽  
Chasen Tongsh ◽  
Jinqiao Liang ◽  
Zhi Liu ◽  
Qing Du ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Flow Rate ◽  
Proton Exchange Membrane ◽  
Pem Fuel Cell ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Cell Performance ◽  
Gradient Distribution ◽  
Plane Direction ◽  
Exchange Membrane

Abstract In this study, an experimental study has been performed to investigate the effect of in-plane distribution of Pt and Nafion in membrane electrode assembly (MEA) on proton exchange membrane (PEM) fuel cell. Two types of MEAs, such as the gradient and uniform distributions of Pt catalyst and Nafion, are compared under various operating conditions including cathode flow rate, MEA preparation method, Pt loading and relative humidity (RH). The catalyst ink is sprayed onto Nafion membrane or gas diffusion layer (GDL) through a pneumatic automatic spraying device manufactured by ourselves. MEA is prepared by hot pressing. The results show that as flow rate decreases, the MEA with gradient distribution will show a higher voltage at a high current density for catalyst coated membrane (CCM) method. For CCM method, gradient distribution can optimize cell performance under low cathode flow rate, but the optimization effect is weakened when flow rate is too low. Compared with CCM method, the gas diffusion electrode (GDE) method makes the difference value of Ohmic resistance between gradient and uniform distribution very larger, resulting in poor performance improvement. For GDE method, gradient distribution shows no optimization for cell performance under different Pt loadings and RH, but a smaller average Pt loading and fully-humidified reactants can reduce the performance distinction between uniform and gradient distribution. The gradient design of Pt and Nafion along the in-plane direction is a promising strategy to improve the performance of PEM fuel cell. Reasonably controlling the gradient distribution of Pt in the plane direction of cathode can reduce the amount of Pt catalysts and improve efficiency.

Optimal Linear-Quadratic Integral Feedback Controller Design With Disturbance Rejection for Proton Exchange Membrane Fuel Cell

2018 ◽  
Author(s):  
Milos Milanovic ◽  
Verica Radisavljevic-Gajic
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Controller Design ◽  
Proton Exchange ◽  
Control Loop ◽  
Feed Forward ◽  
Feed Forward Control ◽  
Augmented System ◽  
Exchange Membrane ◽  
The Impact

This paper presents, a novel controller design technique that can be used for the Proton Exchange Membrane Fuel Cell to tackle the impact of the sudden stack current disturbances. The proposed controller design consists of three components: a full-state feedback control loop, an integral of error control loop and a feed-forward control loop. The feed-forward control loop is designed to ease the impact of the piecewise continuous current disturbance on the stack voltage. Linearized system matrices are set up in such a way that a new augmented system is formed. Controller gains are calculated by using a quadratic performance criterion which is minimized along the trajectories of the augmented system. Simulation results are presented and discussed.

Study of a Pseudo Bipolar Design for a Piezoelectric Proton Exchange Membrane Fuel Cell With Nozzle and Diffuser

2010 ◽  
Author(s):  
Hsiao-Kang Ma ◽  
Jyun-Sheng Wang ◽  
Ya-Ting Chang
Keyword(s):  
Fuel Cell ◽  
Flow Rate ◽  
Proton Exchange Membrane ◽  
Produced Water ◽  
Three Dimensional ◽  
Proton Exchange ◽  
Cell Performance ◽  
Water Flooding ◽  
Geometrical Parameters ◽  
Exchange Membrane

Previous studies of a piezoelectric proton exchange membrane fuel cell with nozzle and diffuser (PZT-PEMFC-ND) have shown that a PZT device could solve flooding problems and improve cell performance. The results also indicated that the rectification efficiency (γ) of the diffuser elements, the PZT vibrating frequency (f), and the displaced volume per stroke (ΔV) affected the flow rate of the PZT device. The rectification efficiency of the diffuser elements, which is an indicator of the preferential direction, depends on the geometrical parameters (AR and θ) and the Reynolds number. In this study, an innovative design for a PZT-PEMFC-ND bi-cell with pseudo bipolar electrodes was developed to achieve a higher power in the stack design to solve water flooding problems and improve cell performance. This new design, with a reaction area of 8 cm2, contains two cells with two outside anodes and two inside cathodes that share a common PZT vibrating device for pumping air flow. The influence of the varying aspect ratio (AR) of the diffuser elements on the unit cell flow rate were investigated using a three-dimensional transitional model. The results show that a proper AR value of 11.25 for the diffuser with a smaller θ of 5° could ensure a smoother intake of the air and thus better cell performance. A lower AR value of 5.63 resulted in smaller actuation pressure inside the chamber, and thus the produced water could not be pumped out. However, a larger AR of 16.88 induced a blocking phenomenon inside the diffuser element, and thus less air was sucked into the cathode chamber. The performance of the PZT-PEMFC-ND bi-cell could be 1.6 times greater than that of the single cell. This performance may be influenced by the phase difference of the operating modes.

T-S Fuzzy Model-Based Fault Diagnosis of PEM Fuel Cell Engine

2010 ◽  
Vol 34-35 ◽  
pp. 92-97
Author(s):  
Rui Quan ◽  
Shu Hai Quan ◽  
Liang Huang
Keyword(s):  
Fuel Cell ◽  
Fault Diagnosis ◽  
Proton Exchange Membrane ◽  
Fuzzy Model ◽  
Cell Voltage ◽  
Proton Exchange ◽  
Safety And Reliability ◽  
Group A ◽  
On Line ◽  
Exchange Membrane

Proton exchange membrane fuel cell(PEMFC) technology has been greatly promoted in recent years, but the fault diagnosis and predictive maintenance are unneglectable issues in practical work. According to the safety and reliability requirement of 60kW automotive fuel cell engine designed by our group, a fault diagnosis method based on T-S fuzzy model which is tuned and optimized thanks to particle swarm optimization is put forward in this paper. Its inputs include voltage, the lowest single cell voltage, current, temperature and air pressure, by setting the output threshold of T-S fuzzy model at 0.85,when the healthy degree and its variety rate are below 0.85 and 0.05 respectively, the flooding fault is distinguished, if the healthy degree is below 0.85 but its variety rate is above 0.05,drying of the proton membrane is on-line diagnosed successfully, which can provide a guidance to its real-time monitoring and optimized control in future.

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