scholarly journals Hybrid Adaptive Control for PEMFC Gas Pressure

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5334
Author(s):  
Jing Chen ◽  
Chenghui Zhang ◽  
Ke Li ◽  
Yuedong Zhan ◽  
Bo Sun
Keyword(s):  
Proton Exchange Membrane ◽  
Control Method ◽  
Supply System ◽  
Proton Exchange ◽  
Decoupling Control ◽  
Hybrid Adaptive Control ◽  
Classical Control ◽  
Exchange Membrane ◽  
Gas Supply ◽  
Fuzzy Adaptive

This paper addresses the issues of nonlinearity and coupling between anode pressure and cathode pressure in proton exchange membrane fuel cell (PEMFC) gas supply systems. A fuzzy adaptive PI decoupling control strategy with an improved advanced genetic algorithm (AGA) is proposed. This AGA s utilized to optimize the PI parameters offline, and the fuzzy adaptive algorithm s used to adjust the PI parameters dynamically online to achieve the approximate decoupling control of the PEMFC gas supply system. According to the proposed dynamic model, the PEMFC gas supply system with the fuzzy–AGA–PI decoupling control method was simulated for comparison. The simulation results demonstrate that the proposed control system can reduce the pressure difference more efficiently with the classical control method under different load changes.

Generalized Predictive Control for Gas Supply System in a Proton Exchange Membrane Fuel Cell

2012 ◽  
Vol 512-515 ◽  
pp. 1380-1388 ◽  
Author(s):  
Ai Min An ◽  
Hao Chen Zhang ◽  
Xin Liu ◽  
Li Wen Chen
Keyword(s):  
Fuel Cell ◽  
Predictive Control ◽  
Pressure Difference ◽  
Proton Exchange Membrane ◽  
Oxygen Supply ◽  
Supply System ◽  
Proton Exchange ◽  
Generalized Predictive Control ◽  
Exchange Membrane ◽  
Gas Supply

Gas supply system in a proton exchange membrane fuel cell power system consists of hydrogen supply and oxygen supply. In order to improve the system output performance and maintain the pressure difference between the anode and cathode at the setting points under the variational load currents, a generalized predictive control strategy is applied to the gas supply system of a proton exchange membrane fuel cell in this paper. The fuel cell stack and gas supply system were modeled for the purpose of performance analysis and controller design. And then the designed generalized predictive controller was implemented to control the hydrogen flow rate and oxygen compressor voltage. The simulation results illustrated that the proposed controller can provide better response characteristics of the pressure difference, hydrogen and oxygen supply system as compared with PID controller.

scholarly journals Data-Driven Control for Proton Exchange Membrane Fuel Cells: Method and Application

2021 ◽  
Vol 9 ◽  
Author(s):  
Jiawen Li ◽  
Kedong Zhu ◽  
Tao Yu
Keyword(s):  
Fuel Cells ◽  
Pid Controller ◽  
Proton Exchange Membrane ◽  
Control Method ◽  
Proton Exchange ◽  
Data Driven ◽  
Air Supply ◽  
Optimal Control Method ◽  
Policy Gradient ◽  
Exchange Membrane

A data-driven optimal control method for an air supply system in proton exchange membrane fuel cells (PEMFCs) is proposed with the aim of improving the PEMFC net output power and operational efficiency. Moreover, a marginal utility-based double-delay deep deterministic policy gradient (MU-4DPG) algorithm is proposed as a an offline tuner for the PID controller. The coefficients of the PID controller are rectified and optimized during training in order to enhance the controller’s performance. The design of the algorithm draws on the concept of marginal effects in Economics, in that the algorithm continuously switches between different forms of exploration noise during training so as to increase the diversity of samples, improve exploration efficiency and avoid Q-value overfitting, and ultimately improve the robustness of the algorithm. As detailed below, the effectiveness of the control method has been experimentally demonstrated.

Development of PEMFC Systems for Space Power Applications

2003 ◽  
Author(s):  
Kerri McCurdy ◽  
Arturo Vasquez ◽  
Karla Bradley
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
High Energy ◽  
Proton Exchange ◽  
Oxygen Gas ◽  
Product Water ◽  
Exchange Membrane ◽  
High Energy Storage Density ◽  
Gas Supply

Space power applications historically include fuel cells due to the high energy storage density of hydrogen and oxygen compared to batteries. Fuel cells are continuously under development to incorporate latest technology and focus on specific details of fuel cells systems relevant to harsh space transportation environments. The National Aeronautics and Space Administration is developing proton exchange membrane fuel cells systems for space power applications because of the potential for longer life, reduction in cost, and increase in safety compared to current alkaline fuel cell technology. Space fuel cell applications utilize oxygen instead of air, which introduces better performance but greater hazards. Circulation of reactants is beneficial for these systems to aid in removal of product water from the fuel cell stack and to humidify reactant fluid streams. Current space fuel cell prototype systems use a simple but effective pump for reactant recirculation known as a gas ejector. A gas ejector uses a high-pressure primary gas supply to produce suction to a secondary fluid at a lower pressure. A gas and water separator is then necessary to remove the fuel cell product water from the unutilized recirculated oxygen. The National Aeronautics and Space Administration is analyzing and testing several different means to separate the oxygen gas and water in both microgravity and increased gravity conditions. This paper addresses specific components and design concerns for proton exchange membrane fuel cell systems for space power applications.

Research of Current-Sharing Control Strategy of Parallel PEMFC DC Power Supply System

2014 ◽  
Vol 694 ◽  
pp. 173-178
Author(s):  
Lei Xu ◽  
Ye Xu ◽  
Jin Quan Wang ◽  
Jian Hua Fang ◽  
Shan Luo
Keyword(s):  
Power Supply ◽  
Proton Exchange Membrane ◽  
Power Supply System ◽  
Supply System ◽  
Proton Exchange ◽  
Current Sharing ◽  
Dc Power ◽  
Dc Power Supply ◽  
Set Up ◽  
Exchange Membrane

For the problems of different parameters PEMFC (Proton Exchange Membrane Fuel Cell) applied to dc micro-grid at the same time, the basic framework of two parallel PEMFC dc power supply system was put forward in this paper, meanwhile, the characteristics of this system was analyzed. For the problem of branch current distribution of parallel system, this paper set up the small signal mathematical model of BUCK connected in parallel, designed the control circuit of current-sharing of this system. Finally ,the simulation experiments verified the accuracy and rapidity of current sharing and the reliability and stability of this system, when the sub-circuit was fault.

Control-oriented LPV Modeling for the Air Supply System of Proton Exchange Membrane Fuel Cells

Fuel Cells ◽  
2018 ◽  
Vol 18 (4) ◽  
pp. 433-440 ◽  
Author(s):  
F. X. Chen ◽  
J. R. Jiao ◽  
S. G. Liu ◽  
Y. Yu ◽  
S. C. Xu
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Supply System ◽  
Proton Exchange ◽  
Air Supply ◽  
Exchange Membrane
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