Abstract
This paper presents an interesting approach to observe the effects of the load variations on the performance of high temperature polymer electrolyte membrane fuel cell system, such as: hydrogen and air flow rate, output voltage, power and efficiency. The main advantage of this approach is to analyse the internal behaviour of the fuel cell like current-voltage characteristics during energy conversion, when the load is varying dynamically. This approach of power system simulation models fuel cell system by integrating 3D-COMSOL model of high temperature polymer electrolyte membrane fuel cell with MATLAB/Simulink model of the fuel cell system. The MATLAB/Simulink model for the fuel cell system includes the fuel cell stack (single cell), load (sequence of currents), air supply system (air compressor), fuel supply system (hydrogen tank), and power-efficiency block. The MATLAB/Simulink model is developed in such a way that one part behaves as an input model to the 3D-COMSOL model of the fuel cell system, whereas second part behaves as an output model that recovers the results obtained from the 3D-COMSOL of the fuel cell. This approach of power system modelling is useful to show the performance of high temperature polymer electrolyte membrane fuel cell in much better and accurate way.
Highlights
The exponential growth in electricity demand, depletion in fossil fuel and production of environmental pollutions, global concerns regarding environmental pollution, and deregulation in the electrical power market have driven the application of distributed energy resources to experience a boost in the power systems as a mean of producing electrical energy [1]–[6]
High Temperature Polymer Electrolyte Membrane Fuel Cell (HT-PEMFC) is considered to be the generation fuel cell [16], because the electrochemical kinetics for electrode reactions is enhanced as compared to Low Temperature Polymer Electrolyte Membrane Fuel Cell (LT-PEMFC)
This paper propose a new method which aims to identify the effect of load variation on performance of the HT-PEMFC by integrating HT-PEMFC model of COMSOL with the fuel cell system model of the MATLAB/Simulink by using MATLAB programming
Summary
The exponential growth in electricity demand, depletion in fossil fuel and production of environmental pollutions, global concerns regarding environmental pollution, and deregulation in the electrical power market have driven the application of distributed energy resources to experience a boost in the power systems as a mean of producing electrical energy [1]–[6]. Fuel cells have many characteristics such as they are environmental friendly because they do not use fossil fuels and do not produce emissions They have higher efficiency in the range of 60-80%, they require low maintenance because they are static source of electric power [14] [15] they have comparatively higher efficiency than diesel or gas engines and operate noiselessly. This paper propose a new method which aims to identify the effect of load variation on performance of the HT-PEMFC by integrating HT-PEMFC model of COMSOL with the fuel cell system model of the MATLAB/Simulink by using MATLAB programming This approach is suitable to find the internal behaviour of the HTPEMFC while analysing the variation in load. The rest of the paper is organised as follows: Section II explains methodology of modelling the HT-PEMFC system, Section III presents the results obtained by the MATLAB/Simulink as well as COMSOL, and Section IV presents conclusion and future work follow
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