Reduction of On-board Hydrogen Storage Requirement in Fuel Cell Electric Vehicle

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Date
2018-10-25
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MPUAT, Udaipur
Abstract
The ever increasing population causes the tremendous increase in the number of automobiles nowadays. These automobiles mainly rely on the conventional internal combustion engines (ICE) which consumes mainly the petroleum for their propulsion which emits carbon dioxide (CO2) along with other harmful gases which are causing damage to both environment and man-kind. Thus the present-days are crucial for research and development of electric vehicles which emits zero greenhouse gas emission. There are mainly three types of vehicles: battery electric vehicle, hybrid electric vehicle and fuel cell electric vehicle. Among these types the fuel cell electric vehicle is comparable to ICE in terms of range and better efficiency; thus suitable for medium and long distance travel. However the wide-scale commercialisation of fuel cell electric vehicle pose biggest challenge because of the slow dynamics of fuel cell, cost of manufacturing, transportation, distribution and most importantly the reduction of on-board hydrogen storage requirement. This study emphases on the reduction of on-board hydrogen storage requirement in fuel cell electric vehicle. The reduction in hydrogen storage requirement means reduction in the amount of hydrogen consumed during the course of driving. This reduction in hydrogen consumption is achieved by the using the concept of regenerative braking and hybridization. Firstly the influence of regenerative braking on hydrogen consumption for fuel cell/battery/supercapacitor (FC/BATT/SC) configuration is studied. Then the two hybrid configurations fuel cell/battery (FC/BATT) and FC/BATT/SC are compared to analyse the impact of hybridization on the hydrogen consumption along with regenerative braking case. In order to study the above effects, the frequency splitting operational state control strategy (FSOSCS) is proposed for the energy management. The impact of this strategy on the FC/BATT/SC is also studied based on the various SOC levels. All these results are obtained by modeling of FC/BATT and FC/BATT/SC configuration in MATLAB/Simulink for the standard ECE-15 driving cycle. The results indicate that the employing the regenerative braking along with hybridization results in the significant reduction in hydrogen consumption
Description
Reduction of On-board Hydrogen Storage Requirement in Fuel Cell Electric Vehicle
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Citation
Swarnkar, A. and Maherchandani, J.K.
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