Providing energy management of a fuel cell-battery hybrid electrical vehicle

On account of the concern of the fossil fuel is depleting and its negative effects on the environment, interest in alternative energy sources is increasing day by day. However, considering the importance of transport in human life, instead of oil and its derivatives fueled vehicles with internal combustion engines, electrical vehicles which is sensitive to the environment and working with electrical energy has begun to development. Nowadays, , one of the most important candidate in many areas for energy production is fuel cells which using hydrogen as a fuel. Fuel cells work quieter and cleaner than the other energy conversion systems. Additionally efficiency of fuel cells as compared with the internal combustion engines are high and fuel cells has advantages such as not producing emmissions during operation and not having moving parts. Electrical vehicles has disadvantages as limited range, poor performance and low efficiency compared with the internal combustion engine vehicles. In order to eliminate these problems, recovering regenerative braking and to develop the energy management strategy in electrical vehicles are attached importance to ongoing studies. In this study, simulation study was carried out for providing energy management and recovering regenerative braking in fuel cell-battery hybrid electrical vehicle. Load sharing is provided in that much of the power demand of the vehicle by the fuel cell and instantaneous and negative power demand of the vehicle by the battery. Obtained results of the study are given. Keywords: Electrical vehicles, fuel cell, battery, regenerative braking, energy management