Abstract
Rail transport around the world is developing very fast. There is no doubt that in the future it will be one of the most used transportation means. Different forms of railway transport have been used since its birth such as steam locomotives, Diesel electric locomotive, electric locomotives and Magnetic levitation (MAGLEV) trains. This paper aims at reducing power consumption in auxiliary system of Electric locomotives which use electrical power as a prime mover by producing electricity through train motion. Simulation in Matlab is done whereby a permanent magnet DC motor is attached to train wheel axle and with the relative motion of the rotor in the magnetic field of the permanent magnet stator produced by rotation of axles generate electricity which is stored in batteries and then supplied to auxiliary system of the train. The simulation of the system demonstrated that electricity produced is enough to power the auxiliary system, hence reducing power consumption by the train.
Highlights
Electrical energy is something expensive to generate around the world especially in Africa
This principle of generation is the one used in electric generators among which a permanent magnet DC generator has been chosen in this paper due to its different advantages such as being relatively smaller in size, no need of field excitation winding, construction is simpler, no need of electrical supply for field excitation, PMDC generators are relatively more efficient and they are cheap in construction cost[3]
The permanent magnet DC generator is the heart of the system generating voltage output of 300V minimum to feed the auxiliary system with power
Summary
Electrical energy is something expensive to generate around the world especially in Africa. The power spent in the auxiliary system accounts almost 30% of the total consumed power It can be reduced and the saved amount of it can be used in other energy requirement systems outside of the train such as lighting offices, ticket selling machines ...etc. Other conversion forms are gravitational energy which is converted into mechanical energy and converted into electrical energy; solar energy converted directly into electrical energy or into thermal before converting it back to electrical energy and Nuclear energy which goes through a conversion process to give electrical energy It can clearly be seen from figure 2 that energy carriers used for electricity generation, 67% of them are from fossil fuels which are depleted faster than their production process and are not environment friendly. Due to complexity of energy conversion system, the price of electric energy is high and its efficient use is of paramount importance including its use in electrical railways
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
