ABSTRACT
The railway transportation plays important role for public transportation in many big cities, and seems to be the best future plan for the fast growing cities. However, its energy consumption is also huge; hence the energy efficiency of railway systems should be taken into consideration during operation planning. Due to the impact of energy consumption in operating cost, it turns out that, most operators’ interest is to minimize the energy consumptions. There are several techniques mentioned in several research works that include the improvement of speed profiles, charging time of the storage systems, and the torque-speed balancing. However, due to the complex relations between the train speed motion and energy consumption, which are non-linear, analytical results are scarce and available only in a simplified areas [1].
