Effect of Station Heights on Energy Efficiency in a Metro Line Using Regenerative Braking
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Traffic problems as well as air pollution in dense urban areas can be reduced by an extensive rail transport network. One of the main operation costs of rail systems is due to the traction energy consumption of the trains. Although, rail systems are quite energy efficient, this efficiency can further be increased by different methods. One of these methods is the optimization of the alignment of the railway in order to reduce energy consumption of the line.This paper examines the effect hump design of the alignment in which stations are positioned slightly higher than the mid- sections. A test line with 6 stations is modeled for different height differences between stations. Several headways are used on the test cases with the help of a simulation program called Hi-SimuX where trains with regenerative braking capability are taken into account. Energy consumption values and regenerative energy usage rate (receptivity) of these models and scenarios are given in comparative tables.