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Application of electric power accumulators in traction power supply system in order to increase capacity on «bottleneck» sections

The paper considers issues of increasing capacity on «bottleneck» sections of direct current railways by means of application of electric power accumulators. Selection of electric power accumulators location is carried out with the consideration for grading of track on a section, specific recuperation, dominance of traffic type, rate of electric rolling stops, mode of feeding of intersubstational zones. When determining power consumption and capacity of electric power accumulators a depth of discharge that affects a service life and a state of charge graph that depends on a selected characteristic of charging rate are considered. The procedure of assessing the influence of electric power accumulator operation on capacity is considered on the example of one of the railway sections.