Author(s)

T. Sugimoto

Abstract

Coefficient of regenerative energy for commuter and light-traffic railways T. Sugimoto Pre Railway Technical Research Institute, Japan Abstract Cars currently used in commuting and light-traffic sections are all of the inverter control regenerative brake type. It is very important to know the value of the effective coefficient of regenerative energy (the ratio of the regenerative energy to total brake energy)(after this we express the effective coefficient) in actual operations in order to carry out energy conservation and maintenance. Field tests have proven that the value of the effective coefficient is quite low in light-traffic sections, while it was sufficiently high in commuting sections. Since there is a need to discuss measures to improve the effective coefficient in light-traffic sections, we simulated measures to shorten train length and equip substations with inverters and a tie-feeding system. 1 Introduction All new cars currently used in both commuting

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