A Study on the System Configuration for the Flywheel Energy Storage Device to be Applied to the Railway System

摘要

A system configuration to be applied to the railway system using flywheel energy storage system to store regenerative energy which is generated during the braking period of the train is presented. The proposed FESS (Flywheel Energy Storage System) is small scale model and has 100W output power, high rotational speed. In general railway trains generate regenerative energy for 10-20 sec when the train brakes and also high traction energy is needed for very short moment (10 sec) when the train increases the traction force. Considering such characteristics of the railway system energy storage system for the railway should have very fast response property. Among the various energy storage systems flywheel energy storage system has the fastest response property, which means that flywheel ESS is the most suitable for the railway system.