Energy management and hybrid energy storage in metro railcar

This paper focuses on the use of modeling and simulation one of renewable energy. In this paper the results of simulation models by Matlab-Simulink for an urban-metro railcar and some newer methods for reducing the need value of capacitance for energy storage are presented. In this research was been investigated the Li-ion battery and the supercapacitor as hybrid energy storing device for the same task and its effectiveness under operation of a suitable energy control system. The available decreasing ratio of the needed energy storage at SCAP is 25 to 40 % with this improved energy control method, which are significant values as decreasing in volume, mass and price. Mass reduction of our hybrid storage system is significant, about 50 to 60%.