This paper focuses on the use of model 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 in cooperation by a Li-ion battery are presented. In this research has been investigated the Li-ion battery and the supercapacitor as hybrid energy storing device for the same task and its effectivness under operation of a suitable energy control system. The available decreasing ratio of the needed energy storage at case 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 60%. We presented the reason and the advantages of applied 'beforehand charged energy' ECo and 'constant charging power' PCt in simulation. The "correction factor" means a proportion rate of the motoring power by that the railcar gets down from overhead line under controlling of energy management. The available decreasing ratio of the needed capacitance C with this presented improved energy control method is about from 25 % to 35 %, which is significant value. The available energy saving in metro railcar generally is over 40 %. We presented a method to decreasing the need capacitance of energy storage device by operating a newer energy-control system as a newer energy management. The available decreasing ratio of the needed hybrid energy storage system at case SCAP is 25 % to 40 % with this improved energy control method, which are significant values as decreasing in volume, mass and price. This novel process and its results are practically independent of the type of the traction motor. The available decreasing ratio of the needed energy storage at case SCAP is 25 % to 40 % with this unproved energy control method, which are significant values as decreasing in volume, mass and price. Mass reduction of this hybrid storage system is significant, about 50 %.
New energy management and hybrid energy storage for metro railcar
EVS, Electric Vehicle Symposium, 26 ; 2734-2742
2012
9 Seiten, 26 Bilder, 8 Quellen
Aufsatz (Konferenz)
Englisch
Energiespeicherung , Energieregelung , Simulationsmodellbildung , Energiesparen , Kapazität (Kondensator) , Energiemanagement , Freileitung , erneuerbare Energie , Kraftschluss , Fahrmotor , Triebwagen , Untergrundbahn , Elektrofahrzeug , Rekuperationsbremsung , Lithium-Ionen-Akkumulator , Doppelschichtkondensator , Gewichtsminimierung , Kostensenkung
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