Journal des systèmes électriques et électroniques

Regenerative Braking-Methods to Efficiently Use Regenerated Energy

Abstract

Priya Sharma

One of the important factors of planned urbanization is a sustainable mass urban transport. All most every metro have chosen Metro Rail has the mass urban rail transport. Electricity has always been the main source of energy for urban metro transport as it has all the qualities required for mass urban transport system. Different electric systems have been used world over to supply the electricity used for Mass urban rail transport systems, popularly known as the Traction energy requirement. In this paper the traction energy supplied using 750 V DC is being dealt with. In majority of the metro rail systems, the rolling stock is equipped with regenerative brakings. In the regenerative braking the electric motor can act as a generator recovering the vehicles kinetic energy and converting it into electric energy. In metro rail since the distance between the stations is generally around 1 km, so the frequency of the braking is high so this method can be efficiently used. This highlights the different methods that be used for efficiently using the regenerated power in an a 750 V Dc traction system.