Abstract
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.
Highlights
There has been a continuous effort in reducing the power consumption in traction system by using various Methods
In a regenerative braking system the kinetic energy is converted to electric energy by the same traction motor which acts as a generator while braking
This paper deals with the various technologies that can be used for effective utilization of regenerative energy and the advantageous it will give to the system [1]
Summary
There has been a continuous effort in reducing the power consumption in traction system by using various Methods. In a regenerative braking system the kinetic energy is converted to electric energy by the same traction motor which acts as a generator while braking. A part of this regenerated energy is used by other trains which are in the power mode (Figure 1). This reduces the consumption of net grid electrical energy required for powering trains there by conserving electrical energy and reducing the energy bills. The advantage of using regenerative braking is that unlike the normal braking system there is no heat generated and this will in turn reduce the heat produced in Underground section of the Metro Rail route. This paper deals with the various technologies that can be used for effective utilization of regenerative energy and the advantageous it will give to the system [1]
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