Smart Energy Management in Electric Transportation System

Air pollution and energy shortage as serious crises , made researchers and industrialists trying to find suitable solutions with the aim of energy management. Electric transportation loads ( especially , electric vehicles and urban metro systems ) , are considered as the major consumers of energy for the electric network . Since the mentioned vehicles, have time overlap with the peak demand of main electric network at the peak time consumption , the feeding procedure has negative impacts on the upstream grid . One of the best solutions is reusing the huge regenerative energy of braking trains . The regenerative energy could be taken to consideration as a distributed generation in electric transportation system as well as the distributed generations of power systems like solar energy resources . Therefore , in this paper an integrated configuration comprised of the urban metro system , charging station for electric vehicles , photovoltaic panels , and energy storage as an interface for energy exchange is introduced to alleviate the problems . The priorities of power consuming , supplying, charging or discharging are defined by a smart energy management system . This system imposes the economic and technical constraints to power flows . By considering this method the profitable consequences are imminent . Supplying the loads by the smart configuration leads to energy management and consequently the reduction of the operation and infrastructure expenses and decreasing the negative impacts on the upstream network by optimizing the model of energy consumption from economic and technical points of view .