Impact of Communication Network on V2G System in a Smart Grid Scenario

Electric Vehicles(EVs) are considered as alternate sources of energy in a smart grid. The energy from EVs are exchanged with the electric grid using Vehicle to Grid (V2G) network. It also helps in bidirectional communication between EVs and the electric grid. This paper proposes a V2G system with communication technologies integrated in it. Multiple controllers and aggregators are considered in V2G system to distribute power among different entities such as substations, sub feeders, charging stations(CS) and EVs. The communication channels between entities of V2G network are simulated in network simulation tool ns2 as a wired cum wireless scenario. Communication network performance parameters such as average delay, throughput and packet delivery ratio(PDR) are calculated for different packet error probabilities and different number of EVs using awk scripts. The average delay obtained is within the delay limit of 2 seconds to 5 minutes required for V2G applications.