Aggregator operations considering authentication for electrical charging of EVs

As interest on the Smart Grid technology has recently increase, research and development of the electric vehicle(EV) as well as studies on the renewable energy, distributed generation and energy storage have been actively conducted. The Electric Vehicle (EV) is an important component in the smart grids, playing a role of the electrical storage component with high capacity. It is an entity to be able to buy and sell the electricity in the grid, but it cannot directly join the electricity market because its capacity is not sufficiently large to make deals in the market. The aggregator buys and sells electricity on the behalf of EVs and negotiates electricity prices in the market. We propose Aggregator operations with an authentication procedure to discriminate an individual user and how an EV working together with the aggregator when charging the EVs is shown.