Orderly charging strategy for electric vehicles based on carrier wave communication

Abstract

To solve the problem of the poor wireless signal in the use of charging piles in residential communities, this paper proposes a communication method using a power line carrier in the community charging system to achieve safe and reliable data communication. And the problem is that a large number of electric vehicles charging in a disorderly manner leads to an increase in the total peak load of the grid and affects the safe operation of the grid. In this paper, we propose to develop a suitable orderly charging plan to ensure the safe operation of the grid, with the least electricity price as the optimization target, and combined with V2G technology. The users are guided to charge during the valley period of electricity consumption, and when the grid operation load is too high, the grid operation pressure is linked by discharging electric vehicles to the grid. This strategy takes into account the security of the grid and the economy of the users, and to a certain extent, realizes the purpose of grid scheduling is to cut the peaks and fill the valleys, avoiding the sudden load change