A charging control method and system based on dual energy

The present invention relates to a charging control method and system based on dual energy by calculating a predetermined number of vehicles allowed within the range of costs for charging, and a charging amount of the charging unit taking the number of nodes to be charged at the beginning period of the automobile, and a charging station number of vehicles within a preset allowable charging cost range as a unit charging time period to allow the minimum number of charging car, at a preset cost constraints ensure prerequisite, so that as many automobile charging, so that the car waiting for the charging time is minimized, because of cost constraints, and so the charging time period as much as possible in the unit consumption of renewable resources, purchase power from the grid can be reduced, thereby reducing the cost of charging.