Vulnerability Assessment of Power Transportation Coupling System under Electric Vehicles Grid Connection
A vulnerability assessment method based on maximum flow theory for electric vehicle grid connection was proposed for the power transportation coupling system.Firstly,a power transportation coupling network model was established,and based on it,vulnerability indicators were put forward.Then,scenarios such as charging station failure and charging demand redistribution were considered to evaluate the vulnerability of the power transportation coupling system.The key lines of the electric vehicle grid connected power system were analyzed and identified using calculation examples.The results show that the higher the index of the line,the greater the impact on the point network.The effectiveness of the method is verified through the residual capacity of the network.
electric vehicles grid connectionpower-traffic coupling systemcharging stationredistributionvulnerability