Flexible and Economical Dispatching of Power System Considering Cooperative Optimization of Electric Vehicles
After large-scale electric vehicles(EV)are connected to the grid,it poses challenges to the safe operation of the sys-tem.Due to the constraints of EV operation,the traditional economic scheduling problem also needs to be reanalyzed.In the paper,a flexible economic dispatching model of power system considering EV cooperative operation is established based on the optimal total dispatching cost and the time and space constraints of EV in the short-term optimization process.The simulation results show that the proposed method can reasonably schedule the resources in the system,effectively reduce the total dispatc-hing cost.The power generation strategy considering EV dual operation mode(charge/discharge)alleviates the peak load.In addition,the Newton-Raphson(NR)method is easier to obtain an economic dispatching scheme than the approximate loss method.The coordinated operation after EV grid connection greatly improves the economy and reliability of the system.
electric vehicleeconomic dispatchingdual operation modeNewton-Raphson method