Electric vehicle charging real-time optimization dispatching method

Abstract

The invention discloses an electric vehicle charging real-time optimization dispatching method. The technical scheme adopted by the invention is as follows: Net-Electrified Transportation CooperativeSystem Architecture Based on Vehicle Interaction; A micro traffic assignment model based on travel chain tracking is established to track and simulate the real-time information of driving behavior, location distribution, state of charge and charging demand of electric vehicle users. Charging station selection and navigation strategy; A two-layer real-time optimal dispatching model is constructed to determine the specific charging scheme of electric vehicles in each charging station, which takes into account the safety of distribution system and the waiting time of users. YALMIP / CPLEX efficientcommercial solver is used to solve the upper and lower level problems iteratively. The invention can not only alleviate the traffic jam near the charging station; But also can make the load distribute evenly, reduce the network loss and ensure the safe and economical operation of the power network; Also can meet the EV charging demand, improve customer satisfaction, and ultimately achieve the overall optimization of electrified transportation system operation, taking into account the interests of many aspects.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a real-time optimal scheduling method for electric vehicle charging taking into account road-network-vehicle interaction characteristics. Background technique [0002] In recent years, with the development of battery technology and the reduction of its production cost, electrified transportation with electric vehicles as the core is developing rapidly, and the coupling degree of urban transportation system and power distribution system is deepening. Some charging infrastructure, such as charging stations, have also been built to meet the charging needs of electric vehicles. Due to the randomness of the charging load of electric vehicles in time and space, the free charging behavior of large-scale electric vehicles will have a negative impact on the safe and stable operation of the power distribution system and traffic system, such as increasing the system network loss and peak lo...

AI Technical Summary

Problems solved by technology

There are still the following problems in the existing research on the orderly dispatching strategy of charging stations: ① It is mainly aimed at the orderly management of a single charging station. Considering the charging station alone, it is difficult to obtain the overall optimal solution; ②The interests of the grid side are emphasized and the influence of user psychological factors is ignored, and the charging station scheduling strategy will affect the user's choice of charging station; ③The power demand of the charging station is usually Given, or following a certain probability distribution, it cannot accurately reflect the spatio-temporal distribution of charging demand under the constraints of the traffic network

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