Electric vehicle load management method based on charging station pricing strategy

Abstract

The invention discloses an electric vehicle load management method based on a charging station pricing strategy. The method comprises the following steps: establishing a power distribution network optimal power flow model by taking power distribution network power generation total cost minimization as a target; establishing an optimal charging station and a charging time period selection model of the electric vehicle user by taking the charging cost minimization of the electric vehicle user as a target; converting the optimal power flow model of the power distribution network into a linear programming model; an upper-layer problem is an optimal power flow problem of the power distribution network, and a lower-layer problem is an optimal charging station and charging period selection problem of an electric vehicle user; converting the double-layer programming model into a single-layer mixed integer linear programming model; and obtaining an optimal strategy of charging station pricing by solving the single-layer mixed integer linear programming model, and providing an optimal charging scheme for an electric vehicle user. Interaction between an electric vehicle user and a power grid and a traffic network is enhanced by using a charging station pricing strategy, the charging cost of the electric vehicle user is reduced, traffic jam can be relieved, and safe and economical operation of the power grid can be promoted.

Description

technical field [0001] The invention belongs to the application technical field of coupled power systems and traffic systems, and in particular relates to an electric vehicle load management method based on charging station pricing strategies. Background technique [0002] Electricity systems and transportation systems are two major contributors to greenhouse gas emissions. In the context of "carbon peaking and carbon neutrality", the access to new energy and the electrification of the transportation system are important measures to reduce greenhouse gases. Due to the advantages of low carbon and environmental protection, electric vehicles are particularly important for realizing the "double carbon" goal. [0003] With the gradual popularization of electric vehicles, the charging of electric vehicles has become a major challenge. On the one hand, the disorderly connection of a large number of electric vehicles to the power system will bring certain challenges to the econom...

AI Technical Summary

Problems solved by technology

[0004] At present, the research on the charging dispatch strategy of electric vehicles mainly focuses on the power grid as the leading factor, without considering many factors that affect the charging behavior of electric vehicle users.

Images