An Optimal Scheduling Method for Electric Vehicle Charging Considering Coordination of Transmission and Distribution with Reactive Power and Voltage Constraints

Abstract

An electric vehicle charging optimization scheduling method considering transmission and distribution coordination with reactive power and voltage constraints. The optimal cost unit combination is obtained by using the improved particle swarm algorithm based on bacterial chemotaxis for the transmission network model, and the model is improved by adding DC power flow constraints. Solving efficiency; through Benders decomposition, the generator set model of the transmission network is divided into main and sub-problems to iteratively solve, further improving the solution efficiency of the model. At the same time, photovoltaic power generation is used for collaborative scheduling to ensure the efficiency of system operation; under the premise of considering security constraints at the distribution network layer, the node preprocessing strategy is adopted to reduce the solution space and improve the overall solution efficiency.

Description

technical field [0001] The invention belongs to the field of power system control, and in particular relates to an electric vehicle charging optimization scheduling method considering transmission and distribution coordination including reactive power and voltage constraints. Background technique [0002] With the current energy crisis and environmental pollution problems becoming more and more serious, electric vehicles have ushered in a major opportunity for their own development. Major countries in the world have successively introduced and implemented a number of policies and measures to support the research of electric vehicles and promote the development of the new energy vehicle industry. Development has achieved certain results so far. However, because the grid connection of electric vehicles with large-scale disorderly charging and discharging will bring huge security and economic threats to the power grid, it is a major difficulty to study orderly charging and disc...

AI Technical Summary

Problems solved by technology

However, since large-scale disorderly charging and discharging of electric vehicles connected to the grid will bring huge security and economic threats to the power grid, it is currently a major difficulty to study the orderly charging and discharging of electric vehicles and optimize economic dispatch.

At the same time, it is more complicated to deal with large-scale nonlinear programming problems, so it is also studied for mixed nonlinear large-scale solving problems

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