Electric vehicle cluster charging power optimization method capable of promoting renewable energy consumption

Abstract

The invention relates to an electric vehicle cluster charging power optimization method for promoting renewable energy consumption. The method comprises the following steps: S1, establishing a mathematical model of electric vehicle collector combination configuration and operation, and according to the model, determining an objective function that minimizes the cost of load power supply and the total power loss cost of the electric vehicle, a general constraint condition of power flow analysis and a constraint condition of system stable operation; S2, formulating a two-stage algorithm, and dividing variables into two classes, namely a main problem of EVA optimal configuration and a sub-problem of an optimal charging strategy of a single electric vehicle; S3, dividing the optimized variables of the main-sub-problems into two parts of EVA optimal configuration and power adjustment under the optimal configuration, and iteratively solving the main-sub-problems until the convergence condition is met so as to ensure that the charging plan of each electric vehicle can meet the requirement of the overall target. According to the method, under a given EVA configuration, the optimal configuration of the EVA and the charging power adjustment of the electric vehicle can minimize the total cost.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle charging, and in particular relates to an electric vehicle cluster charging power optimization method for promoting the consumption of renewable energy. Background technique [0002] The energy crisis and increasing environmental pressure in modern society have brought development opportunities for the electric vehicle (EV) industry. Governments in many countries have provided strategic plans to steer the electrification, low-carbon or carbon-free future of transport systems. However, the large-scale popularization of electric vehicles will bring new challenges to the reliability of the power system and the quality of power supply. In order to control a large number of electric vehicles connected to the grid and make them meet the needs of the power system, that is, vehicle-to-grid technology, the electric vehicle cluster controller (EVA) usually acts as an intermediate control between e...

AI Technical Summary

Problems solved by technology

But this model building does not take the power system network into account

The rest of the objective functions are used to find the optimal position and size adjustment of EVA to maximize the profit of EVA, but this ignores some practical problems on the user side, such as the deterioration of power quality during the peak charging period of EVs and all EVs User's needs are met

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