Electric automobile charging station orderly charging method based on double-layer optimization algorithm

Abstract

The invention provides an electric automobile charging station orderly charging method based on a double-layer optimization algorithm. The genetic algorithm is adopted in an upper layer to encode dispatching plans Pj,t of various charging stations, an initial population is formed, a fitness function is F, then the algorithm is used for iteration, and the Pj,t optimal solution is finally obtained;then, the optimal solution is transmitted to various charging stations of a lower layer; an electric automobile charging path selecting mechanism is considered in the lower layer, and an ant colony algorithm is adopted for solving; electric automobile parameters, position information, charging station information and the like are input firstly, the lower-layer model minimum dispatching deviation function f1 is calculated, based on the minimum deviation and constraint, the ant colony algorithm is adopted for calculating the target function f, an electric automobile optimal charging scheme is formed, return to the upper layer is conducted for continuous optimization, and according to the solving end condition, the upper-lower-layer dispatching deviation meets the convergence criterion. The upper layer model optimization target is load peak clipping and valley filling, and a lower layer model is used for shortening the electric automobile charging outgoing time and reducing the charging expense.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, in particular to an orderly charging method for electric vehicle charging stations based on a double-layer optimization algorithm. Background technique [0002] In recent years, the global energy crisis has become increasingly prominent, the harm of air pollution and global temperature rise has been increasing, and people's attention to energy and environmental issues has also been increasing. Automobiles are an important means of transportation for people, and traditional vehicles mainly provide energy supply in the form of fuel, and most of them have the disadvantages of high energy consumption and high pollution. While promoting economic development, the traditional automobile industry has also exacerbated the problems of energy shortage and environmental degradation. Electric vehicles can not only reduce the impact of transportation network on climate change because of their energy ...

AI Technical Summary

Problems solved by technology

Most of the charging methods currently studied assume that electric vehicles adopt slow or fast charging modes. In the future, charging stations can provide multiple charging modes such as slow charging, fast charging, and battery replacement, and formulate dynamic time-of-use charging electricity prices to guide electric vehicle users according to their own needs. Need to choose, but so far there are few literature designs

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