Electric vehicle charging network chance constraint planning method considering random charging load

Abstract

The invention provides an electric vehicle charging network chance constraint planning method considering a random charging load. The method comprises the following steps: 1, giving a planning boundary condition; 2, establishing an electric vehicle charging network stochastic programming model based on opportunity constraints; 3, designing a chromosome coding scheme and crossover and mutation operators, and solving the electric vehicle charging network stochastic programming model by adopting a genetic algorithm. The method has the advantages that the electric vehicle charging network stochastic programming model based on chance constraint is adopted, the construction address and capacity of the electric vehicle charging station can be optimized on the premise of considering charging load stochastic characteristics, and the network loss electric quantity of a power distribution system planning typical day is reduced; by designing a chromosome coding scheme and crossover and mutation operators in a genetic algorithm and combining distribution system probabilistic load flow analysis, an optimal planning scheme of an electric vehicle charging network can be quickly and accurately obtained.

Description

technical field [0001] The invention relates to the field of electric vehicle charging network planning, in particular to a chance-constrained programming method for electric vehicle charging networks considering random charging loads. Background technique [0002] In recent years, with the gradual depletion of fossil fuels and the increasing environmental pollution, clean energy vehicles represented by electric vehicles have become increasingly popular. At present, the charging power of a single electric vehicle can reach tens of kilowatts. Therefore, as an important place for electric vehicle charging, the charging load of electric vehicle charging stations can reach hundreds or even thousands of kilowatts, becoming one of the most important loads in the power distribution system. one. An unreasonable electric vehicle charging network will not only hinder the development of electric vehicles, but also deteriorate the operating conditions of the power distribution system. ...

AI Technical Summary

Problems solved by technology

However, the existing planning methods do not consider the impact of the random characteristics of electric vehicle charging load on the operating conditions of the power distribution system, which has certain limitations and is difficult to provide reference for the construction of electric vehicle charging network

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