Electric vehicle load demand response-considered network-source-load coordination planning method

Abstract

The invention relates to an electric vehicle load demand response-considered network-source-load coordination planning method. According to the method, firstly, during the load forecasting process, the influence of an electric vehicle is considered, and the probability distribution of the first travel time of the electric vehicle is obtained. Meanwhile, the probability distribution calculation iscarried out on the daily running mileage. Through predicting two parameters, the charge load distribution of the electric vehicle for 24 hours of the day is further predicted and the load distributioninformation is improved. After that, under the condition that the interests of three parties, namely the power grid, the power supply and the load, are considered, the network-source-load coordination planning is carried out. According to the invention, the interests of three parties, namely the power grid, the power supply and the load, are coordinated and planned. Meanwhile, the electric vehicle is taken as one of the influence factors of the load response considered in the charge layer planning process, so that the advantages of three parties are complementarily coordinated and developed.The requirement for the planning work of the power distribution network in a new situation is met. The investment and operation cost of a power grid company is saved. Meanwhile, the maximization of economic benefits of operators is guaranteed. The method has important practical value.

Description

technical field [0001] The invention relates to a network-source-load coordinated planning method considering the electric vehicle load demand response. Background technique [0002] In recent years, the massive access of distributed generation (DG) and the gradual implementation of various demand side response (DSR) projects have had a certain impact on the distribution network planning, but also to the distribution network The grid provides more supply-side and demand-side resources. Among the supporting technologies of the active distribution network, the main research contents are as follows: how to reduce the "unfriendliness" of a large number of distributed renewable energy centralized access to the power grid, how electric vehicles interact with the large power grid, and user-side resources. How to participate in grid response and large-scale cluster interactive scheduling of energy storage components, etc. The current stage of source-network coordination mainly stu...

AI Technical Summary

Problems solved by technology

In addition, the ADN "source-network-load" coordinated programming model not only involves multi-level nesting problems, but also has a joint problem of operation and planning. It is a multi-variable, multi-constrained nonlinear mixed integer programming problem. Traditional mathematical optimization methods and Conventional intelligent algorithms (such as genetic algorithms) are difficult to obtain better optimization results, and the calculation time is long and the convergence performance is poor

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