Method for predicting transformer capacity of residential area in consideration of access of electric vehicles

A technology for electric vehicles and prediction methods, applied in the direction of load prediction, electrical components, circuit devices, etc. in the AC network, can solve the problem that the estimation method is no longer applicable, and achieve the effect of optimizing the charging strategy

Inactive Publication Date: 2017-11-07
厦门电力勘察设计院有限公司
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Problems solved by technology

On the one hand, for old residential areas, whether the current transformer capacity can meet the needs of electric vehicles; on the other hand, for newly built communities, conventional estimation methods are no longer applicable to the situation of electric vehicles

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  • Method for predicting transformer capacity of residential area in consideration of access of electric vehicles
  • Method for predicting transformer capacity of residential area in consideration of access of electric vehicles
  • Method for predicting transformer capacity of residential area in consideration of access of electric vehicles

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Embodiment Construction

[0021] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0022] The invention provides a method for predicting the capacity of transformers in residential areas considering the access of electric vehicles, which will greatly promote the construction of electric vehicle charging stations and charging piles in view of the fact that my country's electric vehicle industry will enter a period of rapid development, and the charging behavior of a large number of electric vehicles It will have a great impact on the power grid. Firstly, by analyzing the characteristics of the electricity load in the residential area, drawing the load curve in the residential area cycle, and calculating the capacity of the residential area that can be used for charging electric vehicles; secondly, by analyzing the probability distribution of the mileage of electric vehicles in the residential area, the electric The daily ...

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Abstract

The invention relates to a method for predicting the transformer capacity of a residential area in consideration of the access of electric vehicles. In view of the fast development of electric vehicle industry in China, the construction of electric vehicle charging stations and charging posts is greatly promoted. The charging behavior of a large number of electric vehicles has a greater impact on a power grid. The method comprises steps of: drawing a residential area periodic load curve and calculating the capacity for an electric vehicle charging requirement of the residential area by analyzing the electric load characteristic of a residential area; second, calculating the daily trip distance of the residential area electric vehicles by analyzing the probability distribution of residential area electric vehicle trip distance; then calculating the expected value of the battery state of the residential area electric vehicles according to a linear relation between the battery state of the residential area electric vehicles and the electric vehicle trip distance, and further calculating the total expected charging amount of the residential area electric vehicles; and finally, determining whether to expand the capacity of the transformer in the residential area and the capacity required to expanded by comparing a daily charging amount requirement with the load surplus of the residential area.

Description

technical field [0001] The invention is a method for predicting the capacity of transformers in residential areas considering the access of electric vehicles. Background technique [0002] As my country shifts its focus to the clean industry, the government has increased its support for the electric vehicle industry. my country's electric vehicle industry will enter a period of rapid development, which will also greatly promote the construction of electric vehicle charging stations and charging piles. The charging behavior of a large number of electric vehicles will have a greater impact on the power grid. On the one hand, for old residential areas, whether the current transformer capacity can meet the needs of electric vehicles; on the other hand, for newly built communities, conventional estimation methods are no longer applicable to the situation of electric vehicles. [0003] Different methods have been proposed at home and abroad to deal with the charging of large-scal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/003
Inventor 郭国太陈芳刘在国叶文水许祥睿林志权
Owner 厦门电力勘察设计院有限公司
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