An intelligent detection method for electric vehicle charging control

Abstract

The invention provides an intelligent detection method for electric vehicle charging control, comprising the following steps: A. An information acquisition sub-module collects information from a front-end charging terminal to form a data stream record, and collects information at intervals during the entire charging process; B. Background modeling analysis to form a background analysis model; C. The access control sub-module sends control instruction information to the front-end charging terminal according to the preset charging mode value obtained by the background analysis model; D. The intelligent charging control detection module is based on real-time collected data Stream records, use the method of incremental classification decision tree to build a decision tree classification model; E. Compare the local analysis model and the background analysis model; F. Transfer the comparison result of step E to the background analysis system software, and refer to the local analysis model for pre-judgment Categorize target values ​​and optimize back-end analysis models. While the present invention achieves the local high-efficiency detection function, the background system can continuously adjust and optimize the background analysis model according to the received results.

Description

technical field [0001] The invention relates to an intelligent detection method for electric vehicle charging control. Background technique [0002] The development of new energy vehicles is one of the main means for countries all over the world to deal with the energy crisis and environmental protection. With the rapid improvement of the service life and energy density of lithium-ion power batteries, various types of new energy vehicles have gradually entered the large-scale In the demonstration application stage, certain types of new energy vehicles have entered the commercialization stage. [0003] At present, the domestic electric vehicle replacement station has developed from the stage of technical verification of the initial Olympic Games and World Expo to the stage of commercial promotion and operation with a certain scale. During this development process, relevant core charging equipment, replacement equipment, and monitoring system software and hardware have been in...

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Problems solved by technology

[0003] At present, the domestic electric vehicle replacement station has developed from the stage of technical verification of the initial Olympic Games and World Expo to the stage of commercial promotion and operation with a certain scale. During this development process, relevant core charging equipment, replacement equipment, and monitoring system software and hardware have been industrialized. From the perspective of equipment performance indicators, product technology and reliability, it can meet the needs of battery replacement and charging. From the actual situation of current promotion and application, one of the main problems is that the charging load of the battery replacement station is affected by the law of vehicle operation. Larger, and most electric vehicles have morning and evening peak periods and flat peak periods, so that the load of the substation shows large load fluctuations, and the peak load time is close to the peak period of other conventional loads, which is not conducive to the transfer of urban distribution networks. The peak increases the valley, and brings certain difficulties to the access of the external power source of the swap station. At the same time, most of the charging electricity price of the swap station is the peak electricity price, resulting in high operating costs of the swap station.

[0004] The reasons for such problems are mainly that the vehicle charging management strategy is simple and the economy is poor.

At present, the actual operation of electric vehicle replacement stations adopts the charging and replacement management strategy that the vehicle returns to the station to replace the battery, and then recharges immediately after the replacement. It does not consider the operating characteristics of electric vehicles, battery charging costs, and load characteristics of the replacement station. Problems such as high charging cost and large load fluctuation

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