A method for detecting charging power of an electric vehicle

A technology for electric vehicles and charging power, which is applied in the direction of electric vehicles, measuring electric power, and electrical devices, etc., and can solve the problem of few modeling methods
CN103513098BActive Publication Date: 2016-04-20STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2016-04-20

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Abstract

The invention relates to a charging power detection method for an electric car. The charging power detection method for the electric car comprises the following steps that (1) a charging battery of the electric car is analyzed; (2) a model is built based on the diffusion theory according to the analysis result; (3) a diffusion equation is obtained according to the diffusion model; (4) the total charging power of the electric car is obtained according to the diffusion equation. The charging power detection method for the electric car takes the key factors, affecting the total charging load, such as charging power, the number of electric cars, a staring SOC, the starting charging time and the capacity of the battery all into account, and can predict the SOC state of the battery at a certain time.
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Description

Technical field

[0001] The invention belongs to the charging and swapping technology of electric vehicles, and particularly relates to a method for detecting the charging power of electric vehicles. Background technique

[0002] The large-scale application of electric vehicles will bring new challenges to the construction of charging facilities and grid operation. The power grid basically has no storage capacity (except for some pumped storage), so power generation and transmission must try to match the fluctuations in the electricity load. With the continuous increase in R&D investment and breakthroughs in key technologies, China will enter a period of rapid development of electric vehicles, especially electric passenger vehicles. After the large-scale application of electric vehicles is formed, this will bring new improvements to the development of charging facilities and the operation of the power grid. Challenges: (1) Initiate new load growth and further increase the peak-to...

Claims

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