Dynamic distribution method and device for electric vehicles and charging pile

A dynamic allocation, electric vehicle technology, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems that affect the charging efficiency of charging piles, the power of electric vehicles and charging piles is not allocated, and reduce the waiting time for charging , Realize dynamic matching and avoid waste of resources

Active Publication Date: 2021-01-29
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD HANGZHOU POWER SUPPLY CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional charging stations usually assign charging piles to electric vehicles in a random allocation method, which is prone to the problem of unallocated power between electric vehicles and charging piles, which affects the charging efficiency of charging piles

Method used

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  • Dynamic distribution method and device for electric vehicles and charging pile
  • Dynamic distribution method and device for electric vehicles and charging pile
  • Dynamic distribution method and device for electric vehicles and charging pile

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0054] like figure 1 As shown, the present invention proposes a dynamic allocation method for electric vehicles and charging piles, including:

[0055] S1: Obtain the charging request of the electric vehicle, and obtain the estimated charging time and charging power of the electric vehicle according to the charging request.

[0056] The charging request includes the charging voltage, charging current, total battery capacity and remaining power of the power battery on the electric vehicle. Wherein, the remaining power is calculated by the ratio of the mileage traveled by the electric vehicle to the preset maximum mileage, that is, the formula for calculating the remaining power S is:

[0057]

[0058] L is the mileage traveled by the electric vehicle, obtained through the odometer of the electric vehicle; L 0 The preset maximum mileage of the electric vehicle is a fixed factory parameter of the electric vehicle. In this embodiment, the remaining power S is in the form of ...

Embodiment 2

[0081] like figure 2 As shown, the present invention proposes a dynamic allocation device 5 for electric vehicles and charging piles, including:

[0082] Acquisition unit 51: used to obtain the charging request of the electric vehicle, and obtain the estimated charging time and charging power of the electric vehicle according to the charging request.

[0083] The charging request includes the charging voltage, charging current, total battery capacity and remaining power of the power battery on the electric vehicle. Wherein, the remaining power is calculated by the ratio of the mileage traveled by the electric vehicle to the preset maximum mileage, that is, the formula for calculating the remaining power S is:

[0084]

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Abstract

The invention provides a dynamic distribution method and device for an electric vehicle and a charging pile. The method comprises the steps of obtaining a charging request of the electric vehicle, andobtaining the predicted charging time and charging power of the electric vehicle according to the charging request; judging whether reservation information exists in the charging request or not, andallocating a priority to the electric vehicle according to a judgment result; based on the distributed priority, screening out the charging pile matching the charging power of the electric vehicle from available charging piles according to a matching strategy; and updating the available condition of the charging pile according to the matching result and the predicted charging time. Based on the charging performance of the electric vehicle, the charging pile capable of meeting the charging power of the electric vehicle is screened out, the resource waste phenomenon of charging piles is avoided,the charging pile is distributed to the electric vehicle based on the pre-distributed priority, it can be guaranteed that the electric vehicle can be charged in time to the maximum extent, and the charging waiting time is shortened.

Description

technical field [0001] The invention belongs to the field of charging pile allocation, and in particular relates to a dynamic allocation method and device for electric vehicles and charging piles. Background technique [0002] With the increasing share of electric vehicles in the market, in order to meet the charging needs of various types of electric vehicles, charging stations have established a certain number of charging piles with different output powers to meet the needs of charging electric vehicles with different power. . The charging time depends on the remaining power of the power battery (State of Charge, SOC) and the power distribution between the electric vehicle and the charging pile. It does not mean that the higher the power of the charging pile, the better. It causes a waste of charging pile resources. If the power of the charging pile is much lower than the required power of the electric vehicle, it will lead to too long charging time and reduce the chargin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/66
CPCB60L53/66Y02T10/70Y02T10/7072Y02T90/12Y02T90/16
Inventor 王伟福金正军宋书轩吴梦遥
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD HANGZHOU POWER SUPPLY CO
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