Electric vehicle charging method and system

An electric vehicle and charging pile technology, applied in the field of electric vehicle charging methods and systems, can solve the problem of not considering the influence of electric vehicle users and node charging piles, and achieve the effect of optimizing the load curve

Active Publication Date: 2021-03-26
SHENZHEN POWER SUPPLY BUREAU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a charging method and system for electric vehicles to solve the defect that t

Method used

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  • Electric vehicle charging method and system
  • Electric vehicle charging method and system
  • Electric vehicle charging method and system

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Embodiment 1

[0095] Based on the first embodiment of the present invention, the second embodiment of the present invention provides an electric vehicle charging system, including a first acquisition unit for acquiring the node position information of the electric vehicle in the current travel chain and the first state of charge at the current moment Information; a possible decision-making behavior determination unit, used to determine the possible decision-making behavior of the electric vehicle at each other node in the travel chain according to the first state of charge information and the current node position information; the state of charge transition probability determination unit, It is used to obtain the second state of charge information of the charging pile at the current moment, and determine the state of charge transition probability of the charging pile according to the second state of charge information and the possible decision-making behavior; the optimal decision-making beha...

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Abstract

The invention provides an electric vehicle charging method and system. The method comprises the steps: obtaining position information of a node where an electric vehicle is located in a current trip chain and first state-of-charge information of the electric vehicle at the current moment; determining a possible decision behavior of the electric vehicle at each of other nodes in the trip chain according to the first state-of-charge information and the current node position information; acquiring second state-of-charge information of the charging pile at the current moment, and determining the state-of-charge transition probability of the charging pile according to the second state-of-charge information and the possible decision behavior; and determining an optimal decision-making behavior of the electric vehicle based on the minimum peak-valley difference of the total load curve of the power distribution network according to the state-of-charge transition probability of the charging pile, and controlling the charging of the electric vehicle according to the optimal decision-making behavior. The method can optimize the load curve of the power distribution network.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to an electric vehicle charging method and system. Background technique [0002] Electric vehicle (EV) is a zero-emission or low-emission green transportation tool. Its large-scale promotion can effectively alleviate the increasingly severe social problems such as energy crisis and environmental pollution, so it has attracted widespread attention from all walks of life. The interaction between electric vehicle and grid (Vehicle to Grid, V2G) refers to the optimal management of charging and discharging behavior of electric vehicles through reasonable strategies and advanced communication means. [0003] In the prior art, most of the research on the charging and discharging behavior of electric vehicles is based on the assumed charging period and charging method, ignoring the randomness of the state of charge of electric vehicles in time and space, and less consideration is given to ...

Claims

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Application Information

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IPC IPC(8): B60L53/63B60L53/62B60L53/14
CPCB60L53/63B60L53/62B60L53/14Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 刘雪飞李俊邵良友许伯阳曹阳李扬
Owner SHENZHEN POWER SUPPLY BUREAU
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