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Method for charging and navigating electric vehicles on basis of traffic information and power grid information

A technology of electric vehicles and traffic information, applied in electric vehicle charging technology, electric vehicles, surveying and navigation, etc., can solve problems such as overload and power loss, adverse effects of power system, and no vehicle charging

Active Publication Date: 2013-08-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, EV charging can have adverse effects on the power system, such as overloading and power loss
At the same time, if a large number of electric vehicles go to a certain charging station for charging, it may cause vehicles to wait too long at some stations and no vehicles to charge at other stations.

Method used

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  • Method for charging and navigating electric vehicles on basis of traffic information and power grid information
  • Method for charging and navigating electric vehicles on basis of traffic information and power grid information
  • Method for charging and navigating electric vehicles on basis of traffic information and power grid information

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Embodiment Construction

[0033] The charging and navigation method for electric vehicles proposed by the present invention, which takes traffic information and grid information into account, has a flow chart as shown in figure 2 shown, including the following steps:

[0034](1) The traffic control center selects the area to be navigated, numbers the intersections in the area, defines the intersections as the start and end of the road, and converts the start and end of the road into nodes in the traffic map. During the numbering process, the charging station and the junction of the traffic network and the outside world are also set as an intersection. These intersections are all the nodes in the road network. If there is a road directly connected between two intersections that does not pass through other intersections, a line is used to connect the corresponding nodes of the two intersections. All roads and nodes form a traffic graph. The length of the road from point e to point f in S ef Indicates...

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Abstract

The invention relates to a method for charging and navigating electric vehicles on the basis of traffic information and power grid information, and belongs to the field of operation and control technology for power systems. The method includes abstracting a road traffic network to form a traffic map and acquiring traffic flow data of various roads; computing the maximum charging power of a next moment according to prediction of future load of a distribution network and regulating the maximum number of quick chargers allowed to be started in each charging station in a future period; and monitoring various information and charging requests of the electric vehicles in real time, computing the shortest charging completion durations of a certain vehicle traveling to the various charging stations after the certain vehicle uploads a charging request, selecting the charging station corresponding to the smallest value of the shortest charging duration and navigating the electric vehicle to the charging station. The method has the advantages that the available charging load of a power system is maximized on the basis that safe and stable running of the power system is guaranteed, a charging mode with the minimum time consumption is selected from the viewpoint of a vehicle owner so as to determine a navigation route, the travel efficiency of the vehicle owner is improved, and the vehicle owner can actively follow charging guidance.

Description

technical field [0001] The invention relates to an electric vehicle charging and navigation method considering traffic information and grid information, and belongs to the technical field of power system operation and control. Background technique [0002] The internationally accepted SAEJ1772-2010 standard specifies three charging methods: AC Level1 for slow charging, AC Level2 and DC charging for fast charging. Among them, slow charging is mainly completed by charging piles, and the charging time is more than 6 hours, which is suitable for electric vehicles that are parked for a long time. The fast charging is mainly completed in the charging station, and the charging time is 15 minutes to 2 hours. It is suitable for emergency charging of electric vehicles and daily charging of buses and taxis, and the charging power at this time can be regarded as electric vehicle charging. of the maximum power. However, EV charging may cause adverse effects on the power system, such as...

Claims

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Application Information

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IPC IPC(8): G08G1/0968G01C21/34
CPCG01C21/3469B60L2240/622B60L2240/68B60L2240/70B60L2240/72B60L2240/80B60L2260/52B60L2260/54Y02T90/16Y02T10/7072B60L58/12B60L53/67B60L53/66Y02T10/70Y02T10/72Y02T90/12Y02T90/14
Inventor 郭庆来孙宏斌张伯明吴文传辛蜀骏李正烁
Owner TSINGHUA UNIV
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