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Bidirectional management system for electric vehicle charging pile

A technology of electric vehicles and management systems, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve problems such as the burden of community transformers, achieve multiple functions, avoid waste of resources, and be convenient to use

Inactive Publication Date: 2020-02-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a two-way management system that coordinates and manages the charging and discharging of electric vehicles during charging in a certain charging pile or in a community, and repairs the battery. Charging into the community power grid will bring a burden to the community transformer, and at the same time effectively use the discharge of the battery during repair

Method used

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  • Bidirectional management system for electric vehicle charging pile
  • Bidirectional management system for electric vehicle charging pile
  • Bidirectional management system for electric vehicle charging pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Refer to attached figure 1 As shown, in this embodiment, a two-way management system for electric vehicle charging piles includes:

[0047] Power grid, the power grid is a 220V AC distribution network;

[0048]Two-way control circuit, the two-way control circuit is respectively connected with the power grid and the two-way control circuit, when the electric vehicle is charged, it also includes the rechargeable battery of the electric vehicle connected with the human-computer interaction device, and the human-computer interaction device is used to collect the rechargeable battery and The information of the power grid, and by controlling the bidirectional control circuit, the charging or discharging between the power grid and the rechargeable battery is realized;

[0049] The charging pile, the two-way control circuit and the human-computer interaction equipment are all set in the charging pile, and the two-way control circuit is set above the human-computer interaction ...

Embodiment 2

[0059] In this embodiment, various states in use are mainly introduced.

[0060] Specifically, charging and discharging are included.

[0061] First, discharge: that is, discharge when the battery is repaired, and feed it back to the grid

[0062] The charging or discharging between the grid and the rechargeable battery includes the charging of the battery by the grid and the online repair of the battery by the grid. of electricity is fed back to the grid.

[0063] In this technical solution, when repairing the battery, through online repair, the battery status can be observed in time, problems can be found early, and the service life of the battery can be extended; Use the electricity too clean, generally keep the battery at about 20%~80% electricity. Charging and discharging do not reach the maximum capacity of the battery 100%, that is, the charging is not full, and the discharging is not complete.

[0064] Shallow charge described in this technical proposal refers to t...

Embodiment 3

[0072] In this embodiment, the bidirectional control circuit is mainly introduced.

[0073] Refer to attached figure 1 and 2 It can be known that the bidirectional control circuit includes a bidirectional DC-DC circuit, and the bidirectional DC-DC circuit includes a BUCK working mode and a BOOST working mode.

[0074] In this technical solution, two modes of operation are adopted to realize two modes of step-down and step-up, so as to cooperate with the charging and discharging between the power grid and the rechargeable battery.

[0075] Refer to attached image 3 It can be seen that the bidirectional DC-DC circuit includes a first switch tube and a second switch tube, and the human-computer interaction device realizes BUCK working mode or BOOST by controlling the conduction sequence of the first switch tube and the second switch tube. Operating mode.

[0076] Specifically, two switching tubes are arranged in parallel, and the first switching tube is set close to the powe...

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Abstract

The invention discloses a bidirectional management system for an electric vehicle charging pile. The system involves a power grid, a bidirectional control circuit, a human-computer interaction deviceand a charging pile, wherein the power grid is a 220V alternating current power distribution network; the bidirectional control circuit is connected with the power grid and a charging battery and is used for charging or discharging between the power grid and the charging battery; the human-computer interaction device is connected with the power grid and the bidirectional control circuit, and further comprises the charging battery of an electric vehicle connected with the human-computer interaction device when the electric vehicle is charged, wherein the human-computer interaction device is used for collecting information of the charging battery and the power grid, and realizing charging or discharging between the power grid and the charging battery by controlling the bidirectional controlcircuit; and the bidirectional control circuit and the human-computer interaction device are all arranged in the charging pile, and the human-computer interaction device comprises one of an input device, an output device or one of the input device and the output device.

Description

technical field [0001] The invention relates to the technical field of energy storage devices, in particular to a two-way management system for electric vehicle charging piles. Background technique [0002] The concept of new energy is becoming more and more popular and the support of national policies for electric vehicles has made the sales of electric vehicles increase year by year. Electric vehicles have gradually replaced traditional vehicles and become the mainstream of the automotive industry. However, the increase in the use of electric vehicles has brought a number of problems: [0003] 1. A large number of electric vehicles connected to the grid for charging at the same time will impact the distribution transformer of the community, resulting in an increase in the burden on the transformer, especially during the peak period of power consumption, which will seriously affect the distribution transformer of the community and shorten its life; [0004] 2. The problem ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/60
CPCB60L53/60Y02T10/70Y02T10/7072Y02T90/12
Inventor 王素娥周超红郝鹏飞燕晨阳罗熠文王伯赢罗鑫涛
Owner SHAANXI UNIV OF SCI & TECH
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