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Method and device for limiting charging pile power

A charging power and power limitation technology, applied in circuit devices, battery circuit devices, charging stations, etc., can solve the problems of unable to meet the rated output power of charging piles, large changes in power consumption, and slowing down the charging speed of users

Active Publication Date: 2019-11-05
WANBANG CHARGING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the replacement rate of the vehicle is much greater than the consumption rate of the charging pile, and the rated input power of the vehicle is developing towards an increase, so the rated output power of the charging pile is less than the rated input power of the vehicle.
[0004] In addition, in view of the large changes in the electricity consumption of residents in different time periods in the community, under the premise that the maximum power supply power of the community is limited, the preset power supply power of the target charging station in the community will also be corresponding in different time periods. Therefore, the power that the target charging station can allocate to each charging pile for power supply may be sufficient to meet the rated output power of all charging piles, but may not be able to meet the rated output power of all charging piles
[0005] Therefore, the matching situation between the actual maximum output power of the charging pile and the rated input power of the vehicle is variable. Among them, the actual maximum output power of some charging piles is greater than the rated input power of the vehicle and has not been fully utilized; while The actual maximum output power of some charging piles is less than the rated input power of the vehicle, slowing down the user's charging speed, thus affecting the utilization rate of charging piles in the target charging station or affecting the user's charging experience

Method used

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  • Method and device for limiting charging pile power
  • Method and device for limiting charging pile power
  • Method and device for limiting charging pile power

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Effect test

Embodiment 1

[0073] An embodiment of the present invention provides a method for limiting the power of a charging pile, such as figure 1 Shown, including:

[0074] Step S102: Obtain the first output power sent by the activated charging pile, where the activated charging pile is the charging pile belonging to the target charging station.

[0075] Specifically, the first output power refers to the output power of the charging pile to the vehicle. After the charging pile is started, if the vehicle has not yet been charged, the first output power refers to the rated output power of the charging pile, that is, when the vehicle is provided with electric energy. The maximum possible output power; if the vehicle is already being charged, the first output power refers to the output power that the charging pile is providing electrical energy to the vehicle.

[0076] In addition, acquiring the first output power sent by the activated charging pile may be acquiring the first output power sent by the activate...

Embodiment 2

[0135] An embodiment of the present invention provides a device for limiting the power of a charging pile, such as image 3 Shown, including:

[0136] The first obtaining module 100 is configured to obtain the first output power sent by the activated charging pile, where the activated charging pile is the charging pile belonging to the target charging station;

[0137] The calculation module 200 is configured to calculate the first difference between the first target output power and the preset power supply, where the first target output power is the sum of the first output powers of all activated charging piles;

[0138] The limiting module 300 is used to determine the second output power of the activated charging pile based on the first target output power, the first difference and the first output power when the first difference is greater than zero, and to set the activated charging pile The charging power is limited to the second output power.

[0139] Specifically, the charging ...

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Abstract

The invention provides a limiting method and device for the power of charging piles and relates to the technical field of charging piles. The method comprises the steps that first output power sent by the started charging piles is obtained; a first difference between first target output power and preset electricity supply power is calculated, wherein the first target output power is the sum of the first output power of all the started charging piles; and under the condition that the first difference is larger than zero, second output power of the started charging piles is determined based on the first target output power, the first difference and the first output power, and the charging power of the started charging piles is limited to the second output power. The technical problem that the matching condition between the maximum power which can be actually output by the charging piles and the rated input power of vehicles is uncertain is relieved.

Description

Technical field [0001] The invention relates to the technical field of charging piles, and in particular to a method and device for limiting the power of a charging pile. Background technique [0002] The charging pile is used to provide electric energy for electric vehicles, and its electric energy input terminal is directly connected to the charging station, and the electric energy output terminal is connected to the vehicle. [0003] At present, in general, the rated output power of charging piles is mostly 40KW, 60KW, and 120KW. The rated input power of electric vehicles is generally about 30KW, and the rated output power of charging piles is greater than the rated input power of the vehicle. However, the rate of vehicle replacement is much greater than the rate of consumption of the charging pile, and the rated input power of the vehicle is developing in the direction of increasing, so the rated output power of the charging pile is less than the rated input power of the vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/31H02J7/00
CPCB60L53/31B60L53/63H02J7/0077Y02T10/70Y02T10/7072Y02T90/12
Inventor 储丹邵丹薇郑隽一
Owner WANBANG CHARGING EQUIP CO LTD