Charging pile intelligent power distribution system and method thereof

A technology of intelligent power and charging piles, applied in the direction of secondary battery charging/discharging, current collectors, electric vehicles, etc., can solve the problems of increased construction investment, waste of transformer capacity, low utilization rate, etc., to reduce construction investment, reduce No-load loss, the effect of reducing the difficulty and cost of retrofit

Active Publication Date: 2015-10-28
中国人民解放军96911部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power of a single charging pile is generally above 5kW, which is equivalent to the peak power consumption of a single household. After installing a large number of charging piles, it is necessary to increase the capacity of the transformer, which increases the construction investment, and the load of the charging pile has a strong peak-valley characteristic. The time utilization rate is very low, which causes a waste of transformer capacity and increases the time for the transformer to operate at a low load rate, which is not conducive to energy saving and consumption reduction

Method used

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  • Charging pile intelligent power distribution system and method thereof
  • Charging pile intelligent power distribution system and method thereof
  • Charging pile intelligent power distribution system and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1: see attached figure 1 , an intelligent power distribution system for charging piles, characterized in that it includes: a controller host 1, a plurality of controller extensions 2 arranged at each charging pile 5, connecting the controller host 1 and the controller extensions 2 communication bus 3;

[0030] The controller host 1 reads the load rate of the transformer 4 in real time, judges the remaining available power of the transformer 4, determines the number of available charging piles 5, and sends a charging or stop charging instruction to the controller extension 2;

[0031] The controller extension 2 monitors the car access sensor and the electric vehicle current and voltage sensor of the charging pile 5; when an electric vehicle is connected to the charging pile 5, it sends a charging request to the controller host 1; during the charging process , send the in-use status information of the charging pile 5 to the controller host 1; send the charging...

Embodiment 2

[0032] Embodiment 2: see attached figure 1 , as described in Embodiment 1, the charging pile intelligent power deployment system is characterized in that: the controller host 1 has an interface for communicating with the upper computer, and displays the load rate of the transformer 4, the number of charging piles in use, and the waiting time in real time. Display of information on the number of charging piles.

Embodiment 3

[0033] Embodiment 3: see attached figure 2 , 3 , a charging pile intelligent power allocation method, which uses the charging pile intelligent power allocation system described in embodiment 1 or 2, and includes the following steps:

[0034] A. The controller host 1 performs the following operations:

[0035] A1. receiving the voltage and current information of the transformer 4 sensor, and calculating the load ratio of the transformer 4;

[0036] A2. Determine whether the load rate is lower than the preset lower threshold; if yes, turn to step A3, otherwise turn to step A5;

[0037] A3. Determine whether there is a charging request from the controller extension 2; if there is, turn to step A4; if not, turn to step A1;

[0038] A4. Send a charging command to one of the controller extension 2 that sent the charging request; then go to step A1;

[0039] A5. Determine whether the load rate is higher than the preset upper threshold; if yes, turn to step A6, otherwise turn to ...

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Abstract

The present invention belonging to a power control device and more particularly relates to the transformer load control caused by multiple charging piles. The technical scheme is that the system comprises a controller host machine (1), a plurality of controller extension machines (2) arranged at charging piles (5) and a communication bus (3) which is connected between the controller host machine (1) and the controller extension machines (2). By applying the system and the method, all charging piles in a housing estate can be controlled in real time, a power use peak is staggered, construction investment can be reduced for new residential housing estates and enterprises, transformer zero load loss can be reduced, and electrical system transformation difficulty and cost can be greatly reduced for a built housing estate with the need of adding charging piles.

Description

technical field [0001] The invention belongs to power control equipment, in particular to the transformer load control caused by multiple charging piles. Background technique [0002] With the popularization of electric vehicles, the demand for charging piles in residential quarters, enterprises and institutions, and large parking lots is increasing. However, in the current situation, a large number of charging piles face many problems. Taking residential quarters as an example, the load of charging piles was not considered during the construction of residential quarters. A large increase in charging piles will cause the transformer to work at full load or even overload, causing circuit breakers to operate, power quality to decline, and transformer life to decrease. question. Therefore, many communities prohibit owners from installing charging piles by themselves. For new communities, when the builder asks the designer to consider the load of charging piles, it will also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/10
Inventor 刘金萍谭可可宋鹏超肖军浪高东飞林青山刘宏达方仲元姜智敏
Owner 中国人民解放军96911部队
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