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Flexible adjustment method for charging of charging pile

An adjustment method and charging pile technology, applied in the field of distribution network

Pending Publication Date: 2022-07-29
国网重庆市电力公司营销服务中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a flexible adjustment method for charging pile charging in view of the above shortcomings, to solve the problems of how to flexibly adjust the output power of the charging pile, and legally authenticate the charging pile.

Method used

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  • Flexible adjustment method for charging of charging pile
  • Flexible adjustment method for charging of charging pile
  • Flexible adjustment method for charging of charging pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see attached Figures 1 to 3 . A flexible adjustment method for charging a charging pile, comprising the following steps;

[0033] Step 1) When there are n legal charging piles that need to be charged, the power supply interface device obtains the rated power P of the distribution transformer area. N , the real-time output of the first phase power P in the distribution transformer area A (t), the second phase power P B (t), the third phase power P C (t), the real-time output power P of the power supply interface device to each charging pile already in use i (t), the real-time demand power of each charging pile

[0034] Step 2) Calculate the real-time remaining capacity P of the distribution transformer area rc (t):

[0035]

[0036] where k is the allowable overload factor in the distribution transformer area, P N ×k is the maximum output power allowed in the distribution transformer area, MAX(P A (t), P B (t), P C (t)) is the first phase power P A (t),...

Embodiment 2

[0044] see attached Figures 1 to 3 . On the basis of Embodiment 1, the real-time remaining capacity P rc (t) The redistribution step is: the power supply interface device is based on the priority value A of each charging pile i for the real-time remaining capacity P rc (t) Reassignment is performed, and priority assignment steps are performed. It can be seen from the above structure that the priority value A is i It is determined comprehensively by some parameter values, and the priority value A is established in advance i The corresponding relationship list with different parameter values ​​is entered, and the corresponding relationship list is entered into the control unit 5 . When the need for real-time remaining capacity P rc (t) When redistributing, each charging pile obtains the value of the relevant parameters according to the actual situation, and transmits the parameter value to the control unit 5 through the HPLC carrier communication device, and the control u...

Embodiment 3

[0049] see attached Figures 1 to 4 . On the basis of Embodiment 2, before step 1), it also includes a legal judgment step of judging whether the charging pile is a legal device, specifically:

[0050] Step a. Determine whether the connector of the charging pile can be inserted into the interface of the power supply interface device; if so, perform step b; if not, determine that the charging pile is an illegal device;

[0051] Step b. Determine whether the first ferrule in the connector of the charging pile can cooperate with the second ferrule in the interface of the power supply interface device; if so, perform step c, if not, determine that the charging pile is an illegal device;

[0052]Step c. The power supply interface device sends the charging password to the charging pile. If the power supply interface device can receive the correct charging decoding returned by the charging pile, the charging pile is a legal device, otherwise the charging pile is an illegal device. ...

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Abstract

The invention discloses a flexible adjustment method for charging of charging piles, and belongs to the technical field of power distribution networks, and the method comprises the steps: obtaining the rated power of a distribution transformer district collected by a power supply interface device, the real-time output three-phase power of the distribution transformer district, the real-time output power of each charging pile in use, and the real-time demand power of each charging pile; calculating the real-time residual capacity of the distribution transformer district and the total real-time demand power of the charging piles; comparing the real-time residual capacity with the total real-time demand power; and a step of redistributing the real-time residual capacity. Under the condition that bidirectional information interaction between a user and a power supply side is realized through a power supply interface device, the flexible adjustment method for charging of the charging pile can flexibly adjust the output power of the charging pile, so that the user participates in power grid interaction adjustment as required, and an authentication mechanism for the charging pile is established.

Description

technical field [0001] The invention belongs to the technical field of distribution network, and in particular relates to a flexible adjustment method for charging of a charging pile. Background technique [0002] In the field of energy consumption, the replacement of fossil fuels with clean electricity and the efficient use of energy have been widely carried out, which has spawned a large number of emerging electricity businesses and new electricity facilities. Taking electric vehicles as an example, by the end of 2021, the number of new energy vehicles will reach 7.84 million, and the number of charging piles will reach 2.617 million. At present, the existing power supply technology to solve the charging pile, because the power supply side and the user side cannot carry out two-way information exchange, and the potential release of the adjustable, controllable and flexible charging of the charging pile for charging vehicles has obvious shortcomings. SUMMARY OF THE INVENT...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/60B60L53/31
CPCB60L53/60B60L53/31
Inventor 成涛吴高林胡晓锐汪会财郭恒张向东张雨晴龙羿朱彬徐婷婷
Owner 国网重庆市电力公司营销服务中心
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