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A power distribution method, device and medium applied to charging piles

A distribution method and charging pile technology, applied in charging stations, electric vehicle charging technology, electric vehicles, etc., can solve the problems of low DCDC use efficiency, overloaded PCS output power, and increased power distribution error, so as to improve safety and Efficiency, reasonable batch power output, and the effect of preventing power overload

Active Publication Date: 2021-08-27
FUJIAN NEBULA ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the total power requested by the DCDC is greater than the limited power of the PCS, all DCDC output power needs to be redistributed; as the number of DCDCs increases, the power allocation error may increase. For safety reasons, the output power of the PCS needs to be adjusted. additional restrictions
[0003] However, traditionally, the output power of PCS will cause voltage and current instability due to changes in the working environment, resulting in the risk of PCS output power overload; and the traditional way to reserve the output power of PCS is to directly spare several DCDC, the remaining DCDC is output at full power, resulting in unreasonable output power and low efficiency of DCDC

Method used

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  • A power distribution method, device and medium applied to charging piles
  • A power distribution method, device and medium applied to charging piles
  • A power distribution method, device and medium applied to charging piles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a power distribution method applied to charging piles, such as figure 1 shown, including the following steps:

[0047] Step S10, setting a PCS reserved load ratio interval, for example, 20% to 30%; obtaining the reserved load ratio R of the PCS reserve , based on the reserved load ratio interval to the reserved load ratio R reserve Make validity judgments;

[0048] Step S20, obtain PCS rated power P PCS , the number n of DCDCs, the first requested power P of each DCDC dcdcRst , each DCDC rated power P dcdcMax , The second requested power P of the electrical equipment rst [n], where n is a positive integer;

[0049] Step S30, based on the PCS rated power P pcs and the reserved load ratio R reserve Calculate the maximum power P that the PCS allows to output pcsOut ;

[0050] Step S40, setting a power distribution coefficient a and a power compensation coefficient b, based on the PCS rated power P PCS , number n, power distribution coeff...

Embodiment 2

[0076] This embodiment provides a power distribution device applied to charging piles, such as figure 2 As shown, it includes a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, any implementation manner in Embodiment 1 can be realized.

[0077] Since the equipment introduced in this embodiment is the equipment used to implement the method in Embodiment 1 of this application, based on the method described in Embodiment 1 of this application, those skilled in the art can understand the specific implementation of the equipment in this embodiment Ways and various variations thereof, so how the device implements the method in the embodiment of the present application will not be described in detail here. As long as a person skilled in the art implements the equipment used by the method in the embodiment of the present application, it all belongs to the protection scope of the present a...

Embodiment 3

[0080] This embodiment provides a power distribution medium applied to charging piles, such as image 3 As shown, a computer program is stored thereon, and when the computer program is executed by a processor, any implementation manner in the first embodiment can be realized.

[0081] The technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0082] Used to verify the reserved load ratio by setting Rreserve Validity of the reserved load ratio range, only when the reserved load ratio R reserve The power distribution output is performed only when it is in the preset reserved load ratio range, which effectively prevents the power overload of the PCS; the power distribution coefficient a and the power compensation coefficient b are set to calculate the priority distribution power value P dcdcFirst , to realize the priority allocation of power value P dcdcFirst Make dynamic adjustments to adapt to ...

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PUM

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Abstract

The present invention provides a power distribution method, equipment and medium applied to charging piles in the technical field of charging piles. The method includes: step 1, obtaining the reserved load ratio R reserve ; Step 2, get PCS rated power P PCS , DCDC number n, first requested power P dcdcRst , rated power P dcdcMax , the second request power P rst [n]; step 3, based on P pcs , R reserve Calculate PCS maximum power P pcsOut ;Step 4, set the coefficients a, b, based on P PCS , n, a, b to calculate the priority distribution power value P dcdcFirst ; Step 5, based on P dcdcRst ,P dcdcFirst Classify DCDC, get weighted and preferentially allocated DCDC, weighted request power P weightRst [i]; step 6, based on P rst [n], P weightRst [i] Calculate the weighted distribution weight W[n]; step 7, based on P dcdcFirst , W[n], P pcsOut ,P dcdcFirst Calculate the weighted distribution power P weightLimit [n]. The advantage of the present invention is that the rationality of power distribution is improved, thereby improving the safety and efficiency of charging piles.

Description

technical field [0001] The invention relates to the technical field of charging piles, in particular to a power distribution method, equipment and medium applied to charging piles. Background technique [0002] With the development of new energy vehicles, charging piles have gradually become popular in people's lives. During the use of the charging pile, in order to prevent the PCS (Power Conversion System) from being overloaded, it is necessary to reserve a certain margin in the output power, that is, the output power of the DCDC (Direct Current Converter) must be less than the limited power of the PCS. When the total power requested by the DCDC is greater than the limited power of the PCS, all DCDC output power needs to be redistributed; as the number of DCDCs increases, the power allocation error may increase. For safety reasons, the output power of the PCS needs to be adjusted. Additional restrictions. [0003] However, traditionally, the output power of PCS will cause...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/62B60L53/31
CPCB60L53/31B60L53/62Y02T10/70Y02T10/7072Y02T90/12
Inventor 李有财熊刚陈平池圣松吴晨燨
Owner FUJIAN NEBULA ELECTRONICS CO LTD