Method of controlling the charging process

A charging process and charging power technology, applied in charging stations, electric vehicle charging technology, battery/fuel cell control devices, etc., can solve problems such as inability to achieve cost-effectiveness

Active Publication Date: 2021-10-22
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the methods known from the prior art is that, on the one hand, a cost-effective method cannot be implemented, and on the other hand, it has to be assumed that the arrival time and departure time of the electric vehicle are known

Method used

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  • Method of controlling the charging process
  • Method of controlling the charging process
  • Method of controlling the charging process

Examples

Experimental program
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Embodiment Construction

[0032] figure 1 Exemplary first and second charging profiles 104, 106 are shown. The second charging curve 106 corresponds to the charging curve of the method according to the invention.

[0033] In order to obtain the minimum total charging power 42 , the arrival time, departure time and charging energy of multiple electric vehicles were collected in the past day (first time period). exist figure 1 The ordinate of the shown schematic diagram shows the instantaneous total charging power drawn from the grid in kWh. The time of the current day (second period) is plotted on the abscissa 100 of the schematic diagram.

[0034] The first charging profile 104 corresponds to the FCFS method without limiting the instantaneous total charging power. In this case, each electric vehicle starts its charging process as soon as it arrives, that is to say, with the maximum possible charging power.

[0035]As can be seen from the schematic diagram shown, the FCFS method produces power peak...

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Abstract

The invention relates to a method for controlling the charging process of a plurality of electric vehicles comprising the steps of: - providing a data record comprising the arrival time, departure time and charging energy of said electric vehicles during a first time period ;- Obtaining the minimum total charging power (42) from the data record by means of a computing device, wherein the minimum total charging power (42) obtained can realize the calculation of each electric vehicle between its arrival time (114) and departure time substantially complete charging (112) during the period; - charging the electric vehicle with at most the determined minimum total charging power (42) during a second period following the first period.

Description

technical field [0001] The invention relates to a method for controlling a charging process, in particular a method for controlling a charging process of a plurality of electric vehicles. Background technique [0002] In the case of charging infrastructures which enable the charging of several electric vehicles, high power peaks can occur for a period of time which burden the grid connected to the charging infrastructure. These voltage or power peaks are usually billed separately by the operator of the grid. If the charging infrastructure is assigned to a building, for example, there is generally a maximum total charging power that can be removed (discharged) from the grid to the greatest extent for this building. The maximum total charging power must not be exceeded at any time, especially when charging electric vehicles. [0003] A difficulty here is that it is often not known how many other electric vehicles are arriving and have to be charged. In particular, the above...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B60L53/66
CPCB60L53/31B60L53/64B60L53/63B60L58/13B60L53/62B60L53/66Y02T90/16Y02T90/14Y02T10/7072Y04S10/126Y02E60/00Y02T10/70Y02T90/12
InventorM.杜尔凯姆J.赖因施克
OwnerSIEMENS AG