US 11,705,733 B2
Method for controlling an exchange power between a charging infrastructure and an electricity supply grid
Johannes Brombach, Berlin (DE)
Assigned to Wobben Properties GmbH, Aurich (DE)
Filed by Wobben Properties GmbH, Aurich (DE)
Filed on Nov. 30, 2021, as Appl. No. 17/538,115.
Claims priority of application No. 20210656 (EP), filed on Nov. 30, 2020.
Prior Publication US 2022/0173594 A1, Jun. 2, 2022
Int. Cl. H02J 3/32 (2006.01); B60L 53/00 (2019.01); B60L 58/22 (2019.01); B60L 58/12 (2019.01); H02J 7/00 (2006.01)
CPC H02J 3/322 (2020.01) [B60L 53/00 (2019.02); B60L 58/12 (2019.02); B60L 58/22 (2019.02); H02J 7/0014 (2013.01); H02J 7/0025 (2020.01); H02J 7/0048 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A method for controlling a power exchange between a charging infrastructure and an electricity supply grid, wherein:
a plurality of power units are configured to be connected to the charging infrastructure for delivering or drawing electrical power to exchange electrical power between the plurality of power units and the electricity supply grid via the charging infrastructure, and
a number of the plurality of power units are in each case an electric vehicle, and so a plurality of electric vehicles are configured in each case to be connected to the charging infrastructure to exchange electrical power between the plurality of electric vehicles and the electricity supply grid via the charging infrastructure and thereby charge or discharge the plurality of electric vehicles,
each power unit of the plurality of power units has a variable state of charge, which in each case is configured to be taken into consideration as an individual state of charge when the respective power unit is connected to the charging infrastructure, the method comprising:
from the individual states of charge of the plurality of power units, determining an overall state of charge, and
predefining for a control time period, for the overall state of charge, a flexibility range which spans a range, in dependence on time, in which the overall state of charge may occur, wherein the flexibility range is spanned by a progression over time of an upper limit of the overall state of charge and a progression over time of a lower limit of the overall state of charge for the control time period,
wherein the flexibility range has range points which in each case are able to be defined by a value of the overall state of charge and a point in time in the control time period,
wherein a range point is in each case assigned an overall power interval, wherein the overall power interval predefines in relation to the point in time and in relation to the overall power of the range point a range to be maintained for an overall exchange power to be exchanged between the charging infrastructure and the electricity supply grid,
wherein the overall power intervals of all of the range points span an overall power space over the flexibility range that is to be maintained for the overall exchange power, and
wherein the overall power interval of a range point depends on the individual states of charge of the power units on which the overall state of charge of the range point is based.