US 12,230,998 B2
Multiple output energy storage
Anders Eggert Maarbjerg, Ulstrup (DK); Dorrit Zenner Torp, Vildbjerg (DK); and Lóránd Bede, Herning (DK)
Assigned to KK Wind Solutions A/S, Ikast (DK)
Appl. No. 18/245,180
Filed by KK Wind Solutions A/S, Ikast (DK)
PCT Filed Sep. 17, 2021, PCT No. PCT/DK2021/050286
§ 371(c)(1), (2) Date Mar. 14, 2023,
PCT Pub. No. WO2022/057991, PCT Pub. Date Mar. 24, 2022.
Claims priority of application No. PA 2020 70601 (DK), filed on Sep. 18, 2020.
Prior Publication US 2023/0361595 A1, Nov. 9, 2023
Int. Cl. H02J 9/06 (2006.01); H02J 7/00 (2006.01); H02M 7/483 (2007.01)
CPC H02J 9/062 (2013.01) [H02J 7/0013 (2013.01); H02J 7/0024 (2013.01); H02J 7/00714 (2020.01); H02J 7/007182 (2020.01); H02M 7/483 (2013.01); Y02B 10/70 (2013.01); Y04S 10/14 (2013.01); Y04S 20/12 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A high power uninterruptible power supply connectable to a stationary electric system, the high power uninterruptible power supply comprising:
an electric cabinet comprising a battery string, the battery string comprising a plurality of battery modules each associated individually with a switching arrangement wherein the switching arrangements each comprises four switches configured in an H-bridge and are configured to include the associated battery module in or exclude the associated battery module from the battery string and thereby to establish a current path through the battery string, including at least two battery module of the plurality of battery modules,
a first uninterruptible power supply output electrically connected to a first end of the battery string and which is connectable to a first load of the stationary electric system,
a second uninterruptible power supply output electrically connected to the battery string so as to facilitate supplying a load with the voltage of at least one battery module,
a string controller configured to receive a control reference and based thereon configured for controlling the operation state of switches of the switching arrangements and thereby the current path through the battery string and thereby the voltage level and current direction of the first and second uninterruptible power supply output.