US 11,955,607 B2
Monitoring system for an energy storage
Anders Eggert Maarbjerg, Ulstrup (DK); and Lóránd Bede, Herning (DK)
Assigned to KK WIND SOLUTIONS A/S, Ikast (DK)
Appl. No. 17/757,738
Filed by KK Wind Solutions A/S, Ikast (DK)
PCT Filed Dec. 17, 2020, PCT No. PCT/DK2020/050376
§ 371(c)(1), (2) Date Jun. 20, 2022,
PCT Pub. No. WO2021/129912, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. PA 2019 70832 (DK), filed on Dec. 23, 2019.
Prior Publication US 2023/0223604 A1, Jul. 13, 2023
Int. Cl. H01M 10/48 (2006.01); H01M 10/42 (2006.01); H01M 50/51 (2021.01); H02J 7/00 (2006.01)
CPC H01M 10/425 (2013.01) [H01M 10/482 (2013.01); H01M 50/51 (2021.01); H02J 7/0013 (2013.01); H02J 7/0047 (2013.01); H02J 7/0049 (2020.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An energy storage comprising a plurality of series connectable energy modules forming a string of energy modules, wherein each of the energy modules are connected to the string via a plurality of switches, wherein the plurality of switches are implemented in an H-bridge and located on a switch printed circuit board,
the energy storage further comprises a string controller configured for controlling which of the energy modules that are part of a current path through the string by control of the status of a plurality of switches, and
an energy storage monitoring system configured for monitoring at least one energy module operating parameter of the plurality of energy modules, the energy storage monitoring system comprises:
a current sensor configured for communicating with the string controller, and
a plurality of energy module printed circuit boards, wherein each of the energy modules are associated with one of the pluralities of energy module printed circuit board and wherein each of the plurality of energy module printed circuit boards is configured for communicating with the string controller,
wherein the plurality of energy module printed circuit boards are configured for establishing an energy module operating parameter of the associated energy module and provide the established energy module operation parameter to the string controller,
wherein the current sensor is configured for establishing the current in the current path through the string and provide the current to the string controller, and
wherein the string controller is configured for by-passing an energy module based on information of status of the plurality of switches, the measured current in the current path through the string and the energy module operating parameter measured at the energy modules.