US 12,255,457 B2
Method and apparatus for storing and depleting energy
Meir Gazit, Ashkelon (IL)
Assigned to Solaredge Technologies Ltd., Herzeliya (IL)
Filed by Solaredge Technologies Ltd., Herzeliya (IL)
Filed on Jul. 28, 2020, as Appl. No. 16/940,737.
Application 16/940,737 is a continuation of application No. 15/383,518, filed on Dec. 19, 2016, granted, now 10,778,025.
Application 15/383,518 is a continuation of application No. 13/803,212, filed on Mar. 14, 2013, granted, now 9,548,619, issued on Jan. 17, 2017.
Prior Publication US 2021/0013727 A1, Jan. 14, 2021
Int. Cl. H02J 3/32 (2006.01); H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02M 3/158 (2006.01); H02M 7/217 (2006.01)
CPC H02J 3/32 (2013.01) [H02J 7/00 (2013.01); H02J 7/0013 (2013.01); H02J 7/0018 (2013.01); H02J 7/0068 (2013.01); H02J 7/0071 (2020.01); H02J 7/02 (2013.01); H02M 3/1582 (2013.01); H02M 7/217 (2013.01); H02J 7/0025 (2020.01)] 16 Claims
OG exemplary drawing
 
1. A method for managing a plurality of energy storage devices, comprising:
transferring, by using a plurality of power converters operating independently, power from the plurality of energy storage devices to a load such that the plurality of energy storage devices reach a plurality of predetermined charge states, respectively, at a common discharging end time,
wherein each of the plurality of power converters comprises first terminals and second terminals;
wherein the plurality of power converters are connected one-to-one with the plurality of energy storage devices via the first terminals;
wherein the second terminals of the plurality of power converters are connected in series to the load; and
wherein the transferring comprises, for each energy storage device of the plurality of energy storage devices:
determining a battery charge fraction associated with the energy storage device; and
independently maintaining, during the transferring, a voltage conversion ratio of a corresponding power converter, of the plurality of power converters, to be proportional to a reciprocal of the battery charge fraction for the energy storage device.