US 12,003,107 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 Aug. 10, 2022, as Appl. No. 17/885,177.
Application 17/885,177 is a continuation of application No. 16/940,737, filed on Jul. 28, 2020.
Application 16/940,737 is a continuation of application No. 15/383,518, filed on Dec. 19, 2016, granted, now 10,778,025, issued on Sep. 15, 2020.
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 2022/0393471 A1, Dec. 8, 2022
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)] 27 Claims
OG exemplary drawing
 
1. A method comprising:
transferring, using a plurality of power converters in a first mode and a second mode, power between a plurality of energy storage devices and an electrical network, wherein each power converter of the plurality of power converters is respectively coupled to an energy storage device of the plurality of energy storage devices, and output terminals of the plurality of the power converters are coupled to form a series string;
wherein the transferring in the first mode comprises: each power converter, of the plurality of power converters, discharging its respectively coupled energy storage device based on a state of charge of its respectively coupled energy storage device relative to a state of charge of another energy storage device of the plurality of energy storage devices;
wherein the transferring in the second mode comprises: each power converter, of the plurality of power converters, charging its respectively coupled energy storage device based on the state of charge of its respectively coupled energy storage device relative to the state of charge of the another energy storage device; and
wherein the transferring in the first mode further comprises: each power converter, of the plurality of power converters, maintaining a voltage conversion ratio based on a battery charge fraction of its respectively coupled energy storage device.