US 12,407,158 B2
Arc detection and prevention in a power generation system
Ilan Yoscovich, Givatayim (IL); Guy Sella, Bitan Aharon (IL); Meir Gazit, Ashkelon (IL); Yoav Galin, Raanana (IL); David Braginsky, Yokne'am (IL); Lior Handelsman, Givatayim (IL); Meir Adest, Modiin (IL); Yakir Loewenstern, Ariel (IL); Tzachi Glovinsky, Petah Tikva (IL); Nadav Berkovitch, Petah Tikva (IL); Ron Neuman, Ramat Hasharon (IL); and Amir Fishelov, Tel Aviv (IL)
Assigned to Solaredge Technologies Ltd., Herzeliya (IL)
Filed by Solaredge Technologies Ltd., Herzeliya (IL)
Filed on Sep. 7, 2022, as Appl. No. 17/939,078.
Application 17/939,078 is a continuation of application No. 17/344,436, filed on Jun. 10, 2021, granted, now 11,489,330.
Application 17/344,436 is a continuation of application No. 16/856,683, filed on Apr. 23, 2020, granted, now 11,070,051, issued on Jul. 20, 2021.
Application 16/856,683 is a continuation of application No. 15/819,903, filed on Nov. 21, 2017, granted, now 10,673,229, issued on Jun. 2, 2020.
Application 15/819,903 is a continuation in part of application No. 15/407,881, filed on Jan. 17, 2017, granted, now 10,673,222, issued on Jun. 2, 2020.
Application 15/407,881 is a continuation in part of application No. 15/250,068, filed on Aug. 29, 2016, granted, now 10,230,310, issued on Mar. 12, 2019.
Application 15/407,881 is a continuation in part of application No. 13/290,528, filed on Nov. 7, 2011, granted, now 9,647,442, issued on May 9, 2017.
Claims priority of provisional application 62/395,461, filed on Sep. 16, 2016.
Claims priority of provisional application 62/341,147, filed on May 25, 2016.
Claims priority of provisional application 62/318,303, filed on Apr. 5, 2016.
Claims priority of application No. 1018872 (GB), filed on Nov. 9, 2010.
Prior Publication US 2023/0006434 A1, Jan. 5, 2023
Int. Cl. H02J 3/38 (2006.01); H02H 1/00 (2006.01); H02H 3/20 (2006.01); H02H 7/20 (2006.01); H02S 50/00 (2014.01); H02S 50/10 (2014.01)
CPC H02H 1/0015 (2013.01) [H02H 3/20 (2013.01); H02H 7/20 (2013.01); H02J 3/38 (2013.01); H02S 50/00 (2013.01); H02S 50/10 (2014.12); H02J 3/381 (2013.01); H02J 2300/24 (2020.01); Y02E 10/56 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining first, second, third and fourth sets of voltage measurements from a plurality of power devices connected in a serial string;
determining first, second, third, and fourth voltage values associated with first, second, third, and fourth timestamps respectively, wherein:
the first voltage value is a sum of the first set of voltage measurements,
the second voltage value is a sum of the second set of voltage measurements,
the third voltage value is a sum of the third set of voltage measurements,
the fourth voltage value is a sum of the fourth set of voltage measurements;
determining a first differential voltage using the first voltage value and the second voltage value;
determining a second differential voltage using the third voltage value and the fourth voltage value;
detecting a trend using the first differential voltage and the second differential voltage;
determining that the trend is an uncontrolled trend; and
controlling power based on the uncontrolled trend.