The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2020
Filed:
Sep. 17, 2018
Applicant:
Omron Corporation, Kyoto, JP;
Inventors:
Akihiko Sano, Uji, JP;
Kotaro Nakamura, Kusatsu, JP;
Kenji Kobayashi, Moriyama, JP;
Kohei Nakagawa, Kusatsu, JP;
Makoto Ide, Koka, JP;
Assignee:
OMRON Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02S 50/10 (2014.01); H02S 40/32 (2014.01); G01R 31/50 (2020.01);
U.S. Cl.
CPC ...
H02S 50/10 (2014.12); G01R 31/50 (2020.01); H02S 40/32 (2014.12);
Abstract
The disclosure is provided to improve the accuracy of a ground fault position detected from a power conditioning system. A ground fault position calculation part () calculates a ground fault position (P) by using a power supply voltage of a solar cell string (), a ground fault current (I), and a ground potential of an input terminal (N) measured by a power conditioning system (). The ground fault position calculation part () sets a lower limit value of the power supply voltage to be used.