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:
Sep. 06, 2016
Filed:
Mar. 31, 2014
Sma Solar Technology Ag, Niestetal, DE;
Johannes Lang, Gradenau, DE;
Thomas Wegener, Kassel, DE;
Marcel Kratochvil, Kassel, DE;
Holger Behrends, Rhaudernfehn, DE;
Michael Viotto, Kassel, DE;
SMA SOLAR TECHNOLOGY AG, Niestetal, DE;
Abstract
The disclosure relates to a method for detecting an arc in a DC circuit. The method includes measuring and analyzing an AC component (I) of a current (I) flowing in the circuit and determining at least one parameter of the AC component (I). The level of a DC component (I) of the current (I) is varied and a degree of correlation between the level of the DC component (I) of the current (I) flowing in the DC circuit and the at least one parameter of the AC component (I) is determined. An arc is detected and selectively signaled based on the degree of the determined correlation. The disclosure also relates to an apparatus for carrying out the method and to an inverter comprising such an apparatus.