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:
Mar. 11, 2025
Filed:
Dec. 22, 2022
Fronius International Gmbh, Pettenbach, AT;
Harald Kreuzer, Pettenbach, AT;
Roland Pieler, Pettenbach, AT;
Christoph Pernegger, Pettenbach, AT;
Richard Grasboeck, Pettenbach, AT;
Fronius International GmbH, Pettenbach, AT;
Abstract
In a method for operating an inverter assembly and inverter assembly for carrying out the method, to reduce the risk of triggering a ground fault circuit interrupter, before feeding in the alternating voltage, the leakage capacitance to ground is determined at the DC input of each inverter, and which AC output is connected to which line of the supply network is determined, and, taking into consideration the leakage capacitance and a defined maximum leakage current and the connection situation at the AC output, the power units are asymmetrically modulated so that the amplitudes of the voltages at the AC outputs of the power units differ in size. The voltage with the greater amplitude comes about at the AC output of this power unit connected to the phase connection. The voltage with the lower amplitude comes about at the AC output of the power unit connected to the neutral conductor.