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:
Nov. 04, 2025
Filed:
May. 05, 2022
Fronius International Gmbh, Pettenbach, AT;
Mohsen Rezaei, Pettenbach, AT;
Maria Crespo Cordo, Pettenbach, AT;
Fronius International GmbH, Pettenbach, AT;
Abstract
A method for improving an operational behavior of an inverter (), said method comprising the steps of calculating (S) a capacitance, C, of an AC capacitor of said inverter () for each electrical power supply phase (L) of the inverter () on the basis of a measured voltage signal and a measured current signal for the respective electrical power supply phase (L) during a startup of said inverter () when the inverter () is separated by a grid relay () from a public or stand-alone power supply grid () or backup system; and compensating (S) automatically an observed change of the capacitance, C, of the AC capacitor over time by adjusting the AC current generated by the inverter () for the respective electrical power supply phase (L) to optimize a reactive current injection.