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. 04, 2023
Filed:
Aug. 05, 2019
Hitachi Energy Switzerland Ag, Baden, CH;
Arne Schroeder, Bern, CH;
Didier Cottet, Zürich, CH;
Wojciech Piasecki, Cracow, PL;
Filip Grecki, Rutihof, CH;
Bernhard Wunsch, Baden-Dättwil, CH;
Torsten Nilsson, Västerås, SE;
Hitachi Energy Switzerland AG, Baden, CH;
Abstract
A converter apparatus includes a string of electrically interconnected modules that includes a first group of modules comprising a first module and a second group of modules comprising a second module. A first screen is connected to a first defined electric potential and is located adjacent the first group of modules and a second screen is connected to a second defined electric potential and is located adjacent the second group of modules. During operation of the converter apparatus a resonance loop is created from the first module via the first and second screens and the second module back to the first module. A damping unit is located in the resonance loop and is set to dampen electromagnetic noise.