US 11,695,331 B2
Converter arrangement
Arne Schroeder, Bern (CH); Didier Cottet, Zürich (CH); Wojciech Piasecki, Cracow (PL); Filip Grecki, Rutihof (CH); Bernhard Wunsch, Baden-Dättwil (CH); and Torsten Nilsson, Västerås (SE)
Assigned to Hitachi Energy Switzerland AG, Baden (CH)
Appl. No. 17/633,077
Filed by Hitachi Energy Switzerland AG, Baden (CH)
PCT Filed Aug. 5, 2019, PCT No. PCT/EP2019/071032
§ 371(c)(1), (2) Date Feb. 4, 2022,
PCT Pub. No. WO2021/023369, PCT Pub. Date Feb. 11, 2021.
Prior Publication US 2022/0337154 A1, Oct. 20, 2022
Int. Cl. H02M 1/44 (2007.01); H02M 7/483 (2007.01); H02M 1/00 (2006.01); H02M 3/00 (2006.01); H02J 3/01 (2006.01); H02M 7/00 (2006.01)
CPC H02M 1/44 (2013.01) [H02J 3/01 (2013.01); H02M 1/0064 (2021.05); H02M 3/01 (2021.05); H02M 7/003 (2013.01); H02M 7/4835 (2021.05)] 20 Claims
OG exemplary drawing
 
1. A converter apparatus comprising:
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 connected to a first defined electric potential node and located adjacent the first group of modules;
a second screen connected to a second defined electric potential node and located adjacent the second group of modules, wherein 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; and
a damping unit in the resonance loop, the damping unit being set to dampen electromagnetic noise.