(19)
(11) EP 3 931 955 A1

(12)

(43) Date of publication:
05.01.2022 Bulletin 2022/01

(21) Application number: 19708287.8

(22) Date of filing: 27.02.2019
(51) International Patent Classification (IPC): 
H02M 5/458(2006.01)
 H02M 7/483(2007.01)
(52) Cooperative Patent Classification (CPC):
H02M 5/458; H02M 7/4835; H02M 7/483
(86) International application number:
PCT/EP2019/054903
(87) International publication number:
WO 2020/173563 (03.09.2020 Gazette 2020/36)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(71) Applicant: ABB Power Grids Switzerland AG
5400 Baden (CH)

(72) Inventors:
  • SCHAAD, Thomas
    4538 Oberbipp (CH)
  • VASILADIOTIS, Michail
    8004 Zurich (CH)
  • STAMATIOU, Georgios
    72217 Västerås (SE)
  • SVENSSON, Jan
    72346 Västerås (SE)

(74) Representative: AWA Sweden AB 
P.O. Box 45086
104 30 Stockholm
104 30 Stockholm (SE)

   


(54) AC-TO-AC MMC WITH REDUCED NUMBER OF CONVERTER ARMS