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(11)

EP 4 348 798 A1

(12)

(43) Date of publication: 10.04.2024 Bulletin 2024/15 (21) Application number: 22729031.9 (22) Date of filing: 24.05.2022

(51) International Patent Classification (IPC):  H02J 7/00(2006.01) H01M 10/44(2006.01) G01R 31/392(2019.01) (52) Cooperative Patent Classification (CPC): H02J 7/005; H02J 7/0013; H02J 7/0031; H02J 7/0016; H02J 7/007182; G01R 31/392; H01M 10/441; G01R 31/396; H01M 10/425; H01M 2010/4271; H01M 10/482 (86) International application number: PCT/DK2022/050105 (87) International publication number: WO 2022/248002 (01.12.2022 Gazette 2022/48)

(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 (30) Priority: 26.05.2021 DK PA202100551 (71) Applicant: VESTAS WIND SYSTEMS A/S 8200 Aarhus N (DK)	(72) Inventors: ERIKSEN, Emil Haldrup 8200 Aarhus N (DK) SANCAR, Ugur 8200 Aarhus N (DK) (74) Representative: Vestas Patents Department  Hedeager 42 8200 Aarhus N 8200 Aarhus N (DK)