EP 4378065 A1 20240605 - METHOD FOR OPERATING AN INVERTER, AND INVERTER
Title (en)
METHOD FOR OPERATING AN INVERTER, AND INVERTER
Title (de)
VERFAHREN ZUM BETRIEB EINES WECHSELRICHTERS UND WECHSELRICHTER
Title (fr)
PROCÉDÉ DE COMMANDE D'UN ONDULEUR, ET ONDULEUR
Publication
Application
Priority
- DE 102021119899 A 20210730
- EP 2022068782 W 20220706
Abstract (en)
[origin: WO2023006370A1] The invention relates to a method for operating an inverter (100) with a DC input and an AC output. The DC input can be connected to a DC source (10), bridge branches (125) of a bridge circuit (110) are connected to the AC output via power chokes (L1ac, L1ac_a, L1ac_b, L2ac, L2ac_a, L2ac_b,L3ac, L3ac_a, L3ac_b), and the AC output can be connected to an AC grid (20, 30) via isolating switches (GR), wherein the inverter (100) is designed to feed electric power to the AC grid (20, 30). The method has the steps of: - opening the isolating switches (GR), and - actuating semiconductor switches (T1, T2, T3, T4, T5, T6) of at least two bridge branches (125) of the bridge circuit (110), said bridge branches being connected behind at least one power choke (L1ac, L1ac_a, L1ac_b, L2ac, L2ac_a, L2ac_b, L3ac, L3ac_a, L3ac_b) from the AC side such that a DC source (10) connected to the DC input is loaded, wherein the sum of the totality of currents flowing from at least one of the at least two bridge branches (125) on the AC side corresponds to the sum of the totality of currents flowing into at least one other bridge branch of the at least two bridge branches (125) on the AC side. The invention additionally relates to an inverter.
IPC 8 full level
H02M 1/36 (2007.01); H02M 1/32 (2007.01); H02M 7/487 (2007.01); H02M 7/5387 (2007.01); H02S 40/32 (2014.01)
CPC (source: EP US)
H02M 1/0064 (2021.05 - US); H02M 1/0077 (2021.05 - US); H02M 1/088 (2013.01 - US); H02M 1/36 (2013.01 - EP); H02M 7/53871 (2013.01 - EP US); H02M 1/322 (2021.05 - EP); H02M 7/487 (2013.01 - EP)
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021119899 A1 20230202; DE 102021119899 B4 20230525; CN 117751514 A 20240322; EP 4378065 A1 20240605; JP 2024525983 A 20240712; US 2024162837 A1 20240516; WO 2023006370 A1 20230202
DOCDB simple family (application)
DE 102021119899 A 20210730; CN 202280053215 A 20220706; EP 2022068782 W 20220706; EP 22747983 A 20220706; JP 2024505014 A 20220706; US 202418420895 A 20240124